Full Stack Engineer

On site

Brussels, Belgium

Freelance

12-03-2025

Share this job:

Score my CV Apply

Job Specifications

Our client in Brussels, Belgium is looking for an experienced Full Stack Developer. This is a contract/freelance position for 9 months initially with a strong possibility of extensions.

The candidate must hold a bachelor's degree in computer science and have ideally 20 years of experience in IT, including at least 15 years in Java application development. A recent and successful experience of at least 5 years as a Full Stack Java/Angular Developer & Tech Lead is required. The candidate must also demonstrate experience in migrating Java microservices with Spring Boot and deploying applications on OpenShift. A proven experience of at least 1.5 years within an IPSS is necessary.

Required Skills
Expertise in Java, Spring Boot, Angular, OpenShift/Kubernetes
Experience with SOAP/REST, Hibernate, Docker, ActiveMQ
Proficiency with tools such as JIRA, Maven, Cucumber, Cypress
Strong knowledge of microservices architecture and APIs (OpenAPI)
Solid experience in Agile/Scrum environments
Languages
Active knowledge English and French/Dutch.

About the Company

LA International is a Digital and Technology Resourcing and Project Solutions organisation, with Enhanced Government Accreditation. Operating globally from the largest single-site facility in the UK. LA International is the UK’s number 1 and largest supplier of Security Cleared Digital and Technology resource to His Majesty’s Government. With a successful track record spanning over 40 years of delivering Resourcing and Project Solutions, we have been at the forefront of providing innovative Digital, Technology, Transform... Know more

Related Jobs

Company Name: SEIDOR
Job Title: Full Stack Engineer
Job Description: #HumanizingTechnology ABOUT SEIDOR At SEIDOR, we help drive the transformation and competitiveness of our clients through technology and innovation, always focusing on the value of the human side and being committed to talent and sustainable development. We are a diverse and inclusive organization that believes in equal opportunities. We already have over 8,000 professionals in 45 countries across Europe, Latin America, the United States, the Middle East, Africa, and Asia. Here, you can develop and grow both professionally and personally from day one, with the support of a great team that shares human values. We carry out projects with a positive impact at both national and international levels, serving clients from different industries and collaborating closely with the leading technology providers (such as SAP, Microsoft, Salesforce, IBM, Google, AWS, Cisco, Adobe). We are one of the most recognized and awarded companies by our partners. We are committed to sustainability and promote ESG (Environmental, Social, and Governance) criteria to achieve sustainable development. We have reduced and offset our carbon footprint, becoming a net-zero company. At SEIDOR, we believe that to address the challenges of the digital world and the new hurdles that arise, we must have the best allies, market-leading technologies, and, above all, the best people. Will you join us in humanizing technology? ABOUT THE JOB We are a large company with a start-up spirit. We organize ourselves into expert knowledge Units that collaborate with each other. That's why we are looking for curious individuals who are motivated by challenges and eager to grow personally and professionally, to join our team and make a positive impact on the world through technology. ARE YOU UP FOR THE CHALLENGE? We want you to be a part of our team, from Brussels, as a Full-stack developer. WHAT WILL YOU DO IN YOUR DAY-TO-DAY? • Development, maintenance and evolutive changes of Java Spring( Kafka, DB Orcle) applications • Ensure security of applications. • Read and understand BPMN and UML models • Read and understand functional requirements • Implement existing functional requirements • Apply implementation best practices • Review, test and debug existing code • Prepare JUnit Test scenarios and cases • Implement JUnit Test scenarios and cases • Configuration and management of infrastructure • Document different development phases • Assistance to other team members in development, testing, configuration, documentation, deployment, evaluation and reporting • Implement existing functional requirements using eUI framework • Prepare UI Test scenarios and cases • Implement UI Test scenarios and cases • Implement core business logic. • Creation of servers and databases for functionality. • Design and implementation of data storage solutions. • Understanding and implementation of security and data protection. • Optimization of the application for maximum speed and scalability. • Taking lead on projects, as needed. • Maintenance of code integrity and organisation. WHAT DO WE EXPECT FROM YOU? Expertise in developing applications with Java Spring & API, Kafka, DB Oracle Good knowledge of architecture best practices and patterns. Good knowledge of microservices and architecture in the cloud. Good knowledge of applications design. Good knowledge of modelling tools and standards (BPMN). Good knowledge of Enterprise Architecture. Good knowledge of Relational DBMS. Good knowledge of business process analysis, modelling and automation with Camunda. Knowledge of interoperability technology (web services, message oriented middleware, service oriented bus, event architecture). Expertise in Angular 14+, Javascript and front-end architecture and development Ability to cope with fast changing technologies used in application architecture and design and cloud architecture integration Experience with middleware integration platforms. Experience with micro-services, macro-services and event-management based architectures Expertise in using Java Spring & API Kafka Message Broker Relational DB Oracle Elastic DB Expertise in Continuous Integration and Deployment o Working experience with the following tools: GitLab, JIRA, Confluence, Bamboo, Nexus, Crucible, Jenkins and Sonar. o Modern DevSecOps Experience with Docker and Kubernetes is a plus. Ability to understand, speak and write English (C1 level) , French (C1) will be an advantage. CERTIFICATIONS & STANDARDS: The following certificates & standards are required for the performance of tasks: • Project Management Professional (PMP) Optional: • Any Cloud certification WHAT WILL YOU FIND AT SEIDOR? A diverse team. We respect the differences that make us more human. Companionship. We work as a team and learn from each other. Flexibility and work-life balance. Remote working is in our DNA. We promote flexible working hours and offer shorter working day every Friday, as well as in the months of July and August. Continuous learning. Language courses, technical training, certifications, and more. Personalized career development, allowing you to decide where you want to go. Autonomy and the opportunity to suggest and promote new opportunities. Flexible compensation program. Childcare vouchers, restaurant benefits, transportation, and health insurance. Exclusive discounts and special conditions on technology, leisure, travel, and more. You can be part of charitable and environmentally related initiatives. If you have international interests, we are present in 45 countries. Join our team and help us humanize the world through technology!

