Java Backend Developer

Project-based cooperation for our client

📅 Project Duration
01 January 2026 — 30 June 2026

⏱ Workload
~94 working days within the project period

🌍 Location
Remote

 Project Language
English

 Project Description

Our client is implementing new customs requirements in ZONS — the Customs Messaging System used for declaring non-EU shipments.

The developer will work on implementing new functionalities based on user stories, integrating various interfaces, ensuring communication between microservices, and supporting the team with ongoing bug fixes and system enhancements.

 Responsibilities

• Implement requirements from user stories and bug tickets

• Develop backend components using Java 21 and Spring Boot

• Integrate REST and SFTP interfaces with external systems

• Connect microservices using Kafka topics

• Work with MongoDB for data storage

• Create JUnit tests, including mocks

• Analyze and resolve bugs

• Participate in refinements: clarify and estimate user stories

• Present implemented functionalities during sprint reviews
                                                                                                                                                                                  Requirements

• Strong experience in Java backend development

• Excellent knowledge of Spring Boot

• Familiarity with Kafka, MongoDB, REST/SFTP integrations

• Experience working in agile teams (Scrum)

• Solid experience with JUnit and test mocks

• Good English communication skills
                                                                                                                                                                                                   Team & Process

• Agile environment (Scrum)

• Working closely with developers, product owners, and QA

• Regular refinements, sprint reviews, active communication