NOC Operations & Backbone Engineering

Md Momin Mia Senior Network Engineer | Core Network & ISP Operations

Building reliable, scalable, and secure network infrastructure.

Network engineer with 6+ years of experience in ISP core networks, NOC operations, routing, switching, real-time monitoring, and enterprise connectivity. Managing multi-vendor systems to achieve maximum uptime.

momin@noc-core-terminal: ~
Initializing core terminal connection... [OK]
Securing session via SSHv2 cipher suite... [ESTABLISHED]
Last login: Wed Jul 29 21:17:58 2026 from 103.230.104.14
show system status
Host: link3-core-backbone-re0
Uptime: 242 days, 14 hours, 32 minutes
System health: STABLE | Load: 0.12, 0.08, 0.05
OS version: Junos OS 21.4R3-S5 / VRP 8.20
99.998% Core Uptime
300+ Routers Managed
12+ Upstreams & Peers
Automated DDoS Protection
CORE NETWORK

About Me

6+ Years of Dedicated Infrastructure & NOC Operations Experience

I am a Senior Network Engineer with a strong track record of designing, managing, and maintaining mission-critical ISP infrastructure. My career spans across leading telecom/ISP service providers where I have specialized in multi-homed BGP routing, OSPF scaling, MPLS tunnels, and proactive network security practices.

Equipped with hands-on knowledge in multi-vendor deployment environments including Huawei, Juniper, Cisco, and MikroTik. I excel at resolving complex layer-2 and layer-3 incidents under tight SLAs, engineering path redundancy, and building robust fiber access infrastructure (FTTH/GPON).

6+ Years Experience
300+ Core Routers Managed

Core Expertise

IP Routing & BGP

  • BGP (Internal & External, Multihoming)
  • OSPF Multi-Area Tuning
  • Static Routing & Policy-Based Routing
  • BRAS / PPPoE Aggregation

MPLS & VPN Tunneling

  • MPLS L2/L3 VPN Services
  • VPLS & Pseudo-wire Tunnels
  • GRE, IPIP, & EoIP Configurations
  • IPSec VPN & Site-to-Site Tunnels

DDoS & Network Security

  • Volumetric DDoS Mitigation
  • RTBH (Blackhole Routing)
  • BGP Flowspec Filters
  • Stateful Firewall Filters & ACLs

Traffic Engineering

  • CDN, PNI, NIX routing control
  • Bandwidth Shaping & Queues
  • Multi-Homed Load Balancing
  • Transit Path Optimization

NOC Monitoring & L2/L3

  • NOC Incident Response & SLA Mgmt
  • Real-time Zabbix, Cacti & SolarWinds
  • Optical fiber link monitoring
  • Multi-vendor Router & Switch Config

Fiber & Access Networks

  • GPON / EPON OLT Operations
  • FTTH Deployment & Splitters
  • DWDM & NTTN Link Troubleshooting
  • BDCOM & GCOM OLT management

Technology Stack & Vendor Systems

Core Routing & Switching Infrastructure
Huawei NE8K / NE20 Huawei S6730 / S5731 Juniper MX-480 / MX-204 Cisco IOS XR / IOS XE MikroTik CCR (RouterOS)
Access Networks & OLT Platforms
BDCOM GPON OLT GCOM / EPON OLT Quanta Switches Ruijie Switches
NOC Monitoring & NetFlow Diagnostics
Zabbix Systems Cacti (SNMP Graphing) MRTG (Traffic Graphs) SolarWinds NPM WhatsUp Gold

Experience Timeline

Dec 2024 — Present

Senior Engineer, NGNC Core Network

Link3 Technologies Ltd
  • Managing core internet routing infrastructure consisting of 300+ operational routers and switches.
  • Providing Tier-3 backbone network support, diagnosing faults in BGP transit paths and core OSPF links.
  • Optimizing high-traffic CDN integrations (Google GGC, Facebook FNA, Akamai) and NIX/PNI peering paths.
  • Spearheading DDoS monitoring initiatives and implementing automated flowspec and blackhole mitigation workflows.
  • Configuring and deploying redundant MPLS L2/L3 VPN tunnels for corporate enterprise client profiles.
Aug 2023 — Nov 2024

Senior Engineer, NOC

Skytel Communications Ltd
  • Monitored multi-region backbone networks and zonal aggregation rings to guarantee 99.9% uptime target.
  • Balanced bandwidth consumption patterns across upstream transits to prevent port congestions.
  • Successfully coordinated and executed core router migrations during data center physical moves.
  • Mitigated incoming volumetric network attacks by coordinating with upstream providers and using local filter tools.
  • Maintained FTTH fiber plant parameters, and troubleshot active DWDM and transmission fiber cuts.
Jul 2021 — Jul 2023

Network Engineer, NOC

Weblink Communications Ltd
  • Configured customer CPEs, edge switches, and aggregation routers for network expansion.
  • Performed real-time monitoring of network services via Zabbix/Cacti and initiated fault tickets.
  • Managed subscriber IP address allocations, local DNS pools, and PPPoE authentication systems.
  • Assisted in handling corporate client connectivity issues and resolved VPN tunnel anomalies.
Sep 2019 — Jun 2021

Support Engineer, NOC

Automation System
  • Handled front-line customer network complaints, diagnosing LAN and optical power problems.
  • Maintained internal tracking systems and compiled daily NOC shift handovers.
  • Performed baseline configurations on client MikroTik routers and wireless links.
  • Coordinated field crew technicians for immediate fiber optic link restorations.

Featured Impact

300+ Routers Managed

Providing stable backbone infrastructure management across extensive regional networks.

Multi-Vendor Routing

Seamless configurations across Huawei VRP, Juniper Junos, Cisco IOS XR, and MikroTik RouterOS.

BGP & MPLS Redundancy

Optimizing traffic pathways through BGP metrics and tunneling data safely via L2/L3 MPLS VPNs.

Proactive DDoS Response

Deploying real-time detection thresholds, flowspec filters, and scrubbing routing policies.

Network Lab & Case Studies

Technical network architecture configurations and deployment studies. Select a scenario to view its details.

BGP Multihoming & Route Optimization

Routing / Border Gateway Protocol

Problem Statement

Implementing multi-homed BGP connectivity with upstream transits. Required optimized path selection for CDNs while preventing routing transit paths from causing regional latency spikes.

Solution Strategy

Configured local preference metrics, AS-path prepend filters, and community tags. Integrated specific prefix filtering rules with sub-second path convergence fallback.

Network Topology

ANONYMIZED ROUTER CONFIGURATION

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ℹ️ NOTE: Configurations, IP schemes, Autonomous Systems, and customer metrics are strictly anonymized for public security standards.

Certifications & Training

🎖️

MikroTik Certified Routing Engineer

MTCRE
🎖️

MikroTik Certified Network Associate

MTCNA
🎓

CCNA Routing & Switching

Training & Lab Curriculums

Get In Touch

Feel free to reach out to discuss ISP architectures, NOC monitoring solutions, redundancy audits, or general core routing operations. I am always open to new professional networks.

Professional Email momin.mia.noc@gmail.com
Location Dhaka, Bangladesh