Cryptography Engineer

Meet Yubico: the creator of the most secure passkeys and leading provider of hardware authentication security keys. Our company’s mission is to make secure login easy and available for everyone. Yubico was founded in 2007 by Stina and Jakob Ehrensvard, and is public on Nasdaq Stockholm Main Market: YUBICO. Our customers include Fortune 500 companies, hundreds of government agencies and millions of individuals in over 160 countries that rely on Yubico technology to secure access to computers, online services and mobile apps. Our global customer base includes organizations of varying sizes, from large corporations such as Google, Amazon, Microsoft and Hyatt, to companies like Dyson. We are a global company with a strong company culture and employees located in over 14 countries. Yubico’s headquarters are based in Stockholm, Sweden, Santa Clara, CA and Singapore. Aligned with our mission to make the internet more secure for everyone, Yubico donates YubiKeys to organizations helping at-risk individuals through our philanthropic initiative, Secure it Forward.

Tasks & 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.)

Basic 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

Preferred Qualifications

• Low level programming experience (C and Assembly)
• Experience with embedded architectures
• Ability to adapt and tune algorithms on resource constrained environments
• Knowledge around fault injection attacks
• Hands-on experience with lab equipment such as oscilloscopes, logic analyzers and similar

We are an equal opportunity employer, we value diversity and uphold an inclusive environment where all people feel that they are equally respected and valued. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity or expression, age, marital status, religion, national origin, disability, protected Veteran status or any other characteristic protected by law. We'd love to learn about what you can add to our diverse team. We are an E-Verify Participating Employer.

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