Mendix Developer – Legacy Application Modernisation
Enregistrez cette offre et organisez votre recherche
Créez un compte gratuit pour enregistrer des offres d'emploi, créer des alertes et revenir à cette liste depuis votre tableau de bord.
En continuant, vous acceptez nos Conditions d’utilisation & Politique de confidentialité.
What you will do
You will join a multidisciplinary team modernising a legacy application with over 150,000 lines of code and around 20 modules. The application currently supports case management, data processing and reporting, and will be migrated to a future-proof low-code platform using modern techniques including AI-assisted development, code analysis and model-driven approaches.
Your responsibilities as Mendix Developer include:
- Developing user stories
- Adapting and extending AI-generated components
- Building screens, microflows and integrations
- Performing unit testing
The project is structured in three phases to spread investment across three budget years. Each phase delivers a standalone deliverable that can be used independently of future phases. Each phase is ordered separately.
What we are looking for
- Mendix Intermediate Advanced Developer certification or higher, or equivalent experience
- Expert-level Mendix development skills
- Confirmed experience with AI-assisted development
- Confirmed experience with complex business processes
- Confirmed experience with Agile/Scrum
- Active knowledge of Dutch, English and French
You must provide all requested certificates and documents with your CV so they can be validated.
The setting
This assignment runs for 25 months from December 2026 to the end of December 2028, part-time at 2/5. The work is hybrid, based in Brussels. The actual start and number of days depends on budget approval.
The team will use innovative and automated migration methodologies that leverage artificial intelligence, code analysis and model-driven development to ensure a faster, high-quality and controllable migration. The proposed solution must have been successfully applied in a completed or ongoing project.
You 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.
Location: Brussels, hybrid
Work address: Belgium
Employer / contracting party: HumanInTech
Applications close (Brussels time): October 21, 2026 at 2:00 AM
Engagement: Freelance or employed by HumanInTech
Working hours: Full-time
Experience: 3–5 years or more
Education: Bachelor's or more
Published: October 2026
-
Mendix Developer – Modernisation d'applications legacy
Il y a 2 jours
Brussel Hoofdstad, Brussel Hoofdstad, Belgique HumanInTech Temps plein 60 000 € - 90 000 € ContratCe que vous ferezVous rejoindrez une équipe multidisciplinaire qui modernise une application legacy de plus de 150 000 lignes de code et environ 20 modules. L'application prend actuellement en charge la gestion de dossiers, le traitement de données et le reporting, et sera migrée vers une plateforme low-code pérenne en utilisant des techniques modernes,...
-
Senior Mendix Developer – AI-Driven Legacy Modernisation
Il y a 2 jours
Brussel Hoofdstad, Brussel Hoofdstad, Belgique HumanInTech Temps plein 45 000 € - 80 000 € ContratHumanInTech is seeking a Mendix Developer to join a multidisciplinary team modernising a legacy application in Brussels. You will contribute to AI-assisted development, build screens, microflows and integrations, and perform unit testing as part of a phased migration project.The role requires 3–5 years of Mendix experience, relevant certifications or...
-
Mendix Developer: IA‑Driven Legacy Modernisation
Il y a 2 jours
Brussel Hoofdstad, Brussel Hoofdstad, Belgique HumanInTech Temps plein 60 000 € - 90 000 € ContratHumanInTech est à la recherche d’un Mendix Developer pour moderniser une application legacy de 150k lignes et ~20 modules. Le candidat participera à la migration vers une plateforme low-code, avec IA et analyses de code, dans un cadre agile et international.Profil recherché: Certification Mendix ou équivalente, expertise Mendix avancée, expérience en...
-
Brussel Hoofdstad, Brussel Hoofdstad, Belgique HumanInTech Temps plein 28 000 € - 42 000 € ContratWhat you will do You will join a multidisciplinary team working on the modernisation of a large legacy application with over 150,000 lines of code and around 20 modules. The application will be migrated to a modern low-code platform using innovative and automated migration methodologies. Your responsibilities as functional analyst include: Analyse existing...
-
Brussel, Brussel-Hoofdstad, Belgique HumanInTech Temps plein 60 000 € - 80 000 € ContratWas Sie tun werden Sie werden Teil eines multidisziplinären Teams, das an der Modernisierung einer großen Legacy-Anwendung mit über 150.000 Codezeilen und rund 20 Modulen arbeitet. Die Anwendung wird mithilfe innovativer und automatisierter Migrationsmethoden auf eine moderne Low-Code-Plattform migriert. Ihre Aufgaben als Functional Analyst...
-
Mendix Developer – Modernisierung von Legacy-Anwendungen
Il y a 2 jours
Brussel, Brussel-Hoofdstad, Belgique HumanInTech Temps plein 65 000 € - 90 000 € ContratWas Sie tun werden Sie werden Teil eines multidisziplinären Teams, das eine Legacy-Anwendung mit über 150.000 Codezeilen und rund 20 Modulen modernisiert. Die Anwendung unterstützt derzeit Case Management, Datenverarbeitung und Reporting und wird auf eine zukunftssichere Low-Code-Plattform migriert, wobei moderne Techniken wie KI-gestützte Entwicklung,...
-
Application Architect
Il y a 2 jours
Brussel Hoofdstad, Brussel Hoofdstad, Belgique HumanInTech Temps plein 90 000 € - 120 000 € ContratCe que vous ferez Une organisation publique belge modernise une application legacy de plus de 150 000 lignes de code et environ 20 modules vers une plateforme low-code pérenne. L'application prend en charge la gestion de dossiers, le traitement de données et le reporting. La modernisation utilisera des méthodologies de migration innovantes et...
-
Application Architect
Il y a 2 jours
Brussel Hoofdstad, Brussel Hoofdstad, Belgique HumanInTech Temps plein 60 000 € - 100 000 € ContratWhat you will doA Belgian public-sector organisation is modernising a legacy application with over 150,000 lines of code and around 20 modules to a future-proof low-code platform. The application supports case management, data processing and reporting. The modernisation will use innovative and automated migration methodologies, including artificial...
-
Expert Scrum Master – Modernisation d'application legacy
Il y a 22 heures
Brussel Hoofdstad, Brussel Hoofdstad, Belgique HumanInTech Temps plein 85 000 € - 120 000 € ContratCe que vous ferez Vous dirigerez le processus Scrum pour un projet majeur de modernisation d'application, migrant un système legacy de plus de 150 000 lignes de code vers une plateforme low-code moderne. Le projet se déroule en trois phases distinctes réparties sur trois années budgétaires, chacune livrant un résultat autonome. Vos responsabilités...
-
Mendix developer
Il y a 5 jours
Brussel Hoofdstad, Brussel Hoofdstad, Belgique Alsena Temps plein 70 000 € - 110 000 € ContratWe are looking for a Mendix Low-Code Expert to join a major international IT project within a European institutional environment in Brussels. You will be responsible for designing, developing and maintaining secure, scalable and accessible business applications using Mendix. Working within an Agile and multidisciplinary environment, you will collaborate with...