Rebaca - C++ Developer

Role : C++ Developer - LTE EPC /5G Core

Experience : 3+ years

Location : Kolkata (preferred) | Remote flexibility possible

Preferred Notice : Max 30 days

About the Role :

Were building a 4G/5G Test Tool that helps validate and simulate complex Core Network scenarios. As a C++ Developer, youll work on protocol-level features and bring accuracy, performance, and reliability to the product. This is a hands-on engineering role where youll directly shape how operators and vendors test their 5G Core networks.

What Youll Do :

- Design and implement new features in C++ for the test tool.

- Work on 5G Core protocols (AMF, SMF, UPF, NRF, PCF) and enhance simulation flows.

- Handle protocol message exchange, call/session handling, and validation logic.

- Debug and optimise multi-threaded, distributed systems.

- Collaborate with QA and product teams to strengthen test coverage and accuracy.

What Were Looking For :

- 3 - 4 years of hands-on experience in C++ development.

- Strong grasp of DSA, multithreading, and socket programming.

- Good understanding of 5G Core protocols.

- Solid networking knowledge (TCP/IP, SCTP, Diameter, HTTP/2, GTP).

- Experience in protocol stack development or test tools.

Nice to Have

- Familiarity with 3GPP standards.

- Experience in Docker/Kubernetes or cloud-native environments.

- Exposure to other telecom testing tools.