Security Architecture Consultant (Cryptography & Quantum Security)

Paconsulting; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Job summary

PA Consulting is pursuing a seasoned Digital Trust & Cyber Security professional to shape cryptography and security architecture advisory across global teams. You will work with leading experts on PQC readiness, migration planning and cryptographic agility, helping major government and commercial clients embed secure-by-design principles into their technology roadmaps.

Join a collaborative, learning-focused culture with hybrid working (2 days on site per week) and opportunities to influence a

Qualifications

• Security architecture experience with practical delivery impact.
• Applied cryptography, PKI, key management or related cybersecurity expertise.
• Ability to communicate complex topics to senior stakeholders.
• Experience producing assessments, roadmaps and technical recommendations.
• Strong consulting and client engagement skills.

Responsibilities

• Security architecture and secure-by-design activities.
• Cryptography and PKI advisory work.
• PQC readiness assessments and migration planning.
• Cryptographic discovery and inventory activities.
• 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.

Skills

Security architecture

Cryptography & PKI

Stakeholder engagement

Consulting

Communication

Education

CISSP

SABSA

CCSP

Cloud security certifications

Cryptography-related certifications

Job description

Why consider joining our Digital Trust & Cyber Security community?

PA has one of the leading applied quantum capabilities in consulting, combining expertise across quantum sensing, quantum computing, and quantum-safe security. Working closely with Jacobs and our wider global teams, we help government and commercial clients explore, adopt and secure emerging quantum technologies.

As organisations increasingly prepare for the transition to quantum-safe cryptography, we are helping clients understand their exposure to quantum risk, develop migration strategies and embed cryptographic agility into their technology landscapes.

Unlike many roles focused solely on technology delivery, this position offers the opportunity to help shape a rapidly emerging market. You will work alongside leading experts in cybersecurity, quantum technologies and critical infrastructure while helping some of the world's largest organisations prepare for a future where cryptographic trust must evolve.

Grow a flexible and unique career within a trust-based, inclusive environment that values excellence, innovation, and curiosity. You have the option to progress with us on a technical career track. No need to go onto the Partner career track if this doesn't align with what you want to do.

Hybrid working - our approach is to be in the office or on client site a minimum of 2 days per week.

Deepen your expertise through our culture of learning and growth, with access to technical and non-technical training, professional certifications, and opportunities to contribute to our growing quantum and cryptography community.

Join other experts within our supportive and collaborative tech community through knowledge-sharing and peer-level support, coaching and mentoring.

Deepen your expertise through our culture of learning and growth - you'll have budget to take courses (technical and non-technical training), plus gain certifications.

What you can expect

• Security architecture and secure-by-design activities.
• Cryptography and PKI advisory work.
• PQC readiness assessments and migration planning.
• Cryptographic discovery and inventory activities.
• 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.

Essential 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.

Desirable experience

• Experience with cloud security architecture.
• Enterprise identity and access management.
• DevSecOps and code signing.
• Network security.
• Operational technology or critical infrastructure environments.
• Security transformation programmes.
• Experience with PQC standards, migration planning or cryptographic agility initiatives.

Qualifications

• CISSP
• SABSA
• CCSP
• Cloud security certifications
• Security architecture certifications
• Cryptography-related certifications

Please be aware that some of our UK roles at PA Consulting require a UK security clearance.

All PA people are required to undergo background checks and to achieve the Baseline Personnel Security Standard however, some UK roles also require higher levels of National Security Vetting, where applicants must have at least 5 years of continuous residency in the UK.

We therefore ask that you only apply if you meet the residency requirements (i.e. you are a British citizen or have been resident in the UK for the past 5 years), as this is the prerequisite for a security clearance.