Application Architect – Public Sector Digital Services

h3What you will do /h3pYou will join delivery teams working on the development, integration, and evolution of critical digital services supporting public administrations. The initiative aims to enable digital transformation through interoperable, secure, and scalable solutions that facilitate collaboration and information exchange between organisations. /ppYour responsibilities include: /pulliContribute to the design of application architecture and technical building blocks in collaboration with technical leads and solution architects /liliDevelop and maintain business applications and shared digital services /liliDevelop application components, APIs, and web services /liliParticipate in technical workshops, Agile/Scrum ceremonies, and stakeholder meetings /liliSupport testing activities, technical documentation, deployments, quality assurance, monitoring, reporting, and continuous improvement initiatives /liliCollaborate with multidisciplinary teams to ensure alignment with business and technical requirements /liliEnsure adherence to security, performance, interoperability, and quality standards /liliConduct code reviews /li /ulh3What we are looking for /h3pbExperience: /b /pulliMinimum 7 years of professional experience in Java software development /liliMinimum 5 years of professional experience in application architecture /liliExperience working in complex multi-system environments and large-scale digital transformation projects /liliProven experience in Agile delivery environments /liliExperience in public sector environments is considered an asset /li /ulpbTechnical

skills:
/b /pulliJava = 21 and Spring Framework (Core, JDBC, Data, Security, AOP) /liliJPA / Hibernate /liliRESTful Web Services /liliOpenAPI / Swagger /liliKeycloak, Lombok, MapStruct /liliSOA, Backend-for-Frontend, CQRS /liliTest-driven development (JUnit, Mockito, Spring Test, Cypress) /liliAngular 20 /liliMaven /liliDocker /liliOpenShift / Kubernetes /liliGit and GitLab CI/CD /liliSonarQube /liliNPM /liliOAuth 2.0 /liliFlyway or Liquibase /liliPostgreSQL, SQL Server and relational databases /liliBPMN and UML /liliJira and Confluence /liliAgile/Scrum methodologies /liliContinuous Integration and Continuous Delivery (CI/CD) /li /ulpbSoft

skills:
/b /pulliStrong analytical and problem-solving skills /liliAbility to quickly understand and maintain existing codebases /liliCustomer and solution-oriented mindset /liliTeam player with strong communication skills /liliAutonomous, proactive, and quality-focused /li /ulh3The setting /h3pThis assignment runs for 4 months, starting as soon as possible and ending at the end of January 2027. /ppYou will work in a hybrid environment in Brussels. Regular presence on site may be required depending on project needs and team activities. /ppYou will collaborate with multidisciplinary teams across different public sector organisations. /ppbLanguages: /b French at expert level and English at working proficiency are required. /ppYou can join us for this assignment as a freelancer or as an employee of HumanInTech. Same role, same team. If you join as an employee, your employment continues beyond this assignment. When it ends, we’ll work together to find your next assignment. /ppbLocation: /b Brussels, hybrid /ppbWork address: /b Belgium /ppbEmployer / contracting party: /b HumanInTech /ppbApplications close (Brussels time): /b October 31, 2026 at 1:00 AM /ppbEngagement: /b Freelance or employed by HumanInTech /ppbWorking hours: /b Full-time /ppbExperience: /b 6–10 years or more /ppbEducation: /b Bachelor's or more /ppbPublished: /b October 2026 /p