End-to-end radio frequency optimization initiative across a nationwide ISP network of 300+ POPs, incorporating spectrum interference diagnosis, advanced frequency plan redesign, and automated link health monitoring pipelines to sustain carrier-grade uptime.

Spearheaded a nationwide RF optimization program at Amber IT Limited, coordinating with 7 national vendors including F@H, GP, and BTCL to analyze and remediate spectrum interference across 300+ POPs. Deployed advanced RF analysis tooling that identified persistent interference patterns, enabling redesigned frequency plans and a documented 20% reduction in RF link failures. Configured Ubiquiti (PowerBeam, NanoStation, AirFiber), Cambium Networks (ePMP 180–325L), and Mimosa (B5C, C5C, C5X) radio modems for optimal bandwidth allocation. Established SNMP polling and Syslog ingestion pipelines enabling real-time device health visibility and proactive fault resolution across the entire nationwide infrastructure footprint.

Centralized IT operations architecture managing hardware, software, and network uptime across a 50+ branch nationwide network, enabling government-backed technology initiatives and large-scale IT training programs across Bangladesh.

Designed and maintained centralized IT operations for e-Learning & Earning Ltd., overseeing hardware, software, and network system health across 50+ branches nationwide. Managed end-user technical support across Windows 7, 10, and 11 environments covering OS installations, system upgrades, and critical troubleshooting workflows. Built and sustained physical cable infrastructure across all branches, coordinating equipment repair and replacement to minimize operational downtime. Collaborated with cross-functional internal teams to streamline IT processes underpinning nationwide government-backed technology training programs delivered to hundreds of students.

A Python-powered automation framework leveraging Netmiko and Paramiko for mass-scale router and switch configuration management, enabling consistent policy enforcement and a dramatic reduction in manual configuration overhead across enterprise networking environments.

Developed a Python-based network automation framework utilizing Netmiko and Paramiko libraries to automate router and switch configuration management via encrypted SSH sessions. The framework supports bulk VLAN provisioning, ACL policy deployment, DHCP configuration management, and NAT rule enforcement across enterprise network topologies. Integrated SNMP polling and Syslog ingestion pipelines to provide real-time device health visibility. The solution significantly reduced human configuration error and manual intervention time, forming a core component of the network operations automation toolkit at Amber IT Limited.

Comprehensive VLAN segmentation and network security architecture for a 300+ POP nationwide ISP, enforcing granular traffic isolation, ACL policies, and firewall rules to achieve an enterprise-grade security posture across a multi-vendor, multi-site topology.

Architected and deployed a multi-tier VLAN segmentation strategy across the nationwide network infrastructure at Amber IT Limited covering 300+ Points of Presence. Designed and enforced Access Control Lists to restrict unauthorized cross-segment traffic flows between network zones. Implemented comprehensive DHCP scope management, NAT policies, and port security configurations to maintain strict traffic isolation and minimize the attack surface. EtherChannel configurations provided link redundancy and increased throughput at critical aggregation nodes, while consistent firewall policy enforcement maintained compliance with enterprise security standards across all multi-vendor field equipment.