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Blockchain Developer

(Full-time, Paris, Remote possible)


Massa Labs develops the first blockchain that is both truly decentralized and scaled. After launching a testnet attracting 3,000 nodes and raising €5m in a private sale round this summer, the team is now growing to prepare for the mainnet launch expected in 2022, as well as future challenges.

Massa uses a novel parallel blockchain protocol designed over 3 years of research, that was shown to scale to thousands of operations per second while supporting thousands of nodes. The core blockchain software is written in Rust, and the smart contract engine features several innovations such as autonomous and asynchronous smart contracts, on-chain website hosting, and a Wasm bytecode allowing to write smart contracts in many languages.

We are doing stuff no one else is doing, and are looking for people who are not afraid to challenge common ideas and practices in this space.

At Massa Labs you will participate in the development of critical parts of the core protocol. The short to medium-term tasks will revolve around the smart-contract engine, the p2p network and the consensus algorithm.


  • Good knowledge of Rust or another strongly typed language (C++, Go, …),
  • Interest in decentralized systems.
  • Experience in the following areas is appreciated:

  • Bitcoin, Ethereum or other blockchain technologies,
  • Distributed systems,
  • State-of-the-art P2P networking research and technologies,
  • Cryptography,
  • Smart contract design and implementation.
  • Benefits:

  • Full-time position with competitive salary plus token bonuses,
  • Health and life insurance,
  • 5 weeks paid time off + holidays + sick days,
  • 50% of public transportation fees paid by the employer,
  • Restaurant vouchers,
  • Team and conference travels.
  • Useful links:

  • Massa Website
  • Testnet Explorer
  • Github
  • Technical Paper
  • Apply