Sr. Network Engineer Position Id: G0926-0080

Job Type: Full Time

Country: India

Location: Mumbai

Pay Rate: Open

Contact Recruiter: Not Available

Job Summary The SME - Network & Security Infrastructure will be a senior hands-on technical resource responsible for the organization's enterprise network and associated security infrastructure. The role will provide L3/SME-level support for LAN, WAN, routing, switching, firewalls, VPN, wireless, cloud connectivity and network security, and will independently handle complex incidents, changes and improvement activities.

Key Responsibilities

- Manage and support enterprise LAN, WAN, Internet and data center network infrastructure.
- Configure and troubleshoot routers, switches, firewalls, wireless infrastructure and related network devices.
- Manage VLANs, trunking, LAG/LACP, STP, inter-VLAN routing and network segmentation.
- Configure and troubleshoot routing protocols including OSPF and BGP.
- Manage firewall policies, NAT, security zones, objects and network access controls.
- Manage site-to-site and remote-access VPN connectivity.
- Support network security platforms including firewalls, IDS/IPS and related security solutions.
- Manage connectivity between offices, data centers, cloud environments and external service providers.
- Support Azure/AWS cloud networking including VNets/VPCs, routing, VPN and connectivity with on-premises environments.
- Monitor network availability, bandwidth utilization, latency, packet loss and overall performance.
- Troubleshoot complex network incidents and perform packet-level analysis where required.
- Perform Root Cause Analysis for major network outages and recurring incidents.
- Plan and execute network upgrades, migrations and technology refresh activities.
- Maintain network security standards and implement recommended hardening practices.




- Periodically review firewall and network configurations and coordinate cleanup of obsolete configurations.
- Coordinate with ISPs, OEMs and network/security vendors for incidents, changes and service-related issues.
- Manage IP addressing and maintain IP/VLAN/network inventory.
- Maintain network diagrams, configuration documents, SOPs and configuration backups.
- Support vulnerability remediation and infrastructure security audits.
- Implement and maintain network redundancy and high-availability configurations.
- Provide L3/SME-level technical guidance to network engineers and support teams.
- Participate in change management and ensure production network changes are planned, tested and documented.
- Provide network architecture and technical inputs for new infrastructure requirements and projects.

Required Skills

- Enterprise routing and switching
- TCP/IP, VLAN, STP, LACP and Layer 2/Layer 3 troubleshooting
- OSPF and BGP
- Firewall configuration and administration
- NAT and network security policies
- IPsec and SSL VPN
- High availability and network redundancy
- Enterprise wireless networking
- DNS and DHCP fundamentals
- Network monitoring and troubleshooting
- Packet analysis using Wireshark or equivalent tools
- Azure/AWS cloud networking
- Network security and segmentation
- Cisco/Aruba/HPE networking experience preferred
- Fortinet/Sophos/Palo Alto or equivalent firewall experience
- Network documentation and diagram preparation

Qualification & Experience

- Bachelor's degree in IT, Computer Science, Engineering or equivalent.
- 7-10 years of relevant enterprise networking experience.
- CCNP or equivalent networking certification preferred.
- Fortinet, Palo Alto, Aruba or other relevant OEM certifications preferred.
- Solid hands-on troubleshooting capabilities for critical production network issues.

📌 Sr. Network Engineer (India)
🏢 Trigyn Technologies
📍 India