Datacom Testing

2 days ago

Bengaluru, India Happiest Minds Technologies Full time

Role: Senior Engineer / Lead Engineer/ Architects Experience: 2 to 15 Years Location : Bangalore, Chennai, Hyderabad Role Summary We are looking for experienced Network Test Engineers with strong Python coding ability to join our dynamic team responsible for validating high-performance, enterprise-grade networking features. The ideal candidates will have strong domain knowledge in L2/L3 protocols, multicast routing, automation with Python, and test framework development. Engineers will be involved in validating features across routing, switching, virtualization, and performance scenarios in both traditional networking stacks and containerized environments. Key Responsibilities Design and execute comprehensive test plans and automation scripts for L2/L3 networking features from scratch Develop and enhance test automation frameworks using Python, integrating with tools such as PyATS, Pytest (hands-on coding is mandatory) Validate protocols and features across L2 and L3 protocols (Mandatory) Perform validation across different layers of a Core / Edge router and Data Center switch Execute system-level, regression, performance, and stress testing for high-throughput networking platforms. Worked on Cisco NxOS, IOS, XR, XE or equivalent NOS Ability to validate merchant ASIC-based switches, or platforms like Exablaze 3550. Validate containerized network solutions using Docker and Linux OS Collaborate with developers, support, and system architects to debug and resolve complex networking issues Participate in agile ceremonies, daily scrums, and sprint reviews for feature testing and delivery Skills and Qualifications: 2–15 years of experience in network testing and automation. Strong hands-on experience in Python programming (Mandatory) Proficiency in test automation tools and frameworks: Pytest, Robot Framework. Solid understanding and testing experience with: Layer 2: VLAN, LACP, vPC, Spanning Tree (STP), VXLAN, MacSec Layer 3: OSPF, BGP EVPN, Layer-3 virtualization MPLS, Transport bridging, PBB Others: DHCP, ACLs, QoS Working knowledge of Linux OS and scripting. Experience in validating high-speed Ethernet interfaces (10/25/40/100 Gbps). Familiarity with Cisco OS platforms (NX-OS, IOS, etc) and merchant silicon (ASICs) Proven experience on Traffic testing and Validation (using IXIA, Trex) is mandatory Desirable Skills: Experience testing FPGA-based switches, SmartNICs, or custom hardware platforms. Exposure to Exablaze 3550 or similar ultra-low latency networking products. Experience with containerization and testing in Docker-based environments. Familiarity with XML configurations and automation workflows. Knowledge of DevOps tools and CI/CD integration for test automation.

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