Welcome to a unique platform, Jobs in crypto, powered by Cointelegraph
with a list of jobs opportunities inside the blockchain, fintech and crypto industries.
IOTΛ Foundation - Senior Tech Analyst (Remote)

Senior Tech Analyst (Remote)

IOTΛ Foundation Berlin, Berlin, Germany

The IOTA Foundation is a not-for-profit organization headquartered in Berlin, Germany. The Foundation’s mission is to support the development and standardization of new distributed ledger technologies (DLT) that drive permissionless innovation ecosystems, in particular the IOTA Tangle. The IOTA Tangle is an innovative type of DLT specifically designed for the Internet-of-Things (IoT) environment. It is an open-source protocol facilitating novel Machine-to-Machine (M2M) interactions, including secure data transfer, fee-less real-time micropayments, and the collection and dissemination of sensor-based and other types of ‘oracle’ data.

Job Description

Currently, we are looking for a Senior Tech Analyst. The function of the Tech Analyst is to support the key, strategic industry partners on behalf of IOTA foundation. This is a hands-on external facing technical position. Creating and communicating best practices, and assisting external partners with their requirements are key elements of this role. We are looking for an experienced solution architect who loves to solve complex problems, and who is eager to learn new technologies while working on the next generation of DLT products. We aim to build applications using IOTA libraries to demonstrate use cases for IOTA technology.

We are working with partners in different industries one of them the mobility sector, where we are currently witnessing great changes and at the same time many opportunities for IOTA to be applied. While technological breakthroughs have vehicles enabled to be more and more connected and increasingly autonomous as well, the traditional business models of car manufacturers need to change accordingly. A frictionless transfer of value and assets is a prerequisite for this digital economy around machines and IOTA is the technology to build the tools for it.

You will join a team that has the overall responsibility for market adoption efforts, defines the global go-to-market approach, and identifies and qualifies strategic partnerships and opportunities within industry vertical or ecosystem arenas.

We aim to build a portfolio of strategic PoCs and pilots to showcase the feasibility and desirability of IOTA, define the strategic communication incl. key messages and target group in collaboration with the communication department. Our goal is to establish IOTA as a trustworthy partner. In addition to that, we engage proactively with influencers and decision-makers to shape the framework conditions for DLT in the industry.

Our team, like our technology, is distributed. For this position, you can choose to work remotely from anywhere in the world, or you can work out of our satellite offices in Berlin (HQ), Tel Aviv, or later this year Singapore, Taipei.

Job Responsibilities

  • Own the technical aspect of the relationship to partners from ideation to execution
  • Define technical requirements for executing proof of concept projects and support implementation of same
  • Support ideation and identification of opportunities to develop PoC’s and pilots together with partners to showcase IOTA’s capabilities
  • Support building visual concepts and create prototypes and mockups
  • Communicate problems, requirements and suggestions from industry partners to core developers in a structured way
  • Provide technical direction and architectural governance
  • Detailed infrastructure architecture and design governance across the full stack of the project
  • Propose appropriate design and implementation decisions of solution
  • Propose appropriate technology choices and the processes required to implement them
  • Develop relationship with the partners expert community to demonstrate thought leadership and become a trusted point in the relationship
  • Translate the IF's developments (products) into the partners business cases and vice versa
  • Understand partner and industry specific technology trends and requirements

Job Qualifications

  • Strong communicator and high level of fluency in spoken and written English
  • BS or MS in computer science / engineering or related preferred
  • Several years of experience in software development in at least two of the following fields: Web, Mobile, Backend, Embedded, IoT
  • Experience in technical consulting and strong interaction with external parties
  • Experience in developing with IOTA or other DLT´s preferred
  • Enjoy cross-functional collaboration and shared responsibility in small team settings
  • Enjoy on the job learning of new technologies
  • Experience in the automotive/aviation/mobility/manufacturing industry
  • Strong English written and verbal communication skills
  • Ability to operate with a high degree of independence

We offer our employees:

  • Constant technology challenges
  • Opportunity to be a high-impact contributor
  • Work with the best engineers in their field
  • Casual and fun work environment from anywhere in the world with a reliable internet connection

The IOTA Foundation is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

**We are currently accepting applicants from Australia, Brazil, Canada, (the) EU, Israel, Norway, Pakistan, Singapore, Switzerland, Taiwan, (the) UK and (the) US. Residents of these countries, are welcome to submit an application, residents of all other countries will be put on hold until we can hire in other areas.

NEM - Software Engineer (C++)

Software Engineer (C++)

NEM Antwerpen, Flanders, Belgium

NEM is looking for a Software Engineer to join our driven team focused on the continued development of the NEM Blockchain technology. You are highly motivated with a passion for fault tolerant and distributed systems and have the ability and confidence to analyze situations and make impactful decisions.


  • Work with the development team to build features on the core protocol roadmap;
  • Design, build, maintain and take ownership of software modules and services;


  • 5+ years of industry experience, preferably with fault tolerant or distributed systems;
  • Proficient with latest c++ language features;
  • Ability to collaborate with colleagues working remotely;
  • Good communication skills;
  • Experience with blockchain is a strong plus.
  • You value team success over personal success

What do we offer

We are a young and dynamic organisation in full expansion that is active in an innovative sector at international level; plenty of challenges and a wide range of tasks to fulfill.

A high level of involvement and flexibility (this works in two directions) to organize your work according to your own preferences (within reason).

Opportunity to grow in the company.

