Senior Java Software Engineer Jobs in Brussels

Senior Java Developer (Contract) Location: Brussels Belgium Work Model: Hybrid (Onsite presence required on Mondays and Thursdays) Contract Duration: June 2026 January 2027 Employment Type: Contract / Freelance Language Requirement: Dutch (CEFR C2) About the Role We are looking for an experienced...

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco our investors include Benchmark General Catalyst Peter Thiel Adam DAngelo Larry Summers and Jack Dorsey. Position: Python SWE Type: Contract Compensation: $100/hour Locatio...

DescriptionDivision: Group Business Solutions (GBS)Your career opportunityJoin our Group Business Solutions (GBS) division where we design and sustain IT solutions for financial market securities. Be part of a dynamic collaborative team in a fast-evolving environment shaping the future of financial...

DescriptionDivision: Group Business Solutions (GBS)Your career opportunityJoin our Group Business Solutions (GBS) division where we design and sustain IT solutions for financial market securities. Be part of a dynamic collaborative team in a fast-evolving environment shaping the future of financial...

Would you like to join a leading Digital Solution Company and contribute to innovative solutions that are built on a daily basisSummaryWe are seeking an experienced Java Developer with deep expertise in Camunda to lead a critical process migration projects. You will be the driving force behind analy...

Skills and CompetenciesYou've set technical direction for teams, influenced org-wide standards, and solved novel problems at scaleProven experience shipping production software (minimum 7 years, end-to-end feature ownership).Strong proficiency in TypeScript for both frontend and backend development....

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco our investors include Benchmark General Catalyst Peter Thiel Adam DAngelo Larry Summers and Jack Dorsey. Position: Bilingual SWE (Chinese Japanese Ukrainian) Type: Contract...

DescriptionDivision: Group Business Solutions (GBS)Group Business Solutions (GBS) ensures Euroclears leading position by delivering safe reliable and sustainable IT solutions for the financial securities markets. Your Team - GBS Collateral Management Tribe:Within GBS you will join the Collateral Man...

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco our investors include Benchmark General Catalyst Peter Thiel Adam DAngelo Larry Summers and Jack Dorsey. Position: Bilingual SWE (Chinese Japanese Ukrainian) Type: Contract...

Senior Java Developer Brussels & Ghent Belgium Start Date: May 2026 OverviewWe are looking for a Senior Java Developer to design build and maintain scalable backend services within a cloud-native environment. You will work on high-impact digital platforms focusing on secure data handling performance...

Join Axon and be a Force for Good.At Axon were on a mission to Protect Life. Were explorers pursuing societys most critical safety and justice issues with our ecosystem of devices and cloud software. Like our products we work better together. We connect with candor and care seeking out diverse persp...

ABOUT USWere the worlds leading provider of secure financial messaging services headquartered in Belgium. We are the way the world moves value across borders through cities and overseas. No other organisation can address the scale precision pace and trust that this demands and were proud to support...

ResponsibilitiesDesign scalable solutions: Develop and maintain Java-based backend applications and microservices with a focus on performance and reliability.Deliver high-quality code: Implement Spring Boot applications following best practices in clean code testing and performance optimization.Supp...

Senior Full Stack Java / Angular Developer (Detacheringsbasis) Voor een overheidsgerelateerde omgeving zoeken wij een ervaren Senior Full Stack Developer die een bestaand ontwikkelteam versterkt binnen een domein rond documentbeheer en archivering. Context Je werkt mee aan de vervanging van een vero...

Software Engineer (Python / Django / React) Brussels Belgium Full-time Hybrid (2 days onsite) May 2026 December 2026 Working within a specialized law-enforcement environment focused on combating cybercrime terrorism organized crime and large-scale criminal activities. Contributing to the developm...