Java Developer – IAM/API

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 developsecure, scalable RESTful APIs (Java)supporting identity and access workflows
• Build and enhanceidentity lifecycle orchestration(provisioning, de-provisioning, access controls)
• Developevent-driven solutionsusing Pub/Sub for Real Time identity and security workflows
• Integrate APIs with authentication services (OAuth2, OIDC, JWT) and enterprise systems
• Contribute tocloud-native microservicesand Back End services (GCP preferred)
• Implementautomation and Infrastructure as Code(Terraform, CI/CD pipelines)
• Troubleshoot and optimiseIAM, API, and distributed system performance

Key Requirements

• StrongJava development experience(essential) with a focus on API and Back End services
• Experience buildingcloud-native applicationsand microservices architectures
• Solid understanding ofIAM/Identity concepts(OAuth2, OIDC, SAML, federation)
• Experience withevent-driven architectures(Pub/Sub or similar messaging systems)
• Knowledge ofdata ingestion, transformation, and API-driven workflows
• Familiarity withTerraform 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.

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