100% Remote: Senior .NET MAUI Specialist (m/f/d) - C#/.NET, Mobile, REST/Microservices, Azure
nemensis AG
Ansprechpartner: Emese Éva Hackl
Düsseldorf, Deutschland
Anlagen- und MaschinenbauUser Experience (UX)APIsMicrosoft AzureC#Messaging Application Programming InterfaceMicrosoft Ui AutomationWindows Application Programming InterfaceXamarinMobile ServicesRemote Application PlatformModern UiRemote SupportBackendMobile TechnologieMicroservices
Beschreibung
For our client, a global client from the industrial sector, we are looking for a "Senior .NET MAUI Specialist" (m/f/d)
Project Description We are building and stabilizing the mobile provisioning toolchain for a global IoT platform serving field operations across 35+ countries. The platform enables field technicians to commission, configure, and connect equipment to cloud-based remote services. You will join a cross-functional product team working to improve reliability, performance, and user experience of the mobile application layer. This role is a MAUI specialist position first, with solid backend skills required when the situation demands it — expect to spend roughly 70% of your time in the mobile layer and 30% supporting backend integration work.
Engagement Details
- Start: As soon as possible / to be agreed
- Duration: 6 months from 01.10.2026 (option to extend by a further 6 months)
- Capacity: Full-time (100%)
- Location: Remote
- Note: Only nearshore candidates will be considered
Responsibilities:
Mobile (Primary Focus – ~70%)
- Own the app architecture, performance, and quality of the cross-platform mobile application built on .NET MAUI
- Drive UI/UX implementation for field-technician workflows
- Solve platform-specific issues across Android and iOS (rendering, lifecycle, permissions, device fragmentation)
- Implement and maintain a robust testing strategy for mobile: unit tests, UI tests, device-specific regression
- Optimize app startup time, memory footprint, and network resilience for field conditions
Backend (Secondary Focus – ~30%)
- Develop and integrate REST APIs and microservices (C#/.NET) that serve the mobile layer
- Support Azure cloud-native services integration (Functions, Service Bus, App Configuration)
Experience & Skills:
- 3+ years hands-on .NET MAUI development, with at least one shipped production application on both Android and iOS
- Deep understanding of MAUI architecture: dependency injection, Shell navigation, handlers/renderers, platform-specific code
- Strong C#/.NET backend skills — able to build and maintain APIs
- Test-Driven Development as a working habit: unit testing, integration testing, automated QA
- Practical experience with Azure (DevOps, Functions, or equivalent cloud-native services)
- Senior-level professional (5+ years in the .NET ecosystem)
- Comfortable owning technical decisions in a small, autonomous team
- Communicates proactively — flags risks early, proposes solutions, not just problems
Nice to Have:
- Background in industrial or field-service applications
- Experience with offline-first patterns, local storage, and sync mechanisms
- Familiarity with feature flags, remote configuration, and phased rollouts
- Experience with AI and agentic workflows
- Participation in CI/CD pipeline maintenance and DevOps activities
- Experience with Xamarin.Forms-to-MAUI migration