Zero Knowledge/Cryptography Auditor

3 weeks agoJunior Anywhere Remote Full Time Cybersecurity Jobs by Nethermind

Skills

Halo2 Bulletproof Noir Protocols Security Auditing Aztec Ethereum Zero-Knowledge Circom Groth16 Plonk Zkvm Debugging Cryptography Zkdsl Rust Bulletproofs Reverse Engineering Privacy Cairo

About the Role

You will evaluate the correctness, soundness, and security of cryptographic protocols and zero-knowledge systems. You will analyze ZK programs for correctness and privacy leakage, review production code for vulnerabilities, and help teams remediate issues. You will design, implement, and maintain internal security tooling, stay current with emerging ZK constructions and attack vectors, and participate in client meetings to explain findings and recommend best practices. You will contribute research notes and knowledge-sharing materials and may produce public-facing content.

Requirements

1+ year of experience performing security reviews related to cryptography, zero-knowledge systems, or closely related domains
Bachelor’s or Master’s degree in Computer Science, Cyber Security, Mathematics, or a related field
Solid theoretical understanding of cryptographic primitives and protocols
Practical experience implementing and/or auditing cryptographic systems
Strong proficiency in Rust
Hands-on experience with at least one ZK proof system (e.g. Groth16, PLONK, Halo2, Bulletproofs)
Proven usage of at least one zkDSL (e.g. Circom, Noir, Halo2, Cairo)
Understanding of zkVM architectures and proof pipelines
Ability to identify common cryptographic and ZK vulnerabilities
Strong debugging skills; experience with reverse engineering is a plus
Clear written and verbal communication skills

Responsibilities

Perform security reviews and audits of cryptographic and zero-knowledge systems, including primitives, protocols, zkDSL circuits, and zkVM guest programs
Analyze correctness, soundness, completeness, and potential privacy leakage in ZK programs
Review production code used in Ethereum and Aztec ecosystems and help teams identify and remediate vulnerabilities
Maintain and improve internal blockchain security tooling
Design and implement new security tools for cryptography and ZK systems
Stay up to date with emerging ZK constructions, proof systems, and attack vectors
Participate in client meetings to explain findings, recommend best practices, and support remediation efforts
Contribute to internal knowledge sharing, research notes, and public-facing content

Benefits

Remote-first work with the ability to work from anywhere
Opportunities to attend global industry events and conferences