Senior Protocol Engineer

  • Up to $250k
  • ID: 3038
  • Posted: 10.06.24

Blockchain Protocol Engineer (Ethereum/Cosmos) – Fully Remote

Plexus are on the hunt for a highly skilled and motivated Protocol Engineer with a strong background in the Ethereum protocol, including in-depth knowledge of rollups and other Ethereum scaling solutions. The ideal candidate will possess a keen understanding of blockchain technology’s intricacies, specifically Ethereum & Cosmos ecosystem and have a passion for solving complex technical challenges in scaling, performance and security.

Key Responsibilities:

  • Design, implement, and maintain protocols and features related to Ethereum scaling solutions.
  • Contribute to the development and optimisation of the blockchain infrastructure.
  • Collaborate with cross-functional teams to integrate scaling solutions.
  • Stay abreast of the latest developments in Ethereum, rollups and other scaling technologies.
  • Assist in the design and development of smart contracts and dApps with scalability and efficiency in mind.
  • Provide expertise in the transition to and maintenance of Proof of Stake (PoS) chains, contributing insights and improvements.


  • Proficiency in Golang (in context to Ethereum development) – 4+ years.
  • Proven experience with Ethereum protocol (or similar) development and familiarity with its ecosystem.
  • Strong understanding of Ethereum scaling solutions, including rollups and sidechains.
  • Excellent problem-solving skills and ability to think critically and innovatively.

Nice to have:

  • Cosmos SDK and Tendermint experience.
  • Experience with blockchain development tools and frameworks (e.g., Truffle, Hardhat, web3.js, ethers.js).
  • Understanding of Proof of Stake (PoS) chains and consensus mechanisms.
  • Strong communication and collaboration skills, with the ability to work effectively in a remote team environment.

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