We are looking for a talented .Net Developer with 3+ years of programming background to join a small but established, product-focused team that builds a mobile-first platform that bridges digital and physical technologies. JOB REQUIREMENTS:Must have:3+ years of commercial experience in cross-platform mobile development using C# / .NETSolid understanding of mobile app architecture patterns (MVVM, Clean Architecture)Experience integrating mobile apps with RESTful APIs and real-time communication protocolsExperience working with IoT devices or hardware communication (Bluetooth, BLE, or similar protocols)Understanding of device pairing, state synchronisation, and hardware lifecycle management within mobile applicationsUnderstanding of SOLID and OOP principlesEnglish — at least Intermediate+Nice to have:Experience with payment or booking flow integrationsExperience with push notifications and background services on mobileExperience with managing Apple Certificates, Identifiers and ProfileFamiliarity with publishing and maintaining apps on App Store and/or Google PlayKEY RESPONSIBILITIES:Adding new features to an existing solutionFixing occasional bugs and supporting usersCollaborating with the team and occasionally with the client (via email)Contributing to future solution architecturePROJECTOur client is an American startup that provides its users with a fun shopping experience. The application is live, used daily across 17 + locations in the US, and communicates directly with electric vehicles on the ground — in real time. The architecture is clean and modern — no legacy baggage to wrestle with. Stage: This is a growing startup.Project team: 1 PM, 1 QA, 1 Mobile Developer, 1 UI/ UX Designer, 1 Back-end Developer Technical stack: C# / .NET (MAUI), Bluetooth Low Energy (BLE), RESTful APIs / JSON, Firebase , StripeWork schedule: Part-Time (40-60 hours per month), remoteINTERVIEW STAGES:Call with recruiterTechnical interview with recruiter and Senior Mobile developerRecruiter — Halyna VoronaВідгукнутись на вакансію