TEST LEAD - Switching and routing

Happiest Minds Technologies; Bengaluru; On-site; INR 2,500,000 - 4,000,000; Full time

Job summary

Happiest Minds Technologies is seeking experienced Network Test Engineers to validate high-performance networking features. You will design test plans and automation scripts for L2/L3 networking, develop automation frameworks in Python, and validate protocols across routing, switching, and data center environments.

You will work with Dockerized setups and containerized solutions, collaborating with architects to resolve complex issues.

Qualifications

• 9–12 years of experience in network testing and automation.
• Strong hands-on Python programming (Mandatory).
• Proficiency with test automation tools/frameworks: Pytest, Robot Framework.
• Experience with Layer 2/Layer 3 protocols (VLAN, LACP, vPC, STP, VXLAN, MACsec; OSPF, BGP EVPN, L3 virtualization).
• Experience validating high-speed Ethernet interfaces (10/25/40/100 Gbps).
• Familiarity with Cisco OS platforms (NX-OS, IOS) and merchant silicon (ASICs).
• Proven experience on traffic testing/validation (IXIA, Trex) is mandatory.
• Linux OS and scripting knowledge.

Responsibilities

• Design and execute comprehensive test plans and automation scripts for L2/L3 networking features.
• Develop and enhance test automation frameworks using Python, integrating PyATS, Pytest, Robot Framework.
• Validate protocols and features across L2 and L3.
• Validate core/edge router and data center switch platforms.
• Execute system-level, regression, performance, and stress testing for high-throughput networking.
• Validate containerized networking solutions using Docker and Linux.
• Collaborate with developers, support, and system architects to debug networking issues.
• Participate in agile ceremonies, daily scrums, and sprint reviews for feature testing.

Skills

Python programming

Test automation

Networking knowledge

L2/L3 protocols

Linux scripting

Docker

Agile practices

Tools

PyATS

Pytest

Robot Framework

Trex

IXIA

Cisco NX-OS/IOS

Job description

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

• 9 - 12 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

Switching and routing,Data Network - Routing & Switching,VLAN,Spanning Tree Protocol (STP),VXLAN,VxLAN-EVPN,OSPF Protocol,Border Gateway Protocol (BGP),Python,Pytest