S M Shabab

S M Shabab

Results-driven Network Engineer & CTO with 12+ years of experience architecting, securing, and scaling enterprise-grade infrastructure. Specialized in large-scale fiber optic deployments, Linux systems automation, and leading NOC teams managing 20 Gbps+ throughput with 99.9% uptime.

37 College Road, Narayanganj, Dhaka, Bangladesh - 1400 +88 01 863 456 863 ashique@ashique.me ashique.me m.me/G33K.BD

Work Experience

2017 – Present

Chief Technical Officer

CiTYCOM Network — ISP & Telecommunications

  • Led a team of network engineers operating a 20 Gbps+ backbone, maintaining 99.9% uptime across the metropolitan service area.
  • Spearheaded the design and deployment of a city-wide FTTH (Fiber-to-the-Home) network, expanding subscriber coverage by over 300%.
  • Architected scalable LAN/WAN infrastructure using BGP, OSPF, and MPLS, reducing average latency by 35% across edge nodes.
  • Established disaster recovery protocols and hardened network perimeters, cutting security incidents by 60% year-over-year.
  • Represented the organization at ISPAB & BTRC regulatory forums, negotiating vendor partnerships that reduced procurement costs by 20%.
2014 – 2017

System Administrator

Honest Networks · Fast Systems

  • Engineered and maintained 50+ Linux-based production servers (CentOS, Ubuntu, Debian) with automated provisioning via Ansible, reducing deployment time by 40%.
  • Deployed a comprehensive network monitoring stack (Zabbix, Grafana, Prometheus), enabling proactive issue resolution and reducing MTTR by 45%.
  • Built CI/CD pipelines and automated mission-critical deployments across cloud infrastructure, achieving zero-downtime releases.
  • Implemented centralized log management and security auditing, improving compliance readiness and accelerating incident forensics.
2011 – 2014

Full Stack Developer

Noteware Digital

  • Delivered 15+ full-stack web applications for SME clients using PHP, JavaScript, MySQL, and modern MVC frameworks.
  • Managed end-to-end project delivery for international clients, consistently meeting deadlines and achieving a 90%+ client satisfaction rate.
  • Introduced version control (Git), automated testing, and containerized development environments, improving team velocity by 25%.

Skills

Networking & Protocols

BGP OSPF MPLS TCP/IP DNS / DHCP VLAN / VPN LAN / WAN FTTH / Fiber Optics IPv4 / IPv6 Firewall Administration

Systems & Automation

Linux (CentOS, Ubuntu, Debian) Ansible Python Bash Scripting Docker CI/CD Pipelines Git / GitHub

Monitoring & Security

Zabbix Grafana Prometheus Security Hardening Incident Response Disaster Recovery Compliance Auditing

Leadership & Operations

  • NOC team leadership — directing engineers across a 20 Gbps+ ISP backbone with 99.9% SLA.
  • Vendor & stakeholder management — negotiating contracts, evaluating solutions, and driving cost reductions.
  • Incident command — leading rapid-response efforts during critical outages with structured post-mortems.
  • Open-source contributor on GitHub — active in community-driven networking and DevOps tooling.

Languages

Language Listening Reading Spoken Interaction Spoken Production Writing
Bengali Native Native Native Native Native
English Proficient Proficient Intermediate Intermediate Advanced