Senior Mendix Developer – AI-Driven Legacy Modernisation

HumanInTech; Brussel Hoofdstad; Hybrid; EUR 45,000 - 80,000; Part time

Job summary

HumanInTech 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 equivalent, and fluency in Dutch, English and French. The assignment runs for 25 months, hybrid in Brussels, with part-time to full-time

Qualifications

• Mendix Intermediate Advanced Developer certification or higher, or equivalent experience.
• Expert-level Mendix development skills.
• Experience with AI-assisted development.
• Experience with complex business processes.
• Experience with Agile/Scrum.
• Proficiency in Dutch, English and French.

Responsibilities

• Developing user stories
• Adapting and extending AI-generated components
• Building screens, microflows and integrations
• Performing unit testing

Skills

Mendix development

AI-assisted development

Agile/Scrum

Dutch language

English language

French language

Education

Bachelor's degree

Tools

Mendix Studio Pro

Job description

HumanInTech 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 equivalent, and fluency in Dutch, English and French. The assignment runs for 25 months, hybrid in Brussels, with part-time to full-time