BT Group

Security Software Services Specialist, PKI – Public Key Infrastructure

BT Group

full-time

Posted on:

Location Type: Hybrid

Location: BristolUnited Kingdom

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About the role

  • Designing and maintaining our core PKI services—the digital identity layer that keeps BT secure.
  • Making sure we meet key security standards (like NIST and ISO) and preparing for future risks such as quantum‑safe cryptography.
  • Managing certificate lifecycles, fixing issues quickly, and improving automation to keep services resilient.
  • Giving clear, practical advice to engineers, architects, and security teams.
  • Supporting audits and assurance activity to maintain trust in our systems.
  • Working in a security‑cleared environment, handling sensitive systems responsibly.
  • Helping shape the future of BT’s cryptographic strategy.

Requirements

  • Hands on experience managing enterprise PKI environments, including certificate authorities, HSMs, and associated tooling.
  • Familiarity with NIST and ISO frameworks, and awareness of quantum‑safe cryptography guidelines such as those from the EIC.
  • The ability to translate complex security topics into clear, actionable guidance for technical and non‑technical stakeholders.
  • A proactive approach to problem‑solving, with strong analytical skills and the ability to assess risk in a security‑critical environment.
  • An understanding of security‑cleared working environments and the ability to meet the requirements needed to obtain clearance (if not already held).
  • A collaborative mindset, committed to inclusive ways of working and contributing positively to a specialist security community.
Benefits
  • An annual bonus of up to 10% (company & personal performance dependent)
  • BT Pension scheme; minimum 5% employee contribution, BT contribution 10%
  • Life Assurance
  • Exclusive colleague discounts on our latest and greatest BT broadband packages
  • 50% off EE mobile pay monthly or SIM only plans and 50% discount for friends and family on EE SIM only plans
  • BT TV, including TNT Sport and the NOW Entertainment membership, and 25% off NOW Sport, Cinema and Kids
  • Great support for working parents including pay whilst on maternity, adoptive, and paternity leave
  • Option to join the Healthcare Cash Plan or other benefits such as dental insurance, gym memberships etc.
  • 25 days annual leave (not including bank holidays), increasing with service
  • Volunteering days so you can give back to your local community
  • Brand new electric vehicle salary sacrifice arrangement, known as ‘My EV’

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
PKI managementcertificate authoritiesHSMsquantum-safe cryptographyautomationsecurity standardsrisk assessmentaudit supportcertificate lifecycle managementsecurity incident resolution
Soft skills
clear communicationproblem-solvinganalytical skillscollaborationadvisory skillsproactive mindsetinclusive workingstakeholder engagementguidance translationtrust building