Redesigned the invoice pipeline to convert ~10 lakh XML invoices to PDF in ~1 hour (previously ~5 days). Throughput: ~1,000,000 PDFs/hour (~278/sec), ~120x faster. Uses Kafka batching & partitioning, compressed data passing, Redis caching & tokens, XML parser + iText7.

Built a production Robi WiFi project with a modern JS stack, focusing on fast page loads, secure APIs, and smooth user flows. Designed Next.js app structure and stable, secure API layer with NestJS featuring auth, role-based access, and rate limiting.

Development of a corporate website for Robi and Airtel with a focus on responsive design and integration of crucial services. Built with Next.js and Material UI for the frontend, and Nest.js with a proxy server for backend API integration.

Emergency Balance Solution allowing telecom clients to access emergency funds. Developed scalable microservices with PostgreSQL, managed database integrations, and used Kafka for real-time communication between services.

Mobile Finance Service enhancing payment and financial transaction capabilities. Designed microservices for fund addition, bill payments, and QR code transactions. Collaborative development with First Security Islamic Bank.

Digital Finance Service providing comprehensive financial solutions. Contributed to core modules including fund transfer services and middleware integration, notification services, customer portal with mobile recharge and statement viewing.

A SaaS and OTT project built with Java Spring Boot and Angular JS with MySQL. Features IVR, call queue, and messaging functionalities for seamless business communication.

A SaaS project built with Laravel and Nuxt JS with MySQL. Integrates with Google Analytics, AWS, and SQS to provide advanced SEO analytics and reporting.

A financial management tool built with Express and Nuxt JS using Firebase. Leverages Dwolla and Plaid APIs for secure and seamless financial transactions.

A Q&A platform similar to StackOverflow, built with Laravel and Vue JS with MySQL. Users can ask and answer questions, upvote answers, and earn reputation points.

An insurance product website built with CodeIgniter and MySQL. Offers various insurance policies including life, travel, auto, and home insurance with seamless online management.