Mendix Developer

Position: Mendix Developer

Nexttec Technology is a leading technology outsourcing company that provides innovative solutions to businesses of all sizes. We are currently seeking a highly skilled Mendix Developer to join our client.

As a Mendix Developer, you will play a key role in the development and implementation of Mendix applications for our clients. You will work closely with our project managers, designers, and other developers to deliver high-quality and efficient solutions that meet our clients' needs.

Key Responsibilities:

Application Development & Architecture
- 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 as per Java best practices & 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 DevOps, BizDevOps, and SecDevOps 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
Integration & System Design
- 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)
- Strong experience working with 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
- Strong documentation discipline: clean/readable code, comprehensive in-app documentation, and complete handover/technical delivery documents (e.g. LLD, API documentation..etc) for clients
Leadership & Collaboration
- 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
Quality Assurance & Lifecycle Management
- Ensure proper implementation of CI/CD pipelines, automated deployments, and branching strategies in Git
- Perform systematic unit testing, integration testing, and end-to-end testing; conduct full System Integration Testing (SIT)
- Troubleshoot and resolve complex, tricky bugs—including integration,
performance, and concurrency issues
- Oversee application lifecycle management: branching strategies, versioning, environment configuration (dev/test/acc/prod), deployment processes, and rollback procedures

Required Skills & Qualifications
Technical Skills
- Mendix Advanced or Expert certification (Expert strongly preferred)
- 3+ years of experience developing Mendix applications
- Delivered Mendix applications into production (at least 1 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 Designetc)
- Proficient in Microsoft Word and Excel for documentation and reporting
purposes
- Strong Java and JavaScript proficiency for custom actions, debugging complex logic, and performance optimization
- Advanced SQL skills including writing and optimizing complex queries, joins, and indexing
- Hands-on experience with On-Premise environments and cloud environments (Mendix Cloud, Azure, or OpenShift environments)
- Solid understanding of Mendix architecture, integrations, APIs, and security concepts
- Solid understanding of networking, certificates, firewalls, and proxy
configurations in enterprise contexts
- Performed multiple Mendix Major upgrades
- Strong expertise in Mendix Mobile: offline/sync logic, performance optimization, security, secure mobile storage/encryption, and managing app builds, signing, and store distribution.
Soft Skills
- Excellent analytical and problem-solving skills – particularly for complex integration and performance issues under tight deadlines – while remaining calm and positive during high-pressure situations or crises
- Excellent verbal and written communication skills; ability to write clear, professional client emails and documentation and conduct client-facing discussions
- Strong stakeholder-management and facilitation skills for workshops and requirement sessions
- Thrives in agile/scaled-agile and waterfall environments; adept at managing scope, bridging customer expectations, and enforcing process in structured deliveries
- Highly pro-active: identifies blockers, proposes solutions, and drives initiatives when progress slows down or new opportunities arise
- Proven ability to work independently while leading technical workstreams
Preferred Experience
- Previous experience leading Mendix development teams
- Experience with Mendix tools such as QSM
- Hands-on experience with containerization (Docker, Kubernetes) and private cloud Mendix deployments
- Participation in Mendix Capture the Flag (CTF) events or proven ability to demonstrate Mendix security vulnerability concepts.

We Offer

- Competitive salary and benefits package

- Opportunity to work on a variety of projects for clients in different industries

- Collaborative and dynamic work environment

- Professional development and training opportunities

- Growth potential within the company

If you are a highly motivated and skilled Mendix Developer looking to join a dynamic and growing team, we want to hear from you! Apply now and take the next step in your career with Nexttec Technology.