Cyber Security
Firewall design (Sophos XGS), vulnerability assessment, hardening, ethical hacking practice and incident readiness.
Available for consulting & freelance
Hi, I'm Habibur Rahman
IT Infrastructure Lead
13+ years building secure, resilient enterprise IT — from data centers and firewalls to Microsoft 365. Founder of BangladeshPrime.com & BangladeshPrime Learning.
$ whoami
habibur_rahman — infra · security · writer
$ uptime --career
13+ years, 3 orgs, 0 regrets
$ cat stack.txt
Cisco · MikroTik · Huawei · Sophos XGS
Hyper-V · VMware · Windows · RHEL
MS365 · Python · PHP · Node.js · AI
$ ping bangladeshprime.com
reply: founder & chief editor
$ ▍ Security-first
99.9% uptime mindset
- 13+Years in Enterprise IT
- 8Certifications & Trainings
- 7+Books & eBooks
- 2Platforms Founded
01 · About Infrastructure engineer.
Infrastructure engineer.
Writer by passion.
I design, secure and run the infrastructure that businesses depend on every day — and I write to make technology understandable for everyone.
For more than 13 years I have worked across enterprise IT infrastructure, data center operations, system administration, networking, cyber security and end-user support. My work centers on Windows Server, Active Directory, firewalls, virtualization, backup & disaster recovery, CCTV systems and IT asset management — with one goal: secure, resilient, business-aligned IT.
Beyond the server room, I am the founder of BangladeshPrime.com and BangladeshPrime Learning, where I write and teach technology in Bengali. I also build internal tools, write books, and keep exploring cloud, SOC & incident response, digital forensics, AI and automation.
- Based in
- Dhaka, Bangladesh
- Experience
- 13+ years
- Languages
- বাংলা · English
- Freelance
- Available
- habibhtn@live.com
02 · Expertise
What I do best
Network Architecture
Enterprise LAN/WAN, routing & switching, VLANs, VPN and wireless — designed for uptime and growth.
Systems & Data Center
Windows & Linux servers, Active Directory, data center operations, backup and disaster recovery.
Virtualization
Hyper-V and VMware environments — consolidation, high availability and capacity planning.
Microsoft 365 & Cloud
MS365 tenant administration, Exchange Online, identity, licensing and secure collaboration.
AI, Automation & Dev
Prompt engineering, AI-assisted workflows and custom portals in Python, PHP/MySQL and Node.js.
03 · Experience
Career journey
- 2020 — Present
IT Infrastructure Lead
Yunusco Bangladesh
I own the company’s IT infrastructure end to end — from planning and building servers from zero, to deploying services, securing the network and keeping everything running 24/7.
Server Infrastructure — zero to production
- Plan, install and commission servers from scratch: hardware setup, RAID/storage, OS installation and hardening.
- Windows Server and Linux (RHEL/Ubuntu) deployment, configuration and lifecycle management.
- Active Directory, DNS, DHCP, Group Policy, file & print services.
- Deploy and host internal applications and web portals (Apache/Nginx, PHP, Python, MySQL/MariaDB).
Virtualization & Data Center
- Design and run Hyper-V / VMware environments — VM provisioning, consolidation and capacity planning.
- Data center / server room operations: rack, power, cooling and cabling standards.
- Patching, updates and performance tuning across physical and virtual servers.
Network & Security
- Design and manage LAN/WAN, VLANs, routing, VPN and Wi-Fi on Cisco, MikroTik and Huawei.
- Sophos XGS firewall policies, web filtering and secure remote access.
- Vulnerability assessment, system hardening and access control.
Microsoft 365, Backup & Monitoring
- Microsoft 365 tenant administration — mailboxes, licensing, identity and security.
- Backup and disaster recovery planning, scheduled backups and restore testing.
- Proactive monitoring of servers, network and IP devices with in-house tools.
IT Operations & Leadership
- IT asset management, CCTV systems, PABX and end-user support across the organization.
- Lead the IT team, set SOPs and documentation, manage vendors and IT budgets.
- Build in-house portals and automation to make IT operations faster (see Projects).
- 2018 — 2020
Head of Technical Support
TechnoSYS Solutions Limited
- Led the technical support team delivering infrastructure and network solutions to clients.
- Owned escalations, deployments and service quality across customer sites.
- 2012 — 2018
Senior Executive — IT
Shore To Shore Bangladesh Ltd.
- Managed servers, network, end-user support and IT assets.
- Supported business systems and day-to-day operations for a growing workforce.
04 · Projects
Things I've built
IT Management Portal · Live in production
IT Guardian Pro
A complete, live IT operations platform that runs the IT department’s day-to-day work in one place — assets, people, communication systems, support tickets, daily checks and knowledge — with a no-code builder to add new modules without writing code.
Key features
- Asset InventoryFull register of IT assets — type, number, host name and assigned user.
- Rapid InventoryFast asset entry by employee ID, with department and completion status.
- Help Desk TicketsLog, assign and track IT support requests to closure.
- WorkboardTask board to plan and follow up the IT team’s work.
