Zero Knowledge/Cryptography Auditor in Netherlands at Jobgether

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Zero Knowledge/Cryptography Auditor in Netherlands .

This role offers the opportunity to work at the forefront of blockchain security and cryptographic research, focusing on the evaluation and auditing of zero-knowledge systems that power next-generation decentralized applications. You will be responsible for analyzing the correctness, soundness, and security of complex cryptographic protocols across cutting-edge ecosystems. The position combines deep theoretical cryptography with hands-on engineering, requiring close collaboration with researchers, protocol engineers, and clients. You will contribute to strengthening the security of high-impact blockchain systems while helping design and improve advanced auditing tools. The environment is highly technical, research-driven, and fast-evolving, with constant exposure to new cryptographic innovations. This is a unique opportunity to directly influence the security and reliability of foundational Web3 infrastructure.

• Conduct in-depth security audits of cryptographic protocols, zero-knowledge systems, zkDSL circuits, and zkVM guest programs
• Evaluate correctness, soundness, completeness, and privacy guarantees in ZK-based implementations
• Review production-level code across Ethereum, Layer 2, and other blockchain ecosystems to identify vulnerabilities and propose fixes
• Collaborate with security engineers and researchers to improve internal auditing methodologies and tooling
• Design and develop new tools for analyzing and securing cryptographic and zero-knowledge systems
• Stay up to date with emerging ZK frameworks, proof systems, and cryptographic attack vectors
• Participate in client discussions to present findings, recommend mitigations, and support remediation efforts
• Contribute to internal research documentation and knowledge sharing initiatives

• 1+ year of experience in security auditing, cryptography, or zero-knowledge systems
• Degree in Computer Science, Cybersecurity, Mathematics, or a related technical field
• Strong understanding of cryptographic principles, including primitives and protocol design
• Practical experience implementing or auditing cryptographic systems
• Proficiency in Rust, with experience reviewing Rust-based codebases considered a strong advantage
• Hands-on experience with at least one zero-knowledge proof system (e.g., Groth16, PLONK, Halo2, Bulletproofs)
• Experience using at least one zkDSL (e.g., Circom, Noir, Cairo, Halo2, or similar)
• Solid understanding of zkVM architectures and proof generation pipelines
• Strong analytical and debugging skills, with reverse engineering experience considered a plus
• Excellent written and verbal communication skills for technical reporting and client interaction
• Familiarity with advanced cryptographic primitives or prior cybersecurity experience is a plus

• Fully remote, global-first work environment
• Opportunity to work on cutting-edge cryptography and blockchain security systems
• Exposure to leading experts in zero-knowledge and decentralized technologies
• Strong learning and professional development opportunities through mentorship and training
• Participation in global blockchain events and industry conferences
• Collaborative, research-driven, and innovation-focused culture
• Career growth opportunities in a rapidly evolving technical domain
• Inclusive and diverse international team environment