20 beste vacatures voor de functie van backend developer in brussels, bru (nieuwe medewerkers gezocht)

Java Developer
itsme® —Brussel
- Voltijds
- Hybride werken
- Java
- SQL
- Bachelor
Snel solliciteren
Full Stack Java Ontwikkelaar (OVAM)
Vlaanderen Connect. —Brussel
- € 3.920 - € 5.300 per maand
- Voltijds
- Java
- Analytisch vermogen
- Thuiswerkopties
- Pensioensparen
Medior Backend .NET Developer
Keystone Solutions —Brussel
- Voltijds
- Azure
- Oracle
- DevOps
12 uur
AI-Enabled Fullstack .NET Engineer
Sopra Steria —Brussel
- Voltijds
- Computerwetenschappen
- Azure
- Informatica
SOFTWARE ARCHITECT
Spacebel —Hoeilaart
- Java
- Master
- AWS
Java Developer (Freelance)
Smile Group —Sint-Pieters-Woluwe
- Hybride werken
- Java
- Agile
Snel solliciteren
QA Software Engineer
Innovation Sprint —Sint-Lambrechts-Woluwe
- Computerwetenschappen
- Informatica
- Master
PHP / full-stack developer for Ticketmatic core team
Ticketmatic —Leuven
- Voltijds
- Hybride werken
- Bachelor
- JavaScript
- API's
Snel solliciteren
C++ Developer
OpenVPN —Brussel
- Voltijds
- Thuiswerk
- Computerwetenschappen
- Informatica
- AWS
Snel solliciteren
AI engineer
ixor —Mechelen
- Voltijds
- Computerwetenschappen
- Azure
- Java
- Openbaar vervoer vergoeding
- Tankkaart
Java Cloud Engineer
Yechte —Brussel
- € 41.896,38 - € 82.761,10 per jaar
- Voltijds
- Computerwetenschappen
- Azure
- Informatica
Snel solliciteren
14 dagen
Senior Software Engineer (Payflip Payroll)
Payflip —Brussel
- Voltijds
- Thuiswerk
- Azure
- Engels
- API's
Full-stack Developer (Java, Angular)
EUROPEAN DYNAMICS —Brussel
- Voltijds
- Hybride werken
- Doctoraat
- Engels
- Java
Snel solliciteren
Freelance Backend Engineer
Twipe —Leuven
- Deeltijds
- Hybride werken
- Databases
- SQL
- AWS
Java Developer M/F
Consort Group —Bruxelles Ixelles
- Hybride werken
- Java
- API's
- Agile
Snel solliciteren
Developer
EGOV Select —Brussel
- Voltijds
- Azure
- DevOps
- Java
1 dag
Full Stack Engineer (AI Platform / RBQM)
Clario —Leuven
- Voltijds
- DevOps
- AWS
- Machine learning
Freelance Python Developer (met kennis van LLM)
Hived NV —Leuven
- Deeltijds
- Hybride werken
- Java
- Master
- AWS
Snel solliciteren
3 dagen
Java Developer
ARHS Technology —Leuven
- Voltijds
- Oracle
- Java
- SQL
Snel solliciteren
Senior Full Stack Engineer (PHP/Symfony/Vue.js)
Mobile Locker NV —Zaventem
- Voltijds
- Hybride werken
- Databases
- JavaScript
- Agile
Snel solliciteren

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Java Developer

itsme®
Brussel

Snel solliciteren

Vacaturegegevens

Voltijds

Kwalificaties

Spring Boot
CI/CD
Go
Kubernetes
Java
SQL
Databasemanagement
Bachelor
Gedistribueerde systemen
Back-end development
GitHub

Volledige vacaturetekst

itsme® has fundamentally changed how people lead their digital lives in Belgium, but we are not stopping there! Do you want to be a driving force to help expand on this success story as part of a talented team that is making a positive impact on society? Then keep on reading, you’ll probably like what you’ll see.

We are itsme®, one of Europe’s fastest-growing scale-ups, with 115 team members and growing. Our mission: to provide a state-of-the-art digital identity solution for all people, enabling them to interact securely in the digital space. Now, only nine years after being founded, close to 8 million citizens use the itsme® app to identify themselves and sign documents online. Starting in Belgium, we successfully launched the itsme app in 32 European countries, with the ambition of becoming an internationally leading player.

We are looking for a dedicated Java Backend Developer to help us maintain, optimize, and evolve our core backend system. If you thrive on reverse engineering, digging into legacy codebases, and turning complexity into clarity, this could be your next challenge.

This role is ideal for someone who loves to get under the hood of complex systems and improve stability, maintainability, and performance.

What your job looks like

As a Java Backend Developer, your mission is to take full ownership of our existing backend system. This is a brownfield environment: no greenfield development from scratch, but rather deep technical work on a mature codebase that powers the heart of itsme®.

Your daily work will involve:

Understanding and maintaining our monolithic Java application running in production.
Investigating and resolving bugs, optimizing performance, and ensuring reliability.
Reverse engineering the current system to identify modular components and support future architecture plans.
Supporting CI/CD processes and helping evolve our deployment pipelines.
Collaborating with our architecture team to gradually refactor and modularize the backend into more manageable components.
Ensuring that the “invisible engine” behind our app runs seamlessly for millions of users.

Minimum of 4 years of experience in backend development, with a focus on Java & Spring Boot;
Strong experience with backend architecture and legacy systems, especially those needing reverse engineering, refactoring, and optimisation;
Demonstrated experience in optimising and cleaning up a backend, particularly for brownfield project;
Experience with CI/CD processes (e.g., Github workflows, automated builds, pipelines);
Exposure to working with Kubernetes for deployment and containerisation;
Solid experience in SQL, database management, and related backend technologies;
Experience in highly regulated or security-sensitive environments is a plus, given the nature of the project.
Willingness to grow beyond the current stack and contribute to a changing technical landscape
Strong motivation to work in evolving environments where systems are actively being phased out or re-architected
Curiosity and willingness to learn new technologies and paradigms (e.g. Go, distributed systems)

What we offer

Being welcomed by an informal, enthusiastic, and ambitious team that is revolutionising how we safely manage our digital identity, in Belgium & beyond.
Offices within walking distance from Brussels Central Station, with the possibility to work remotely 3 days a week.
A contract of indefinite duration, with an attractive compensation package.
An environment where we care a lot about our core values:
- Integrity: being fair, honest & transparent so that we can be trusted.
- Inclusiveness: being an open environment in which all team members' opinions are taken into account.
- Innovation: building future-proof solutions by finding new ideas and methods to solve problems.

Snel solliciteren

Verfijn je zoekopdracht

backend developer vacatures in brussels, bru

Java Developer

Full Stack Java Ontwikkelaar (OVAM)

Medior Backend .NET Developer

AI-Enabled Fullstack .NET Engineer

SOFTWARE ARCHITECT

Java Developer (Freelance)

QA Software Engineer

PHP / full-stack developer for Ticketmatic core team

C++ Developer

AI engineer

Java Cloud Engineer

Senior Software Engineer (Payflip Payroll)

Full-stack Developer (Java, Angular)

Freelance Backend Engineer

Java Developer M/F

Developer

Full Stack Engineer (AI Platform / RBQM)

Freelance Python Developer (met kennis van LLM)

Java Developer

Senior Full Stack Engineer (PHP/Symfony/Vue.js)

Ik wil de nieuwste vacature-alerts ontvangen voor de functie van backend developer in brussels, bru

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