Network Verification Engineer

Quest Global; Bengaluru; On-site; INR 2,500,000 - 4,000,000; Full time

Job summary

Quest Global is seeking a seasoned network engineer to build and maintain the network simulation lab, reproduce customer environments, and automate network scenarios from Bengaluru. You will verify solutions from a networking perspective, diagnose complex field issues, and coordinate with multiple teams to ensure robust deployments.

Ideal candidates have 7–10 years of experience in validating networks, strong TCP/IP skills, and hands-on practice with major vendors.

Qualifications

• Bachelor's or Master's 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.

Responsibilities

• Design, configure, document, and maintain physical and virtual network test environments for Polaris.
• Configure routers, switches, VLANs, inter-VLAN routing, NAT, DNS, DHCP, firewalls, VPNs, WAN/MPLS concepts, and 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 V&V 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.

Skills

TCP/IP knowledge

Routing & switching

VLANs

NAT / DNS / DHCP

Firewalls & VPNs

MPLS/WAN

Network performance analysis

Wireshark

Linux

Test automation (Python/Bash/PowerPath

Lab management

Connectivity troubleshooting

Latency, jitter, packet loss testing

Log analysis

Scripting (Python/Bash/PowerShell)

Education

Bachelor's or Master's in CS/ Electronics/ Telecommunication/ IT

Tools

Cisco

MikroTik

Fortinet

pfSense

Juniper

Managed switches/routers/firewalls

Wireshark

Job description

Job Requirements

Role Summary: Build, maintain, and operate the network simulation lab and verify the solution from a networking perspective. The engineer should be a strong network specialist with a validation mindset who can reproduce customer environments, automate network scenarios, execute test cases, and diagnose complex field and deployment issues.

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 V&V 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.

Work Experience

Must-have Skills & Experience:

• Bachelor's or Master's 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.

Preferred Qualifications

• WebRTC knowledge, including ICE, STUN, TURN, and audio/video streaming concepts.
• Experience with LiveKit, Microsoft Teams, Zoom, or similar real-time communication platforms.
• AWS infrastructure, cybersecurity, enterprise network architecture, healthcare or medical-device experience.
• Experience supporting customer deployments and field investigations.