Full-Stack & Mobile App Engineer · SaaS · MVP · App Fix
Build apps that scale. Turn ideas into profit. Loved by Users, Built for Revenue
Specializing in SaaS platforms, mobile app development, Web app development, and production-ready systems — from zero to thousands of users.
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Production Systems Delivered
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Collaborated
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Full Featured Products Shipped
Work History
Experience
Full Stack Developer
Math Solutions Zone
- ▸Led the architecture, development, and production launch of the MSZ platform—an AI-powered mathematics tutoring ecosystem—serving 400+ active students, educators, and administrators.
- ▸Built and launched a real-time AI Math Solver Chat system (Bangla & English) with step-by-step solutions, image support, and advanced tracking, used by 300+ students.
- ▸Designed and implemented a secure, scalable backend (Node.js, Express, TypeScript, Firebase) and robust admin panel for managing 10+ classes, exams, and analytics.
- ▸Delivered a cross-platform mobile app (Expo, React Native, TypeScript) for iOS, Android, and web, providing universal access to all MSZ features.
- ▸Created a customizable, open-source Next.js + Tailwind CSS portfolio and landing page for product launches and community engagement.
- ▸Established CI/CD pipelines, automated testing, analytics, and error monitoring—reducing downtime by 40% and improving release efficiency.
- ▸Implemented strict role-based access control (Admin, Teacher, Student) using Firebase Auth, securing 300+ user accounts and supporting multi-tenant data isolation.
- ▸Developed analytics dashboards tracking 7+ daily interactions, student performance, and topic mastery for continuous improvement.
- ▸Future-proofed the platform for advanced AI and real-time collaboration, continuously optimizing architecture and UX based on real-world usage.
Full Stack Developer
Autoworx
- ▸Implemented web push notifications for Safari, Chrome, and iOS using OneSignal — directly improving user re-engagement.
- ▸Audited and removed unused packages across the entire frontend codebase, reducing build time by 1.5% and improving developer experience.
- ▸Resolved critical UI bugs with direct user-facing impact, improving product stability and user trust.
Web & Application Developer
Cocoon
- ▸Migrated the entire platform from Gatsby.js to Next.js and Drupal to Strapi — reducing load time and dramatically improving maintainability.
- ▸Built and integrated 400+ REST APIs with Strapi and 100+ custom APIs to power a B2B product platform.
- ▸Refactored 50+ static HTML pages into dynamic, fully responsive React.js applications.
- ▸Integrated Algolia for advanced full-text search across a large B2B product catalog.
- ▸Integrated CircleCI for automated monitoring and a UK-based payment gateway for secure transactions.
Case Studies
Real Problems. Real Solutions.
Each project here was a production challenge — not a coding exercise. Here's what the problem was, how I solved it, and what shipped.
MSZ Education Platform
A connected education system with admin operations, student mobile access, and a public-facing portfolio site.
Student mobile app included · Mobile student experience
Problem
MSZ needed one product ecosystem instead of disconnected tools: an admin panel to manage operations, a student mobile app for daily use, and a portfolio website to present the organization clearly online.
Solution
Built the project as a connected multi-surface system with an admin dashboard for internal management, a mobile app focused on the student experience, and a portfolio site to communicate the brand and offerings publicly.
Results
- ✓Admin workflows moved into a dedicated internal panel
- ✓Students got a mobile-first experience for day-to-day use
- ✓Public portfolio presence aligned with the product ecosystem
- ✓Single project delivery across internal, mobile, and public-facing surfaces
Fitraat Focus - Deep Work System
A free, cross-platform deep-work practice with a 5-step loop, purpose-driven planning, and real session accountability.
One Expo codebase shipped across iOS, Android, and web · Expo Router + Firebase
Problem
People do not fail deep work because they lack a timer. They fail because they sit down unprepared, with noisy task lists and no proper close. Most productivity tools either distract with gamification or hide meaningful features behind subscriptions.
Solution
Built Fitraat Focus as a complete practice: plan the day, pass a five-pillar pre-check (time, space, energy, resources, intention), activate, focus, close, and reflect. Added Purpose Systems so real work can be authored as sections/tasks in a studio, then followed in the app. Kept the core product free with optional support instead of premium gating.
Results
- ✓Shipped a full deep-work system across web, Android, and iPhone experience
- ✓Connected planning, timed focus, close, and reflection into one repeatable loop
- ✓Enabled creator-authored Purpose Systems with studio + app workflow
- ✓Delivered free core access with optional support flows for sustainability
Fitraat — Behavioral SaaS Platform
Helping adults break addictive patterns with structured 40-day programs
Mobile app included · React Native / Expo
Problem
Needed a full SaaS platform to deliver structured behavioral change programs — with daily task unlocking, progress tracking, emergency support, a community feed, and a payment gateway, across both web and mobile.
Solution
Built the entire platform from scratch: Next.js web frontend, React Native mobile app (Expo), and a Strapi backend deployed on AWS (EC2, S3, RDS). Implemented SSL Commarz payment gateway, 40-day task unlock system, real-time feed, and pro membership flow.
Results
- ✓Full SaaS with free & paid tiers live in production
- ✓SSL Commarz payment gateway integrated and processing real transactions
- ✓React Native mobile app shipped alongside the web platform
- ✓Deployed on AWS — EC2, S3, RDS handling real user traffic
Capabilities
Built for Real-World Systems
Not just a list of technologies — these are tools I've used in production environments.
Frontend Systems
Backend Architecture
Data & Storage
Cloud & DevOps
Integrations
Education
Academic Background
BSc in Computer Science & Engineering
European University of Bangladesh
2020 – 2024
Social Proof
Trusted by Clients & Teams I've Shipped For
Worked with
Autoworx
Cocoon
MSZ3+
Companies Worked With
2
Featured Products Shipped
2+
Years of Experience
2 featured production case studies
Fitraat and MSZ are presented as shipped products across web, admin, Android, and iOS surfaces rather than tutorial-style demo work.
3 teams and clients worked with
The portfolio currently shows work delivered for Autoworx, Cocoon, and MSZ across product, migration, and platform engineering contexts.
Production-focused delivery
The emphasis here is on maintainability, shipped systems, and multi-surface product work instead of one-off clone projects or generic landing pages.
Available for Work
Looking for a Developer Who Actually Delivers?
I build production-ready systems — not prototypes. If you need a developer who understands the full stack and can ship real products, let's talk.