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Lead Mobile Application Engineer (.NET MAUI)

Mobile Full-time Freelance Costa Rica

Job details

Not specified Salary
Costa Rica Eligibility
Lead Experience
Full-time Employment

About this role

Role overview Provide technical leadership for a cross-platform mobile application used by patients and clinical research sites. The role combines hands-on engineering with ownership of architecture, engineering standards, and delivery practices, helping create reliable mobile experiences and data collection across clinical trials.

Responsibilities - Define and guide architecture for scalable, maintainable mobile apps built for Android and iOS. - Develop core features using C#, .NET, and XAML, including complex, performance-sensitive, and platform-specific components. - Work with UX and UI teams to deliver responsive, accessible interfaces. - Integrate REST APIs, third-party SDKs, secure on-device storage, and offline synchronization. - Set coding standards; lead architecture and code reviews; address security, performance, and stability. - Own mobile delivery workflows, including CI/CD, build automation, versioning, signing, and app store releases. - Mentor engineers and partner with product, backend, QA, and other stakeholders to turn requirements into technical solutions.

Requirements - Bachelor’s degree in computer science, engineering, or a related field, or equivalent practical experience. - At least seven years of professional software development experience, including substantial mobile application work. - Track record delivering production Android and iOS applications. - Strong knowledge of MVVM, clean architecture, and modern mobile design patterns. - Proficiency in C#, .NET, and XAML, plus experience with a cross-platform or native mobile technology. - Experience integrating APIs and third-party services and using secure local storage. - Familiarity with mobile CI/CD and DevOps practices. - Demonstrated use of agentic AI coding tools in day-to-day development, along with experience making architecture decisions, reviewing code, and troubleshooting complex issues. - Strong communication and collaboration skills.

Nice to have - Experience with .NET MAUI or Xamarin.Forms. - Mobile development experience in regulated settings, healthcare, or clinical research.

Benefits and work setup The source describes the application’s use in global clinical trials but does not specify a work location, compensation, or benefits.

Skills detected in the listing

ReactReact NativeC#Requirements GatheringStakeholder Management
Detected Oct 22, 2026
Last verified Nov 4, 2026

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