Selection procedure

We all know that applying for a job can be a painstaking process. We are trying to make it as simple as possible.

Send us your CV and your motivation letter (EN). Just be yourself!

If we see the potential, we will organize a video call that fits both agendas.

If we are both convinced, we will arrange a meeting at our office, you will meet the team and we will inform you about the in and outs of the company and the tasks at hand.

If we are both happy and fully committed, we finalize all formalities and start our collaboration. - Developer Relations Advocate

Developer Relations Advocate Blacksburg, Virginia, United States of America

As a Developer Relations Advocate, you will be working in the Developer Relations team and reporting to the Head of Developer Relations. You will be a bridge between community and developers, representing products outwardly to the community and the community inwardly to the internal developers. You will be working closely with our EOS.IO core development team and other internal development teams, communicating the development of products to internal and external stakeholders. You will be contributing and managing content such as tutorials, guides, reference documentation for the EOS.IO Developer Portal and other products communication channels. You will also work with a wider Developer Relations team, helping to strategize development of the Developers Portal, increasing the effectiveness of content through analytics and feedback. In addition, you will also work with internal and third party content creators to source quality content, such as blog posts, videos, webinars, etc. and will ensure effective distribution of that content.

This is an amazing opportunity for those who want to be “on the wave” of the latest and coolest tech in the industry.


  • Communicate products developments to internal stakeholders and external community
  • Engage with developers community, provide product feedback to internal stakeholders
  • Create, distribute and analyze developer content – tutorials, developer guides, newsletters, sample apps, client libraries
  • Organize and coordinate marketing engagement activities including social media campaigns, YouTube broadcasts, progress reports
  • Source, distribute and analyze developer content created by external parties
  • Identify content and process improvements through analytics and feedback
  • Champion our products in person and online by presenting at conferences, workshops, blogging, videos and other similar activities


  • MUST speak fluent and written English with good presentation and communication skills
  • Experience writing tutorials, guides, API docs, sample apps
  • Experience writing code in C++/JavaScript
  • Strong organizational skills to juggle multiple tasks within the constraints of timelines and budgets with a high degree of business acumen

About LLC LLC is a creator of Decentralized Autonomous Corporations (DACs), a concept introduced by CTO Daniel Larimer in 2014 that empowers open source communities to disrupt existing centralized business models. Currently we, along with others globally, are developing EOS.IO, a revolutionary open-source decentralized blockchain infrastructure that will be used worldwide as the basis for developing countless high-throughput blockchain applications. We are looking for extraordinary technology professionals to join the LLC team in our continuing quest to enhance, refine and scale EOS.IO for our rapidly expanding developer community.

Are you hiring?

Digital Asset - Product Architect (DAML Modeler)

Product Architect (DAML Modeler)

Digital Asset New York City, New York, United States of America

Digital Asset is among the fastest growing, most recognized fintech startups globally and is the market leader in developing distributed ledger technology applied to the market infrastructure and financial services sector. Backed by leading financial institutions, infrastructure providers, and financial software providers, the company is delivering enterprise-grade solutions for post-trade services.

Digital Asset applies a rigorous, customer-driven approach to deliver on our vision for a better global financial system enabled by distributed ledger technology.

  • Our culture is "all-in" and rewards collaboration, integrity, and excellence.
  • We value each other, what we do for our clients, and how we do it.
  • Our mission is delivering breakthrough distributed ledger solutions.

As we grow our team, we will maintain the dynamic, collaborative, and pragmatic way of working that has grounded our efforts from the beginning. If you seek to develop solutions others are yet to contemplate and are driven by the opportunity to have impact, the following opportunity may be right for you.


Product Architects leverage deep technical and domain expertise to create products that meet and anticipate clients’ complex requirements - either as part of Core Products ensuring the design and delivery of commercial, production-grade software or as part of Applications interacting with clients to create product-specific solutions. In partnership with DA Engineers and clients, Product Architects model market structure and workflow processes leveraging DAML, our domain specific language.

Key Responsibilities

  • While on any given day, you may primarily code, this is a Product role - you will be required to design creative solutions, products, and methods that drive our product strategy and scope
  • Collect and define requirements based on a dynamic assessment of functional and non-functional capabilities
  • Work directly with clients, including market infrastructure specific solutions, sometimes on-site
  • Develop formal models of financial business processes and propose innovative improvements to them
  • Solve difficult problems with pragmatic and efficient code
  • Contribute to the evolution of our proprietary modeling language
  • Meaningfully contribute to our platform architecture and evolving product roadmaps

Key Criteria

  • A deep understanding of financial markets and processes; The candidate must understand the strategy of markets as well as its mechanics; Knowing the underlying motivation and impetus for market behaviors will enable the candidate to formulate stronger approaches and solutions
  • Product Architects are often asked to be a ‘one person show’ and must be capable of taking an abstract idea and turning it into a strategic, pragmatic solution in code and/or well specified requirements
  • Excellent computer science fundamentals; Command of data structures, algorithms, and design patterns with ability to fluently translate them into working, elegant code.
  • Proficient in functional languages (e.g., Scala, Haskell)
  • A careful blend of creativity and pragmatism; Digital Asset is part of a community bootstrapping a technology and demand for the technology while simultaneously on tight delivery timelines
  • Committed to sustainable, tested development, and quality as evidenced by pursuit of design excellence and use of leading automated testing tools and methodologies
  • Demonstrated experience successfully collaborating with others in a dynamic, fast-paced, pressured environment
  • Ability to effectively summarize and present validation findings to senior level executives within DA and at clients
  • Experience using Agile methodology and the Agile SCRUM framework
  • MSc or PhD in Computer Science, Mathematics or related field


