Post-Quantum Security Engineer — Practical Crypto Architect

Us3 Consulting; Amsterdam; On-site; EUR 60,000 - 90,000; Full time

Job summary

Us3 Consulting in Amsterdam is seeking a freelance Post-Quantum Cryptography Consultant to support security projects across Benelux and Europe.

You will apply quantum-resistant cryptography to real systems, secure protocols, key management and cryptographic libraries, collaborating with architects, developers and infrastructure teams to design, implement and test practical solutions. Applicants with hands-on crypto experience are encouraged even if post-quantum titles are not present.

Qualifications

• Hands-on cryptography experience with post-quantum algorithms.
• Experience applying quantum-resistant crypto to real systems.
• Ability to collaborate with security architects, developers and infrastructure teams.

Responsibilities

• Apply post-quantum cryptography to security products and enterprise environments.
• Secure protocols: TLS, VPNs, PKI, certificates or digital signatures.
• Manage keys, HSMs or cryptographic libraries.
• Security engineering, integration and testing
• Understand ML-KEM and ML-DSA standards and algorithms.

Skills

Post-quantum cryptography

Security engineering

TLS / PKI security

Key management

Cryptographic libraries

HSMs

Tools

HSMs

Job description

Us3 Consulting in Amsterdam is seeking a freelance Post-Quantum Cryptography Consultant to support security projects across Benelux and Europe.

You will apply quantum-resistant cryptography to real systems, secure protocols, key management and cryptographic libraries, collaborating with architects, developers and infrastructure teams to design, implement and test practical solutions. Applicants with hands-on crypto experience are encouraged even if post-quantum titles are not present.