MENDIX DEVELOPER

About the Position

MENDIX DEVELOPER

Publication Date: Aug 12, 2026

Ref. No: 550315

Location: Amstelveen, NL

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About the Role

Atos Group is a global player in digital transformation with approximately 67,000 employees and an annual turnover of around €10 billion. Atos operates in 61 countries under two brands: Atos for services and Eviden for products. In Europe, Atos is the market leader in cybersecurity, cloud, and high-performance computing. Atos SE is listed on Euronext Paris.

Atos helps organizations design the future of digital information provision, with attention to security, sustainability, and technological innovation.

We are looking for a Medior–Senior Mendix Developer for our teams. You have several years of experience with Mendix and want to work on stable, scalable applications within a professional and multidisciplinary environment.

In this role, you will work on enterprise Mendix applications for various clients. You will have the opportunity to think technically, take responsibility within projects, and develop towards a senior level.

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Responsibilities

• Develop, extend, and maintain Mendix applications in production environments
• Work on integrations with other systems via REST and SOAP
• Collaborate on application design, data models, and technical solutions
• Improve performance, stability, and maintainability
• Work with product owners, testers, UX designers, and other developers
• Participate in code reviews and knowledge sharing within the team
• (Pre) work with React or custom UI components when necessary

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Requirements

• 3 to 5 years of experience as a Mendix Developer
• Experience with Mendix projects in a team setting
• Mendix Advanced Developer certification
• Experience with REST and SOAP integrations
• Basic knowledge of performance, security, and deployment
• Experience with Agile/Scrum working
• Fluency in Dutch and English, both spoken and written

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Nice to Have

• Experience with larger or more complex Mendix environments
• Some experience with Mendix Cloud or CI/CD
• Basic knowledge of HTML, CSS, JavaScript, and/or React
• Experience with enterprise or legacy systems

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We Offer

• A market-competitive salary with additional employment conditions
• 29 vacation days, with the possibility to build up extra days
• Holiday pay (8%) and an end-of-year bonus
• Flexible working hours and opportunities for hybrid working
• Pension scheme and income protection
• A flexible benefits budget
• Access to training and certification platforms
• Career growth opportunities to senior roles within Atos or Eviden, in the Netherlands or internationally

At Atos, diversity and inclusion are embedded in our DNA. Read more about our commitment to a fair working environment for everyone.

Atos is a recognized leader in its industry in terms of environment, society, and governance. Read more about our CSR commitment.

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Choose your future. Choose Atos.