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Cryptography Engineer

Yubico· Engineering & Product – Core Product Development
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Hybrid (Stockholm)Full-timePosted 11mo ago

About the role

Design, implement, and optimize cryptographic algorithms for hardware security products, with a focus on classical and Post Quantum Cryptography.

Responsibilities

  • Implement, maintain and optimize cryptographic algorithms and primitives (e.g. encryption, hashing, digital signatures, key exchanges) that run on YubiKeys and YubiHSMs
  • Follow research about classical algorithms (RSA, ECC, etc.), as well as Post Quantum Cryptography algorithms (ML-DSA, ML-KEM, etc.)

Qualifications

  • Ability to follow research in cryptography
  • Good understanding of classical (a)symmetric cryptography and PQC
  • Knowledge of side-channel attacks (EM, power and timing analysis etc.) and mitigations against them
  • Disciplined approach in writing correct and highly efficient code

Skills

Required:Cryptography AlgorithmsSide-Channel Attack Mitigation
Nice to have:Low Level ProgrammingEmbedded ArchitecturesLab Equipment Handling
Last updated Feb 6, 2026. Interested? Apply on the company site.

About Yubico

YubiKey Strong Two Factor Authentication

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