Languages
TypeScriptJavaScriptPythonGolangDart
Sabbir Rahman
Available for workCurrently fixing your vibe-coded $1M MRR SaaS
Just a developer trying to lock in. Building web and mobile applications using TypeScript, Next.js, Flutter, or whatever gets the job done. I care about clean interfaces, production-ready frontend systems, and practical full-stack workflows.
GitHub contributions
AprMayJunJulAugSepOctNovDecJanFebMarApr
986 contributions in the last year
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Tech Stack
Frontend
ReactNext.jsTailwind CSSFramer MotionReduxLeaflet
Backend & API
Node.jsExpress.jsFastAPIREST APIsWebSockets
Cloud & DevOps
AWS EC2AWS LambdaAWS S3CloudflareVercelDockerNginxGitHub Actions
Databases
PostgreSQLMongoDBMySQL
Mobile
FlutterFirebase
Architecture
Domain Driven DesignMicroservicesEvent-Driven ArchitectureReal-time SystemsScalable System Design
Developer Tools & Integrations
GitGitHubBashNeoVimObsidianRStudioStripen8n
Experience
GMGI IT Solutions Ltd
Lalmatia-Full-time
Frontend Developer
Apr 2025 - PresentBuilding government-backed surveillance, geospatial reporting, and real-time monitoring platforms.
- Led frontend architecture for EWARS and contributed across frontend/backend for the National Malaria Control Programme platform.
- Built live user tracking and zone-based health worker assignment for the Balumohal monitoring system.
Frontend Developer Intern
Jan 2025 - Mar 2025Improved R-based dashboards and supported product design for internal data collection tooling.
- Built an internal R package to speed up RShiny development.
- Contributed Figma UI/UX work for a data collection platform.
LaunchFast
Remote-Studio
Co-Founder & Full Stack Developer
Aug 2024 - PresentShipped 10+ client projects across hiring, SaaS, operations, integrations, and automation systems.
- Built geolocation matching, real-time chat, Stripe subscriptions, invoicing, reporting, and automated email workflows.
- Led frontend architecture for SaaS products with a focus on performance, UX consistency, and reusable systems.
Mahidol Oxford Tropical Medicine Research Unit
Remote-Contract
Assistant Web Developer
Mar 2025 - Dec 2025Led frontend development for CommicPlan, a Global Fund-funded data collection and community platform.
- Built scalable frontend architecture for commicplan.com and the community portal.
- Mentored junior developers and kept delivery focused across a large research-backed product.
Featured Projects
A tighter landing selection focused on product work, internal systems, and launch-ready software builds.
2025
QuickHire
UK geolocation-based hiring platform
A city-first hiring marketplace for local employers and nearby candidates across UK service markets.
FrontendBackendPostgreSQLStripe+1 more
View case study
2026
TraxNYC
Premium ecommerce platform
A luxury storefront with real-time operations for products, orders, support, and offer management.
Next.jsFirebaseAdmin CMSLive Chat+1 more
View case study
2026
Droplink
Multilingual SaaS acquisition engine
A multilingual growth website built to turn SEO traffic into qualified SaaS signups.
Next.jsTailwind CSSMultilingualSEO Metadata+1 more
View case study
2026
X Engage Bot
AI-assisted brand engagement automation
An automation system that helps brands stay visible on X without building heavy social infrastructure.
Node.jsOpenClaudeGitHub ActionsCron Jobs+1 more
View case study
2025
Early Warning Alert System for Disease Outbreaks
Disease surveillance, case prediction, and officer alerting.
A monitoring platform for outbreak detection, LLM-assisted case forecasting, risk-area mapping, alerts, and reporting across public-health operations.
FrontendBackendDatabaseRisk Prediction+1 more
View case studyLatest Writing
All posts27 Apr 2026
Backend Testing That Actually Catches Production Failures
A practical deep dive into testing SaaS backends with pytest and k6 against duplicate submissions, weak validation, rate-limit gaps, oversized payloads, and database abuse.
Backend TestingSaaSPytest
16 Nov 2025
Macrotask vs Microtask in Node.js
A practical guide to event loop ordering, Promise callbacks, and process.nextTick.
Node.jsEvent LoopJavaScript
Let's Work Together
Get in Touch
Choose your preferred method to connect and let's discuss your project.
Schedule a free call30-minute strategy sessionsabberrahman.contact@gmail.comQuick inquiries and questionsWhatsAppQuick messages and project chats
Response within 24 hours - Available for hire