- Daily MonitoringDaily health checklist for servers, network and critical services.
- Email AccountsRecords of all company mailboxes and their owners.
- PABX DirectoryTelephone extension and PABX records.
- Employee RosterEmployee list by department, section and unit.
- Staff RegistrationOnboard new staff with their IT details.
- Solution LibraryKnowledge base of fixes and how-tos for recurring issues.
- Menu & Module ManagerNo-code builder — create new modules and menus from JSON definitions.
- Search, Sort & FilterFast searchable tables across every module.
HR Data Application
Employee Photo Booth & Signature Tracker
A web application that tracks which employees have had their photo and signature updated. It reads full employee exports from the HR ERP and connects directly to the ERP’s employee profile folders, so HR can see, preview and download photos and signatures in one place.
Key features
- Excel ImportImports the full employee list exported from the HR ERP, on a regular schedule.
- Update TrackingMarks which employees have updated photo and signature — and who is still pending.
- Photo & Signature PreviewShows each employee’s photo and signature straight from the ERP’s EmployeeProfile folders.
- One-click DownloadDownload photos and signatures for ID cards and records.
- Admin & User LoginsSeparate admin and user accounts.
- Per-user PermissionsFine-grained rights — e.g. a user who can only view/download, not mark updates.
- Search & FilterFind employees quickly by ID, name or department.
- Local Network HostingRuns on the company LAN (XAMPP) — data never leaves the premises.
Network & IP Device Monitoring
NetWatch
A monitoring portal that keeps watch over the network and every IP device on it — live up/down status, device inventory and quick visibility when something goes offline.
Factory Environment Department
EHS Portal
A portal for the factory’s Environment, Health & Safety (EHS) department — bringing the department’s records, tracking and reporting into one place.
Secure Remote Platform
Self-hosted Android Remote Access
A self-hosted remote access system for Android devices with a hardened Node.js backend, real-time WebSocket channel and a web portal.
05 · Ventures
Platforms I founded
BangladeshPrime.com
A Bengali news, analysis and technology platform — where I write regularly on tech, society and the digital future of Bangladesh.
bangladeshprime.com Read the blog →BangladeshPrime Learning
A technology education platform with practical Bengali eBooks and guides on IT careers, AI, LinkedIn and professional skills.
learning.bangladeshprime.com Explore courses & eBooks → 06 · Publications
Books & eBooks
Practical Bengali guides on technology and careers — plus a novel and a book on politics through a technologist's eyes.
eBook AI for Office Work 
AI for Office Work
৫০০+ রেডিমেড বাংলা Prompt সহ সম্পূর্ণ গাইড
eBook Claude AI মাস্টারি 
Claude AI মাস্টারি
শূন্য থেকে অ্যাডভান্সড
eBook LinkedIn A to Z 
LinkedIn A to Z
প্রোফাইল, নেটওয়ার্কিং, চাকরি ও ব্যবসা
eBook আইটি এক্সিকিউটিভ গাইড 
আইটি এক্সিকিউটিভ গাইড
দ্বিতীয় সংস্করণ
eBook নেগোসিয়েশন স্কিল 
নেগোসিয়েশন স্কিল
ছোট দরদাম থেকে বোর্ডরুম পর্যন্ত
Free রাজনীতির সোর্স কোড 
রাজনীতির সোর্স কোড
ফ্রি বাংলা ই-বুক
Novel যতটা পথ তোমার জন্য 
যতটা পথ তোমার জন্য
উপন্যাস
07 · Credentials
Certifications & education
Certifications & Training
- 2026Cyber Security & Ethical HackingArena Web Security (Cyber71)
- 2025The Complete Ethical HackingUdemy
- 2019Red Hat Certified Engineer (RHCE)Red Hat
- 2019Red Hat Certified System Administrator (RHCSA)Red Hat
- 2019Microsoft Certified Systems Engineer (MCSE)Microsoft
- 2019Microsoft Certified Solutions Associate (MCSA)Microsoft
- 2019Cisco Certified Network Associate (CCNA)Cisco
- 2015Web DesignCreative IT Institute
Education
- 2011 — 2014B.Sc. in Computer Science & EngineeringAtish Dipankar University of Science & Technology
- 2006 — 2010Diploma in Computer EngineeringCSBSI, Bogura
- 2006 — 2008Higher Secondary CertificateGovt. Shah Sultan College, Bogura
08 · Services
How I can help you
Network & Security Audit
Firewall review, vulnerability assessment and a clear, prioritized fix plan.
Infrastructure Design
Server, virtualization, backup/DR and network design for SMBs and factories.
MS365 Setup & Migration
Tenant setup, email migration, security baselines and user onboarding.
Technical Writing & Training
Documentation, SOPs, Bengali tech content and team training.
09 · Contact Have a project or idea?
Have a project or idea?
Let's talk.
Infrastructure, security, MS365 or a writing collaboration — I usually reply within a day.
habibhtn@live.com- Email / Teamshabibhtn@live.com
- Phone / WhatsApp+880 1717 270 641
- LinkedInin/habibhtn
- Location
Dhaka, Bangladesh