Senior Mendix Developer

Experience Required: 8+ Years (including 4+ years on Mendix)

Platform: Mendix low-code (web and native mobile), hosted on Microsoft Azure; integration through an enterprise service bus (webMethods)

Focus: Technical leadership across web, native mobile, integration and DevOps; complex workflows, business rules and integrations

Location: Onsite at the Client location in Dubai, UAE

Note: Immediate joiners preferred

Project Description

We're building a delivery team for a large, multi-phase enterprise Mendix programme and are looking for a Senior Mendix Developer to lead the technical build as a key member of the team.

Role summary

We are looking for a Senior Mendix Developer to act as Technical Lead for a large, multi-phase enterprise Mendix programme, building the most complex processes and integrations and leading a hybrid onsite/offsite team of Mendix, mobile, integration and DevOps engineers.

Key responsibilities

• Lead the day-to-day technical build and act as the technical point of contact for the development, mobile, integration and DevOps team.
• Take over an existing Mendix application built by another team and extend it rather than rebuild it.
• Build the most complex processes, including multi-step approval workflows with send-back, SLA timers and escalation, calculation and rules engines, and financial postings.
• Guide the build of shared components: request handling, configurable rules, notifications, document generation, schedulers, reports and KPI dashboards.
• Guide the Mendix native mobile build (iOS and Android), including offline drafts, secure storage, biometric login, push notifications and in-app payments.
• Lead the Mendix side of all integrations with the Integration Developer: REST/SOAP contracts, error handling, retries, idempotency, exception queues and reconciliation.
• Integrate with document management, digital identity and e-signature, payment gateway, finance/ERP, banking, CRM and government systems through the ESB.
• Work with the DevOps Engineer on CI/CD for Mendix web and native mobile builds, environment promotion and releases in waves.
• Set development standards, run code reviews, estimate work and track progress through each wave and tollgate.
• Support SIT, performance and security testing, UAT, go-live and hypercare.
• Mentor developers onsite and offsite, and hand over documentation to the client's support team.

Key requirements

• Mendix Advanced certification (state certificate ID).
• 4+ years of hands-on Mendix: workflows, microflows, nanoflows, domain modelling, security and performance tuning.
• REST (JSON) and SOAP (XML) integration in Mendix, including published REST/OData services and import/export mappings.
• API authentication (OAuth 2.0, OIDC, API keys, certificates) and integration through an ESB / middleware layer.
• Reliable integration patterns: error handling, retries, idempotency, callbacks / webhooks, batch / file exchange, logging and reconciliation.
• Mendix native mobile (iOS and Android): offline-first design, device features and mobile security (working knowledge or better).
• Microsoft Azure, Git, and CI/CD for Mendix web and native mobile builds (working knowledge or better).
• Arabic / English multilingual applications with full RTL.
• Experience leading or mentoring a development team.

Advantage

• Mendix Expert certification.
• webMethods or a similar ESB (e.g. MuleSoft, TIBCO, Azure Integration Services).
• IBM FileNet or other enterprise document management integration.
• UAE Pass or other national digital identity and e-signature integration.
• Payment gateway integration (card, Apple Pay, Samsung Pay).
• Government or regulated-sector delivery.
• Financial, endowment, asset or case-management systems.
• Arabic language skills.
• Experience working in the Middle East.