Welcome to a unique platform, Jobs in Crypto, powered by Cointelegraph
with a list of jobs opportunities inside the blockchain, fintech and crypto industries.
AirSwap - Security Token Product Manager

Security Token Product Manager

AirSwap - Brooklyn, New York, United States of America

As Ethereum tokens take over the world, a new blockchain economy needs decentralized trading to thrive. AirSwap was designed from the ground up to provide privacy, security, and choice on a global, peer-to-peer trading network without intermediaries or trading fees. AirSwap is a Joint Venture with ConsenSys based in Williamsburg, Brooklyn.

Learn more about our mission here:

Who is AirSwap

We are a team of engineers and financial technology experts. We have come together with a shared mission to build a global, decentralized trading network that makes it easy to buy and sell Ethereum-based tokens in a peer-to-peer fashion. Our advisors include legendary investor Michael Novogratz, prolific venture capitalist Bill Tai, and Joe Lubin, Co-Founder of Ethereum & ConsenSys. We at AirSwap truly aim to build the engine of the new token economy.

The Role

You will be responsible for turning product visions into tangible results, pulling together product requirements from external parties, regulatory considerations, and internal stakeholders, and collaborating with the cross-functional teams to prioritize them.


  • Define a product vision and strategy with internal and external stakeholders, promoting product perspectives within various teams
  • Create, maintain, and communicate product roadmaps
  • Propose solutions or alternative routes for product development as needed
  • Collaborate with a cross-functional team of engineering, design, product marketing, legal, and business development to build great products
  • Prioritize to ensure goals are met on time and on budget

Required Skills and Experiences

  • 5+ years of experience in software delivery
  • Proficiency in Agile/Scrum methodologies
  • Experience with regulatory technology and working in highly regulated environments
  • BA/BS in Computer Science, Electrical Engineering, Mathematics, Statistics, or a related technical field, or equivalent practical experience preferred
  • Strong communication & presentation skills for both technical and non-technical audiences
  • Enthusiastic about Ethereum and blockchain technology; Experience in blockchain is a plus
  • Self-starter; comfortable operating in a fast-paced environment with self direction
  • Team player and highly collaborative

Why AirSwap

Building and maintaining a world class team is our top priority, as reaching our goals starts with the individuals within AirSwap. We spend an extraordinary amount of energy in not only finding the best in class, but in validating their decision to work with us. As such, we invest heavily on a culture that encourages a balanced healthy and happy life--this means top of the line in-office snacks, frequent team events, Equinox memberships, and more.

... - 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

Are you hiring?

Crunchbase - Senior Product Analyst

Senior Product Analyst

Crunchbase - San Francisco, California, United States of America

Crunchbase is the go-to destination to find businesses to sell to, market to, research, work for, invest in, and buy from. We’re capitalizing on this to become the single place to find actionable information on the world’s businesses.

Crunchbase is looking for a Senior Product Analyst to work within Product and partner with Engineering, Marketing, Design, and Product Management to uncover product usage insights to drive better product roadmap decisions, and improved UX design. This role is a great mix of technical, product, and data responsibilities that offers the opportunity to be a leader within a data-driven software company.

Product at Crunchbase

The Crunchbase Product team is responsible for owning and executing the vision of the Crunchbase platform, and the creation of new products that provide our users with various mechanisms to access our data.

As a Crunchbase Senior Product Analyst, you will:

• Define, lead, and execute Crunchbase product analytics strategy

• Conduct exploratory data analysis to identify product gaps, test hypotheses, and size opportunities to inform product roadmap

• Work with cross-functional teams to understand their data needs and facilitate reporting as well as improve the efficiency and effectiveness of analytics throughout the company

• Partner with Executives to define reporting and dashboard requirements for use in managing day to day operations more efficiently

• Work with Product, Marketing, and Engineering teams to define metrics and monitor performance through dashboards and ad hoc analysis

• Partner closely with Engineering to ensure proper instrumentation of new products and tests including capture of new data, and transfer into data warehouse

• Implement and manage internal and 3rd party metrics to drive product and marketing decisions

• Build self-service systems to enable others in the organization to perform analysis and leverage data to make business decisions

• Analyze and present product usage behavior data and KPIs to product teams and executives


• 4+ years work experience in analyzing large, multi-dimensional datasets, and synthesizing data insights into actionable recommendations

