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Firmware Engineer

Stockholm💼 Full-time🗓 2026-08-24 → 2026-09-26

Core

Develop, design, and test firmware features for hardware security products like YubiKey and YubiHSM, implementing cryptographic protocols and building libraries for higher-level applications.

Role type

Firmware Engineer (Hardware Security)

Builds

Firmware for hardware security tokens and HSMs, cryptographic libraries, and system integrations

Domain

Cybersecurity, Hardware Security, Cryptography

Deliverable

production ML models | product features | infrastructure

Required skills

Cryptography and security protocols, Embedded C programming, Microcontroller development, Linux development, Open source software integration

Preferred skills

Smart card technology, PKCS#11, Python, Git CLI

Technologies

C, Linux, Python, Git, PKCS#11

Responsibilities

Develop and test new firmware features for YubiKey and YubiHSM; Write libraries to expose features to applications; Develop integrations with existing systems

Seniority

Mid-level, hands-on IC

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