Lead Cryptographer

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Career Renew

πŸ“France

Job highlights

Summary

The job is for a Lead Cryptographer who will work closely with top management and a talented team to develop secure cryptographic protocols, particularly in multi-party computation, threshold cryptography, and post-quantum cryptography. The role involves research, innovation, design, implementation, testing, collaboration, documentation, analysis, communication, training, and staying updated on advancements.

Requirements

  • PhD in Computer Science, Cryptography, or a related technical field
  • 5+ years of cryptography experience, preferably in fintech
  • Hands-on experience with cryptographic protocols
  • Knowledge of MPC, zero-knowledge proofs, zk-STARKs, zk-SNARKs, bulletproofs, elliptic curve cryptography, and prominent signature schemes
  • Experience publishing in peer-reviewed conferences and journals

Responsibilities

  • Research, innovate and develop cryptographic protocols that align with customer requirements and business objectives
  • Designing and implementing cryptographic solutions applied to blockchain services (e.g., keys, wallets, signatures)
  • Driving innovation in cryptographic methods to improve product security
  • Testing cryptographic theories based on product security needs and developing proof-of-concepts for MPC, threshold cryptography, zero-knowledge proofs and more
  • Leading the development of post-quantum threshold signature protocols
  • Collaborating with engineering teams to integrate cryptographic solutions into libraries and applications
  • Presenting cryptographic research and findings through articles and blog posts and collaborating with external partners on cryptographic projects
  • Authoring and updating internal and external documentation
  • Identifying weaknesses and designing robust security systems to mitigate new risks
  • Analyzing security protocols, reporting threats, and developing countermeasures
  • Ensuring the security and integrity of cryptographic protocols across our product lines
  • Conducting security assessments and vulnerability analysis of cryptographic implementations
  • Handling communications with independent researchers and designing strategies to mitigate reported vulnerabilities
  • Training staff on cryptography and secure system development
  • Staying updated on cryptography and blockchain technology advancements
This job is filled or no longer available