April 12, 2026
Senior Java Backend Developer (1day/weekly-onsite Warsaw Gdansk)
Senior • Hybrid
Warsaw, Poland
Dear Consultant,
We are seeking an experienced Senior Java Backend Developer to design and build scalable backend systems and microservices for a large enterprise digital platform. Send CV if you are interested and registered in Poland as a self-employed Consultant. (marcillina.tietjen@dcvtechnologies.co.uk)
Senior Java Backend Developer –
Microservices (Contract)
Location: Gdansk or Warsaw, Poland
Work Mode: Hybrid – 1 day onsite per week
Seniority: 7+ years experience
Key Responsibilities
• Design and implement backend systems and microservices• Develop RESTful APIs and web services• Participate in architecture reviews and optimisation initiatives• Debug, profile, and optimise applications• Integrate external APIs and services• Write and maintain technical documentation
Required Skills & Experience
• Strong expertise in Java 8+
• Frameworks: Spring, Spring Boot, Spring MVC, JPA, Hibernate
• Microservices development using HTTP, REST, JSON, XML
• Messaging and distributed systems experience (Kafka)
• Strong understanding of SOA principles and web services (REST & SOAP)
• Experience with Relational or NoSQL databases
• Exposure to containerisation & orchestration technologies
• Experience with React or advanced JavaScript
• Tools: Docker, Git, Maven, Jenkins
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