Senior Java Software Engineer jobs in Brussels – Browse 274 openings on RoboApply Jobs

Senior Java Software Engineer jobs in Brussels

Open roles matching “Senior Java Software Engineer” with location signals for Brussels. 274 active listings on RoboApply Jobs.

274 jobs found

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Brainsquare logo
Full-time|On-site|Brussels, Brussels, Belgium

About Brainsquare Brainsquare focuses on building, improving, and supporting large-scale enterprise application environments. The team brings together practical engineering skills and a structured delivery mindset, working where application development, integration, and collaboration platforms intersect. Brainsquare teams often work with clients over the lon…

Apr 20, 2026
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European Dynamics logo
Senior Java Developer

European Dynamics

Full-time|On-site|Brussels, Brussels, Belgium

We are excited to announce an opportunity for a proficient Senior Java Developer who is fluent in English and will be located in Brussels. The selected candidate will have the flexibility to work either from our office or on-site at client locations. In this initial assignment, the chosen individual will collaborate closely with project leaders and supervise the project team.Key Responsibilities: Design and architecture of software components and building blocks; Evaluation and review of existing system architecture; Coordination of technical architecture implementation; Development of functionalities, including testing, technical documentation, deployment, evaluation, and reporting; Conduct data analysis and create data models; Establish technical communication between project leaders and developers; Ensure the consistency of AV Media metadata with the respective media files; Analyze and index AV Media metadata files; Prepare metadata information for media file dissemination and publication. Qualifications: A university degree in IT with a minimum of 11 years of professional IT experience; Strong expertise in Java/J2EE; Advanced knowledge of Oracle and PL/SQL; Familiarity with NoSQL databases (MongoDB, Solr); Proficiency in tools such as CDI, JPA, Reflection, and Spring (MVC, Container, Scheduler, or QUARTZ Scheduler); Understanding of application design and SOA architecture as well as interoperability technologies; Experience with modeling tools and languages (e.g., UML); Proficient in Spring Security, Tomcat, Jira, and jQuery; Knowledge of software development methodologies (e.g., RUP, Agile); Competence in JSON/XML and HTML; Familiarity with middleware infrastructure and web servers, particularly WebLogic; Knowledge of ITIL standards and best practices will be considered an asset; Excellent command of the English language, both written and spoken. Benefits:If you are looking for a rewarding career in a dynamic and exciting company, where you will contribute as part of a team for a major European institution in a multicultural, multilingual environment with real opportunities to make a difference, we encourage you to submit your detailed CV in English, quoting reference: (9481/01/22).We offer a competitive salary package (either contract-based or full benefits), tailored to your qualifications and experience. All applications will be treated confidentially.

Jan 14, 2022
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Sopra Steria logo
Full-time|On-site|Brussels

Join our innovative team as a Java Software Architect where you will play a pivotal role in designing and implementing cutting-edge software solutions. You will collaborate with cross-functional teams to drive the development of scalable, robust applications that meet the needs of our clients.

Apr 24, 2025
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European Dynamics logo
Senior Java Developer

European Dynamics

Full-time|Hybrid|Brussels, Brussels, Belgium

We are excited to announce an opening for a Senior Java Developer fluent in English, who will contribute their expertise while being based in Brussels, Belgium. The successful candidate will operate either from our office or on-site at client locations. This role entails collaborating closely with a prominent client's IT team as part of our dedicated team.Your Responsibilities:Design, develop, and maintain Information Systems testing scenarios, including new feature testing and non-regression testing;Engage in technical working groups, progress meetings, and discussions with end users, business managers, and project teams (comprising business analysts, project managers, and developers);Create and update technical documentation;Support analysis, deployment, evaluation, and reporting efforts.

Mar 2, 2026
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Sopra Steria logo
Full-time|On-site|Brussels

Join Sopra Steria as a Java Software Architect, where you will play a pivotal role in designing and developing robust software solutions. Your expertise will guide our technical direction and ensure the successful implementation of Java-based applications.