  • Financial engineering experience as a “quant,” “strat,” or algo trading developer
  • Excellent communications skills, comfortable presenting complex concepts in front of a packed room of clients
  • Skilled in leading and working within an Agile environment, including participation in daily scrum meetings, backlog management, sprint definition, and retrospectives, preferably within a global team
BitPay - Development Intern

Development Intern

BitPay Alpharetta, Georgia, United States of America

We're looking for development interns to join our growing team! We are seeking candidates who are ambitious, have a strong desire to continuously learn, and an interest in cryptocurrency! As a member of our development team, you will work closely with talented developers who have a passion for cryptocurrency and changing the way the world pays for things! You’ll have the opportunity to work on meaningful projects while advancing your development skills.

  • BitPay development team members:
  • Deliver quality code that is tested, secure, and performant on a global scale
  • Value openness, collaboration, and continuous improvement
  • Extend and maintain our platform as we grow and add features
  • Have fun while working alongside highly skilled developers
  • See what we're building here!


  • Development experience with Node.js, Javascript, and MongoDB
  • Excellent communication and collaboration skills
  • An interest in cryptographic security concepts
  • Open-source project contributions preferred

This position is located in Alpharetta, GA.

Request Network - Back-end Developer

Back-end Developer

Request Network Amsterdam, 07, Kingdom of the Netherlands

We are looking for a Back-end developer who has a strong interest in blockchain technology, open-source, decentralization, security, and testing. You can work autonomously, have a strong integrity and are up for the challenge to build a more efficient future.

You will join the Request Network Foundation team, and specifically the Protocol Team, which is part of the YCombinator network. We share strong values and have been working together for several years.


  • Develop the Request Network protocol by adding new features, new currencies and improve scalability through research on Plasma and Tendermint
  • Implement and improving our JS library, helping support our nodes architecture - Help educating our community about how to build on Request
  • Contribute to a decentralized payment protocol built on the blockchain


  • Passionate about creating and releasing projects, as well as learning new languages - Be able to identify relations between parts of complex projects
  • Be able to demonstrate a deep understanding of the blockchain architecture
  • Hold a Master's in computer science or an equivalent field (STEM)
  • Proven analytical and proactive problem solving skills
  • Experience with modern development (ES6, Typescript, NodeJS, etc.). Knowledge of Solidity and Web3JS library is a plus
  • Optional: You have the skills to recreate the Rick and Morty Portal Gun and an opinion on how to avoid being trapped into one of the Black Mirror scenarios of the future


This role is based in Amsterdam. Remote work will be partially possible after a while.

Bitmain - Blockchain Security Engineer / Researcher

Blockchain Security Engineer / Researcher

Bitmain Amsterdam, 07, Kingdom of the Netherlands

Bitmain is seeking qualified and experienced security engineers/researchers to join our growing blockchain team. We are actively recruiting candidates with domain expertise in all aspects of blockchain security and improvement with a focus on applied cryptography, including but not limited to pairing-based cryptography, secure multiparty computation, smart-contract security and low-level implementation of crypto schemes.

You will:

  • Collaborate with a team of experienced software engineers and open source community to build and improve the Bitcoin Cash blockchain
  • Investigate into possible ways to reduce latency and improve throughput and secure the solution with cryptography technique, e.g. sharding, sidechain, DAG, lightning network etc.
  • Keep pace with the latest developments in blockchain field (both academic and industrial) with a focus on the application of cryptography



  • Master or PhD (preferred) degree in Information Security, Applied Mathematics, Cryptography
  • Highly analytical mind with good math skills and ability to read and understand academic papers
  • Good programming skills in C/C++, Go or Python to turn theory into codes
  • Good knowledge and strong interest in blockchain related decentralized technology - Product Manager

Product Manager Tokyo, Fukuoka Prefecture, Japan is THE premier source for everything Bitcoin related. We have an incredible culture driven by the Cryptocurrency industry's foremost leaders. We are building incredible products and services, and consequently, we are growing like crazy. We are looking for people who think outside the box, are willing to do what it takes to succeed and have a passion for the Cryptocurrency industry.

Most important to us are people who share our philosophies on government, the financial industry, and technology. is building a work culture like no other, with a suite of perks and working environment that is unrivaled. Our mission is changing the world, and chasing the course of human history.

We are looking for a product leader with a strong Product Manager background. Your experience with agile delivery, and a passion for creating next-gen Cryptocurrency products should be unparalleled. You must possess a unique blend of business and technical savvy; a big-picture vision, and the drive to make that vision a reality.


