Carriage is a US venture behind a traveler help app: land somewhere you do not speak the language, turn on your dots and find people nearby who share a language and are willing to help. It was built over an eighteen month engagement, milestone by milestone, from an empty navigation shell to a released version 1.8.0.
এমন কোথাও নামলেন যেখানকার ভাষা আপনি জানেন না, চারপাশে সাহায্য আছে অথচ নাগালের বাইরে। Carriage সেটিকে নাগালে আনে: নিজের ডট চালু করুন, দেখুন কাছাকাছি কারা আপনার ভাষা জানেন এবং সাহায্য করতে রাজি, একজনের কাছে এগিয়ে যান, আর তিনি সম্মত হলে বার্তা পাঠাতে, কল করতে বা সামনাসামনি দেখা করতে পারেন। একক ডেভেলপার হিসেবে React Native অ্যাপ ও NestJS GraphQL ব্যাকএন্ড দুটিই তৈরি করা হয়েছে, খালি নেভিগেশন শেল থেকে শুরু করে সোশ্যাল লগইন, প্রোফাইল, নির্দিষ্ট পরিধিতে খোঁজা, অ্যাপ্রোচ প্রবাহ ও বার্তা আদান প্রদান পর্যন্ত, ধাপে ধাপে সরবরাহ করে। দেড় বছরে একটানা একটি চুক্তিতে এগারোটি মাইলফলক গৃহীত হয়েছে, শেষ হয়েছে ১.৮.০ সংস্করণে।
Al-Insaf is a registered cooperative society in Monirampur, Jessore, providing fair microfinance and savings services to small traders. Founded in 2022, it runs member savings, loans and investor capital across branches, and moved that work from paper and spreadsheets onto a single auditable platform.
At WorkflowFiesta, I worked as engineering lead on an AI workflow automation platform, owning the product line end to end and directing a distributed engineering team. My work covered agent-driven workflow design, large language model integration across multiple providers, and durable orchestration for long-running jobs that resume rather than lose state on failure. I worked across a multi-tenant architecture with per-tenant isolation, contributing to feature delivery, performance work and the release process. I partnered closely with product and QA to turn complex automation requirements into reliable, maintainable systems.
At Edulog, I work as a full-stack engineer on Athena, a cloud-native K-12 student transportation platform. I develop and optimize scalable software that helps districts streamline bus routing, trip planning, and fleet management. My responsibilities include debugging complex issues, building new modules like Field Trip Management, enhancing admin dashboards, and ensuring smooth integration between routing algorithms, mapping systems, and parent/driver portals. I collaborate across backend, cloud infrastructure, and frontend interfaces to deliver efficient, reliable, and user-friendly solutions that improve operational efficiency, safety, and parent communication.
At TestFiesta, I work as a full-stack engineer improving reliability, performance, and overall platform quality for a highly asynchronous, distributed system. My role spans debugging complex issues across frontend rendering, Node.js services, PostgreSQL queries, and background workers, ensuring the platform runs smoothly at scale. I collaborate with QA and UI/UX teams to reproduce edge cases, refine user experience, and deliver consistent, high-impact fixes. In my first month, I helped resolve more than 50 major issues, strengthening system stability and elevating the product’s performance for end users.
I work at Rocksteady Technology as a full-stack engineer supporting major enterprise platforms like Edulog Athena and TestFiesta. I diagnose and resolve complex issues across frontend interfaces, backend APIs, distributed microservices, and Temporal-powered background workflows. I contribute to new feature development, performance optimizations, and architectural enhancements while collaborating closely with engineering, QA, and product teams to ensure high reliability and scalable system performance.
I have been leading Fully Booked as a solo full-stack developer since day one, building the platform entirely from the ground up. This includes cross-platform mobile apps for minibus operators using React Native with Expo, an admin dashboard built with React.js, a customer enquiry website, and a JavaScript booking widget that integrates into any external site. The backend is powered by NestJS and MongoDB, all deployed via Docker on DigitalOcean. The platform is fully scalable, performant, and designed for a seamless user experience