Amit R.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I’m a Lead Full-Stack Software Engineer with 10+ years of experience building scalable web applications, mobile applications, SaaS platforms, marketplaces, APIs, microservices, and AI-powered solutions. I have extensive experience working in global MNC environments on large-scale enterprise products, including Intellectual Property and Patent Services platforms where accuracy, security, scalability, and performance are critical. Along with enterprise products, I have worked on and built solutions across multiple business domains, including: • eCommerce and multi-vendor marketplaces • Food ordering and delivery platforms similar to Zomato-style applications • Taxi, ride-booking and driver applications similar to Uber-style platforms • Delivery and logistics platforms • Real-time driver and order tracking • Restaurant and merchant management systems • Product catalogue, inventory and stock management • Shopping cart and checkout systems • Online payments and wallet integrations • Loyalty, referral and promotional systems • Booking and service platforms • Admin dashboards and analytics • SaaS and subscription-based applications I can handle the complete product development lifecycle — from understanding business requirements and designing architecture to backend development, frontend development, database design, integrations, deployment and production support. My core technology stack includes: • NodeJS, NestJS, Express and TypeScript • ReactJS, NextJS and VueJS • PostgreSQL, MongoDB and MySQL • Redis and Valkey • REST APIs and WebSockets • SocketIO and real-time communication • AWS, ECS, Fargate, EC2, S3 and CloudWatch • Docker, CI/CD and Microservices • React Native and Firebase • Python and AI-based microservices I also have strong hands-on experience building AI and intelligent automation solutions, including: • AI and LLM integrations • OCR and document understanding • Intelligent document processing • PaddleOCR and TensorFlow • GPU-powered AI services • Large PDF and image-processing pipelines • Automated document analysis workflows • Queue-based and asynchronous processing • Performance and scalability optimization My enterprise experience also includes complex Patent and Intellectual Property solutions involving document processing, digital proofreading, patent workflows, claims and specification processing, OCR, data extraction and workflow automation. As a technical lead, my responsibilities also include: • Designing scalable application architecture • Converting complex requirements into technical solutions • Leading full-stack development • Code and architecture reviews • Mentoring developers • Coordinating with Product, QA and Engineering teams • Sprint planning and release management • Production troubleshooting • Performance and scalability improvements I’m equally comfortable taking over an existing application or building a new product. If you already have a product in development, I can audit the existing codebase, understand what has already been built, reuse the right components, fix architectural and performance issues, develop missing features, integrate third-party services or AI capabilities, and help move the application successfully to production. I focus on clean architecture, maintainable code, scalability, performance, clear communication and reliable delivery. If you need an experienced Full-Stack Engineer or Technical Lead who can take ownership of both the technical and product side of development, I’d be happy to discuss your project.