  • 3-5 years of Product Management experience in working with Web Applications
  • Manage the full product life-cycle of our Block Explorer + Satoshi Pulse and how it integrates with our business
  • Work closely with your engineering team, business development, marketing and c-level to bring ideas from conception to implementation
  • Express a clear vision for go-to-market strategies
  • Experience with project oversight in similar software builds, with an eye for quality and expediency of deliverables
  • Keep all projects on track
  • Understands the product intimately, and makes recommendations to drive improvement
  • Identify and build tools, processes that support developer productivity. Foster areas of improvement and communicate effectively across the org
  • Build effective content to drive developer engagement and optimal performance
  • Must be able to work independently, but report consistently to stakeholders
  • Laser focused bringing a product to market and making it best-in-class

Nice To Have

  • Blockchain and/or Cryptocurrency experience is a very nice-to-have background but not mandatory
  • Experience working with Financial Market Data, Cryptocurrency Wallets
  • Must be within 23 wards, or live in the APAC region but eager to live or travel to Japan if not a local
  • Has managed projects, understands JIRA
  • Data-driven decision making
  • Understanding Blockchain and developing server-side web applications for highly scalable services
  • PMI certification (not required)
  • FinTech product experience

This is an incredibly unique opportunity. We currently need someone to spearhead this project and take our Satoshi Pulse and Block Explorer products to the next level. We certainly have the resources to do it and is a fast growing successful brand with a ton of traction in the space. Our modern, progressive flat culture is to be desired and our way of working is the best in the world. You can experience the world, have fun, and build incredible products along the way

We are serious about what we do, but more importantly we have a ton of fun doing it. With our headquarters in St. Kitts where we regularly retreat, and offices in Tokyo, Sweden and Hungary, we are very excited about the future.

Please apply to this job so we can speak right away! Thank you.

Circle - Software Engineer, API

Software Engineer, API

Circle Boston, Massachusetts, United States of America

Circle is a global internet finance company, built on blockchain technology, powered by crypto assets, and dedicated to helping people everywhere create and share value.

We’ve already made sending money around the world free and easy using blockchain technology with Circle Pay. With Circle Invest, we’re expanding our offerings with a cryptocurrency investment product, enabling anyone to buy and sell crypto assets. Through Circle Trade, we’re market makers for the top crypto coins and offer OTC trading services. In March 2018, Circle acquired Poloniex, one of the world's leading token marketplaces.

As part of the product engineering team, you’ll create and iterate upon product features that will shape the future of Circle’s product. You will join a team of engineers and designers that share ideas and code that help us build apps that your friends and family love to use.

What you'll work on

  • Take the lead in developing product features from initial specs and API development, to the public release and announcement
  • Design and implement the APIs that Circle’s iOS, Android and Web clients run on
  • Collaborate with a fun, passionate team to help craft solutions to problems using the latest technologies
  • Learn more about Circle’s business domains while instructing others about development and design

What you'll bring to Circle

  • 4+ years of professional experience building/running an application in production using modern web technologies (Ruby on Rails, Flask or Node.js)
  • Experience working with SQL and NodeJS is desired
  • Desire to build and maintain the backbone of our system which powers our iOS, Android and Web clients
  • Real passion for writing beautiful, functional and well tested code
  • Interest in cryptocurrency, blockchain technology or social payments
Datawallet - Senior Data Engineer

Senior Data Engineer

Datawallet Berlin, Berlin, Germany

€40K – €80K

DataWallet is on a bold mission to give people full control over their data through a self-sovereign wallet paired with our decentralized C2B data marketplace. Our platform allows people to control who can access their data and for what purpose enabling them to profit from an asset that is rightfully theirs and make their data actionable by, e.g., personalizing web services by powering companies’ AI algorithms with their data. By harnessing the Blockchain to empower users to control and profit from the data they create we will disrupt the the $300 billion data brokerage market as envisioned by our early investors Tim Draper and Marc Benioff. The Role: We are looking for a full-time data engineer. You will be at the core of making people's data work for them. You will design and maintain the ETL data pipeline---from pulling and parsing data from various APIs to populating normalized RDBs and calculating cached views (usually in a NoSQL form) to power our various data products and services. While you are not constrained in your tools, our current stack involves Airflow, Python, js/node, PostgreSQL, MongoDB, and AWS hosting. You will be a core part of a highly skilled and motivated team located between Berlin and New York City that is changing one of the most unethical sectors in our modern economy. What We are Looking For: Minimum Qualifications ** At least 5 years of software engineering experience (Python or Javascript), with at least 2 years experience in a data-focused role , Expertise in building out data pipelines, efficient ETL design, implementation, and maintenance , Mastery of RDBs and ability to generate normative schemas from datasets , Experience with NoSql dbs (such as MongoDB) , Passion for creating data infrastructure technologies from scratch using the right tools for the job , Experience building and maintaining a data warehouse in production environments , Ability to turn vague requirements into clear deliverables with minimal guidance *Other desirable qualifications * , Experience with Apache Airflow, AWS tools, git, Linux. , Experience with systems for transforming large datasets such as Spark or Hadoop , Familiarity with Python-based data science tools (e.g., pandas) is also highly desirable. **Compensation: Highly competitive wages Flexible work hours New equipment: Macbook Pro, nice monitors, and Bose headphones Opportunities to travel to both the Berlin and New York City HQ
Hedera Hashgraph - Web Developer

