Sr. Network Protocol Test Engineer (Python)

EgyBell is hiring a Test Engineer for a multinational telecommunications company.

This role requires a strong background in network protocol testing, packet-level analysis, and Python-based test automation framework development. The ideal candidate will have hands-on experience testing network traffic, validate protocol behavior, and build automated test frameworks for functional, regression, and performance testing.

Key requirements include Python test automation framework development, Wireshark/tcpreplay, Napatech or comparable SmartNIC hardware, Bamboo, Docker, Ansible/Terraform, and C/C++ codebase understanding. Experience with telecom/network protocols is also relevant.

What you will need

• Advanced Python scripting - building and maintaining test automation frameworks (not just writing scripts): reusable test libraries, fixtures, and CI-integrated suites.
• Ability to design automated test frameworks that validate protocol behavior, packet-processing pipelines, and service/API boundaries end-to-end.
• Experience with traffic generation/replay tools (e.g. tcpreplay) and packet capture/analysis tools (Wireshark) for functional and regression testing of protocol state machines.
• Load and performance testing experience - benchmarking throughput/latency under sustained traffic.
• Experience with Napatech (or comparable SmartNIC) capture hardware for generating and validating high-speed test traffic.
• CI/CD experience with Atlassian Bamboo - integrating automated suites into build pipelines, triggering/monitoring runs, reporting results.
• Docker container experience - standing up and debugging test environments inside containers.
• Infrastructure-as-code exposure (Ansible/Terraform) - provisioning repeatable RHEL test environments.
• Test case design and defect tracking (Jira) - clear, reproducible bug reports and maintained regression suites.
• Ability to translate technical specifications and requirements into test plans that catch edge cases before release.
• Uses AI assistants (Claude, Copilot, or equivalent) for test case generation, test script authoring, and documentation - with review discipline.
• Fluent English communication skills, both written and spoken.
• 6 to 8 years of experience as a Test Engineer or in a similar position

Preferred qualifications:

• Exposure to telecom/network protocol domain work and experience with mobile core network signaling protocols across 2G/3G/4G (SS7/MAP, Diameter, GTP-C/GTP-U).
• Enough C/C++ fluency to read the codebase under test and understanding what the code is doing.
• Familiarity with profiling tools (perf, valgrind) to help distinguish functional bugs from performance regressions.
• Prior experience testing network probes, DPI systems, or similar telecom infrastructure.

Who you are:

• Meticulous and detail oriented.
• Strong ownership and accountability - follows through without being chased.
• Collaborative team player who communicates clearly and effectively.
• Committed to quality, reliability, and continuous improvement.
• Self-motivated and proactive.