Responsibilities
- Develop and maintain C#/.NET components for real-time voice, video, and data
- Implement new features within existing communication services
- Work with SIP signalling, session handling, and network communication
- Build secure, low-latency, highly reliable services
- Collaborate with distributed Agile teams
- 60–70% hands-on development
Requirements
- 3+ years of experience with C# / .NET (Framework and Core)
- Strong experience in asynchronous and network programming
- Hands-on experience with ASP.NET, WebAPI, SignalR, and WCF
- Experience with Telecom / radio interfaces (3GPP)
- Solid understanding of SIP protocols; exposure to RTP / RTCP
- Experience with real-time voice/video systems
- Experience working with XML (XSD) and structured data formats
- Good engineering fundamentals: OOP, SOLID, CI/CD, Git, Agile
- Basic SQL database knowledge
Nice to have
- Experience with Atos or Mitel solutions
- ASP.NET web application experience