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Senior Software Engineer - C#/.Net and C++

Rollout IT | Budapest, Hungary | Posted June 03, 2026

Position Overview


We are looking for a Senior Software Engineer with strong C#/.NET backend services who is also open to working with C++ / Linux. 
You will join a mission-critical communication technology environment, working on a core system that supports telephony, VoIP and secure digital services across regulated European markets.

This role is ideal for someone who enjoys complex existing systems, backend development, long-term technical ownership, and is comfortable working across both C#/.NET and C++ domains. Your main stack would be C#/.NET, 20% of the time C++. Therefore, we are primarily looking for a strong .NET engineer who also has solid C++ knowledge or is comfortable contributing to C++ when needed.

Responsibilities

  • Work on the evolution and stabilization of a C++ / Linux-based Core Communication System
  • Gradually learn the...

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