Jun 26, 2025
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European Dynamics logo
Full-time|On-site|Brussels, Brussels, Belgium

We are seeking a highly skilled Application Architect (Java) who is fluent in English to join our dynamic team in Brussels, Belgium. The successful candidate will provide expert services either at our headquarters or directly at client sites. Initially, the architect will collaborate closely with a prominent client's IT team on-site.Key Responsibilities:Develop and maintain robust software applications.Design and implement component architectures and foundational blocks for a web content management system.Analyze the integration of various information systems.Conduct data analysis and modeling.Create comprehensive software architecture documentation.Participate in technical working groups, progress meetings, and user consultations.Support testing, analysis, technical documentation, deployment, evaluation, and reporting processes.Review existing system architectures to facilitate migration to cloud environments.Assist in testing and providing technical training.Draft technical documentation.Support deployment and system configuration.Provide assistance in resolving production issues as required.

Feb 19, 2026
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Sopra Steria logo
Full-time|On-site|Brussels

Join Sopra Steria as a Java Cloud Engineer, where you will play a pivotal role in developing cloud-based solutions that enhance our clients' operations. Engage with cutting-edge technologies and transform innovative ideas into efficient applications. This position offers an exciting opportunity to work with a talented team in a dynamic environment, focusing on delivering high-quality software solutions.

Apr 24, 2025
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European Dynamics logo
Full-time|Hybrid|Brussels, Brussels, Belgium

We are excited to announce an opening for a Senior Java Application Architect proficient in English, to join our esteemed team at European Dynamics in the vibrant city of Brussels, Belgium. This role involves collaborating closely with both our internal development team and our major client’s IT team, either on our premises or at the client site.Key Responsibilities: Conduct comprehensive analysis for the integration of various information systems; Perform data analysis and develop data models; Oversee the implementation of the technical architecture; Act as a technical liaison between project leaders and developers; Create detailed software architecture documents; Engage in technical working groups, progress meetings, and user consultations; Provide support during testing, analysis, technical documentation, deployment, evaluation, and reporting phases.

Jun 27, 2025
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Blackapple Solutions Ltd logo
Senior Java Developer

Blackapple Solutions Ltd

Contract|On-site|Brussels

Hello, I hope this message finds you well!My name is Ramya, and I represent Blackapple Solutions Ltd. We are currently seeking a talented and experienced Senior Java Developer for a contract position in Brussels, Belgium. Below is the detailed job description for your consideration. If you are interested, please respond with your updated CV and the following information so I can submit your application to our client, NIIT. Additionally, feel free to refer any friends or colleagues who may be interested in similar roles.Please provide the following details as soon as possible:Availability/Notice Period:Current Location:Total Experience:Years of Relevant Experience:Expected Pay Rate:Current Salary:Nationality/Visa:Are you willing to work in Brussels, Belgium (Yes/No):________________________________________Job Description:Role: Senior Java DeveloperLocation: Brussels, BelgiumJob Type: Contract (3 Months)Client: NIITKey Responsibilities:• Significant experience in Java development with a focus on functional analysis.• A minimum of 5 years of experience in Java development, including middleware management (IBM MQ, TIBCO), XML handling, and design patterns for transactional environments (R/R, F/F).• Desired knowledge in the following areas: • Concurrent Programming • Multithreading • Actor Model Patterns • Apache Ignite / GridGain • High Availability Systems • Docker • Familiarity with REST/API and the java.util.concurrent API.• Excellent written and verbal communication skills in English; knowledge of Dutch and/or French is a plus.Best Regards,RamyaJunior IT Recruiter (UK & Europe)Blackapple Solutions Ltd8 Cherry Tree Centre, Market Street, Huddersfield,West Yorkshire, United Kingdom, HD1 2ETContact: +44-2035142336 EXT (917)Website: www.blackapple-solutions.co.uk

