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Shubham Kumar User

@shubhamkumaruser1

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I build production SaaS and AI-powered web applications across React, Angular, Next.js, Node.js, and FastAPI.

India

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What I'm looking for

I'm looking to build production SaaS, AI-powered, and customer-facing applications where I can own features end to end, improve architecture and performance, and collaborate with distributed cross-functional teams.

I've built production SaaS, enterprise, AI-powered, and customer-facing applications at smartData Enterprises, including scalable frontend and backend architectures with React, Angular, Next.js, Node.js, and FastAPI.

I founded and built MyNextPage, a micro SaaS platform that helps Indian small businesses and creators launch mobile-first websites without coding. I delivered its drag-and-drop builder, smart blocks, lead capture, booking and WhatsApp workflows, Razorpay subscriptions, analytics, authentication, and CI/CD deployments.

I've also contributed to Storied's family history platform, Previnci's healthcare benefits portal, and AstroPush's consumer astrology platform. My work includes reusable component systems, REST APIs, real-time Socket.io interactions, SEO, responsive UX, and performance improvements.

I take features from requirements and architecture through testing, deployment, and production support, collaborating closely with distributed engineering, QA, product, and business teams.

Experience

Work history, roles, and key accomplishments

Senior Full Stack Developer

SmartData Enterprises Ltd.

Apr 2021 - May 2026 (5 years 1 month)

Architected production SaaS, enterprise, and AI applications using React.js, Angular, Next.js, Node.js, and FastAPI. Built reusable components, implemented state management, and automated E2E testing with Playwright.

React Angular Next.js NodeJS fastAPI Redux toolkit Zustand Tanstack Query NgRX RxJS Playwright CI CD REST APIs Authentication Performance Optimization

MEAN & MERN Stack Developer

Wadhim Solutions Pvt. Ltd.

Jun 2020 - Apr 2021 (10 months)

Developed responsive dashboards, admin panels, and business applications using Angular, React.js, and Node.js. Implemented state management with NgRx and RxJS and integrated RESTful APIs.

Angular React NodeJS NgRX RxJS HttpClient REST APIs Responsive Design Performance Optimization

Full Stack Developer

StackAsian IT Solutions Pvt. Ltd.

Nov 2018 - Apr 2020 (1 year 5 months)

Developed web modules and reusable UI components using Angular and Node.js for business applications. Built and integrated RESTful APIs and implemented lazy loading for performance.

Angular NodeJS REST APIs Lazy Loading Modular Architectures Performance Optimization