Mendix Developer - Build Scalable Apps & Integrations

Phoenix Technologies; Brussel Hoofdstad; On-site; EUR 60,000 - 90,000; Full time

Job summary

Phoenix Technologies is seeking an experienced Mendix Developer to design, build, and maintain business applications on the Mendix low-code platform within the GSC environment. You will work in agile teams with analysts, UX/UI designers, testers and project managers to keep applications consistent, maintainable, and reusable across the Mendix portfolio.

The role requires hands-on Mendix expertise (3+ years) and a strong background in Java/JavaScript for custom actions.

Qualifications

• 5+ years in IT development with hands-on Mendix
• Proven delivery of Mendix apps into production with enterprise integrations
• Experience with Mendix 10 or later, on-premises or private cloud

Responsibilities

• Translate user stories and requirements into Mendix apps (domain models, flows, pages, security roles).
• Build integrations with internal/external systems via APIs and connectors, implement SSO (SAML/OIDC).
• Develop reusable modules/widgets in line with GSC standards and contribute to the shared library.
• Apply secure-by-design practices and RBAC; ensure data protection requirements.
• Create accessible interfaces meeting WCAG 2.1 AA.
• Write tests and participate in code reviews; manage technical debt with Mendix tools.
• Support deployments, releases, and production maintenance.
• Produce and maintain technical documentation.

Skills

Mendix

Java

JavaScript

Scrum

System integration

Education

Mendix Advanced Developer certification

Mendix 10+ experience

Tools

Mendix Studio Pro

Job description

Phoenix Technologies is seeking an experienced Mendix Developer to design, build, and maintain business applications on the Mendix low-code platform within the GSC environment. You will work in agile teams with analysts, UX/UI designers, testers and project managers to keep applications consistent, maintainable, and reusable across the Mendix portfolio.

The role requires hands-on Mendix expertise (3+ years) and a strong background in Java/JavaScript for custom actions.