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Nethermind

Builders & researchers with expertise in Ethereum, Protocol Engineering, L2, DeFi & Smart Contracts Security & Auditing

Zero Knowledge/Cryptography Auditor

AuditorAuditorFull TimeRemoteJuniorTeam 201-500Since 2017H1B No SponsorCompany SiteLinkedIn

Location

Worldwide

Posted

114 days ago

Salary

0

Seniority

Junior

Bachelor Degree1 yr expExperience acceptedEnglishCyber SecurityRust

Job Description

Zero Knowledge/Cryptography Auditor

Nethermind

• 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

Job 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
  • 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

  • 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.

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