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Extreme Networks

PRINCIPAL QA SW ENGINEER 10380- Layer2/Layer3 Protocol Testing- Python |Data Center Networking

Extreme Networks Bengaluru, Karnataka, India

Software Development · 1,001-5,000 employees

7 h ago
python Principal (10+ yrs) Full-time India
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About the role

Design, develop, and execute test plans for complex networking solutions including L2/L3 protocols and 5G architectures. Collaborate with engineering teams to automate regression and performance test suites while troubleshooting issues across network and system layers.

What they look for

Python Golang Data center networking L2/L3 protocols IP Fabric EVPN/VXLAN 5G technologies Test automation Linux Packet analysis Wireshark Tcpdump CI/CD Kubernetes Docker SDN

Requirements

Requires 13-20 years of experience with strong proficiency in Python and networking protocols like BGP, EVPN, and VXLAN. Candidates should have hands-on experience in test automation frameworks and debugging distributed systems.

Full description

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.

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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

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