About Raj
I help startups and growing businesses build scalable, high-performance web applications with clean architecture and production-ready code.
As a Full-Stack Developer with strong backend specialization, I design and develop end-to-end solutions using Next.js, Node.js, React, Mysql, Postgresql, and MongoDB. I’ve built AI-powered platforms, payment-integrated SaaS products, inventory systems, bulk email tools, and REST APIs for web and mobile applications.
What sets me apart is my combination of solid system design, API architecture expertise, and strong Data Structures & Algorithms foundation (700+ problems solved across LeetCode & GFG). I focus on performance optimization, secure authentication, scalable database design, and seamless payment integrations.
I typically handle:
- Full-stack SaaS development (frontend + backend)
- REST API development & integrations
- AI-powered application development
- Payment gateway integration
- Dashboard & analytics systems
- Database & Performance optimization
- PDF generation, bulk data processing, Excel imports
If you need a developer who understands both product thinking and clean engineering principles and can deliver production-ready solutions efficiently, I can help.
English
Native or bilingual
Can work on-site
San Francisco (up to 50km)
Experience
- FreelancerFullStack DeveloperTECHAugust 2024 - Today (2 years)Surat, India• • Create AI powered AI interview platform (Assessly) using Nextjs, Nodejs, Mongodb and Gemini API• • Create Bulk email sender (Mailone) for sending bulk marketings emails using Nextjs, Nodejs, Mongodb• • Built a web-based Inventory Management System with authentication, email verification, billing, product, category, brand, and profile management using React.js, Node.js, MongoDB, and Material UI.• • Created dashboard with Top Categories, Monthly Sales, Total Sales, Total Bills charts• • Also implemented bulk product uploads via Excel imports and invoice PDF generation• • Developed GST Tax Calculator to compute multiple e-commerce platform GST at once• • Created APIs for Farm Booking Flutter app using Node.js and MySQL
- Infyom TechnologiesBackend DeveloperMay 2023 - August 2024 (1 year and 3 months)• • Integrated Stripe & Razorpay payment gateways, Google reCAPTCHA, Added NFC card and localization support and one-click Database update feature using Laravel into InfyVcard – Digital Business Card Platform• • Also Led the development team, collaborated with the QA team, managed timely releases, and assisted customers with technical issues• • Reduced page load time by the implementation of custom server-side pagination with MySQL and JavaScript in to Shining Qualities - Wholesale Diamonds For Jewellers and Designers• • Reduced invoice PDF generation time using JavaScript iframe, Added Thermal print feature, Delivery Challan Transaction Module, Estimate/Quote Transaction Module, Refactored the entire Settings Module, into Hisab-Kitab Accounting Software• • Developed REST APIs for Hisab-Kitab mobile app
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Education
- MCAJain Online University2025MCA
- BCAVeer Narmad South Gujarat University2023BCA
Certifications
- Nodejs ExpertLinkedin Learning2025