Post Quantum Cryptography Engineer (Hybrid)

POST QUANTUM CRYPTOGRAPHY ENGINEER (HYBRID LISBON)

Portuguese company hires for hybrid position

Location: LisbonPortugal

Only candidates already basedin Portugal will be considered

Work Model: Hybrid(Lisbon-based)

Language Requirements:Native Portuguese Fluent English

Seniority: Senior (5 years)

Sector: Banking

Instructions: Please send yourCV in English and make sure to include all skills and experience that match therequirements of the opportunity. This will significantly increase your chancesof success

About the Opportunity

A leading organization in the cybersecurity and digitaltransformation space is seeking a highly skilled Post-QuantumCryptography (PQC) Engineer to support the transition to quantum-safesecurity architectures.

This role is ideal for professionals passionate about advancedcryptography secure communications and future-proof encryptionstandards. You will work on high-impact remediation programs implementingnext-generation cryptographic solutions aligned with global standards.

Your Mission

As a PQC Engineer you will design and implement Post-Quantumand hybrid cryptographic integrations across enterprise systems.

You will:

• Lead remediation workstreams focused on quantum-safe transitions
• Develop and maintain reusable PQC libraries
• Ensure compliance with NIST ETSI and ISO cryptographic standards
• Support migration of legacy cryptographic systems to quantum-resistant architectures
• Contribute to secure application architecture and encryption strategy

Priority Technical Requirements

• In-depth knowledge of Cryptography especially:
• Post-Quantum Cryptography (PQC)
• Hybrid cryptography
• Algorithms such as Kyber Dilithium SPHINCS Falcon
• Strong experience in cryptographic application implementation
• Advanced programming skills in C (including test development)
• Advanced knowledge of:
• TLS handshakes
• X.509 certificates
• SSH encryption
• Experience with software architecture
• Strong Linux expertise (including command-line operations)

Preferred Qualifications

• Experience with:
• Docker
• Java
• Python
• Go
• Rust
• DevOps practices
• Technical documentation writing
• MSc in Computer Engineering or similar field
• Professional experience in Software Engineering ideally within Cybersecurity/Cryptography
• Experience with:
• Cryptographic application architecture
• Migration to quantum-safe environments
• Implementing encryption aligned with standards (e.g. NIST)
• Cryptographic libraries such as OpenSSL and liboqs

Why Apply

This is a unique opportunity to work at the forefront of quantum-resilientsecurity contributing to enterprise-wide cryptographic modernization.

Youll join a high-level technical initiative focused onprotecting critical systems against future quantum threats combining research-gradecryptography with real-world enterprise implementation.

Keywords

Post-Quantum Cryptography PQC Quantum-Safe HybridCryptography Kyber Dilithium SPHINCS Falcon C TLS X.509 SSHEncryption Linux NIST Standards ETSI ISO Cryptographic Libraries OpenSSLliboqs Cybersecurity Secure Architecture Quantum Migration Lisbon HybridWork

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