Senior Mendix Developer

Overview

Senior Mendix Developer is responsible for designing, developing, and maintaining high-quality Mendix applications that align with business objectives and software development standards. This role combines strong technical expertise in Mendix with the ability to guide junior developers, collaborate with stakeholders, and drive best practices across the low-code application lifecycle.

• Design, build, and deploy Mendix applications using best-practice architecture and development patterns.
• Translate business requirements into scalable, maintainable, and high-quality Mendix solutions.
• Develop complex domain models, microflows, nanoflows, workflows, integrations, and UI components.
• Build custom components using Java actions written per Java best practices and company conventions.
• Design and implement robust Mendix security models (user roles, module roles, entity access, page access, microflow access) strictly adhering to the principle of least privilege and Mendix security best practices.
• Ensure application performance, scalability, reliability, and compliance with enterprise performance standards.
• Conduct thorough code reviews to enforce quality, consistency, and maintainability.
• Implement robust auditing, logging, and monitoring mechanisms while championing true Dev Ops, Biz Dev Ops , and Sec Dev Ops  principles throughout the application lifecycle.
• Build productized modules that are reusable in other apps and projects.
• Design and deliver robust Mendix mobile apps with emphasis on reliable offline synchronization, high performance, secure local data handling, custom native functionality, and streamlined iOS/Android build & deployment processes.

• Integrate Mendix applications with external systems via REST, SOAP, OData, Kafka, databases, identity providers (OIDC, Azure AD), etc.
• Design highly modular and reusable components (modules, microflows, nanoflows, snippets, document templates).
• Leverage Mendix Building Blocks.
• Collaborate with enterprise architects, infrastructure teams, and system owners to align solutions with the broader IT landscape.
• Lead technical discussions with external teams on security, network, and infrastructure topics.
• Engage in detailed technical discussions regarding published/consumed APIs (endpoints, versioning, authentication, rate limiting).
• Design, document, and publish APIs following REST/SOAP best practices.
• Maintain strong documentation discipline: clean/readable code, comprehensive in-app documentation, and complete handover/technical delivery documents (LLD, API documentation, etc.) for clients.

• Mentor and coach junior and intermediate-level Mendix developers on best practices and advanced techniques.
• Lead technical discussions, solution-design workshops, sprint planning, and refinement sessions.
• Work closely with product owners, business analysts, and stakeholders to clarify requirements, refine user stories, and define acceptance criteria.
• Promote and enforce Mendix development best practices and reusable components.
• Provide accurate effort estimation for tasks, user stories, enhancements, and bug resolutions.

• Mendix Advanced or Expert certification (Expert strongly preferred).
• 3+ years of experience developing Mendix applications.
• Delivered Mendix applications into production (at least one complex application).
• Expert-level knowledge of domain modeling, microflows, nanoflows, security model, Java actions, JavaScript actions and Mendix best practices.
• Experience with Git-based development, CI/CD pipelines, and automated deployments.
• Strong experience with REST/SOAP web services, API design and documentation and API best practices.
• Proficient in leveraging AI tools (Copilot, Grok, ChatGPT, Maia) to accelerate development, debugging, documentation, design, and professional client/stakeholder communication.
• Proven ability to design and maintain comprehensive documentation (API, Low Level Design, etc.).
• Proficient in Microsoft Word and Excel for documentation and reporting purposes.
• Strong Java and JavaScript proficiency for custom actions, debugging complex logic, and performance…