Senior Mendix Developer

SSC Egypt

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

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 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 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.