API Engineer - Envoy

API Engineer - Envoy Location: Glasgow - 5 days onsite Contract: 6 months Rate: £425 per day IR35: Inside IR35 Experience: Banking/Financial Services essential We are urgently looking for an experienced API Engineer with strong hands-on Envoy Proxy/Envoy Gateway experience to join a major banking technology programme in Glasgow. This is a specialist API engineering role, so candidates must have proven practical experience with Envoy rather than simply general API, Kubernetes or DevOps exposure. Key Responsibilities Design, configure and support Envoy Proxy/Envoy Gateway within a cloud-native banking environment. Configure and manage API routing, services, upstreams and gateway policies. Troubleshoot complex API routing, connectivity and Proxy issues. Implement API authentication and authorisation at gateway level. Support secure and highly available API gateway architectures. Work with engineering and platform teams on Kubernetes-based API infrastructure. Manage API gateway configuration through controlled, automated deployment processes. Contribute to CI/CD, infrastructure-as-code and cloud-native engineering practices. Essential Experience Strong hands-on Envoy Proxy or Envoy Gateway experience - essential Strong Java or Golang development experience Strong REST API experience OpenAPI Specification (OAS) experience API gateway authentication and authorisation OAuth 2.0/OIDC JWT validation mTLS Kubernetes/cloud-native environments Terraform CI/CD pipelines Git-based ..... full job details .....