Principal QA Engineer- Layer2/Layer3 Testing- Python Automation

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 testingBuild and maintain automation frameworks using Python and GolangPerform manual testing for new features, exploratory validation, and edge-case scenariosDevelop end-to-end solution validation, including interoperability and system-level testingAutomate regression, functional, and performance test suitesTroubleshoot and debug issues across network, system, and application layersCollaborate with engineering, QA, and product teams to ensure high-quality releasesAnalyze logs, packet captures, and system behavior to identify root cause issuesSupport 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/IPExperience in 5G technologies (Core, RAN, or transport network validation)Hands-on experience with:Test automation frameworksLinux systems and scriptingProficiency 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 SDNFamiliarity with test frameworks (pytest, Robot Framework, custom frameworks)Understanding of telecom standards and 5G architecture .