Web Developer

Hedera Hashgraph Dallas, Texas, United States of America

About Hedera Hashgraph: We are a fast-growing company built around a revolutionary technology — the hashgraph consensus algorithm. Hedera Hashgraph is well-suited to become the world’s first mass-adopted distributed public ledger because it is blazing fast, highly secure and ensures fairness. We are on a mission to create a trusted and empowered digital future for everyone; a cyberspace where you work, play, buy, sell, create, and engage socially; where you have safety and privacy in your digital communities; where you feel confident when interacting with others... …we envision an internet where you — not a few large corporations — own and control your information. Hedera is global, ambitious and fast-paced. We balance our enthusiasm and mission with a measured approach to risk. We are well capitalized and looking to hire dedicated, collegial, hard-working, talented people to help achieve our vision. Join us and say, “Hello future.” Location: Dallas // London // Remote About The Role: You will be instrumental in an impactful, early stage company. Working as part of a small, but quick-moving team, you will be responsible for building, maintaining, and updating all of the web-related assets of Hedera, such as Key Duties: Consistently ship new versions and updates to all of our web properties , Maintain and document a variety of codebases , Help reach marketing team and company KPIs, such as monthly active users on the website portal Qualifications, Experience and Attributes: , Keen attention to detail , An eye for design is appreciated, but not required , An effective written communicatory of The ability to effectively communicate information and ideas in written format , Superior time management , Works well in supporting a remote team , Works well across stakeholders and teams: marketing, design, events, product , A great ability to identify potential negative or crisis situation and apply conflict resolution principles to mitigate issues , Proficient in HTML, CSS, & JavaScript , Experienced with React , Exposure to SCSS , Git , PHP , Craft CMS , Laravel Forge , Amazon Web Services (S3) , Interested in: Best practices / Security / Animations / Static site generators (Gatsby, Jekyll) / GraphQL / Styled Components , 3-5(+) years of relevant experience Attributes that will set you apart: , A passion for the distributed ledger technology (DLT) space; prior knowledge of projects and market, with an interest in maturing the industry dialogue around DLTs , Experience at a successful, early stage company , A high-quality, professional portfolio , A history of delivering critical websites on time , A cover letter or social media accounts to get to know you better; we are a distributed company on a mission, but we like to have fun and enjoy our work
Lisk - DevOps Engineer

DevOps Engineer

Lisk Berlin, Berlin, Germany

€40K – €100K

Blockchain technology will usher in a new era of decentralized internet, supporting innovation in and disruption of all major global industries and charitable causes. Before blockchain can fully achieve its potential, it needs mass adoption. Niche programming languages, lack of technological education and uninviting user interfaces have so far kept it away from many of those with the potential to use it. This is where Lisk comes in. Lisk is a blockchain application platform. We create tools to allow developers to build their own decentralised applications on our blockchain. All of our software is written using the mainstream language of JavaScript. Blockchain application builders also get the benefit of deploying their own, customizable sidechain, along with their own custom token. They also get the benefit of thorough documentation and friendly user interface. Our core values of blockchain accessibility, education and user-centricity guide not only our technology, but also our marketing and community channels. With the founding of Lisk Academy, we aim to educate and inspire as many as possible about their ability to realise their disrupting blockchain vision. Sounds amazing? We think so too! Therefore we are looking fora DevOps Engineer who can assist the Lisk project in configuring and orchestrating its entire development infrastructure. We are a small but rapidly growing team with extraordinary ambitions. Therefore, we are searching for excellent candidates with a wide set of skills, who can help us reach Lisk’s ambitious objectives. Basic requirements: Able to work from our office in Berlin , Team player with good communication skills , Result-oriented – you like to set your own goals and you do your best to achieve them , Out of the box thinker and enthusiastic problem solver , Detail-oriented – you have a high personal standard that you set for yourself and expect others to have the same , Self-motivated , Enjoy the fast-paced environment of a rapidly growing company , Ability to multitask Essential skill requirements: , Operating systems: GNU/Linux, ideally Ubuntu 16.04 LTS, 18.04 LTS , Advanced network configuration, TCP/IP, routing, firewalling, load balancing, SSL termination , Experience with configuration management and orchestration systems, ideally Ansible , Monitoring: Nagios, Check_MK , Web server / reverse-proxy administration: Apache, Nginx, HAProxy , Continuous integration: Jenkins , Working knowledge git, GitHub , Shell scripting: bash, python Desired Skills: , Experience with Cloud Computing platforms (AWS, DigitalOcean) and virtualization (KVM) , Docker, docker-compose , Database administration: PostgreSQL, MongoDB , Data collection systems: Graylog, Prometheus, Grafana , Exposure to node.js Bonus skills: , Experience with blockchain technology, e.g. Bitcoin, Ethereum , Notable open-source code contributions , Startup experience
Applied Blockchain - Node.js Software Developer

Node.js Software Developer

Applied Blockchain Porto, Vila Real District, Portugal

Applied Blockchain is an innovative applications development company, focusing on distributed ledger technology and smart contracts. Based in London at Level39 Fintech hub in Canary Wharf, Applied Blockchain has an expert team of blockchain developers that have been building cutting-edge solutions for disruptive startups and corporate clients in banking and finance, e-payments, energy trading, aviation, telecommunications and social impact sectors. We are building a new generation of decentralised applications, working through some of the most interesting problems in this field such as KYC, identity management, transactions anonymity, encryption and data security. What you’ll be doing: Develop cutting edge software solutions for startups and corporate clients , Engage with clients to understand their product vision and design proof-of-concept and production grade products , Develop smart contracts on solidity , Liaise with frontend developers to build APIs for web and mobile , Write automated tests for smart contracts and server side code , Design and build large scale, high volume systems Required skills & experience: , 3+ years of backend development experience , 1+ years of Node.js , Experience in writing automated tests , Experience with API design and implementation , Experience with SQL and NoSql Databases (MySQL/Postgres, Redis) , Good understanding of Linux , Git knowledge (feature branches, github flow) Additional desirable experience: , Knowledge of ES6+/ES2015+ (new features, specifically: Promises, Async/Await and Generators) , Experience in API development and best practices (testing, documenting, versioning, monitoring) , Testing frameworks (Jest, Mocha/Chai/Should.js, Enzyme) , Docker experience (Docker Compose, Docker Swarm, Kubernetes) , Cloud computing platforms: Azure, AWS (user roles / network configuration / VM deployment) , Experience with EC2 APIs (S3, creating and configuring networks and VMs programmatically) , Experience in React , Blockchain knowledge – Bitcoin: bitcoin core software and rpc api, bitcoin js libraries, block explorer apis, op-return and timestamping. Ethereum: web3.js, setting up and running geth/parity nodes, solidity smart contracts, truffle.js , HTML and CSS
Stronghold - Front End Developer

