Java Full-Stack Engineer (IAM & Security Microservices)

Just Eat Takeaway.com; Enschede; On-site; EUR 90,000 - 120,000; Full time

Job summary

Just Eat Takeaway.com is seeking a proactive Full-Stack Engineer for its Identity & Access Management team. You will design and build high-throughput authentication services using Java and Keycloak, and deliver responsive React dashboards for user and partner identity journeys.

You will also support .NET SDKs and Python automation, run services in Docker/Kubernetes on AWS, and apply OAuth2/OIDC and RBAC/ABAC security patterns to ensure reliable, secure systems across a global ecosystem.

Qualifications

• Strong Java backend experience with a polyglot mindset.
• Hands-on knowledge of identity protocols (OAuth2/OIDC/SAML).
• Experience building scalable identity and access management systems.
• Proficient in React frontend development and modern security practices.
• Familiarity with cloud platforms, containerization, and CI/CD tooling.

Responsibilities

• Build and scale enterprise Identity Services using Java and Keycloak.
• Deliver end-to-end features with React-based frontend interfaces.
• Support polyglot ecosystems with .NET SDKs and Python scripts.
• Drive cloud infrastructure with Docker, Kubernetes, and AWS.
• Uphold modern security patterns and participate in architectural reviews.

Skills

Java backend

AuthN/AuthZ

React frontend

Kubernetes

Docker

AWS

.NET SDK

Python scripting

OAuth2/OpenID Connect

AI-assisted development

Tools

Keycloak

Docker

Kubernetes

AWS

Job description

Just Eat Takeaway.com is seeking a proactive Full-Stack Engineer for its Identity & Access Management team. You will design and build high-throughput authentication services using Java and Keycloak, and deliver responsive React dashboards for user and partner identity journeys.

You will also support .NET SDKs and Python automation, run services in Docker/Kubernetes on AWS, and apply OAuth2/OIDC and RBAC/ABAC security patterns to ensure reliable, secure systems across a global ecosystem.