Company Name: Falcon Smart IT (FalconSmartIT)
Job Title: Senior Developer
Job Description: Job Title: Senior Developer Job Location: Brussels , Belgium Job Type: Contract / Hybrid Job Description: REQUIRED PROFILE At least bachelor's degree in computer science 5 years hands on software development experience on OO context with exposure to API development Mastery of software development processes (SDLC), methods and trends Excellent in data structures, algorithms and problem solving skills and ability to apply design patterns in architecture Full-stack development experience & Agile software development management experience (Python, .Net, etc.) Experience with Microsoft Power solution French or Dutch speaking and fluent in English, both orally and in writing Knowledge of UL3 platform from Vereycken & Vereycken is an asset. Ability to work both individually and as part of a collaborative team Experience in Insurance (Life Insurance) High standards with just-enough documentation, unit testing, code reviews, test automation, continuous integration & deployment, and a preference for agile methods RESPONSIBILITES Participate in technical feasibility studies and contribute to the reflection on functional analysis with Vereycken&Vereycken Design and document solution in a comprehensive manner to ensure development work is performed accordingly Support decomposition of work in stories to optimise the workload planning across team. Design, Maintain and Improve development standards for the team improvement. Carry out the technical implementation and improvement of all kinds of applications according to specifications where required Optimally collaborate with Architects, Infrastructure and Operations colleagues to optimise the solutions while maintaining high standards and security Prepare technical documentation for the programs developed in order to provide IT colleagues with a tool for the use of the programs Developing and maintaining reporting tooling from UL3 and other applications towards external and internal DBs, XML, csv, ….. Ad hoc development of tools supporting the policy administration and other work streams in the company. Coordinate development related efforts engaging our Group IT colleagues You report to the IL Application Development Manager and are part of a team of developers with whom you collaborate constructively and balanced working around Vereycken&Vereycken UL3 Policy Administration System. As a Senior IT developer, you are in charge of managing, developing, and maintaining applications developed in-house. You are also actively participating in global maturity increase and SDLC improvement based on your expertise.

Company Name: Falcon Smart IT (FalconSmartIT)
Job Title: Senior Developer ( Corporate Life )
Job Description: Job Title: Senior Developer ( Corporate Life ) Job Type: Contract Job Location: Brussels , Belgium / Hybrid Job Description: REQUIRED PROFILE At least bachelor's degree in computer science 5 to 10 years hands on software development experience on OO context with exposure to API development & consumption of legacy Cobol applications Mastery of software development processes (SDLC), methods and trends: systems and technology tools Excellent OO, data structures, algorithms and problem solving skills and ability to apply design patterns in architecture Full-stack development experience & Agile software development management experience (Delphi, .Net, etc.) Experience in Microsoft Power Platform French speaking and fluent in English, both orally and in writing Ability to work both individually and as part of a collaborative team Experience in Insurance (Life Insurance) High standards with just-enough documentation, unit testing, code reviews, test automation, continuous integration & deployment, and a preference for agile methods RESPONSIBILITES Participate in technical feasibility studies and contribute to the reflection on functional analysis Design and document solution in a comprehensive manner to ensure development work is performed accordingly Support decomposition of work in stories to optimise the workload planning across team. Design, Maintain and Improve development standards for the team improvement. Carry out the technical implementation and improvement of all kinds of applications according to specifications where required Optimally collaborate with Architects, Infrastructure and Operations colleagues to optimise the solutions while maintaining high standards and security Prepare technical documentation for the programs developed in order to provide IT colleagues with a tool for the use of the programs You report to the CL IT Software & Planning Manager and are part of a team of developers with whom you collaborate constructively and balanced. As a Senior IT developer, you are in charge of managing, developing, and maintaining applications developed in-house. You are also actively participating in global maturity increase and SDLC improvement based on your expertise.

