Mendix Expert - 6 to 12 Months Contract

Belmont Lavan Ltd; Amsterdam; On-site; EUR 90,000 - 130,000; Full time

Job summary

Belmont Lavan Ltd is seeking an experienced Mendix Developer to deliver enterprise Mendix solutions in Amsterdam. You will design high-performance domain models, implement secure architectures, and lead automated testing and release processes.

Ideal candidates have 8–10 years of Mendix development, active Mendix Expert Certification, and hands-on experience with Teamcenter PLM integrated Mendix applications, SAFe Agile delivery, and cloud hosting environments.

Qualifications

• 8–10 years of Mendix development experience in enterprise projects.
• Active Mendix Expert Certification required.
• Experience integrating Mendix with Teamcenter or similar PLM/ERP/MES systems.

Responsibilities

• Design and develop Mendix applications for enterprise environments.
• Architect scalable Mendix domain models with focus on data integrity and security.
• Lead automated testing, including ATS and API testing.
• Define and manage CI/CD pipelines and deployment workflows.
• Collaborate with cross-functional teams in Agile/SAFe environments.

Skills

Mendix Development

Enterprise System Integration

Domain Modelling & Architecture

Security & Performance

Automated Testing

Agile Delivery (SAFe preferred)

Stakeholder Communication

Education

Mendix Expert Certification

Tools

Siemens Teamcenter

Mendix ATS / Testing

CI/CD Tooling

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 anactive Mendix Expert Certification.


• Enterprise System Integration:Strong experience designing, developing, and deploying Mendix applications integrated withSiemens Teamcenteror comparable enterprise platforms such asPLM, ERP, or MES systems. Hands-on experience withSiemens Teamcenter PLMis highly desirable.


• Application Architecture & Domain Modelling:Expertise in designinghigh-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 maintainingautomated testing frameworks, including Mendix Application Test Suite (ATS), unit testing, automated regression testing, and/or API testing.


• Deployment & Release Management:Solid understanding ofCI/CD pipelines, deployment processes, environment management, version control, and release managementfor Mendix applications. Experience deploying applications incloud-based and/or containerized Mendix hosting environmentsis 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 withinAgile enterprise delivery frameworks, collaborating effectively with cross-functional teams, product owners, architects, and business stakeholders. Experience working withinSAFe (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.

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).