Cairo Developer

Nethermind | The easiest solutions to the hardest problems in blockchain


Nethermind has a world class team of builders and researchers with expertise in Ethereum, protocol engineering, layer 2 scaling, decentralized finance, smart contracts development and enterprise blockchain. We provide technology, R&D and consulting services for blockchain and DeFi businesses. The Nethermind team actively contributes to Ethereum core development and supports many Ethereum projects to help further develop the ecosystem. Working with amazing partners such as StarkWare, POA, EWF, Baseline, Provide and many more, Nethermind is building the future of blockchain and DeFi.


London, England, United Kingdom

Job Description

What are we all about?

We are a team of world class builders and researchers with expertise across several domains: Ethereum Protocol Engineering, Layer-2, Decentralized Finance (DeFi), Miner Extractable Value (MEV), Smart Contract Development, Security Auditing and Formal Verification.

Working to solve some of the most challenging problems in the blockchain space, we frequently collaborate with renowned companies, such as Ethereum Foundation, StarkWare, Flashbots, xDai, Open Zeppelin, Forta Protocol, Energy Web, POA Network and many more.

We actively contribute to Ethereum core development, EIP’s and network upgrades together with the Ethereum Foundation, and other client teams.

Today, there are 100+ of us distributed across the world.

Everyone knows that solving scaling is one of the most critical topics in Ethereum today. To that end, the Nubia team at Nethermind has been working with StarkWare on Warp, a Solidity/Vyper -> Cairo transpiler. StarkNet is StarkWare’s decentralized, permissionless STARK-powered L2 ZK-Rollup that supports general computation over Ethereum, and Cairo is its native language. Cairo is a great language, but many existing protocols cannot switch to a new language due to time/money/talent constraints. To help solve the lack of talent, we are hiring for software engineers interested in Cairo.

At the Nubia team, you’ll get to work with some of the most talented people in the Ethereum ecosystem (StarkWare), work at the bleeding edge of L2 technology, help solve one of Ethereum’s most significant problems (scaling). All while learning things you probably wouldn’t discover anywhere else.

What skills do you bring?


  • Experience writing production in any low-level programming language
  • Interest in Ethereum or blockchain in general, either on a commercial or personal basis is a must
  • Experience deploying and interacting with smart contacts on Ethereum, either on a commercial or personal basis is a must

Nice to have:

  • Knowledge of the EVM
  • Understanding of how the Ethereum protocol works
  • Knowledge of Solidity/Vyper and their related tools
  • High-level understanding of ZK-SNARKS & STARKS

Perks and benefits:

  • Fully remote
  • Flexible working hours
  • Plus equity

Join us!

We are always on the lookout for talent!

If what we do excites you, but none of the current open positions match your background, we encourage you to send us your CV at [email protected]

Join our growing and active community of 1000+ developers on our Discord server:

In the meantime, keep up to date on what we are working on by following us on our social channels: 
Apply for job

To apply for this job please visit


Add New Company