Senior Mendix Developer 12 Months Contract

Belmont Lavan; Amsterdam; On-site; EUR 90,000 - 120,000; Full time

Job summary

Belmont Lavan seeks an experienced Mendix developer to design and deliver enterprise Mendix solutions in Amsterdam. You will build scalable domain models with strong data security and integrate Mendix with Teamcenter or similar enterprise systems.

The role emphasizes automated testing, CI/CD, and deployment in cloud/container hosting environments. Agile, SAFe–aligned delivery and strong collaboration with stakeholders are required.

Qualifications

• 8-10 years of Mendix development experience
• Active Mendix Expert Certification
• Experience with Teamcenter PLM or similar enterprise systems
• Strong domain modelling and data security focus
• Automation testing experience (ATS, unit/API)
• CI/CD and cloud/container deployment
• Experience with SAFe is a plus

Responsibilities

• Deliver enterprise Mendix solutions with high performance and security
• Design scalable Mendix domain models ensuring data integrity
• Integrate Mendix apps with PLM/ERP/MES systems (Teamcenter preferred)
• Implement automated testing frameworks and CI/CD pipelines
• Lead deployment in cloud/container hosting environments
• Collaborate with cross-functional teams within SAFe framework

Skills

Mendix development

Enterprise system integration

Application architecture & domain Mod

Security & performance

Automated testing

Deployment & release management

Cloud & container technologies

Agile delivery & SAFe

Enterprise delivery communication

Tools

Siemens Teamcenter

Job description

• Mendix Development: 8-10 years of hands-on experience in Mendix application development, with a proven track record of delivering enterprise-grade Mendix solutions. Candidates must hold an active Mendix Expert Certification
• Enterprise System Integration: Strong experience designing, developing, and deploying Mendix applications integrated with Siemens Teamcenter or comparable enterprise platforms such as PLM, ERP, or MES systems. Hands-on experience with Siemens Teamcenter PLM is highly desirable
• Application Architecture & Domain Modelling: Expertise in designing high-performance, normalized, and scalable Mendix domain models, with a strong focus on data integrity, security, performance optimization, maintainability, and enterprise scalability
• Security & Performance: Strong understanding of Mendix security architecture, including role-based access, entity-level security, data access controls, and best practices for optimizing application and database performance
• Automated Testing: Hands-on experience implementing and maintaining automated testing frameworks, including Mendix Application Test Suite (ATS), unit testing, automated regression testing, and/or API testing
• Deployment & Release Management: Solid understanding of CI/CD pipelines, deployment processes, environment management, version control, and release management for Mendix applications. Experience deploying applications in cloud-based and/or containerized Mendix hosting environments is required
• Cloud & Container Technologies: Practical experience working with modern cloud or containerized environments and understanding the deployment, configuration, monitoring, and maintenance of enterprise Mendix applications
• Agile Delivery: Proven experience working within Agile enterprise delivery frameworks, collaborating effectively with cross-functional teams, product owners, architects, and business stakeholders. Experience working within SAFe (Scaled Agile Framework) environments is preferred
• Enterprise Delivery Experience: Strong communication, problem-solving, and stakeholder-management skills, with the ability to work independently on complex enterprise applications and contribute to technical design and delivery decisions

Requirements

8-10 years of hands-of Mendix application development, holding an active Mendix Expert Certification.

Proven track record of building and deploying Mendix applications integrated with Siemens Teamcenter or similar enterprise systems (PLM/ERP/MES). Teamcenter PLM knowledge is a strong advantage.

Expertise in designing performant, normalized, and highly efficient domain models with a strong focus on data security , performance optimization, and enterprise scalability.

Experience implementing automated testing frameworks (e.g., Mendix Application Test Suite / ATS, unit testing, or automated API testing).

Solid understanding of deployment pipelines, release management, in containerized/cloud Mendix hosting environments.

Practical experience working within Agile enterprise frameworks, preferably SAFe (Scaled Agile Framework).