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Job Description
Top 3 Reasons To Join Us
The Job
We are looking for a skilled .NET Developer to build the Application Layer of a high-performance software solution running on Client/Edge devices (PC/Embedded).
Your primary role is to develop the System Logic using .NET 8 (or higher) to:
- Orchestrate the application workflow (Start/Stop engines, handle events).
- Integrate with Native C++ Libraries via Interop.
- Manage Multi-threaded operations efficiently on Linux & Windows.
- Communicate with the UI and handle basic Data Persistence.
RESPONSIBILITIES
- Core System Development (.NET 8+):
- Develop robust Console Applications / Background Services running on Windows and Linux using .NET 8+.
- Implement Multi-threading logic to handle simultaneous tasks (Data ingestion from Engine, UI updates, Logging) without freezing the application.
- Apply Asynchronous Programming (Async/Await) correctly to maximize system responsiveness.
- Ensure system stability: Implement "Watchdog" mechanisms, auto-recovery, and resource management (CPU/RAM).
- Native Integration (Interop):
- Use P/Invoke and Marshaling to call functions from existing Native Libraries (DLL/.so).
- Handle data conversion between Managed (.NET) and Unmanaged (C++) memory safely.
- UI Communication:
- Implement Real-time communication channels to push data to the Frontend UI.
- Work with SignalR (WebSockets), TCP/UDP Sockets, or IPC (Named Pipes/Unix Domain Sockets).
- Data Persistence (Experience Level):
- Implement local data storage using relational databases: SQLite.
- Use Entity Framework Core or Dapper to save logs and operational data (Deep database optimization is NOT required, just functional usage).
KEY REQUIREMENTS (MUST HAVE)
A. Modern .NET & System Skills (Top Priority):
- Tech Stack: Proficiency in C# with a focus on .NET 8 or higher.
- Strong understanding of Asynchronous Programming: You must strictly distinguish between CPU-bound (Task.Run) and I/O-bound (await) operations.
- Multi-threading competence:
- Ability to work with Synchronization (Lock, Monitor, Semaphore, Mutex).
- Ability to debug Race Conditions and Deadlocks.
- System Knowledge: Understanding of Process lifecycle, Memory Management, and how Services/Daemons work on an OS level.
B. Integration & Environment:
- Interop: Experience integrating C++ libraries (Native DLLs) into C# applications (P/Invoke).
- OS: Comfortable deploying and debugging .NET applications on both Windows and Linux.
C. Database:
- Experience with SQLite: Know how to perform basic CRUD operations using EF Core or SQL Client.
4. NICE TO HAVE (BIG PLUS)
- Windows UI Development: Experience building Desktop UIs using C# (WPF, WinForms, or WinUI).
- Elasticsearch / NoSQL: Hands-on experience with Elasticsearch (Index design, Query DSL) or MongoDB.
- Docker: Experience writing Dockerfile and docker-compose to containerize .NET 8 applications.
- Azure Cloud: Familiarity with Azure IoT Hub or Data Synchronization.
- C++ Literacy: Ability to read C++ header files (.h) to understand data structures for mapping (Coding in C++ is NOT required).
- Compensation & bonus: 13th & 14th salary, AIP bonus, Holidays, Tet, and Long year service …
- Social insurance, Health insurance, Unemployment insurance: by Social Insurance and Labor Law
- The regime of annual leave, company trip, and checkup examination
- Award for marriage, newborn
- We have AON insurance package for employee, spouse, and children every year
- You will be trained, learned & work with the best technical managers who help you improve various dev skills & career path
- You’ll love working in our dynamic environment employees, young & active
- We love sport activities, as marathon, football, swimming,...
- Working time: From Monday to Friday | 08:30-12:00 & 13:00-17.30
Benefits
- Compensation & bonus: 13th & 14th salary, AIP bonus, Holidays, Tet, and Long year service …
- Social insurance, Health insurance, Unemployment insurance: by Social Insurance and Labor Law
- The regime of annual leave, company trip, and checkup examination
- Award for marriage, newborn
- We have AON insurance package for employee, spouse, and children every year
- You will be trained, learned & work with the best technical managers who help you improve various dev skills & career path
- You’ll love working in our dynamic environment employees, young & active
- We love sport activities, as marathon, football, swimming,...
- Working time: From Monday to Friday | 08:30-12:00 & 13:00-17.30