Hybrid Fullstack Developer jobs in Olen

Consort

Consort recherche un Développeur .NET WPF Senior pour renforcer son équipe à Bruxelles. Le candidat idéal doit avoir de 5 à 8 ans d'expérience et maîtriser le développement sous .NET et WPF. Les responsabilités incluent la conception d'applications sous .NET, la création d'interfaces performantes et

Our client, a specialized public safety organization focused on investigative support, is looking for a Software Engineer to join a dedicated development team. The role involves building and maintaining critical Django-based applications to support complex operational requirements within an on-premi

Infinity Quest

Bachelor’s degree in IT or relevant discipline, combined with minimum 17 years; Experience of 5 years as a full-stack developer; Experience of 2 years with Java in the context of back-end development; Experience of 2 years with relational databases (data modelling in the context of operational syste

Euricom

Ben jij dé .NET-expert die elk softwareplaatje doet kloppen? ✅ Kom bij ons werken! Als Full Stack .NET Developer ben jij de Euricommer die met een brede kijk en een waaier aan skills het verschil maakt. Je timmert elke dag weer aan snelwegen tussen complexe vraagstukken en schaalbare, gebruiksvriend

Build and evolve oneLab, IMEC’s corporate LIMS in Leuven, with a PHP/Laminas backend and a React/TypeScript front end. Key Responsibilities Deliver end-to-end features across PHP/Laminas MVC (controllers, services, Doctrine ORM, Twig) Build and maintain React + TypeScript UI (Vite) and shared compon

ITproposal

ITproposal is seeking a Medior .NET Developer in Brussels to join a dynamic Agile development team focused on impactful digital initiatives in the agricultural sector. This role requires a minimum of 3–4 years of experience in .NET development along with strong expertise in C#, ASP.NET Core, Angular

AKQA Brussels

Are you ready to stop just following the roadmap and start drawing it? Do you want to be the Lead Creative Technologist who architects the future of AI-driven experiences while empowering a talented team to reach their full potential? Your next chapter starts here. Who are we? The digital department

Pauwels Consulting

A leading consultancy in the energy sector is seeking an experienced software developer to support sustainable power infrastructure development. The role involves backend development using .NET and WPF, ensuring high-quality code delivery, and collaboration with cross-functional teams. Candidates sh

Fieldside - freelance network

Een freelance netwerk in Antwerpen zoekt een ervaren freelance Java developer voor uitdagende projecten bij Vlaamse bedrijven. Je werkt aan back-end of full-stack development en geeft training en coaching aan teamleden. Vereist is ten minste 3 jaar ervaring in Java-omgevingen met kennis van Spring e

V-IT NV

For one of our clients, we are looking for an experienced Full Stack Blazor/.NET Developer . 📍 Location: Brussels + Remote 📅 Start date: 01/07/2026 📅 End date: 30/06/2028 🗣 Languages: Dutch/French + English 🔹 Your responsibilities As a developer, you will work end-to-end on the development of n

We’re looking for an experienced Fullstack .NET Developer to join our client’s agile development teams. You’ll be part of a collaborative, multilingual environment where cross-functional teams deliver high-quality applications in an iterative and incremental way. This is a great opportunity to contr

Arbalett

Une entreprise d’ingénierie innovante recherche un(e) Lead Full Stack Developer pour rejoindre son équipe. Vous participerez à la conception et au développement d'une plateforme SaaS intégrant l'intelligence artificielle et une architecture cloud scalable. Ce poste, avec un contrat CDI, offre une ré

Fieldside - freelance network

Een freelance netwerk zoekt een ervaren Java developer die wil werken aan uitdagende projecten bij Vlaamse bedrijven. Je bent verantwoordelijk voor technische analyse en programmatuurontwikkeling in een Java-omgeving met ervaring in Spring en verschillende frontend technologieën. De rol omvat ook he

ALTEN Belgium

A leading technology services company in Brussels seeks motivated Java, Angular, and .NET Developers to join their teams. The position involves developing, maintaining applications, and participating in the full software development lifecycle. Candidates should have at least 2 years of experience, a

ALTEN Belgium

A leading technology company is seeking motivated Java / Angular / .NET Developers to join our teams in Brussels. In this permanent role, you will work on developing and maintaining applications, participating in the software development lifecycle. Candidates should have at least 2 years of experien

Responsum

A tech company in Zaventem is looking for a developer enthusiastic about building applications with modern technologies like React and AI/LLM integration. The role involves fixing bugs and gradually taking on larger features under guidance from senior developers. The ideal candidate has a Bachelor's

SystemsAccountants

Overview Due to a very encouraging period of growth, our multinational corporate client is building up a Centre of Excellence team for their CCH Tagetik application, seeking an experienced CCH Tagetik solution architect/developer . This role requires technical expertise and finance understanding to

Sword Group

Tasks Development of front-end website architecture Designing user interactions on web pages Developing back-end website applications Implementing core business logic Creating servers and databases for functionality Understanding and implementing security and data protection Cross-platform optimizat

09-04-2026 Brussel Deze organisatie telt meer dan 150 medewerkers binnen de IT-afdeling en opereert in een tweetalige context met zowel Nederlandstalige als Franstalige stakeholders. Binnen IT wordt gewerkt volgens de Agile/Scrum-methodologie en de tien developmentteams zijn multidisciplinair sameng

We are looking for a senior .NET developer with a strong backend focus and solid frontend knowledge, who enjoys working both on existing (legacy) applications and on the modernization towards future‑proof solutions. You will play a key role in maintaining business‑critical systems and gradually shap