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Happiest Minds Technologies • Bengaluru, Karnataka, India
Role & seniority: Experienced Network Test Engineer (8–11 years), senior-level role focused on validation of enterprise-grade networking features.
Stack/tools: Python (mandatory), PyATS, Pytest, Robot Framework; Linux OS and scripting; Cisco NOS (NX-OS, IOS, XR, XE or equivalents); test-framework development; traffic testing tools (IXIA, Trex); containerized envs (Docker); merchant ASICs/Exablaze 3550; L2/L3 protocols and virtualization concepts.
Design and execute comprehensive test plans and automation scripts for L2/L3 networking features from scratch.
Validate protocols and features across L2/L3 (across Core/Edge routers and DC switches) and through various deployment contexts.
Conduct system-level, regression, performance, and stress testing for high-throughput networking platforms; collaborate with developers/support/architects to resolve issues.
8–11 years in network testing and automation; strong Python coding (mandatory).
Proficiency with Pytest and Robot Framework; solid Linux scripting.
Expertise in L2/L3: VLAN, LACP, vPC, STP, VXLAN, MacSec; OSPF, BGP EVPN, L3 virtualization; MPLS, PBB; DHCP, ACLs, QoS.
Experience validating high-speed interfaces (10/25/40/100 Gbps); familiarity with Cisco OS platforms (NX-OS, IOS, XR, XE) and merchant silicon; proven traffic testing experience (IXIA, Trex).
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
Proficiency in test automation tools and frameworks: Pytest, Robot Framework.
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