Sr Network Test Engineer

Mandatory Skills

Essential Responsibilities

• Design, configure, document, and maintain physical and virtual network test environments for Polaris.
• Configure routers, managed switches, VLANs, inter-VLAN routing, NAT, DNS, DHCP, firewalls, VPNs, WAN/MPLS concepts, and relevant 4G/5G or CGNAT scenarios.
• Create network simulation and automation scripts for latency, jitter, packet loss, bandwidth constraints, disconnections, NAT behavior, and recovery scenarios.
• Develop network-focused VV plans, test cases, execution evidence, reports, regression coverage, and defect records.
• Validate performance, reliability, resilience, connectivity, audio/video streaming, signaling, remote access, and screen-sharing behavior.
• Use packet captures, application logs, metrics, and structured troubleshooting to isolate root causes.
• Coordinate with infrastructure, cybersecurity, engineering, product, verification, and customer-facing teams.
  Required Qualifications and Skills
• Bachelors or Masters degree in Computer Science, Electronics, Telecommunications, IT, or a related field.
• 7-10 years of relevant network engineering, system validation, test engineering, or infrastructure engineering experience.
• Strong knowledge of TCP/IP, routing and switching, VLANs, NAT, DNS, DHCP, firewalls, VPNs, MPLS/WAN, and network performance analysis.
• Hands-on experience with Cisco, MikroTik, Fortinet, pfSense, Juniper, or equivalent platforms, together with managed switches, routers, and firewalls.
• Experience with Wireshark, packet capture analysis, Linux, connectivity troubleshooting, latency, packet loss, jitter, and log analysis.
• Ability to automate tests or simulations using Python, Bash, or PowerShell.
• Experience establishing and managing physical labs and test environments.
• Ability to work in person from the Bengaluru office.

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