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 lifecycle 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