NT
Narayan Thakur Network & Security Engineer
uplink: available for hire
loc: mumbai, in  ·  uptime: 4.9y+
ntadmin@core-rtr01: ~$ show system status

// senior network engineer — infrastructure & security

Keeping packets
moving, networks
defended.

4.5+ years designing, securing and operating mission-critical infrastructure across Tier 1 ISP and fintech environments — from BGP/OSPF route propagation to 600+ firewall policies guarding six data centers.

4.5+years experience
6DC environments managed
600+firewall policies & ACLs
5vendor platforms

show run | platform stack

Routing & Switching
BGPOSPFEIGRPVLANSTP/RSTP/PVSTVTPHSRPVXLANQoSEtherChannel
Security & VPN
IPsec VPNSite-to-SiteRemote AccessACLsSSL InspectionFirewall Policy Mgmt
Vendor Platforms
CiscoFortiGatePalo AltoJuniperNokia
Monitoring & Tools
SolarWindsZabbixObserviumSumo LogicWiresharkXshell / SecureCRT
ntadmin@core-rtr01: ~$ show logging | uptime-history

Experience log

Interface uptime record — every role, still forwarding traffic today.

Infra Network Engineer

Mosambee | PineLabs

UP Nov 2025 — Present
  • Monitor and maintain production infrastructure and DC environments using NMS tooling.
  • Design, implement and support secure network solutions including IPsec site-to-site and remote-access VPNs.
  • Manage 6 infrastructure environments hosted across data centers; configure enterprise firewalls (Fortinet 100F/200E/200F/201G, Palo Alto PA-440) and administer 600+ firewall policies and ACLs.
  • Provide L2 support for LAN/WAN environments — troubleshoot incidents, perform RCA with documented resolutions, and coordinate with L1/L3 teams for SLA-compliant closure.
  • Configure and manage STP, RSTP, PVST and EtherChannel for loop prevention and link aggregation.
  • Deploy and maintain VXLAN overlay networks, plus BGP and OSPF routing across WAN and DC environments.
  • Maintain topology diagrams, SOPs, MOPs, configuration backups and change management records; prepare performance and capacity-planning reports.
FortinetPalo AltoIPsec VPNVXLANBGP/OSPF

IP/Ethernet Tier 2 Engineer

eClerx — US client: Zayo Communications

Aug 2025 — Nov 2025
  • Monitored and troubleshot IP/Ethernet circuits in a 24x7 telecom-grade NOC for enterprise customers across the US.
  • Performed advanced troubleshooting on MPLS, BGP, VLAN, STP and LAG-related incidents.
  • Configured and maintained multi-vendor devices including Cisco, Juniper, Nokia and Ciena.
  • Conducted RFC 2544 service-level testing and supported field engineers with OTDR fiber diagnostics.
  • Coordinated with carrier partners — Verizon, AT&T, Lumen, Windstream — to resolve network issues.
  • Documented incidents, RCA and resolutions in Salesforce with clear customer-facing reporting.
MPLSCienaSalesforceRFC 2544OTDR

Assistant Manager — NOC Network Engineer

Reliance Jio Infocomm Limited

May 2022 — Aug 2025
  • Configured and monitored 7360 ISAM OLT, Radisys RLT-3200C/RLT-1600C OLT, and Cisco ASR 903/9010 routers across the PAN-India network.
  • Specialized in alarm monitoring and live troubleshooting across GPON (Nokia) and Cisco ASR 9020/903/9010 platforms.
  • Applied deep working knowledge of TCP/IP, OSI layers and routing protocols — EIGRP, OSPF, BGP, RIP, VRRP, STP/RSTP.
  • Conducted network availability audits and resolved issues across the PAN-India footprint.
  • Handled enterprise customer escalations and coordinated vendor resolution.
  • Executed complex changes on network and security devices with zero-impact transitions.
  • Led firmware upgrades and FX4→FX8 chassis migration on Nokia OLT.
  • Configured Nokia GPON OLT ISAM 7330 and Radisys OLTs — link aggregation, card setup, ONT config, ENT VLAN, multicast, XML uploads, backup/restore.
GPONNokia OLTCisco ASRVRRPPAN-India NOC

Technical Associate

Randstad Ltd — Client: Nelco Network Products Ltd

Nov 2021 — May 2022
  • Maintained KU-band VSAT systems and installed VSAT antennas at remote OIL field sites (ONGC rigs and platforms).
  • Diagnosed RF technical faults and supported escalated field issues.
  • Configured satellite modems and routers — iDirect X1/X3/X5, iQ200, LinkWay S2, ACU.
  • Monitored VSAT sites through NMS software.
VSATiDirectRF DiagnosticsField Ops
ntadmin@core-rtr01: ~$ show license all

Licenses & certifications

Active credentials, verified and installed.

CCNA ACTIVE

Enterprise Networking, Security & Automation

Cisco

CCNA ACTIVE

Switching, Routing & Wireless Essentials

Cisco

LFS ACTIVE

Linux Fundamentals

Linux Foundation Track

NSE 3 ACTIVE

NSE 3 Certified in Cybersecurity

Fortinet

Issued Jul 2025 · Expires Jul 2027

See credential ↗

show education

Bachelor of Engineering — Electrical

North Maharashtra University

Aug 2018 — Sept 2021
ntadmin@core-rtr01: ~$ show interface description

About

I'm a results-driven network engineer with 4.5+ years across Tier 1 ISP and fintech environments, currently leading infrastructure operations at Mosambee (a PineLabs company). My work sits at the intersection of availability, security and performance — keeping mission-critical systems up while hardening the perimeter around them.

I've operated multi-vendor stacks spanning Cisco, Juniper, Nokia, FortiGate and Palo Alto — from PAN-India GPON access networks at Reliance Jio, to carrier-grade Ethernet circuits at Zayo, to the six-DC firewall and VPN estate I run today. I'm comfortable owning an incident end-to-end: triage, RCA, vendor coordination and the documentation that keeps the next engineer from repeating my troubleshooting.

Outside of production tickets, I build small internal tools — NOC dashboards, alerting scripts, automation around the platforms I manage — to cut down repetitive manual work.

ntadmin@core-rtr01: ~$ ping narayanthakur.in

Connect

Open a session — reachable through any of the routes below.

64 bytes received — response time: instant. Reach out for network engineering, infrastructure security or NOC leadership opportunities.