Mar 15, 2016
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European Dynamics logo
Full-time|Hybrid|Brussels, Brussels, Belgium

We are excited to announce a vacancy for a Senior Application Architect (Java) fluent in both English and French. This esteemed position is located in Brussels, Belgium, where you will provide your expertise either from our office or directly at client sites. In your first assignment, you will seamlessly integrate into our Development team, collaborating closely with a major client's IT team both on-site and remotely.Your ResponsibilitiesConduct thorough analysis of the integration of various information systems.Engage in data analysis and modeling to support decision-making processes.Coordinate the implementation of technical architecture.Serve as a technical interface between project leaders and developers.Produce comprehensive software architecture documentation.Participate in technical working groups, progress meetings, and user discussions.Assist in testing, analysis, documentation, deployment, evaluation, and reporting as needed.Design and create blueprints for Cloud Architecture.

Apr 30, 2026
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Netcompany logo
Full-time|On-site|Brussels

Join Netcompany at the cutting edge of technology as a Senior Enterprise Java Architect – Backend & Integration. In this pivotal role, you will:Offer expert insights into the development of enterprise policies and strategies concerning content, records, archives, and information management, which includes capture, selection, retention, and digital preservation.Lead the architecture, design, and upkeep of records, archives, and information management systems while supervising the technical execution of new or updated policies.Conduct requirement analysis and define needs for content, records, archives, and information management systems, creating functional and technical specifications for backend and integration solutions.Design system integration and data migration strategies for legacy repositories, ensuring seamless transitions with minimal disruption.Develop and sustain robust solutions for long-term digital preservation and archiving, complying with legal, security, and compliance standards including encryption, digital signatures, secure access, and data protection.Establish and apply metadata standards for content and records management to facilitate effective archival description and retrieval.Design and implement scalable data publication and exchange solutions, utilizing linked open data, semantic web technologies, and modern API/integration frameworks.

Feb 26, 2026
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nrb logo
Full-time|On-site|Brussels, Brussels, Belgium

We are seeking a highly skilled Java Architect to join our innovative team at nrb in Brussels. The ideal candidate will have extensive experience in designing and implementing robust Java applications. This role requires a strong understanding of Java frameworks, architecture patterns, and best practices.

Apr 7, 2026
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Jobgether logo
Full-time|On-site|Belgium

Jobgether is looking for a Senior Software Engineer to help build AI-based SaaS solutions. This position is based in Belgium and focuses on designing, developing, and implementing software that improves user experience and supports business goals. Role overview This role centers on creating software products that use artificial intelligence within a SaaS context. Collaboration with cross-functional teams is a key part of the work, ensuring that project requirements are clear and that the final products align with business needs. What you will do Design and develop software solutions for AI-driven SaaS products Implement new features and enhancements to improve user experience Work closely with colleagues from different departments to define and refine project requirements Deliver high-quality software that meets project and business objectives Requirements Experience in software engineering, with a focus on AI or SaaS solutions Ability to collaborate effectively with cross-functional teams Strong skills in designing and implementing software systems

Apr 29, 2026
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Sopra Steria logo
Java Developer

Sopra Steria

Full-time|On-site|Brussels

Join Sopra Steria as a Java Developer and contribute to innovative projects that shape the future of technology. You will work in a dynamic environment alongside a talented team, developing high-quality software solutions that meet our clients' needs.

Jun 26, 2025
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Speechify logo
Full-time|On-site|Brussels, Belgium

Join Speechify as a Senior Software Engineer specializing in Windows and Desktop Applications. In this role, you will leverage your expertise to design, develop, and optimize high-quality software solutions that enhance user experiences. You will collaborate with cross-functional teams to drive product innovations and ensure seamless integration of technologies.

