Protocol Engineer (Web3)

TL;DR

Protocol Engineer (Web3): Responsible for the design, implementation, and evolution of the zkSync protocol, including both L1 and L2 components. Focus on designing and implementing the zkSync smart contract platform and developing system contracts.

Company

hirify.global is responsible for the design, implementation, and evolution of the zkSync protocol.

What you will do

• Design and implement the zkSync smart contract platform (zk-friendly VM).
• Develop system contracts (Solidity, Yul) and server-side components for L1 and L2.
• Conduct independent research, design, prototype, and document solutions.
• Shape the protocol roadmap in collaboration with internal teams and external partners.
• Contribute to cross-functional discussions, ensuring secure and scalable protocol evolution.

Requirements

• 3–10 years in protocol, blockchain, or systems engineering depending on level.
• Hands-on experience with Solidity or Vyper.
• Strong understanding of blockchain/EVM protocols.
• Proficiency in strongly typed languages (C++, Scala, Go); Rust experience a plus.
• English: Fluent written and spoken English.

Nice to have

• Familiarity with Yul, Cast tools, Foundry etc.
• Knowledge of Merkle Trees and related data structures.
• Understanding of cryptography, high-load systems, or protocol design.

Culture & Benefits

• Ownership mindset with proven track record of delivering projects.
• Strong collaboration and communication skills.
• Passionate, curious, and motivated to make meaningful contributions.