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

Extreme Networks; Bengaluru; On-site; INR 4,000,000 - 7,000,000; Full time

Job summary

Extreme Networks is seeking a highly skilled Solution Test Engineer to validate end-to-end network solutions in data center and 5G environments. You will design tests for L2/L3, IP Fabric, EVPN/VXLAN, and build automation in Python and Go.

Collaboration with engineering and product teams will ensure robust, high-quality releases. Strong scripting, Linux, and packet analysis skills are required, with experience in CI/CD and container environments (Kubernetes, Docker) a plus.

Qualifications

• Experience designing test plans and test cases for complex networking solutions (L2/L3, IP Fabric, EVPN/VXLAN).
• Hands-on validation of 5G and data center architectures (integration, scalability, performance).
• Build and maintain automation frameworks using Python and Golang; perform manual testing when needed.

Responsibilities

• Design, develop, and execute comprehensive test plans and test cases for networking solutions.
• Validate 5G and data center architectures for performance and scalability.
• Build and maintain automation frameworks using Python and Go; support CI/CD pipelines.

Skills

Python

Golang

Data center networking

BGP

EVPN/VXLAN

TCP/IP

5G validation

Test automation

Linux scripting

Wireshark/tcpdump

Tools

CI/CD (Jenkins/GitLab)

Kubernetes

Docker

Packet analysis tools

Job 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.

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