Contract software engineer: SaaS platforms, cloud infrastructure and AI pipelines. Self-taught, I started building for clients at 16 and have worked independently since 2014, from Dhaka, Bangladesh (UTC+6), and I'm available for remote part-time or contract work on US Eastern Time.
My main work is my own company, Easy Digital International Limited, an independent software vendor (ISV) and cloud marketplace publisher, and a partner of Google Cloud, Microsoft Azure, DigitalOcean, Alibaba Cloud and Vultr. Alongside it, I've been Tech Lead at Serenity Gallerie since late 2025.
I design, build and run systems end to end, from architecture to release. I usually work alone, and I leave documentation so a team can take over. My main tools are Go, PHP/Laravel, Python, Vue and Google Cloud, with Docker, nginx and Caddy.
→ morsalin.online has the full case studies.
Client work is described generically, without client names.
| Project | What it is |
|---|---|
| WordPress Hosting Control Panel | Self-serve hosting SaaS that provisions servers on 5 clouds and runs them through a signed Python agent. Built solo over three generations |
| Licensing & Entitlement Platform | Go licensing backend for a cloud marketplace. ed25519 licences verify offline. 654 Go tests |
| AI Listing Pipeline | LLM pipeline with validated structured output. It has written 1,027 auction listings since May 2026 |
| AI Jewellery Cataloguing | Two-stage Gemini vision pipeline on Vertex AI that turns supplier spreadsheets into auction lots |
| Anti-Piracy Video LMS | Laravel learning platform with DRM streaming, per-viewer forensic watermarks and single-device sessions |
| Centralized Fleet Control | Go WebSocket relay and node agent that run Ed25519-signed tasks with no inbound ports open |
| Hospital Website & Serial Booking System | Bilingual (English/Bengali) hospital site where patients and reception book serials from one queue. 10 staff roles, audited access, 305 tests. Built, yet to go live |
php-docker  |
PHP-FPM and CLI images for PHP 8.2–8.5, with 50+ extensions, Composer and WP-CLI |
frankenphp-docker  |
FrankenPHP with a custom Caddy build: Coraza WAF, Souin cache and rate limiting |
caddy-docker  |
Caddy with the OWASP Coraza WAF, Souin HTTP cache, rate limiting and 6 DNS providers |
nginx-docker  |
Stock nginx plus ModSecurity 3 (OWASP CRS), Brotli, Zstd, GeoIP2 and OpenTelemetry |
apache-docker  |
Apache configured for static files or PHP-FPM, with an origin variant for use behind a proxy |
| caddy-souin-cache-manager | WordPress plugin to browse and purge the Caddy Souin cache from WP Admin, with WP-CLI commands |
- Google Cloud specializations on Coursera (2020): Architecting with Google Compute Engine and Preparing for the Cloud Engineer certification
- 9 Google Cloud skill badges (Credly, 2025), including Terraform, Load Balancing and Monitoring