Company Name: SEIDOR
Job Title: Full-stack developer - Brussels - Near site
Job Description: We are on the lookout for a Full-stack developer to join our team for working with European Institutions based in Brussels in an Near site position. Get to know us - SEIDOR At SEIDOR, we drive client transformation and competitiveness with cutting-edge technology and innovation , with a relentless focus on the human element and a commitment to nurturing talent and sustainable growth. As a diverse and inclusive company that champions equal opportunity, we boast a team of over 8,000 professionals in our global presence across 45 countries in Europe, Latin America, the USA, the Middle East, Africa, and Asia. We believe the digital world's challenges require not only the best technologies and partnerships but most importantly, the best people. That's where you come in – we need you to help us scale new heights. For this position you would be working with our client from the European institutions. DIGIT A, in partnership with Commission services and other stakeholders, provides high quality corporate Business Solutions (Information Systems), common frameworks and interoperable, reusable components enabling the successful implementation of the Commission's Digital Transformation and EU policies. DIGIT.A.4 builds, operates and supports re-usable solutions, promoting their use in information systems both in DIGIT and in the rest of the Commission. The reusable solutions are either developed internally or based on open source software, tailored to the needs of the European Commission. Below are the details of your role and requirements. Your role Development, maintenance and evolutive changes of Java Spring( Kafka, DB Orcle) applications Ensure security of applications. Read and understand BPMN and UML models Read and understand functional requirements Implement existing functional requirements Apply implementation best practices Review, test and debug existing code Prepare JUnit Test scenarios and cases Implement JUnit Test scenarios and cases Configuration and management of infrastructure Document different development phases Assistance to other team members in development, testing, configuration, documentation, deployment, evaluation and reporting Implement existing functional requirements using eUI framework Prepare UI Test scenarios and cases Implement UI Test scenarios and cases Implement core business logic. Creation of servers and databases for functionality. Design and implementation of data storage solutions. Understanding and implementation of security and data protection. Optimization of the application for maximum speed and scalability. Taking lead on projects, as needed. Maintenance of code integrity and organisation. Compile and analyse data, processes, and codes to troubleshoot problems and identify areas for improvement. Testing and fixing bugs or other coding issues Meet both technical and consumer needs. Write technical documentation What’s in it for you? From day one, you’ll find opportunities for personal and professional development within a supportive team environment. We offer: A permanent role at a leading tech project firm (subcontractor also possible). A hybrid work schedule, blending in-office collaboration with the convenience of working from home. Continuous learning and development through SEIDOR Academy. A package including salary and additional annual bonus, working equipment, phone and other benefits. A dynamic international workplace with diverse teams. A commitment to your well-being, work-life balance, and career growth. Rapid advancement opportunities in a short period of time. Engaging events and a comprehensive onboarding program. At SEIDOR, your growth is our success, and we strive to make our workplace feel like home. Discover the nine core aspects of our culture that define us at SEIDOR: https://www.seidor.com/en-es/talent If this resonates with you, we'd love for you to apply to our opening, and we'll be in touch soon! Requirements: Who we think you are: At least 3 years of specific expertise in one or more of the following: Experience with middleware integration platforms. Experience with micro-services, macro-services and event-management based architectures Expertise in using Java Spring & API Kafka Message Broker Relational DB Oracle Elastic DB Strong expertise in process analysis for streamlining and automation. Familiarity with the contemporary tools and techniques for process automation. Business Process Management and Modelling techniques, BPMN 2.0 specification. Strong knowledge and experience with Camunda framework to apply executable BPMN specification subset restrictions and Camunda specific configuration Expertise in Continuous Integration and Deployment Working experience with the following tools: GitLab, JIRA, Confluence, Bamboo, Nexus, Crucible, Jenkins and Sonar. Modern DevSecOps Experience with Docker and Kubernetes is a plus.