Safwan Usaid Lubdhak
About
Developer, tech enthusiast, and professional nerd. I spend my days writing code and my free time talking about it. I have a few years of experience working across a wide mix of web technologies. If you ever want to chat about code, tech, or anything remotely geeky, hit me up.
Projects
Pacioli - An AI Ledger That Never Trusts the AI With Math
A deterministic double-entry bookkeeping engine where the LLM only proposes; every number and every write is computed and gated by Python.
A Circular Alt+Tab Switcher for KDE Plasma 6
A KWin window switcher that arranges windows as pie slices around the cursor - live thumbnails, multi-ring layout, and full theme integration in pure QML.
Dissecting a WordPress Hack: Ghost Admins and CSS
We debugged a WordPress slot spam infection and found attackers hiding rogue admin accounts and backdoor plugins using a simple CSS override in functions.php.
Three Apps in Raw PHP: A Lesson in SQL Transactions
A café, a library, and a gym - three management systems built in plain PHP and MySQL with no framework, where the real lessons were all about transactions.
KDoit: A To-Do Widget for KDE Plasma 6
A pure-QML to-do list plasmoid with priorities, due dates, drag-and-drop, Markdown export, and live file sync. Zero build steps required.
Chiptune SFX Maestro: Text to 8-Bit Sound Effects
An 11M-param text-to-parameter system that generates retro game sound effects from prompts, outputting sfxr parameter strings rendered to playable WAV audio.
Three Tiny Generators That Do One Thing Each
Three from-scratch text generators that create ASCII maps, cat monologues, and pseudo-assembly. Same architecture, wildly different outputs.
Experience
Freelance Web Developer
Remote clients
2019 - Present
- WordPress sites for small businesses - hosting, domains, email setup, and redesigns.
- Security work: malware cleanup, patching vulnerabilities, hardening compromised sites.
- Infrastructure migrations - moving DNS, email routing, and CDN across providers.
Education
BRAC University
BSc. in Computer Science and Engineering
- Completed core courses including Data Structures, Algorithms, Discrete Mathematics, Digital Logic Design, Data Communications, Operating Systems, and Database Systems.
- Advanced coursework in Artificial Intelligence, Neural Networks, Compiler Design, Computer Architecture, Computer Networks, and Software Engineering.
Posts
Skills
Languages
- Python
- Java
- C++
- Dart
Frontend
- JavaScript
- HTML
- CSS
- React
- Tailwind CSS
- Bootstrap
Backend
- PHP
- MySQL
- Node.js
- Express.js
- MongoDB
- FastAPI
Technologies
- WordPress
- Astro
- Gatsby
- GraphQL
- Stripe
- Firebase
Others
- Git
- Linux
- AWS
- Nginx