• Master’s or Bachelor’s degree in a quantitative discipline, e.g. Mathematics, Statistics, Operation Research, Computer Science

• Strong experience in SQL, data warehousing, data modeling, dashboarding, and reporting

• Solid understanding of statistical methods and modeling

• Ability to write efficient and optimized queries against large databases

• Proficient with at least one scripting language (Python, Ruby, or R)

• Experience working with analytics tools such as Google Analytics, Heap Analytics, Chartmogul, Baremetrics, Periscope, Tableau, Mode Analytics, Looker, or similar

• Comfortable with basic HTML & CSS

• Strong communication skills -- ability to work cross-functionally with different teams and communicate technical content to general audiences

• Experience working in a fast-paced work environment with Engineering and Product teams is a plus

What Crunchbase offers:

• Competitive salary and equity

• A team of creative, transparent entrepreneurs driven to accomplish our mission

• Daily catered lunches and plenty of snacks

• Fitness reimbursement (to work off the catered lunches)

• Unlimited Paid Time Off (PTO) -- we don't track vacation days

• Incredible medical, vision and dental benefits for employees and their families

• 401(k) and Roth plans, and free annual financial adviser check-in

• Free One Medical Group membership for employees and their families

• Monthly commuting stipend

• Free Lyft rides anywhere in the Bay Area after late nights at the office

• Prime location in the Financial District of SF, near BART and Muni stops

• Company and team offsites, retreats, events and happy hours

Circle - Lead Software Engineer

Lead Software Engineer

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 key member of our product engineering team, you'll coach and develop a team that is responsible for building a best-in-class suite of web apps while still being hands on.

What you'd do:

Lead the agile development process for our Web team

, Work closely with product management and our internal stakeholders to build a realistic, successful roadmap

, Write readable code while helping grow and mentor the Web team

, Decompose business requirements into actionable stories

What you'll bring to Circle:

, Deep experience developing software in modern Javascript frameworks (React.js)

, Experience with HTML, CSS & ES6

, Track record of creating delightful web products

, Experience mentoring & developing a team of developers

, History of scaling teams efficiently

, Excellent communication skills, able to listen to and share ideas, effectively present concepts and work with remote teams

, Experience with designing, building and deploying secure, scalable services in the cloud

, Results-oriented focus, encouraging team members to set and track goals for themselves

, 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 cryptocurrency, social payments and blockchain technology

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.


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


, 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.

CryptoKitties - Database Engineer

Database Engineer

CryptoKitties - Vancouver, British Columbia, Canada

Get CryptoKitties’ databases purring like a kitten through query performance optimizations.

You’ll accomplish this by reducing the number and severity of failure incidents and managing secure database migrations. Together, we will tackle the challenge of maintaining a high-throughput PostgreSQL database up-to-date with the Ethereum blockchain, a medium where data integrity is not always reliable. Should we purrvail, we will unite thousands of new CryptoKitties with their happily-ever-afters (new owners).

Both full-time and contract options are available.

What we’ll accomplish together:

Set up and manage high-throughput Postgres clusters which serve thousands of users all around the globe

, Fine-tune performance settings and tooling to optimize server resources

, Review and set up effective monitoring policies for the database server as well as its queries

, Implement schemas, procedures, and indexes fulfilling project needs

, Advise on queries and transactions, monitoring performance in day-to-day operations

Does this describe you?

, Experience with Amazon RDS and Multi-AZ deployments

, Experience scaling applications in general

, Experience with proprietary solutions such as DinamoDB or BigQuery

, Expertise in other types of data storage: columnar, key-value or graph databases

, Familiarity with Python

, In-depth SQL knowledge, including query optimization and performance monitoring

, Previously optimized Postgres’ configuration and parameters

, Previously set up Postgres clusters

How to apply:

, Please include your resume and/or LinkedIn profile.

, Please highlight past relevant experience.

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


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


, 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
ConsenSys - Senior Full Stack Developer (Alignment)

Senior Full Stack Developer (Alignment)

ConsenSys - Brooklyn, New York, United States of America

ConsenSys is a venture production studio and the leading technology firm in blockchain globally. We deliver products, solutions and platforms built using blockchain technology to transform how business is done in complex network of buyers, suppliers and consumers.

