Java Full Stack Developer at Arηs Group | Brussels

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…

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

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.

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.

Join Altersolutions as a Senior Java/Angular Developer in Brussels. We are looking for a talented individual who is passionate about technology and eager to contribute to innovative projects. This role offers an opportunity to work in a dynamic environment where your skills will directly impact the success of our clients.

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 long term, helping to scale, stabilize, and evolve complex systems. Role Overview: Senior Java Software Engineer This long-term position is based in Brussels and centers on both developing new features and continuously improving existing Java applications. The work goes beyond standard development, blending build and run responsibilities with a strong sense of ownership for the full application lifecycle. What You Will Do Take part in functional analysis and challenge specifications to ensure clarity and feasibility Design, develop, and maintain Java-based applications Maintain high code quality through code reviews and structured delivery practices Test and validate developments before user acceptance Investigate incidents, identify root causes, and implement lasting solutions Update and improve existing systems and their documentation Support business users to keep applications running smoothly Contribute to support processes, reporting, and monitoring application availability Work closely with both IT and business stakeholders Participate in support rotations as needed Location Brussels, Brussels, Belgium

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.

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.

Sword Technologies is looking for a Java Full Stack Developer to join the team in Brussels. The position centers on building and maintaining applications that span both front-end and back-end layers. Teamwork and communication play a key role from the initial design phase through to delivery. Responsibilities Develop and support applications using Java and related technologies Contribute to both server-side and client-side development tasks Work closely with other developers and team members to deliver dependable software Location This role is based in 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.

Join our innovative team at Sopra Steria as a Java Developer, where you will play a crucial role in developing high-quality software solutions. You will work collaboratively with other developers and stakeholders to design, implement, and maintain Java-based applications. If you are passionate about technology and eager to contribute to exciting projects, we want to hear from you!

Join our dynamic team at Sopra Steria as a People Manager specializing in Java development. In this role, you will lead a talented group of developers and testers, fostering a collaborative environment while driving project success. Your leadership will be crucial in aligning team objectives with company goals, ensuring high-quality results in software development.As a People Manager, you will be responsible for mentoring your team, facilitating professional growth, and implementing best practices in coding and testing. You will also work closely with stakeholders to understand project requirements and deliver innovative solutions.

Join uni-systems as a Java Fullstack Developer and play a pivotal role in shaping innovative software solutions. In this fully remote position, you will leverage your expertise in both frontend and backend technologies to deliver high-quality applications that meet client needs.As part of our dynamic team, you will be responsible for developing robust and scalable web applications, collaborating with cross-functional teams, and ensuring optimal performance and user experience.

Role Overview European Dynamics is looking for a Full-Stack Developer (Java, Angular) to join the team in Brussels, Belgium. This role supports both in-house projects and client assignments, with an initial focus on working alongside a major client’s IT team. Clear communication and teamwork are central to this position. What You Will Do Redesign and redevelop backend services that deliver APIs for front-end applications and integrate with other IT systems. This includes APIs for data upload, download, and manipulation. Maintain and improve a middleware layer that connects the front end to PaaS software, managing authentication and authorization. Work with specialists in front-end development, database management, data engineering, and business intelligence to refine the overall architecture. Create and update technical documentation to ensure clarity and knowledge sharing. Contribute to front-end development tasks when required. Support the upgrade and deployment of commercial software tools used for data processing and risk scoring. Collaborate regularly with business analysts, front-end developers, DevSecOps engineers, project leaders, and other developers. Location This position is based in Brussels, Belgium, with work performed at company headquarters or on client sites as needed.

European Dynamics is hiring a Full Stack Developer with experience in Angular and Java for its Brussels location. The role requires fluency in English and involves working either at the company office or directly with client teams. Projects are collaborative and often take place alongside client IT departments. What you will do Develop and maintain both front-end architecture and back-end applications. Design user interactions that are intuitive and responsive. Implement business logic and uphold code quality standards. Create and optimize servers and databases to support application functionality across various platforms. Apply security measures and data protection protocols. Design and build APIs and scalable software solutions. Participate in all phases of the software development lifecycle. Test software and resolve bugs to enhance system performance. Location details This position is based in Brussels, Belgium. Work may take place at the European Dynamics office or on-site with clients, depending on project needs.

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.

Join Arηs Group, a member of Accenture, as an experienced Full Stack Developer specializing in React. You will be instrumental in crafting high-quality solutions tailored to meet business needs.Key ResponsibilitiesDesign, develop, and maintain resilient applications primarily using Java.Leverage Spring Boot and JPA for backend architecture and data persistence.Create and integrate RESTful APIs for scalable solutions.Manage data efficiently and write complex queries using Oracle SQL.Develop clean, responsive user interfaces utilizing React (preferred) or Angular.Collaborate with DevOps/Cloud teams to deploy and oversee applications on AWS infrastructure.Utilize Python for automation, scripting, or data tasks when necessary.Adhere to best practices for code quality, security, and performance.Engage actively in code reviews, sprint planning, and team discussions.

About Trasys International Trasys International partners with EU Institutions, delivering IT solutions for over 30 years. Headquartered in Brussels, the company supports digital transformation for public sector clients across Europe. Service areas include solution modernization, digital workspaces, cloud technologies, and IT security. Offices and active accounts span Luxembourg, Amsterdam, Athens, Stockholm, and Geneva. Role Overview: Junior Java Developer (Near-Site in Brussels) This Junior Java Developer role supports a key European Institution client in Brussels. The position focuses on Java development within a large-scale, multicultural public sector environment. What We Look For Experience in Java development, ideally in sizable project teams Background working in multicultural or public sector settings Trasys International welcomes professionals motivated to contribute to international projects and deliver results in diverse teams.

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.