Front End Developer

Stronghold San Francisco, California, United States of America

We are looking for a front end developer who is passionate about beautiful design and flawless implementation. You will be on a team who is building Stellar’s first alt coin anchor and global distributed exchange. You are excited about working with the latest collaborative technologies that include GitHub, Zenhub and Slack. You will be contributing to our codebase that will be used by people around the world. You live and breathe HTML/CSS/REACT.JS and have experience with managing ReactJS state (e.g. flux/redux). You have several years experience building front-end architecture for scale and performance. You like leveraging the power of frameworks and pre-processors but are not reliant on them. You thrive on collaborating with back-end engineers and designers but aren’t afraid to figure out the APIs for yourself. Bonus if you have worked with financial services, transactional, or similar codebases. Highly motivated to break into the Silicon Valley technology scene.
ConsenSys - Blockchain/Smart Contract Developer

Blockchain/Smart Contract Developer

ConsenSys London, Ontario, Canada

ConsenSys is the world’s largest blockchain venture production studio focused on developing cutting edge applications across all major industry sectors, investing in disruptive startups, and consulting global organizations / governments on decentralized technologies powered by Ethereum. Our mission is to use these solutions to power the emerging economic, social, and political operating systems of the planet. Our developers envision a world where blockchain and decentralized technologies play a pivotal role in transforming society. At ConsenSys Enterprise, we have been delivering blockchain software solutions to major global institutions for the past two years. As consultants, we work on-site with our clients to ensure we’re delivering the best possible solution. Our Lead Developer plays an important role in leading these projects to success. Responsibilities and Duties You will be responsible for the development of Solidity smart contracts. , Create tests to accompany produced code. , Write code with security and resiliency in mind. , Contribute to and work within Agile and DevOps frameworks. , Work in partnership with Web Services and User Interface developers. , Develop in alignment with overall architecture design. , Assist in incident and problem resolution as appropriate. Skills and Competencies , Understanding of Blockchain technology, especially Ethereum. , Experience of developing Ethereum smart contracts written in Solidity. , Experience of working in Agile projects with highly automated DevOps. , Experience of test driven development. , Experience of developing highly secure and resilient code. , Experience of collaborating with User Interface developers. , Experience of incident and problem resolution in production environments. , Interest in blockchain and enthusiasm for working in a space full of unknown unknowns, pivoting as needed, and being comfortable with not knowing the end state is a must. , Teamwork, flexibility, initiative, communication and organisation competencies are required. , Banking technology experience is an advantage but not essential. , Experience of full-stack development, especially with Angular and Node, is an advantage.
OTC Exchange Network - Blockchain Engineer

Blockchain Engineer

OTC Exchange Network Fremont, California, United States of America

OTC Exchange Network (“OTCXN”) is looking for the best and brightest who can be both fantastic team players and individual contributors to join our family. We want rock-stars without rock-star attitudes, newbies who aren’t afraid to take charge, people who dream big and can share a path to their vision, but most importantly, we want balanced people. Why Join OTCXN *You will be working with a team that will have a profound impact at the crossroads of blockchain and capital markets infrastructure. Building world-class disruptive technologies requires vision, persistence, innovation, and a deep belief that nothing is impossible. We are looking for smart people who are not risk adverse and want to build something that will be universally recognized as a world first. We aspire to provide a working environment, culture and leadership team that foster continuous improvement on a daily basis, offering transparency, ownership and integrity. Join our proven and successful management team in executing one of the most ambitious global projects in the blockchain space. *Does this sound like you? You have a strong passion for blockchain and cryptocurrencies. , You have a strong desire to do something that has never been done before but still solve real problems for the largest markets in the world. , You want to deliver a real product with a real revenue model. , You want to make a difference and don't want to be just another cog in the wheel. , You are very open to learning from others and when given the opportunity, always willing to jump in and give it your all. , You're the type of person that genuinely prefers to help out where others are weak and you're also always open to accepting help with your own weaknesses. You understand no one is perfect. Required Qualifications , At least 5 years of hands-on professional experience in core Java. , Hands-on experience with developing on at least one backend blockchain codebase, whether proprietary (e.g., Chain) or open source (e.g., Hyperledger, Corda) - not just building apps on top. , Strong understanding of the cryptographic principles and data dependencies underpinning blockchain technologies. , Experience and understanding of major consensus protocols, asymmetric encryption, Merkle trees, hash functions, key-value database , Experience and understanding of transaction scripting and smart contracts, especially Bitcoin style conditionalized transactions , Understanding of key areas of Blockchain research including data privacy, confidential transactions, side chains and pegging, sharding, lightning, and other scaling methodologies , Strong sense of ownership, passion to build quality products for massive scale in collaborative, agile environment and excitement to learn Preferred Additional Qualifications , A degree in Computer Science / Mathematics or equivalent work experience in a field utilizing the same subject matter. , 3+ years of professional C/C++ experience. , 5+ years of development experience developing production grade, multi-threaded, enterprise client/server software using Java stack. , Experience with extending core Blockchain functionality, such as changes to Bitcoin or Ethereum VM. , Experience contributing to the architecture, design, and implementation of Blockchain technologies like Chain, Corda and Hyperledger. · Understanding of microservices architecture. , Recognized expertise in blockchain applications as evidenced by industry participation, publications and/or awards. , Detailed and verifiable understanding of blockchain architectures including detailed knowledge of how various blockchain platforms differ. , Experience with various P2P communication protocols. , Experience in building distributed databases, networking protocols, or large-scale transaction systems. , Experience developing large scale, highly available distributed systems and protocol design. , Strong knowledge of data structures, algorithms, operating systems, and distributed systems fundamentals. , Strong understanding of databases, NoSQL systems, storage and distributed persistence technologies. , Experience with some of the following: concurrency and synchronization, common IPC/RPC methods and patterns, queuing patterns and pipeline design, messaging systems and patterns, virtual memory management. What You’ll Be Doing , Work closely with company leadership to define roadmap and extend an existing custom blockchain implementation in Java. , Write high caliber code on a daily basis to satisfy time sensitive production product development as well as R&D projects. , Collaborate with CTO, blockchain engineers and math wizards and undertake R&D projects to create novel hybrid solutions to solve problems while maintaining extreme performance requirements without trading off guarantees blockchain provides. , Help develop blockchain product specs. , Collaboratively define blockchain systems architecture and best practices. , Document best practices and act as a knowledgeable resource for blockchain engineering and problem-solving. Bonus Points For: , Sense of humor , Published Blockchain-related research , Published cryptography research , Experience or genuine interest in trading and exchanges , Experience in P2P networking , A Master’s in Computer Science / Mathematics or equivalent work experience in a field utilizing the same Benefits The following generous benefits package is provided to all employees: , Competitive salary , Stock options , Medical, dental, and vision insurance , Flexible PTO , Paid holidays , Bonus program , Free snacks
ConsenSys - uPort Product Lead for Platform

