Nethermind · 1 day ago
Zero Knowledge/Cryptography Auditor
United States
Full-time
Remote
Entry Level
1+ years expNethermind is a blockchain research and software engineering company focused on building high-performance infrastructure and security tooling across the Ethereum ecosystem. They are seeking a Zero Knowledge/Cryptography Auditor to evaluate cryptographic protocols and ZK systems, collaborate with security engineers, and engage with clients to enhance security measures.
RetailFinanceFinTechCrypto & Web3SoftwareBlockchainCryptocurrencyDeveloper APIsEthereumFinancial Services
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
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
Qualification
Required
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
Preferred
Multiple years of experience in traditional cybersecurity before moving into blockchain
Experience reviewing or implementing advanced cryptographic primitives such as: Threshold signatures, Fully Homomorphic Encryption (FHE), Anonymous credentials
Familiarity with or experience working on ZK rollups or L2s (e.g. Aztec or similar systems)
Publicly available audit reports, blog posts, or presentations on cryptography or ZK security
Experience working in client-facing security roles
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.
Company
Nethermind
The simplest solutions to the hardest problems in blockchain.
201-500 employees
Funding
Current Stage
Growth StageTotal Funding
$0.19M2020-04-28Angel· $0.09M
2020-01-28Grant· $0.05M
2018-08-17Grant· $0.05M
Leadership Team
Tomasz Kajetan Stanczak
Founder
Recent News
2025-10-31
2025-10-17
Company data provided by crunchbase