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Yubico is a publicly traded global leader in identity security and creator of the YubiKey, the original hardware-backed passkey. The company operates with a cultural philosophy of "Speed with Integrity," pushing the boundaries of technology to secure the AI frontier and leading the transition to post-quantum cryptography.
As a Cryptography Engineer, you will be responsible for implementing, maintaining, and optimizing cryptographic algorithms and primitives that run on YubiKeys and YubiHSMs. This includes encryption, hashing, digital signatures, and key exchange mechanisms. You will follow research developments in both classical cryptographic algorithms (RSA, ECC) and Post Quantum Cryptography algorithms (ML-DSA, ML-KEM), ensuring Yubico's products remain at the forefront of security standards.
Key responsibilities include:
- Implement and optimize cryptographic algorithms for hardware security keys and HSMs
- Monitor and evaluate emerging cryptographic research, particularly in post-quantum cryptography
- Write correct, efficient, and secure code with disciplined engineering practices
- Address side-channel vulnerabilities including electromagnetic, power, and timing analysis
Required qualifications:
- Strong ability to follow and understand cryptographic research
- Deep understanding of classical symmetric and asymmetric cryptography
- Knowledge of post-quantum cryptography (PQC)
- Understanding of side-channel attacks (EM, power, timing) and mitigation strategies
- Disciplined approach to writing correct, highly efficient code
Preferred qualifications include low-level programming experience (C and Assembly), embedded systems architecture knowledge, experience optimizing algorithms for resource-constrained environments, familiarity with fault injection attacks, and hands-on lab equipment experience (oscilloscopes, logic analyzers).
Yubico fosters a thriving builder ecosystem through its Developer Program, offering open-source repositories, libraries, and SDKs. The company collaborates closely with technical partners including Google, Microsoft, Amazon, and OpenAI to shape a safer digital world.
