Cryptographic Systems Expert in United States at Jobgether

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Cryptographic Systems Expert based in the United States.

This role focuses on advancing the evaluation and understanding of post-quantum cryptographic systems in the context of emerging quantum computing threats.
You will play a critical part in assessing the resilience of classical and next-generation cryptographic algorithms against quantum attacks.
The position involves designing rigorous evaluation frameworks, including question–answer datasets, to test deep technical comprehension of cryptographic concepts.
You will analyze real-world cryptographic scenarios and guide the identification of quantum-safe alternatives.
The work directly contributes to strengthening future-ready security standards in high-assurance environments.
You will collaborate in a highly technical, research-driven setting where precision, analytical depth, and forward-thinking security design are essential.
This is a remote role requiring U.S. citizenship due to the sensitive nature of the work supporting federal use cases.

• Design and develop advanced question-and-answer sets to evaluate understanding of post-quantum cryptography concepts and principles.
• Assess the quantum resilience of classical and post-quantum cryptographic algorithms, identifying potential vulnerabilities and limitations.
• Recommend and evaluate quantum-safe cryptographic alternatives across different security scenarios and use cases.
• Analyze the impact of quantum computing advancements on current cryptographic standards, protocols, and infrastructures.
• Evaluate reasoning ability around future threat models, attack vectors, and trade-offs in post-quantum cryptographic implementations.

• Advanced degree in Mathematics, Computer Science, Cryptography, or a closely related field.
• 5+ years of applied cryptography experience, particularly involving public-key infrastructure and theoretical security analysis.
• Strong understanding of quantum computing fundamentals and their implications for cryptographic systems.
• Hands-on familiarity with cryptographic libraries and tools such as OpenSSL, Libsodium, or equivalents.
• Proficiency in programming languages used in cryptography, such as Python, C/C++, or Java.
• Deep knowledge of post-quantum cryptographic approaches, including lattice-based, hash-based, code-based, and multivariate schemes.
• Familiarity with cryptographic standards and ongoing standardization efforts (e.g., NIST PQC initiatives).
• Strong analytical thinking, problem-solving ability, and clear technical communication skills.
• U.S. citizenship (or lawful permanent residency where applicable federal constraints allow).

• Remote work flexibility.
• Opportunity to work on cutting-edge post-quantum cryptography research and evaluation.
• Exposure to advanced federal-level cybersecurity challenges.
• Collaborative, highly technical environment focused on innovation and precision.
• Competitive compensation aligned with senior-level cryptography expertise.
• Potential for long-term engagement in mission-critical security programs.