Tech stack:

• Java 11–17, 
• Spring 5, Spring Boot, Spring Reactive,
• MongoDB, 
• Kubernetes

About the role:

We are looking for a skilled Java Developer to join our team working on a high-impact benefits management system used by over half a million active users worldwide every month. In this role, you will be part of a strategic modernization initiative focused on upgrading our authentication system to a modern identity provider while maintaining and enhancing our multi-tenant platform. This is an exciting opportunity to contribute to a global system, collaborate with stakeholders, and work with cutting-edge technologies in a dynamic environment.

What you will do:

• Replacing the outdated authentication system with Keycloak, including defining frameworks and delivering a proof of concept.

• Analyze and document current identity system requirements to ensure functional compliance and a smooth migration.

• Collaborate with stakeholders to define technical and security requirements for the new identity provider.

• Evaluate integration patterns, user flows, and compatibility with existing applications and infrastructure.

Requirements:

• Proven senior-level commercial experience with Java (11-17).

• Hand on knowledge of the Spring ecosystem (Spring 5, Spring Boot, Spring Reactive).

• Practical experience with MongoDB and Kubernetes.

• Solid understanding of authentication systems and experience integrating with identity providers (e.g., Keycloak).

• Ability to analyze complex systems, document requirements, and deliver proof of concepts.

• Excellent collaboration and communication skills to work with cross-functional stakeholders.

• English language proficiency at B2 level or higher.

• Experience working on multi-tenant SaaS platforms.
• Knowledge of OAuth2, OpenID Connect (OIDC) protocols.
• Familiarity with modern CI/CD pipelines.
• Experience in cloud environments (AWS, Azure, GCP).