Apr 30, 2026
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European Dynamics logo
Full-time|On-site|Brussels, Brussels, Belgium

We are excited to announce a vacancy for a Senior Application Architect (Java) who is fluent in English to join our dynamic team in Brussels, Belgium. This role involves working on-site at client locations or from our company's premises. The successful candidate will play a pivotal role in collaborating with a major client's IT team, contributing their expertise to ensure successful project outcomes.Your Responsibilities:Conduct thorough analysis and integration of various information systems and components.Engage in comprehensive data analysis and modeling activities.Lead the coordination of technical architecture implementation.Design, develop, and maintain applications that meet specified requirements.Contribute to the deployment and configuration of systems.Create detailed software architecture documentation.Support Project and Stakeholder Management efforts.Participate actively in technical working groups, progress meetings, and discussions with the Project Team.Assist in testing, analysis, documentation, deployment, evaluation, and reporting processes.Design and create blueprints for Cloud Architecture, including reviewing existing systems for potential cloud migration.Develop architecture components and building blocks utilizing cloud technologies.

Oct 14, 2025
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Trasys International logo
Contract|On-site|Brussels, Brussels, Belgium

About Trasys International Trasys International partners with EU Institutions, supporting digital transformation projects across Europe. With more than 30 years of experience, the company focuses on delivering solutions in modernization, digital workspaces, cloud technologies, and IT security. Headquarters are in Brussels, and teams operate in cities such as Luxembourg, Amsterdam, Athens, Stockholm, and Geneva. Role Overview: Mid-Senior Java Developer This on-site role is based in Brussels, Belgium. The position supports a major European Institution, working on large-scale projects within a multicultural public sector environment. What We Look For Mid-level or senior experience as a Java Developer Background in large, complex environments, ideally within the public sector Comfort working in international and multicultural teams Location On-site in Brussels, Belgium.

Apr 16, 2026
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European Dynamics logo
Full-time|Remote|Remote — Brussels, Brussels, Belgium

European Dynamics is hiring a Senior Application Architect (Java, Angular) to work remotely from within the EU. The position centers on designing and guiding the architecture of information systems in partnership with a client IT team based in Brussels. English fluency is essential. What you will do Design and architect information systems tailored to business requirements. Evaluate existing system architectures and suggest improvements. Develop core architectural components and building blocks. Analyze integration between various information systems. Lead the implementation of technical architecture decisions. Document software architecture thoroughly. Take part in technical working groups, progress meetings, and user consultations. Create data and workflow models for applications. Develop application APIs using REST and Swagger frameworks. Build and implement software components using Java Spring and JPA. Integrate applications with corporate IAM services for authentication and authorization. Support software delivery using a CI/CD pipeline. Collaboration and location This is a remote role focused on collaboration with a client team in Brussels, Belgium.

Apr 23, 2026
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European Dynamics logo
Full-time|Remote|Remote — Brussels, Brussels, Belgium

We are excited to announce an opening for a Senior Java Application Architect fluent in English, to contribute as a key expert from anywhere within the EU. The selected candidate will join our Development team and engage closely with a prominent client’s IT team on-site.Key Responsibilities:Architect and design sophisticated information systems.Develop architectural components and essential building blocks.Create comprehensive software architecture documentation.Design application data models and workflow models.Develop APIs using appropriate frameworks such as REST and Swagger.Build software components utilizing back-end technologies like Java Spring and JPA.Implement application integration with corporate IAM services for authentication and authorization.Ensure timely delivery via CI/CD pipelines.

Apr 1, 2026
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Sopra Steria logo
Full-time|On-site|Brussels

Join Sopra Steria as a Java Technical Lead where you will play a pivotal role in guiding our development teams in designing and implementing robust software solutions. You will leverage your expertise in Java technologies to ensure high performance and responsiveness to requests from the front-end.Your responsibilities will include leading technical discussions, mentoring team members, and collaborating with stakeholders to define project requirements. We are looking for a leader who is passionate about technology and can drive innovation within our projects.

Jun 26, 2025

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