pqc cryptography engineer.

PQC & Cryptography Engineer

Location: 100% Remote (UK-based, with occasional fully expenses-paid office visits)

Role Type: Contract

Client: Leading UK High Street Bank

The Role

Quantum computing is rapidly changing the cybersecurity landscape, and we need an experienced Cryptography Engineer to help future-proof our enterprise infrastructure.

You'll be working directly on our Post-Quantum Readiness & Crypto-Agility journey-mapping business impacts, running risk assessments, and delivering hands-on Proofs of Concept (PoCs) to move critical banking systems to a quantum-safe state.

What You'll Be Doing

• Build Migration Strategies: Map business impacts and design migration roadmaps to transition away from legacy algorithms.
• Assess Quantum Risk: Perform Q-Day risk assessments across internal systems and customer-facing channels.
• Deliver Hands-On PoCs: Create proofs-of-concept demonstrating practical, quantum-safe migrations.
• Prioritize Remediation: Establish a framework to sequence fixes for our most critical assets.
• Cryptographic Inventory: Work across IT and business units to build an up-to-date data inventory.

What We're Looking For

• Core Cryptography: Deep grasp of symmetric/asymmetric algorithms, PKI, and key management.
• Quantum Threat Awareness: Solid understanding of quantum threat models like Shor's and Grover's algorithms.
• Crypto-Agility & Standards: Practical experience designing crypto-agile systems aligned with NIST, FIPS, or ISO 27001 standards.
• Tooling & Scripting: Proficiency in Python (preferred), Bash, or PowerShell.

Nice to Have:

Exposure to PQC algorithms (e.g., CRYSTALS-Kyber, Dilithium), hands-on experience with HSMs or platforms like Venafi/OpenSSL, and a background in financial services.

Interested? Please apply ASAP or drop a message or send your CV to View email address on randstad.com to get ahead of the submission deadline!

Randstad Technologies is acting as an Employment Business in relation to this vacancy.