uPort Product Lead for Platform

ConsenSys Brooklyn, New York, United States of America

uPort is putting the user at the center of Web 3.0, building a new identity system that gives each of us control of our own data and empowers us to use it in new and exciting ways. Our platform will let consumers and businesses transact with privacy and security, create more valuable and trusting relationships, and coordinate in more effective ways. The team is currently ~25 accomplished, results-oriented, and collaborative individuals from all around the world. We bring a wide assortment of past experiences and perspectives. We come together based on a shared belief in the power of decentralized technologies and a dedication to creating a more secure, more convenient, more flexible, and more valuable digital world — built on open and empowering uPort identities. To achieve this mission, we are seeking a product leader to oversee our growing technology platform. Our tech stack includes ethereum smart contracts, infrastructure integrations, libraries, mobile apps, web apps, micro-services, APIs and more. The decentralized identity system we are aiming to build requires even more, so as we grow we'll look to community/open source development models and partnerships. This position will drive strategy around this model, mature our product development capabilities, and help both our internal team and external development community build this vision. Work with growth and technical teams to develop product strategy, business cases, and a roadmap that achieves our aggressive product goals , Collaborate closely with software development teams to understand and develop product requirements in line with our roadmap , Develop staffing, resource management, and workflow plans for a diverse group of developers and designers, most of whom work remotely , Lead a culture of constant testing, user-feedback, and analysis to iterate on products and plans , Constantly evaluate and mitigate project risks and test critical assumptions , Facilitate cross-team decision making (and measurement), balancing priorities in a constantly changing environment , Effectively communicate strategy, plans, progress and impact to various parties , Monitor, evaluate and proactively plan for competitors' product development and growth , Manage stable, frequent and well-communicated release schedule of uPort products , Represent uPort and ConsenSys globally, at meetings with members, and at conferences ABOUT YOU , 5+ years Product Management experience, ideally on platforms spanning mobile, web, libraries, and infrastructure , Experience coaching, motivating, and giving feedback to a large team of developers , Experienced executer of fast-paced Agile processes , Thrive in a fast-paced environment where being self-directed and resilient are a requirement , Led multi-functional teams in past roles , Effective communicator through writing and visuals , Technical background , Strong interpersonal skills and ability to work with constantly evolving, decentralized, diverse teams to get things done efficiently , You'll work from North America, South America, Africa, or Europe Bonus points for: , Experience building with an open-source community , Experience building developer tools , Experience scaling a company and product , Experience with platform or multi-sided marketplace business models , Experience with digital identity , Experience helping launch a new product category , Interest in blockchain or Ethereum
Circle - Engineering Manager - Tx Core

