Avance Consulting

Platform engineer in banking

In short

This is a lead platform engineering role at a UK financial institution, leading a small team through go-live and operation of a new banking platform built on Kubernetes in AWS. The scope covers platform reliability, security, vendor connectivity, architecture governance and CI/CD standards in a regulated environment. It demands hands-on AWS, Kubernetes/GitOps and Terraform expertise at scale, plus strong security (PKI, mTLS, OAuth2/OIDC) and prior technical-lead experience. Based onsite in London.

Description
A UK financial institution has built a new banking platform on Kubernetes in AWS. You will lead the small platform engineering team that takes it through go-live and then runs it: you own the platform's reliability, security and engineering standards, and act as the link between the programme, central platform and security teams, and third-party vendors.
Responsibilities
•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 lifecycle 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.
Requirements
•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.
Nice to have
•Financial services or payments experience
•Message-broker and observability tooling experience
•Experience with SaaS banking vendors
Conditions
No conditions stated in the posting.

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