Join a major global banking transformation programme redefining Identity andamp; Access Management at enterprise scale.We''re looking for a hands-on Developer with strong experience in IAM, API development, and event-driven cloud architectures to help build next-generation identity solutions across a complex global environment.Location: LondonHybrid Working: Just 2 days per week in the officeContract: 12 Months (Inside IR 35)Industry: Global Banking/FinTech TransformationWhat you''ll be working on:* Identity orchestration andamp; life cycle automation* Secure REST API andamp; microservices development* Pub/Sub and event-driven workflows* Google Cloud Platform (GCP) cloud-native solutions* Terraform, CI/CD andamp; Infrastructure as Code* Authentication andamp; federation technologies (OAuth2, OIDC, JWT, SAML)Tech Stack:Python/Go/Java/Node.js | GCP | Pub/Sub | Cloud Run | Terraform | Auth0/Okta | Kubernetes | API SecurityWhat we''re looking for:* Strong IAM and API engineering background* Experience with cloud-native application development* Knowledge of modern authentication and identity standards* Hands-on experience with event-driven architectures* Strong troubleshooting and problem-solving skillsExcellent opportunity to join a high-profile long-term IAM transformation programme within a leading international bank.Apply now or reach out directly for a confidential discussion.GCS is acting as an Employment Business in relation to this vacancy.