Engineering Manager - Tx Core

Circle Boston, Massachusetts, United States of America

Circle is a global internet finance company, built on blockchain technology, powered by crypto assets, and dedicated to helping people everywhere create and share value. We’ve already made sending money around the world free and easy using blockchain technology with Circle Pay. With Circle Invest, we’re expanding our offerings with a cryptocurrency investment product, enabling anyone to buy and sell crypto assets. Through Circle Trade, we’re market makers for the top crypto coins and offer OTC trading services. In March 2018, Circle acquired Poloniex, one of the world's leading token marketplaces. As a senior member of the platform organization, you will coach the engineers responsible for crypto-currency and fiat payment systems, trading infrastructure and a range of back-office applications What you'll work on - Empower the engineering team to achieve a high level of technical productivity and quality - Recruit outstanding engineers, in collaboration with Circle's recruiting team - Partner with product managers to ensure the platform teams' contributions align with product release schedules - Help engineers grow in their own career paths, learning new technologies and tackling increasingly challenging projects What you'll bring to Circle - Experience mentoring new managers in building productive engineering teams - Excellent communication skills, able to listen to and share ideas, effectively present concepts and work with remote teams - Technical Depth. You are deeply technical, and use your technical expertise to constantly raise the bar - Experience with designing, building and deploying secure, scalable services in the cloud - Results-oriented focus, encouraging managers to set and track goals for themselves and their teams - Able to coordinate the development of cross-team features between engineering teams, product managers and our technical operations team - Champion best practices and seek improvements to our agile processes - An interest in making an impact to the way money moves between people globally Nice to have - Experience developing software in Java, Python or JavaScript - Experience with REST APIs and SQL Databases - Experience with payment gateways or real-time trading systems - Interest in crypto-currency and blockchain technology
Blockchain - Site Reliability Engineer / DevOps

Site Reliability Engineer / DevOps

Blockchain London, England, United Kingdom

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for Site Reliability Engineers to join our engineering team as we tackle some some of the most interesting problems in the crypto space, like how do we securely scale a distributed financial platform that touches millions of people a day. Site Reliability Engineering (SRE) and DevOps, is an engineering discipline that combines software and systems engineering to build and run large-scale, distributed, fault-tolerant systems. SRE ensures that Blockchain’s services are reliable and available meeting our users' and the business's needs, and delivers a fast rate of improvement while keeping an ever-watchful eye on capacity and performance. At Blockchain, SRE is also a mindset and a set of engineering approaches to running better production systems—we build our own creative engineering solutions to operations problems. SREs are responsible for the big picture of how our systems are designed for operability, how they relate to each other, and we use a breadth of tools and approaches to solve a broad spectrum of problems. Practices such as limiting time spent on operational work, blameless postmortems and proactive identification of potential outages factor into iterative improvement that is key to both product quality and interesting and dynamic day-to-day work. The SRE/DevOps environment at Blockchain is a work in progress - we are looking for SREs to join the team. Are you ready for a challenge? WHAT YOU WILL DO: Optimize existing systems for scalability and build large-scale infrastructure. , Use a wide variety of open source technologies and tools. , Build continuous deployment/integration solutions. , Work on web-scale monitoring systems. , Work in close collaboration with developers. , Participate in an on-call rotation. WHAT YOU WILL NEED: , The foremost quality for this position or any position at Blockchain is integrity. , Strong background in Linux/Unix Administration. , Experience working with configuration management solutions. , You have a passion for learning new technologies. , You believe that communication/collaboration is one of the most important points in SRE culture. , Good knowledge of scripting languages (knowledge of Go / Java is a plus). , Good knowledge of best practices for web-scale infrastructure. , Good knowledge of container solutions. , Experience working with cloud solutions (AWS or GCP). , Bonus: Experience working with collocated deployments. , Bonus: Experience working with, or knowledge of, the bitcoin protocol. , Knowledge of continuous integration systems is a plus. COMPENSATION & PERKS: , Amazing and accessible office location in the heart of London (Shoreditch) and New York (SoHo). , Unlimited vacation policy; work hard and take time when you need it. , Catered team lunch every Monday, Wednesday, and Friday. , Apple equipment. , Full-time salary based on experience and meaningful equity in an industry-leading company. , London Benefits: Private Medical Insurance (BUPA), Dental, Pension, Life, Short Term & Long Term Disability.
Messari - Software Engineer - Infrastructure

Software Engineer - Infrastructure

Messari New York City, New York, United States of America

The cryptoasset industry is growing rapidly, but filtering quality projects from scams poses a challenge for developers and investors alike. Are you looking for opportunities in the industry, but concerned about the hype? Do you want to be help people parse signals from noise, ship product, and actually BUIDL? Messari is a New York based startup backed by some of the industry’s top investors. Our mission is to promote transparency and smarter decision-making within this emerging ecosystem by building a free, global, and open-source data library for cryptoasset projects. We are seeking a talented engineer to help scale our core data intake and output systems. You will build tools that ingest high volumes of real-time information, including blockchain data. You will design flexible APIs and data feeds for a variety of users. You will be involved in all stages of product development, from idea generation to execution, shipping, and iteration. You must be comfortable working in a fast-paced startup environment, and looking for an entrepreneurial role where you can take ownership of your work with little hand-holding. Skills and Experience: Ability to write clean and effective code, regardless of framework , Experience with database design , Experience with server scaling , Experience working with real-time data , Ability to balance fast release cycles with a long-term focus , Experience with git and github , Passionate about the cryptoasset ecosystem and open-source technologies Preferred qualifications: ** , DevOps experience , Go , Distributed systems background Our world-class database will be relied on by major industry participants, investors of all stripes, and the broader public, including governments and regulators. To build this, we are constructing our engineering team around these **core values: , Elegant systems often, but not always, lead to happy customers , Modularize, refactor, and document , Flexibility is key; code only what's necessary , Write readable code , Ship early, get feedback often As an early member of our team you will be working directly alongside our senior developers, and fit is critically important to us. If you align well with these values, and are looking for the opportunity to challenge yourself, we would love to hear from you! Messari is an Equal Employment Opportunity employer that proudly pursues and hires a diverse workforce. Messari does not make hiring or employment decisions on the basis of race, color, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age, military or veteran status, or any other basis protected by applicable local, state, or federal laws. Messari also strictly prohibits harassment of any kind.