Shahriar Islam Linux systems / hosting operations

Dhaka / system administrator / founder

Keep the stack steady.

I manage Linux hosting infrastructure, cPanel/WHM operations, secure license routing, and automation for production hosting environments.

Start a conversation Open CV
Shahriar Islam operating map A professional hosting control plane diagram with WHM and cPanel at the center, connected to DNS and email, license routing, CSF firewall, backups, and WHMCS billing. Hosting control plane Linux hosts / WHM operations / secure service routing Core stack WHM / cPanel Linux hosting operations Routing DNS + email records / mail flow Access License routing secure entitlement path Perimeter CSF firewall hardening / response Recovery Backups restore planning Commercial ops WHMCS billing

Operator brief

Practical administration with founder-level ownership.

My work sits close to the machines: Linux server administration, DNS and email management, SSH-based troubleshooting, firewall configuration, SSL, backups, malware removal, and performance optimization for hosting stacks.

Alongside day-to-day operations, I founded System License (Syslic), building backend infrastructure for a shared licensing platform serving web-hosting software such as cPanel/WHM, LiteSpeed, CloudLinux, and JetBackup.

Work register

Infrastructure roles across hosting operations and product architecture.

2023 - Present

Founder & Lead System Architect

System License (Syslic) - Dhaka, Bangladesh

Architected and deployed Syslic, a shared license system for the web-hosting industry. I handle backend infrastructure, API development, secure license routing, automated billing integration, software update paths, availability planning, and proactive security monitoring.

2018 - Present

Server Administrator

PAIHOST LTD - Dhaka, Bangladesh

Manage, secure, optimize, and troubleshoot Linux-based hosting servers with cPanel/WHM environments. The role covers configuration, incident response, client support, uptime-focused operations, migration work, and performance tuning.

Systems bench

The operating work I can take off your plate.

01

Web servers

Apache, Nginx, LiteSpeed, hosting stack configuration, and server optimization.

02

Control panels

cPanel/WHM, WHM migration, CloudLinux, and hosting account administration.

03

Infrastructure

Linux server administration, DNS and email management, SSH workflows, and API development.

04

Security

CSF firewall, malware removal, SSL setup, backup planning, and recovery workflows.

05

Automation

WHMCS integration, automated billing systems, licensing flows, and operational tooling.

06

Support

Troubleshooting, server configuration, client support, and uptime-minded communication.

Study and range

Engineering study alongside real production systems.

2021 - 2025

BSc in Civil Engineering

IUBAT - International University of Business Agriculture and Technology. CGPA: 3.63/4.00.

2017 - 2019

Higher Secondary Certificate

Shaheed Ramiz Uddin Cantonment College. Major: Science. GPA: 4.50/5.00.

2015 - 2017

Secondary School Certificate

Mollartek Uddyan School & College. Major: Science. GPA: 5.00/5.00.