Information Security

Security Architecture Consultant (Cryptography & Quantum Security)

PA Consulting

London · Greater London · United Kingdom

Overview

In this role, you help clients navigate the transition to quantum-safe cryptography and embed cryptographic agility across their landscapes. You’ll work with experts in cybersecurity, quantum tech, and critical infrastructure to assess exposure, plan migrations, and shape secure, future-ready architectures. You’ll contribute to a growing quantum and cryptography community within a trusted, inclusive environment. This is a hands-on, advisory role that combines technology delivery with market-shaping impact.

Pay / Benefits
  • Private healthcare for you and family
  • 25 days annual leave (+ 0.5 day Christmas Eve)
  • Generous pension
  • Annual performance-based bonus
  • PA share ownership
  • Cycle to work and tax-efficient benefits
Responsibilities
  • Security architecture and secure-by-design activities
  • Cryptography and PKI advisory work
  • PQC readiness assessments and migration planning
  • Cryptographic discovery and inventory
  • Cloud, enterprise and technology transformation programmes
  • Client workshops and stakeholder engagement
  • Development of PQC propositions, methods and thought leadership
  • Support for bids and business development activity
Key requirements
  • Security architecture experience
  • Applied cryptography, PKI, key management or related cybersecurity experience
  • Understanding of public key cryptography, certificates and trust services
  • Experience producing assessments, roadmaps and technical recommendations
  • Strong consulting, communication and stakeholder engagement skills
  • Ability to communicate complex technical topics to senior business and technology stakeholders
  • Strong communication
  • Stakeholder management
  • Consulting mindset
  • Security architecture
  • Applied cryptography
  • PKI and key management

Reference: WJ-747_31167529 · Posted 01 Nov 2026, 12:05 PM

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