Cloud Security Specialist

AI Security Lead: Identity & Resilience

PAYE: £467.91/day
Umbrella: £621.00/day
Location: London (2 Days in the office, 3 days remote)
Contract: 6 months

We are looking for a heavy-hitting Identity Expert to join our Financial Services team. You'll be at the intersection of Agentic AI and Zero Trust, building the secure backbone for the next generation of AWS Bedrock deployments.

The Baseline

• FinServ Pro: You know the UK landscape inside out-DORA, FCA Operational Resilience, and the EU AI Act aren't just buzzwords to you; they're your toolkit.
• Bedrock Builder: Hands-on experience with AWS Bedrock (Agents, Knowledge Bases, Guardrails, and the full model life cycle).
• AI/ML Foundations: Deep understanding of FMs, RAG, non-deterministic agents, and complex tool-use.
• Secure AI: Expert-level knowledge of OWASP LLM Top 10 and Agentic AI threats. Familiarity with NIST AI RMF is a massive plus!

Your Mission: Identity & Access Specialist

As our Identity Lead, you'll be the gatekeeper for our autonomous agents. You will:

• Lead the Charge: Drive our SPIFFE/SPIRE rollout, integrating seamlessly with AWS (IAM Roles Anywhere, STS Tags).
• Lockdown Credentials: Implement sender-constrained tokens (PoP) to kill credential theft in its tracks.
• Harden Flows: Secure OBO (On-Behalf-Of) flows with rigorous claim validation and JIT provisioning for non-human identities.
• Threat Hunter: Enhance SOC playbooks to detect sophisticated agent threats like Confused Deputy and Federation Hijack.
• Regulatory Guru: Ensure 100% traceability from agent actions back to a human identity, keeping us airtight for EU AI Act Articles 12 & 14.

Randstad Technologies is acting as an Employment Business in relation to this vacancy.