Sheikh Russel Digital Lab
Led development of a government-funded interactive digital learning platform delivering 1,000+ simulations for grades 6–10 across Bangladesh.
Hello, I'm Hasan Sarwer
Building Full-Stack Products,
Data Systems & Interactive
Digital Experiences
Full-Stack Engineer with a PhD in Mathematics. I build web apps, mobile apps, AI/data workflows, and interactive learning products — from architecture to deployment.
1,000+Interactive Modules
10+Apps Shipped
20+Team Members Led
PhDMathematics
What I Do
Core specialties across engineering, data, and product development.
Full-Stack Web Development
React, Next.js, Node.js, Express, MongoDB, MySQL
Mobile App Development
React Native, Expo, cross-platform iOS & Android
AI, Data & Automation
Python, Pandas, scraping, data pipelines, ML models
Interactive Digital Products
Pixi.js, Three.js, Canvas, educational simulations
Design Systems & Open Source
salt-theme-gen, OKLCH color science, npm packages
Quantitative Problem-Solving
PhD Mathematics, numerical methods, algorithm design
Featured Projects
Products and systems I've designed, built, and shipped.
salt-theme-gen — Design System Theme Engine
An open-source OKLCH-based theme generator that takes one hex color and produces a complete light/dark design system with 21 semantic colors, 32 interactive states, and WCAG accessibility reports.
WorkingFromHammock
Built the backend, data scraping pipeline, and geo-distance features for a travel guide platform connecting remote workers with destinations and workspaces.
Pallabi Business Service Ecosystem
Architected and built a comprehensive ecommerce ecosystem: 1 web platform + 4 dedicated mobile apps serving retailers, producers, agents, and consumers.
SymptomWatch
An AI-assisted mental health monitoring platform enabling daily symptom check-ins with risk scoring for clinical care teams supporting individuals with schizophrenia and related conditions.
Experience
Where I've built, led, and delivered.
Independent Software Engineer
Self-Employed · Dhaka
Building and maintaining open-source libraries (salt-theme-gen, react-native-salt) published on npm
Pedagogy Specialist & Lead Software Engineer
Automind IT · Dhaka
Led development of interactive digital learning content for the Sheikh Russel Digital Lab, funded by the Ministry of ICT, Bangladesh
Backend Developer & Data Engineer (Contract)
WorkingFromHammock · Netherlands (Remote)
Building the backend and data scraping pipeline for a travel guide platform connecting remote workers with destinations and workspaces
Tech Stack
Technologies and tools I work with.
Frontend
ReactNext.jsReduxReact RouterJavaScript (ES6+)TypeScript
Backend
Node.jsExpress.jsNestJSREST APIsWebSocketPython
Mobile
React NativeExpoCross-platform iOS & Android
AI / Data / Automation
PythonPandasNumPySciPyScikit-learnMatplotlib
Research & Academic Background
My PhD in Mathematics from South Asian University focused on high-accuracy numerical methods — the same deep analytical thinking I bring to engineering complex software systems. I've published peer-reviewed research and taught at university level, which strengthens my ability to break down hard problems, design algorithms, and communicate technical ideas clearly.
View Research →Let's Build Something Together
Whether you need a full-stack engineer, a data/AI solution, or a technical partner for your next product — I'd like to hear about it.