Platform Engineering Lead/Platform Architect in London

Job Description

• *Lead and mentor* a small team of platform engineers; set priorities, review designs and PRs, hire and onboard.
• *Take the platform live:* own production readiness, DR testing, pen-test and vulnerability remediation.
• *Run the platform:* AWS, EKS, Terraform, GitOps, policy enforcement, messaging and observability, with runbooks and incident ownership.
• *Own vendor connectivity and security:* private and mTLS integrations, certificate life cycle and identity, working with vendor technical teams.
• *Own architecture decisions:* write and defend ADRs at architecture review boards.
• *Set CI/CD and promotion standards:* audited pipelines and release gates, agreed with central engineering.
• *Plan and report:* Jira backlog, status reporting, cost estimates; raise risks early.
• *Support delivery partners* onboarding new services onto the platform.

*Essential*

• Hands-on AWS, Kubernetes/GitOps and Terraform at scale, with team or technical-lead experience.
• Solid grounding in PKI, mTLS, OAuth2/OIDC, and network and edge security.
• Experience running production platforms, including DR and incident management.
• Experience writing architecture decisions and presenting them to governance boards.
• CI/CD expertise and a pragmatic approach to controls in a regulated setting.
• Clear communicator across security, architecture and vendor stakeholders.
• Familiarity with AI-assisted engineering.

*Desirable*

• Financial services or payments experience.
• Message-broker and observability tooling experience.