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PRINCIPAL QA SW ENGINEER 10379- Layer2/Layer3 Protocol Testing- Python |Data Center Networking

Extreme Networks

Before you apply

Role details

The practical picture
Employment
Full-time
Role signal brief

The role, at a glance

Extracted from the source posting · 95% confidence

Principal QA Software Engineer role at Extreme Networks focusing on Layer 2/Layer 3 protocol testing for data center and 5G networking. The position requires 13-20 years of experience and involves building test automation frameworks in Python to validate IP fabric-based solutions.

What you need

  • Python
  • Data center networking (Leaf-Spine, IP Fabric, Clos architectures)
  • Protocols: BGP, EVPN, VXLAN, TCP/IP
  • 5G technologies (Core, RAN, or transport network validation)
  • Test automation frameworks
  • Linux systems and scripting

What you will own

  • Design, develop, and execute test plans and test cases for complex networking solutions (L2/L3, IP Fabric, EVPN/VXLAN).
  • Validate 5G and data center architectures, including integration, scalability, and performance testing.
  • Build and maintain automation frameworks using Python and Golang.
  • Perform manual testing for new features, exploratory validation, and edge-case scenarios.
  • Automate regression, functional, and performance test suites.
  • Troubleshoot and debug issues across network, system, and application layers.
Core skills
PythonTest AutomationL2/L3 Protocol TestingData Center NetworkingBGPEVPNVXLAN5G NetworksLinuxWireshark
Internal freshness window ends Oct 22, 2026
View source evidence
  • location “Job location: hybrid,Bangalore”
  • must_have “Python (must-have)”
  • must_have “Solid understanding of: Data center networking”
pythontest automationl2/l3 protocol testingdata center networking
Role brief

Role Overview:

 

Experience: 13-20 Years 

Role: PRINCIPAL QA SW ENGINEER 

 

We are seeking a highly skilled Solution Test Engineer to validate end-to-end solutions across modern data center and 5G networking environments. This role combines manual and automated testing, ensuring high-quality delivery of IP fabric-based solutions through robust validation frameworks developed in Python and Go (Golang).

 

Key Responsibilities

  • Design, develop, and execute test plans and test cases for complex networking solutions (L2/L3, IP Fabric, EVPN/VXLAN)
  • Validate 5G and data center architectures, including integration, scalability, and performance testing
  • Build and maintain automation frameworks using Python and Golang
  • Perform manual testing for new features, exploratory validation, and edge-case scenarios
  • Develop end-to-end solution validation, including interoperability and system-level testing
  • Automate regression, functional, and performance test suites
  • Troubleshoot and debug issues across network, system, and application layers
  • Collaborate with engineering, QA, and product teams to ensure high-quality releases
  • Analyze logs, packet captures, and system behavior to identify root cause issues
  • Support CI/CD pipelines and continuous testing strategy.
  •  

Required Skills

Technical

  • Strong programming skills in:
    • Python (must-have)
    • Golang (preferred / strong plus)
  • Solid understanding of:
    • Data center networking (Leaf-Spine, IP Fabric, Clos architectures)
    • Protocols: BGP, EVPN, VXLAN, TCP/IP
  • Experience in 5G technologies (Core, RAN, or transport network validation)
  • Hands-on experience with:
    • Test automation frameworks
    • Linux systems and scripting
  • Proficiency in:
    • Packet analysis tools (Wireshark, tcpdump)
    • Debugging distributed systems and network issues.

Preferred Qualifications

  • Experience with CI/CD pipelines (Jenkins, GitLab CI, etc.)
  • Exposure to cloud-native and container environments (Kubernetes, Docker)
  • Knowledge of network virtualization and SDN
  • Familiarity with test frameworks (pytest, Robot Framework, custom frameworks)
  • Understanding of telecom standards and 5G architecture