Available for selected opportunitiesBangladesh · Remote
Infrastructure / Security / Product Engineering
Independent technologist Sabbir Hasan
Building secure networks, scalable applications, and modern digital systems.
Connecting to GitHub...
HTML5
CSS3
JavaScript
Node.js
Express.js
MySQL
ReactSystems built
with intent.
Select a discipline to inspect the operational layer beneath it.
VLAN 10 / 20 / 30
AUTHENTICATED
VISUAL SYSTEM / COMPOSITION / DELIVERY
SEO / CONTENT / ANALYTICS / GROWTH
RELATIONAL CORE
INDEXED / NORMALIZED / QUERY READY
CMS MANAGED SERVICE DATA
Service details load from the portfolio admin system.
Featured Projects
A small selection from the live project archive.
Project data loads from the portfolio admin system.
Connected by
real systems.
The ecosystem below derives from the stack metadata attached to published projects.
Technology metadata loads from project data.
Traffic with
clear intent.
A resilient path from the public internet to segmented systems.
Network service data loads from the admin system.
Security as a
working layer.
Protection designed into every request, identity and API boundary.
ANALYSISTHREAT
DETECTION
Cybersecurity service data loads from the admin system.
The person behind
the systems.
CS Graduate · CCNA Trained · IT Professional
Computer Science graduate and CCNA‑trained professional bridging the gap between secure network engineering and full‑stack development. From configuring robust network topologies to building dynamic software solutions, I thrive on solving complex technical problems.
Certified in Digital Marketing & Technical SEO by Google, with hands-on coursework and lab training from Cisco Networking Academy, TCM Security, and Udemy in Network Engineering, Ethical Hacking, and Malware Analysis. Fluent in English, Bangla, and Hindi.
Experience, recorded
in the work.
A timeline of roles and technical responsibility, managed from the portfolio admin.
Career records are loading from the admin system.
Foundation,
then practice.
Education records are loading from the admin system.
Certifications & Training
Credentials are loading from the admin system.
Train the
practical layer.
Latest Insights
Practical notes on networking, cybersecurity, Linux, web engineering and the systems behind reliable digital products.
Latest articles are loading from the CMS.
Tools that turn
theory into answers.
Focused browser-based utilities already available in this portfolio.
Open all tools ↗Work continues
in the open.
Repositories, experiments and implementation history from the linked GitHub profile.
Visit GitHubReady to build something together?
Open to freelance projects, collaborations, and full-time roles in IT, networking, or web development. Don't hesitate to reach out.