PQC Technical Lead

Role summary

What you'll do

• Lead PQC and cryptographic agility delivery planning, with migration plans aligned to NCSC milestones and business priorities.
• Discover cryptographic dependencies across applications, infrastructure, cloud, networks, PKI, and third-party services; identify quantum-vulnerable technologies and prioritise remediation by risk.
• Create reusable migration patterns, reference architectures, and implementation playbooks, including approaches for certificates, TLS, authentication, signatures, VPNs, and key management.
• Assess vendor readiness and challenge supplier roadmaps with the TPRM team.
• Support engineering through design reviews, pilots, and technical decisions; produce executive updates, investment recommendations, and risk assessments.
• Explain complex technical matters to senior stakeholders and governance forums.

What you'll bring

• Extensive experience as a senior security architect in a large enterprise; an engineering background is likely.
• Proven delivery of complex security or infrastructure transformation programmes.
• Strong understanding of PKI and certificate management, TLS and cryptographic protocols, key management and HSMs, identity and authentication platforms, and cloud and hybrid infrastructure.
• Experience developing enterprise roadmaps and implementation strategies; strong stakeholder management, communication, and documentation skills.
• Ability to influence multiple technology teams without direct authority.

Highly desirable experience

• Previous PQC or crypto-agility programme experience is highly desirable.
• Financial services or critical national infrastructure experience is highly desirable.
• The source begins to mention experience with large application portfolios, but the description is cut off.

About LSEG