Java Developer - IAM/API

Duration: 8 months+

Java Developer - IAM/API Sheffield (1-2 days per month onsite) Inside IR35 We're supporting a leading financial services client in hiring a Java-focused Application Developer to build secure, scalable identity and access solutions within a modern cloud environment. This role centres on Java API development, identity orchestration, and event-driven architectures, working closely with security and engineering teams to deliver robust IAM and data-driven solutions. Key Responsibilities Design and develop secure, scalable RESTful APIs (Java) supporting identity and access workflows Build and enhance identity life cycle orchestration (provisioning, de-provisioning, access controls) Develop event-driven solutions using Pub/Sub for Real Time identity and security workflows Integrate APIs with authentication services (OAuth2, OIDC, JWT) and enterprise systems Contribute to cloud-native microservices and Back End services (GCP preferred) Implement automation and Infrastructure as Code (Terraform, CI/CD pipelines) Troubleshoot and optimise IAM, API, and distributed system performance Key Requirements Strong Java development experience (essential) with a focus on API and Back End services Experience building cloud-native applications and microservices architectures Solid understanding of IAM/Identity concepts (OAuth2, OIDC, SAML, federation) Experience with event-driven architectures (Pub/Sub or similar messaging systems) Knowledge of data ingestion, transformation, and API-driven workflows Familiarity with Terraform and cloud platforms (ideally GCP) Desirable Experience with identity platforms (eg Auth0, Okta) Exposure to Kubernetes/containerised environments Understanding of security and compliance frameworks This is a great opportunity to work on cutting-edge identity and API solutions within a large-scale, complex environment, with a strong emphasis on Java engineering and secure system design.