Core ZK Engineer - Linea

Details

We are seeking a skilled and passionate Core Zero-Knowledge (ZK) Engineer to join our team in building and implementing zero-knowledge protocols, circuits, and provers for a zk-EVM (Zero-Knowledge Ethereum Virtual Machine). You will help push the boundaries of blockchain scalability, computation delegation, and performance by crafting cutting-edge cryptographic solutions that power ZK rollups and other decentralized applications.

Responsibilities

• Help to refine the zk-EVM structure to ensure scalability, correctness, and Ethereum compatibility.
• Build and optimize ZK proving systems, ensuring efficient performance and reduced computational overhead.
• Collaborate with researchers and engineers to design and implement cutting-edge cryptographic protocols.
• Ensure security and correctness of all ZK implementations; rigorously test and audit circuits, protocols, and provers.
• Contribute to the development of supporting libraries and tooling to enhance ZK development.
• Stay up-to-date with advancements in cryptography, Ethereum's ecosystem, and zero-knowledge proofs.
• Participate in design decisions and code reviews for zk-EVM components.
• Work closely with product teams to ensure implementations meet functional and performance requirements of the zk-EVM.

Requirements

Technical Skills

• Deep understanding of cryptographic principles, SNARK protocols, polynomial commitments, lookup protocols and the underlying mathematical concepts.
• Hands-on experience designing and implementing ZK circuits and/or experience maintaining circuit-design tools.
• Familiarity with mathematical and cryptographic concepts used in ZK: finite fields, polynomials, hash functions, error-correcting codes.
• Strong programming skills in languages like Rust, C++, or Go; experience with Solidity is a plus.
• Familiarity with Ethereum, the EVM and Layer-2 scaling solutions.
• Experience optimizing complex computations on CPU, GPU, or FPGA.

General Skills

• Strong problem-solving skills and attention to detail, with focus on correctness, soundness and efficiency in ZK implementations.
• Ability to challenge own and peers' solutions.
• Ability to write clean, maintainable, and well-documented code.
• Experience working in a collaborative environment using Git and CI/CD pipelines.
• Experience with in-production code.

Preferred Qualifications

• Advanced degree in Mathematics, Computer Science, Cryptography, or related field.
• Published research or contributions to open-source zero-knowledge proof or cryptographic projects.
• Experience working on ZK projects or Layer-2 projects.
• Contributions to cryptographic libraries or tools.

Compensation

• US pay range (not including bonus, equity or other benefits): $168,000—$187,000 USD (for US-based candidates; final amount determined through interview process).

Benefits

• Competitive benefits package.
• Equity grant on joining.
• Recognition in the blockchain and Web3 ecosystem; strong career reference.
• Continuous learning & development (Consensys Advance Program, Coursera access).
• Unlimited vacation/holidays and company-wide "zero productivity" days.
• Flexible working arrangements and remote-first global team.

Other

• This is a global, remote-first role. Employment is subject to background checks (employment, education, criminal record) as a condition of hire.
• Consensys is an equal opportunity employer and encourages applicants from diverse backgrounds.