.NET MAUI Mobile App Developer, APIs Specialist

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Xtreme Productivity

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Non-profit • Productivity • IT Support

Xtreme Productivity is a company that specializes in providing tailored digital solutions and IT support exclusively for the non-profit sector. They offer a range of services including cloud technology, CRM systems, telephony, and hardware procurement, with a strong emphasis on streamlining financial processes and improving productivity for their clients. Xtreme Productivity focuses on enhancing technology and financial management for non-profits, ensuring secure data handling, compliance, and seamless integrations with platforms like Dynamics 365, XERO, and Power BI. Their mission is to maximize the impact of non-profits by providing cost-effective, reliable tech solutions and expert financial services.

11 - 50 employees

🤝 Non-profit

⚡ Productivity

📋 Description

• Design, build, and ship cross‑platform mobile apps with .NET MAUI (C#, .NET) • Lead API‑centric development: REST/GraphQL design, documentation (OpenAPI/Swagger), versioning, and performance tuning • Implement secure auth flows (OAuth2/OpenID Connect), handle tokens/refresh, and protect sensitive data • Integrate with internal and third‑party services (e.g., Azure API Management, Functions, microservices) • Set up automated build/release pipelines (Azure DevOps/GitHub Actions) and app distribution (App Center/TestFlight/Play Console) • Write maintainable, well‑tested code (unit, integration, and UI tests) and perform code reviews • Collaborate closely with product, design, and stakeholders to scope, deliver, and iterate quickly • Monitor app health (telemetry, crash analytics) and drive continuous improvement

🎯 Requirements

• 5 years of experience in mobile app development • Strong commercial experience with .NET MAUI (or Xamarin.Forms with proven MAUI migration) • Deep experience building and consuming APIs end‑to‑end (design, auth, docs, scaling) • Solid command of C#, .NET 8, async programming, MVVM, dependency injection • Practical security know‑how (secure storage, cert pinning, secret management) • CI/CD fluency and Git best practices; comfort with Azure cloud services • Tooling you know well: Postman/Insomnia, Swagger, Fiddler/Charles, App Center • Clear communication, stakeholder engagement, and a delivery mindset • Nice to have Flutter/Dart experience (cross‑platform UI, state management, plugin development) • Mobile performance optimisation, accessibility, and localisation • Store operations (App Store/Google Play), release management, and compliance • Experience with push notifications, offline sync, and app data caching

🏖️ Benefits

• Competitive compensation and performance-based incentives • Flexible work arrangements • Opportunities to work with purpose-driven clients • Professional development and training support • A collaborative and inclusive work environment