Zero Knowledge/Cryptography Auditor

Nethermind

Zero Knowledge/Cryptography Auditor evaluating security and soundness of cryptographic protocols at Nethermind. Collaborating with teams to enhance blockchain security systems globally.

Posted 5/4/2026full-timeRemote • 🌎 Anywhere in the WorldJuniorWebsite

Tech Stack

Tools & technologies

Cyber SecurityRust

About the role

Key responsibilities & impact

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
Collaborate with teammates to maintain and improve Nethermind’s 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 (optionally) public-facing content

Requirements

What you’ll need

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
Strong foundation in cryptography, including:
Solid theoretical understanding of cryptographic primitives and protocols
Practical experience implementing and/or auditing cryptographic systems
Strong proficiency in Rust (experience auditing Rust codebases is a strong plus)
Deep understanding of Zero-Knowledge systems, including:
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, etc.)
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

Benefits

Comp & perks

Flexible Work Options: Remote-first culture with the opportunity to work from anywhere.
Global and Diverse Workforce: You'll work with people from various backgrounds and cultures.
Learning and Development: You'll work on innovative, challenging projects and have access to experts and mentors to enhance your skills.
Career Growth: Access to training, mentorship, and opportunities to contribute to open-source initiatives.
Global Events and Conferences: Opportunities to attend the industry events.
Collaborative and Innovative Culture: We foster teamwork and encourage new ideas.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

cryptographyzero-knowledge systemsRustZK proof systemszkDSLdebuggingreverse engineeringcryptographic primitivescryptographic protocolsvulnerability assessment

Soft Skills

communicationcollaborationknowledge sharingproblem-solvinganalytical thinking

Certifications

Bachelor’s degree in Computer ScienceMaster’s degree in Computer ScienceBachelor’s degree in Cyber SecurityMaster’s degree in Cyber SecurityBachelor’s degree in MathematicsMaster’s degree in Mathematics