[Responsibilities] Phase 1 – ERP / Accounting Develop and enhance Accounting / ERP systems Work with C# / .NET, ASP.NET Core, React Handle finance-related business logic and system optimization Phase 2 – Product Development (IoT Platform) Build scalable real-time data platforms for IoT & smart buildings Develop backend services (.NET, WebSocket, APIs) Build modern frontend applications (React, Typescript) Optimize system performance and scalability Tech Stack Backend: .NET, C#, ASP.NET Core, EF Core Frontend: React, Typescript Client App: WinForms / WPF / MAUI Database: MariaDB Others: WebSocket, Linux, IoT integration [Requirements] Requirements 7+ years of experience in software development Strong in C# / .NET and at least one frontend framework (React preferred) Experience with ASP.NET Core and RESTful APIs Experience with databases and ORM (EF Core or equivalent) Experience in Accounting / ERP / Finance systems is a strong plus Strong problem-solving skills and ability to work independently Nice to Have Experience with real-time systems, WebSocket Knowledge of Microservices, Kafka, gRPC Exposure to IoT systems, Linux environments Familiarity with MVVM, WPF / MAUI