Senior Platform Engineer

About the roleWe're looking for a Senior Platform Engineer to help us scale the multi-account AWS platforms that now power Lendable products across the UK, US and Mexico, supporting the hundreds of engineers shipping on top of them.You'll be joining a Platform Engineering team of eight, reporting to our Platform Engineering Manager. This is a senior, hands-on role in a production environment where minutes of downtime translate directly into customer impact. You'll take ownership of key parts of our platform, driving technical direction and making pragmatic trade-offs between reliability, cost, and developer experience. We build with self-service in mind, creating paved roads, abstractions, and guardrails that enable product teams to move fast without needing to understand the underlying complexity. Your responsibilities will include Design and manage core AWS infrastructure via Terraform and Terragrunt Build and operate robust Kubernetes, GitOps and observability tooling Shape how engineering teams ship to production, progressive rollouts, canary deploys and fast, safe rollbacks Bake security into the SDLC, policy-as-code, OIDC-based cloud access, secret scanning and pre-merge controls, working closely with our Security team Partner with engineering teams on infrastructure, database and deployment best practices Provide and continuously improve CI/CD and developer tooling Share an on-call rotation with the team, supported by the observability and tooling you help build We make use of AI-assisted tooling (e.g. code generation, debugging, and platform operations). You're either already comfortable working this way, or excited to adopt it. Your experience Production experience running Kubernetes at scale, not just deploying to it, but operating it. Proven ability to improve developer experience and platform adoption across teams Deep cloud experience, ideally on AWS. Strong infrastructure-as-code skills with Terraform (Terragrunt a bonus). Hands-on experience with a modern observability stack including Datadog, Prometheus, Grafana. Modern CI/CD experience: GitHub Actions, ArgoCD, Flux. Comfort scripting in at least one of the following: TypeScript/Node, Python or Go. A solid grounding in Linux, networking, and security fundamentals.We don't expect every box to be ticked. If most of this sounds like you, we'd like to hear from you. What success looks like in this role Product teams can ship to production independently using self-service platform capabilities, without needing direct support from Platform Engineering Platform standards (infrastructure, deployment, security) are widely adopted across teams Changes to the platform measurably improve developer experience and delivery speed Incidents are reduced over time through better system design, observability, and guardrails Infrastructure is scalable, cost-efficient, and secure by default, with clear trade-offs made where needed Our tech stack Cloud & compute: AWS (multi-account, multi-region), EKS with Karpenter and KEDA IaC: Terraform, Terragrunt, Helm CI/CD & GitOps: GitHub Actions, ArgoCD, Argo Rollouts Observability: Datadog, Prometheus, Grafana Security: HashiCorp Vault, Kyverno, Checkov, Aikido Databases: PostgreSQL and MySQL Developer platform: Backstage AI tooling: Claude Code, Cursor, Augment Tooling we build ourselves: TypeScript Interview process Intro call with Talent Team Hiring Manager call - 30 minutes Tech interview - Solution Design - 2 hours Culture Interview with our VP of Technology - 45 minutes The opportunity to scale up one of the world's most successful fintech companies Best-in-class compensation, including equity You can work from home every Monday and Friday if you wish - on the other days we all come together IRL to be together, build and exchange ideas Our in-house chefs prepare fresh, healthy lunches in the office every Tuesday-Thursday We care for our Lendies' well-being both physically and mentally, so we offer coverage when it comes to private health insurance We're an equal opportunity employer and are keen to make Lendable the most inclusive and open workspace in London