About this role:

ConsenSys is building an institutional-grade platform for creating, servicing, and trading syndicated loans and other financial products. We aim to utilize blockchain technology to revolutionize the syndicated loans market by reducing settlement times, friction, and costs across the value chain, while simultaneously improving transparency and traceability. Your role will be to lead the development of this platform.


As an early team member, you will have a large say in the types of programming languages and frameworks used to build the platform

, Lead the development of the platform and own end-to-end delivery of functionality across the stack

, Continually evaluate and improve the platform and dev workflow as it scales

, Operate in a directed manner with minimal input

, Actively participate in the design, development, and review of the code base


, 4+ years engineering experience with a proven history of shipping code

, Experience leading developer teams

, Experience with Javascript, Java, or Python preferred

, Experience with docker, kubernetes, and AWS preferred

, Experience implementing and maintaining high-throughput systems

, Experience working with blockchain technology (e.g. wallets, multi-sigs, smart contracts)

, Relevant degree(s) in Computer Science or related fields

, Willingness to learn new tools

Bonus Points:

, Experience working in Financial Services (large scale platforms and programs a plus)

, Demonstrated interest and knowledge of blockchain technologies and cryptocurrencies

, Devops experience - developing microservices, containerization (Docker), SOA

, Experience with reputation systems

Here are some of the perks of being part of a unique organization like ConsenSys:

, The forefront of a revolution. At ConsenSys we fundamentally believe that a next generation of technologies presents the opportunity to create a more just and equitable society.

, A dynamic startup environment. ConsenSys is a thought leader in the blockchain space and we are absorbing a significant portion of the mindshare. This is both exciting and challenging, as we learn to scale our organization while adhering to the principles of decentralization.

, Continuous learning. You’ll be constantly exposed to new languages, frameworks and ideas from your peers and as you work on different projects -- challenging you to stay at the top of your game.

, Deep technical challenges. This entire ecosystem is about 10 years old. Ethereum itself is still a toddler. There is much work to be done before these platforms can scale to the order of millions or billions of users. ConsenSys is building the technology platforms that can get us to those next thresholds of scale.

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?


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.


, 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.


, 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.

Ledger - Senior Software Engineer

Senior Software Engineer

Ledger - Paris, Aude, France

As part of its strong growth, Ledger – a technology leader in digital asset and crypto-security solutions – is looking for a Senior Software Engineer (backend). You will be responsible for developing and scaling a backend application to allow hundreds thousand people to process their transaction in the crypto-currency world.

Are you able to develop high performance solutions? Do you have experience in continuous integration? Join our team, one of the world’s leaders in one of the most innovative technology sectors!


Develop a technological stack to explore the contents of a blockchain (Bitcoin, Ethereum, Ripple, Monero …).

, Optimize the overall performance of the application.

, Audit our current technological stack.

, Conduct benchmarks to identify bottlenecks.

, Creation of the software architecture of the blockchain explorer.

, Develop blockchain abstraction technology to easily integrate new crypto-currencies.

, Set up monitoring for server applications to detect unexpected failures / behavior.

, Set up continuous integration to deploy / test the blockchain explorer.

Required profile

, Engineer profile with at least 5 years of experience in Java / Scala.

, Good knowledge of nix operating systems.

, Open source lover (90% of our code is available on Github)

, Experience with continuous integration solutions.

, Capable of self-training and monitoring of backend-oriented technologies.

, Having a strong interest in cryptocurrencies and wishing to work with blockchain technology.

, Knowledge of AWS solutions is appreciated.

Decentral - Angular Developer

Angular Developer

Decentral - Toronto, Ontario, Canada

We seek a Angular Developer to take us through the second phase of our journey. You will be pivotal in developing, implementing, and optimizing a new product Decentral is bringing to market. This product will be used by millions around the globe and we will be counting on you to launch brand new features, create really cool visual elements, work with backend APIs, all while keeping customer security top of mind.

To be successful, you will write great code and develop innovative solutions. We are looking for a Javascript expert for a new product launch later this year. You will work alongside our UX designers to turn vision into code. You will take pride in writing beautiful, commented Angular 5 and TypeScript. You know how to write tests and debug Javascript. As well, you will work with RESTful APIs and provide input to backend programmers about requirements for new APIs.

As part of the interview process, we will ask you to provide a portfolio to showcase your past work. We are excited for you to show your accomplishments and will use this to facilitate the communication during the interview.