// get to know me
About Me
I'm a Product-Focused Full Stack Engineer with over 6 years of experience delivering production-grade SaaS platforms and microservices across e-commerce, healthcare, and edtech verticals.
My focus is on system design, performance optimization, and measurable business outcomes. I've architected offline-first applications, engineered Stripe subscription billing systems, and led CI/CD pipeline initiatives that cut deployment errors by 60%.
I thrive in fast-paced environments where engineering decisions directly impact product growth — shipping features across 10+ release cycles with zero missed deadlines.
// what I work with
Technical Skills
A deep, production-tested stack built across 6+ years of shipping real-world SaaS products.
Core Proficiencies
// where I've worked
Experience
- ▹Architected Dokane, a multi-module SaaS platform (POS, B2B, POD, Offline POS) with an offline-first sync engine using CouchDB + IndexedDB, enabling uninterrupted retail operations across 100+ locations during zero-connectivity scenarios.
- ▹Engineered a Stripe subscription billing system with webhook-driven lifecycle management — automated dunning, plan upgrades, and proration — reducing failed payment recovery time by ~40% across multi-tier SaaS products.
- ▹Decomposed a monolithic e-commerce application into Docker-based microservices (Laravel + Redis + Horizon), increasing deployment frequency from bi-weekly to on-demand and reducing inter-service coupling.
- ▹Built a production AI chatbot system using text embeddings and a vector database for semantic product search, reducing average customer support query resolution time by ~35%.
- ▹Delivered a Quran Academy LMS with live Zoom API integration, scaling to 500+ concurrent users without performance degradation.
- ▹Implemented GitHub Actions CI/CD pipelines across 6+ active projects, cutting deployment errors by 60% and eliminating manual release overhead.
- ▹Shipped 3 production B2B SaaS platforms — Inventory, Telemedicine API, and Fulfillment — serving logistics and healthcare clients across multiple regions.
- ▹Designed an offline-first Inventory SaaS using Dexie.js + CouchDB bidirectional sync, achieving 100% feature availability with zero server dependency for field teams.
- ▹Designed a Telemedicine REST API consumed by mobile clients, enabling remote patient consultations and reducing scheduling friction for 50+ medical providers.
- ▹Integrated AWS Cognito for multi-tenant authentication, supporting 1,000+ active sessions with secure, scalable role-based access control.
- ▹Containerized environments with Docker, reducing environment-related bugs by ~70% and cutting new-developer onboarding time in half.
- ▹Scaled and maintained 3 commercial SaaS products (POS, Booking System, HR Management) distributed on CodeCanyon, supporting 200+ independent businesses.
- ▹Integrated Stripe and PayPal payment flows into POS and booking platforms, enabling recurring billing and reducing checkout drop-off.
- ▹Refactored Vue.js frontend architecture with code splitting and lazy loading, improving average page load performance by ~35%.
- ▹Collaborated with international clients to translate business requirements into technical specifications, shipping features across 10+ release cycles with zero missed deadlines.
- ▹Built HRM, Merchandising, and Commercial Management systems from scratch using Laravel + jQuery, supporting 500+ employees across client organisations.
- ▹Integrated Google Drive API for automated document workflows, eliminating ~30% of manual data entry for operations teams.
// things I've built
Featured Projects
Production systems and SaaS products built with a focus on reliability, scalability, and measurable impact.
Dokane
Offline-First Retail SaaS
Multi-module POS, B2B, and POD SaaS platform with real-time cross-location sync and offline-first architecture for uninterrupted retail operations in low-connectivity environments. Powers 100+ retail locations.
AI Chatbot Builder
Semantic Search Engine
Semantic search chatbot trained on custom product and knowledge data. Embedding pipeline indexes content; vector similarity enables context-aware responses, substantially cutting support load by ~35%.
Stripe Subscription Engine
Automated Billing Lifecycle
Automated subscription lifecycle management — trials, upgrades, downgrades, dunning, and invoicing — integrated into three separate SaaS products with webhook-driven event handling.
Telemedicine REST API
Healthcare Platform
Fully stateless, token-authenticated API serving mobile health apps. Designed for horizontal scalability with multi-tenant data isolation, serving 50+ medical providers.
Inventory SaaS
Offline-First B2B Platform
Offline-first Inventory SaaS using Dexie.js + CouchDB bidirectional sync achieving 100% feature availability with zero server dependency for field teams.
Quran Academy LMS
Live Learning Platform
Learning Management System with live Zoom API integration for interactive Quran classes. Engineered to handle 500+ concurrent users without degradation using queue-based architecture.
// academic background
Education
B.Sc. in Computer Science & Engineering
Bangladesh University of Business and Technology
Graduated with a focus on software engineering, data structures, algorithms, and database systems. Built foundational knowledge that directly underpins modern SaaS development practices.
Diploma in Computer Science & Engineering
Jhenaidah Polytechnic Institute
Gained hands-on technical foundation in programming, hardware, and system design during a four-year polytechnic program — the launchpad for a career in full-stack engineering.
Continuous learner — staying current with emerging technologies through hands-on projects, open-source contributions, and production SaaS development.
// let's work together
Get In Touch
I'm currently open to new opportunities — whether it's a full-time role, freelance project, or technical consultation.
Contact Details
Phone
+880 171 070 665Location
Dhaka, Bangladesh · Open to Remote
GitHub
github.com/mrprantoOpen to senior full-stack roles, SaaS consulting, and remote contract work.