Web apps · Mobile apps · Automation · AI integrations

I build digital systems that turn messy operations into scalable products.

I’m Hasib, a full-stack developer helping businesses launch web apps, mobile apps, SaaS platforms, dashboards, automations, and AI-powered workflows.

Book a free 15-min project audit→See selected work
Capability stackAvailable for $500+ projects

SaaS architecture

Multi-tenant systems, dashboards, payments

Mobile products

Expo apps, maps, subscriptions, OTA updates

AI workflows

OpenAI, Claude, image pipelines, automation

Production delivery

CI/CD, Docker, cloud, security-minded APIs

Services

Built for business outcomes, not decorative code.

01

Web app development

Customer portals, SaaS dashboards, admin panels, booking systems, marketplaces, and internal tools built for real business workflows.

02

Mobile app development

Cross-platform iOS and Android apps with Expo/React Native, subscriptions, maps, push notifications, and production deployment support.

03

Automation & AI integration

AI chat, content generation, image pipelines, operational automation, payment workflows, notifications, and API integrations.

Selected work

Systems with real product complexity.

The strongest projects combine backend architecture, product thinking, third-party integrations, and reliable deployment.

Multi-tenant eCommerce SaaS

qCommerz

Next.js · Express · MongoDB · Redis · Docker · AWS S3 · SSLCommerz · bKash

Flagship SaaS architecture case study

Helps merchants launch online stores quickly with payments, courier integrations, notifications, and extensible operations tooling.

  • Designed scalable multi-tenant architecture
  • Automated tenant onboarding, domains, DNS, and deployment flow
  • Built plugin-ready integration system with 20+ business integrations

AI platform

Shmooz AI

Angular · NestJS · MongoDB · Stripe · Socket.IO · OpenAI · Claude

AI product and payment workflow case study

Backend architecture for AI chat, file handling, image generation, image-to-image, upscaling, subscriptions, and real-time product features.

  • Planned platform architecture and backend service structure
  • Built AI chat and image generation pipelines
  • Integrated payments and real-time communication workflows

Cross-platform mobile app

Mikvah Tracker

React Native · Expo · Node.js · MongoDB · Google Maps · RevenueCat

Mobile app, subscriptions, maps, and notifications

Mobile app experience with location features, reminders, authentication, multilingual support, and subscription handling.

  • Led backend planning and core feature development
  • Implemented notification cron jobs and business logic
  • Collaborated on iOS/Android production app features

Credibility for clients who need more than a landing page.

Senior Full Stack Developer at Nukta Solutions
Lead Developer at EWS Automation LLC
Production experience across SaaS, mobile, payments, AI, and cloud workflows
Backend-heavy full-stack builder with team leadership experience

Process

Clear path from rough idea to shipped product.

Step 1

Map the business workflow

Step 2

Design architecture and delivery plan

Step 3

Build the core product iteratively

Step 4

Deploy, test, and improve with real feedback

Start here

Have a product or workflow worth improving?

Book a quick audit call or send a short note about what you want to build or fix. I can review the workflow, suggest the most practical next step, and outline a realistic build plan.

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Best-fit projects

  • • Web or mobile app projects starting from $500+
  • • SaaS MVPs, dashboards, portals, internal tools
  • • Payment, subscription, booking, and notification systems
  • • AI features and automation where they create practical leverage
  • • Free first-pass project/workflow audit before scope discussion

Md Hasibul Hasan

Full-stack developer · Dhaka, Bangladesh

cal.com/hasib · cbhasib.com · linkedin.com/in/cbhasib

Recommended domain: portfolio.cbhasib.com or work.cbhasib.com