Security Software Services Specialist

Public Key Infrastructure (PKI) is central to how we protect our organisation, our people, and the millions of customers who rely on our services. In this role, you will strengthen BT’s security posture by ensuring our cryptographic foundations remain robust, resilient, and future‑ready. You’ll join a specialist security function that underpins trust across BT’s digital estate, supporting critical services ranging from BACS payment systems to government and utility infrastructure. Your expertise will help maintain reliable, secure authentication across these environments, ensuring systems can verify identity and prevent impersonation or malicious activity. As security standards evolve and cyber threats become more sophisticated — particularly with the emergence of quantum technologies — your work will play a vital role in preparing BT for the next generation of cryptographic challenges, keeping our platforms secure, compliant, and ahead of emerging risks.