Senior ZK Smart Contract Engineer

About the Role

We are looking for a Senior ZK Smart Contract Engineer to lead the development of zero-knowledge proof systems and privacy-preserving smart contracts. You will work on cutting-edge cryptographic protocols and help shape the future of private blockchain infrastructure.

Responsibilities

• Design and implement zero-knowledge circuits using Circom, Noir, or similar frameworks
• Develop and audit smart contracts for ZK-based protocols
• Optimize proof generation and verification for production systems
• Collaborate with cryptography researchers on novel protocol designs
• Lead code reviews and mentor junior engineers
• Contribute to open-source ZK tooling and documentation

Requirements

• 5+ years of smart contract development experience (Solidity, Rust, or similar)
• 2+ years working with zero-knowledge proof systems
• Deep understanding of elliptic curve cryptography and zkSNARKs/zkSTARKs
• Experience with circuit design and constraint systems
• Strong background in computer science fundamentals
• Excellent problem-solving and communication skills

Nice to Have

• Experience with formal verification tools
• Contributions to major ZK projects (Zcash, Aztec, StarkNet, etc.)
• Published research in cryptography or blockchain
• Experience with Rust and low-level systems programming