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Link Group

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Mid Java Developer @ Link Group

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Summary

Mid-level Java developer (3–5 years' experience) at Link Group in Warsaw designing and building scalable backend microservices and REST APIs. Daily work spans Java 21+, Spring Boot, PostgreSQL, and Kafka, with Kubernetes, Docker, and Terraform-based CI/CD in an Agile/SCRUM environment.

We are looking for a Mid Java Developer (3–5 years of experience) to design and build scalable, high-performance backend services and APIs within a modern tech environment.


  • Experience: 3–5 years of commercial backend development with strong proficiency in Java and Spring Boot.
  • Tech Stack:
    • Backend: Java 21+, Spring Boot, PostgreSQL, Kafka, OpenAPI, Vault
    • DevOps & Cloud: Kubernetes (IBM Cloud), Docker, Terraform, GitLab CI/Jenkins, Maven
  • Core Skills: Relational databases, RESTful API design/documentation, event-driven architecture, and SCRUM methodology.
  • Nice to Have:
    • Basic familiarity with Angular to collaborate effectively with frontend teams.
    • Cloud experience (IBM Cloud/AWS/Azure) or interest/experience in AI/LLM integration.
    • Financial services background or experience in distributed global teams.

We are looking for a Mid Java Developer (3–5 years of experience) to design and build scalable, high-performance backend services and APIs within a modern tech environment.

,(Backend & API Development: Design and build scalable microservices and RESTful APIs using Java 21+ and Spring Boot., Data & Messaging: Manage seamless data flows using relational databases (PostgreSQL) and event-driven architecture (Kafka)., Quality & Testing: Write clean, maintainable code backed by comprehensive unit and integration tests, and conduct peer code reviews., Delivery & DevOps: Engage in the full SCRUM lifecycle and contribute to the evolution of local CI/CD pipelines and cloud-native infrastructure.) Requirements: Java, Spring Boot, Spring, Boot, PostgreSQL, Kafka, OpenAPI, Kubernetes, IBM, Cloud, Docker, Terraform, GitLab CI, Relational database, REST API, API, Angular, AWS, Azure, AI

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