Hello, I'mRokibul Hasan👋
Specializing in Next.js, React Native, and high-performance web applications. I build scalable full-stack solutions that transform ideas into impactful digital experiences.
I'm passionate about solving complex problems through innovative technology solutions. From concept to deployment, I bring ideas to life with clean code and exceptional user experiences.
"If I don't know something, I'm honest about it — then I find the right answer."
About-Me.
I'm Rokibul Hasan, a Software Engineer from Bangladesh. I think our Home Screens say a lot about us, so here's mine.
I'm a Full-Stack Engineer who values speed, precision, and workflow. Explore the phone to see what I'm about.
Technologies I use.
Over the years, I have worked with a variety of technologies. Here are some of the technologies I have experience with:
React NativeReact
Next.js
Tailwind CSS
JavaScript
TypeScript
Express.js
PHP
Python
PostgreSQL
MySQL
Java
Git
GitHub
Figma
CanvaBeautiful SoupScrapy
Selenium
Power BI
Jira
Notion
Linux
Windows
Expo
Odoo ERP
Swift
Rust
Go
Docker
Nginx
Supabase
Firebase
Vite
Vercel
Cloudflare
Fastify
PandasReact NativeReactNext.jsTailwind CSSJavaScriptTypeScriptExpress.jsPHPPythonPostgreSQLMySQLJavaGitGitHubFigmaCanvaBeautiful SoupScrapySeleniumPower BIJiraNotionLinuxWindowsExpoOdoo ERPSwiftRustGoDockerNginxSupabaseFirebaseViteVercelCloudflareFastifyPandasBuilding high-impact
digital products.
Shipped mobile apps, live client platforms, and open-source tooling — ordered by what they best demonstrate.
Lyffe — Life Planner iOS Application
Tasks, Budget, Habits & Journal
- Designed, built, and shipped an all-in-one life planner to the Apple App Store as a solo developer.
- Built with React Native and Expo for iPhone, with Apple Silicon Mac and Apple Vision support.
- Privacy-first and offline: all data stays on-device in SQLite, with no account, no cloud sync, and no server.
grabnr — Multi-Connection Download Manager
Every Network Connection, One Download
- Built a cross-platform download manager that uses Wi-Fi, Ethernet, USB and phone tethering at the same time to download a single file.
- Files are split into chunks in a shared queue. A worker bound to each network interface pulls the next chunk, so faster links automatically take more of the work.
- Wrote the engine in Rust: interface discovery and binding, tail racing, adaptive connections per link, resume across restarts, retries with backoff, checksums, mirrors and Metalink.
Listnr — On-Device Meeting Transcription for macOS
Local Meeting Listener
- Built a native macOS app in Swift that transcribes meetings entirely on-device — nothing ever leaves the machine.
- Captures the microphone and system audio as two separate lanes, so local and remote speech are never mixed.
- Transcribes both lanes locally using WhisperKit and Core ML, optimized for Apple Silicon.
GME Service — Employee Management Mobile Application
Production Service App
- Planned the application architecture and feature scope from the idea stage.
- Built a production-ready HR & employee management mobile app.
- Developed the mobile app using React Native (Expo).
Presswayy — Web Application
AI Facebook Page Automation
- Implemented frontend and backend features on Presswayy, a live AI social automation platform.
- Diagnosed and resolved Omnichat performance degradation that was affecting active users.
- Cleared a multi-day PostgreSQL lock that was blocking a schema migration.
HAVE A PROJECT IN MIND?
Let's build something details