Principal QA Software Engineer

About the role

Principal QA Software Engineer in Bangalore validating end-to-end solutions across modern data center and 5G networking environments. The role combines manual and automated testing to ensure high-quality delivery of IP fabric-based solutions, designing test plans for L2/L3, EVPN/VXLAN, and 5G architectures while building automation frameworks in Python and Golang. Work model is hybrid.

What you’ll do

• 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
• Analyze logs, packet captures, and system behavior to identify root cause issues

What you’ll bring

• 13-20 years of experience in software testing or QA engineering
• Strong programming skills in Python (must-have)
• Golang proficiency (preferred/strong plus)
• Solid understanding of data center networking (Leaf-Spine, IP Fabric, Clos architectures)
• Knowledge of protocols: BGP, EVPN, VXLAN, TCP/IP
• Experience in 5G technologies (Core, RAN, or transport network validation)
• Hands-on experience with test automation frameworks and Linux systems/scripting
• Proficiency in packet analysis tools (Wireshark, tcpdump) and debugging distributed systems

Nice to have

• 13-20 years of experience in software testing or QA engineering
• Strong programming skills in Python (must-have)
• Golang proficiency (preferred/strong plus)
• Solid understanding of data center networking (Leaf-Spine, IP Fabric, Clos architectures)
• Knowledge of protocols: BGP, EVPN, VXLAN, TCP/IP
• Experience in 5G technologies (Core, RAN, or transport network validation)
• Hands-on experience with test automation frameworks and Linux systems/scripting
• Proficiency in packet analysis tools (Wireshark, tcpdump) and debugging distributed systems

Skills