P591: Senior Java Developer

The candidate should be based in Lithuania!

Role Overview:
We are looking for a Senior Java Developer / Tech Lead with strong Keycloak and IAM experience to join a long-term telecom project, focusing on authentication, authorization, and secure backend development.

Key Responsibilities:

• Develop backend services using Java, Spring Boot, and REST APIs

• Implement and support OAuth2 / OIDC-based authentication flows

• Configure and manage Keycloak (realms, clients, roles, token policies)

• Lead code reviews, mentor team members, and ensure high-quality delivery

• Build containerized applications using Docker

• Implement and support CI/CD pipelines

• Work with SQL databases (PostgreSQL / MySQL)

Must-Have Requirements:

• Strong hands-on experience with Java, Spring Boot, and REST APIs

• Deep understanding of OAuth2 / OIDC

• Proven production experience with Keycloak

• Experience with Docker and CI/CD pipelines

• Solid SQL and JPA / Hibernate knowledge

• Experience leading code reviews, mentoring, and delivery ownership

• Experience in telecom or fintech environments

• Fluent English

Nice to Have:

• Experience with Quarkus

• Knowledge of Kubernetes (Helm, Operators)

• Experience with Kafka / RabbitMQ

• Understanding of security best practices (OWASP, TLS, secrets):
  
  
  📩 Ready to Join?
  We look forward to receiving your application and welcoming you to our team!