Full-Stack Web App Development
MERN / Next.js
End-to-end web products — architecture, UI, APIs, database and deployment — built to be fast, secure and easy to scale.
Ideal for: Startups launching an MVP
MERN Stack Developer and AI Integration Engineer
Building high-conversion MERN + AI products.
I'm Ajay Madhpuriya, a Full-Stack MERN Developer currently working as a Freelancer. I build fast, scalable applications with MongoDB, Express.js, React, Node.js, and Next.js while integrating AI features like chat assistants, smart search, and workflow automation.
- Experience4+ Years
- FocusMERN + AI
- Current RoleFreelancer
ajay.profile.tsx
Ajay Madhpuriya
Full-Stack · MERN + AI
const ajay = {
stack: ["MERN", "Next.js"],
ai: "LLM-powered features",
status: "available",
};React
NestJS
AI
MongoDB
High-Impact Delivery
From MVP to Scaled Product
MERN + AI
Modern Web and Intelligent Features
Global Freelance
Open for Global Client Projects
Trusted work for
- Flipkart
- ACKO
- Swysh
- FliprLabs
About Me
Freelance MERN Developer building scalable products with modern AI integrations.
I work with startups and growing teams to design and ship production-ready web applications using MongoDB, Express, React, Node.js, and Next.js.
From architecture to deployment, I focus on performance, maintainability, and user experience. I also implement AI features like assistants, intelligent search, and workflow automation to improve business productivity.
- Focus: MERN + AI
- Engagement: Freelancer (Available)
- Indore, India · Remote worldwide
- B.Tech, Computer Science
0+
Years of experience
Intern → Senior at Flipr
0+
Production projects
Flipkart, ACKO, Swysh & more
0
Platforms shipped
Web · Mobile · Desktop
Services
What I can build for you
Focused, outcome-driven services for founders, agencies and product teams.
AI Feature Integration
OpenAI · Groq · LLM APIs
Chatbots, smart search, content generation and workflow automation wired into your product with real business value.
Ideal for: Products adding AI features
Admin Dashboards & SaaS
Multi-role · Analytics
Role-based admin panels, analytics dashboards and subscription-ready SaaS platforms with clean, intuitive UX.
Ideal for: SaaS founders & ops teams
Mobile Apps
React Native · Android & iOS
Cross-platform mobile apps sharing logic with your web stack — one codebase, native feel, faster time to market.
Ideal for: Businesses going mobile
Payment & Third-party Integrations
Razorpay · Cashfree · DocuSign
Secure checkout, subscriptions, webhooks, e-signatures and external APIs integrated reliably with proper error handling.
Ideal for: Marketplaces & booking apps
API & Backend Architecture
NestJS · GraphQL · REST · WebSockets
Well-structured, documented backends with auth, real-time features and data models designed for growth.
Ideal for: Teams needing a solid backend
Skills
Technology Icon Stack
33 technologies I use to ship production-grade products.
- React
- Next.js
- TypeScript
- JavaScript
- Tailwind
- Redux Toolkit
- Zustand
- Framer Motion
- Bootstrap
- Material UI
- Node.js
- Express.js
- NestJS
- GraphQL
- REST APIs
- Socket.IO
- JWT
- MongoDB
- PostgreSQL
- MySQL
- MariaDB
- Redis
- Docker
- AWS
- Nginx
- Vercel
- GitHub
- OpenAI API
- Postman
- Bruno
- Cursor
- Antigravity
- Strapi
Projects
Featured Case Studies
Real-world production systems engineered for scale, high concurrency, and AI automation.
FliprLabs
Production System
FliprLabs Developer Platform
Built a large-scale hackathon and developer engagement platform with social networking, real-time chat, payments, and desktop monitoring.
Supports heavy concurrent user traffic with secure workflows.
Next.jsNestJSGraphQLWebSocketsElectronRazorpay
Click for Deep Dive
FCAT
Production System
FCAT — AI MCQ Platform & Resume Builder
Developed an AI-powered platform that generates dynamic test papers and ATS-friendly resume suggestions with role-specific content.
Reduced manual question and resume drafting time significantly.
ReactNestJSGraphQLMongoDBGroq APIAI
Click for Deep Dive
Swysh
Production System
Swysh Court Booking App
Delivered a real-time pickleball court booking product for web and mobile with race-condition prevention for concurrent booking requests.
Prevents double bookings and ensures secure payment flow.
ReactReact NativeNode.jsExpressMongoDBRazorpay
Click for Deep Dive
ACKO
Production System
ACKO Awards Voting Platform
Engineered a high-traffic voting platform for a major car & bike awards event with reliable vote ingestion and optimized winner calculations.
Maintained performance and reliability during peak voting hours.
Next.jsRedux ToolkitStrapiPostgreSQLREST API
Click for Deep Dive
Flipkart
Production System
Flipkart Pallet Mapping System
Built a QR-enabled parcel-to-pallet mapping and real-time tracking system to improve logistics visibility and eliminate misallocation.
Improved operational accuracy with real-time tracking updates.
ReactTypeScriptNode.jsExpressMongoDBQR
Click for Deep Dive
Experience
Career Timeline & Git Log
4+ years of shipping scalable codebases, leading architecture, and delivering client wins.
active2026 — PRESENT
Freelance MERN & AI Developer
Self-Employed / Independent·Global Remote
$
Architecting end-to-end MERN & Next.js web applications for global startups and agencies.
$
Engineering custom AI features: LLM chatbots, automated evaluation, dynamic test paper generation & intelligent workflows.
$
Leading technical discovery, sprint planning, cloud deployments, and direct client deliverables.
Next.jsNestJSReactNode.jsMongoDBAI APIsPostgreSQL
branch: freelanceverified
delivered02/2023 — 01/2026
Senior Software Developer
Flipr Innovation Labs·Bangalore / Remote
$
Designed and delivered enterprise scalable systems including FliprLabs platform, Swysh court booking, and ACKO voting engine.
$
Built resilient NestJS backends with GraphQL Code-First approach, WebSockets, and Redis pub/sub.
$
Spearheaded desktop client 'FConnect' with ElectronJS and scheduled background telemetry.
$
Mentored junior engineers, established TypeScript conventions, and optimized DB query performance.
NestJSGraphQLElectronJSWebSocketsRazorpayDockerPostgreSQL
branch: product-coreverified
promoted02/2020 — 02/2023
Junior Software Developer & Intern
Flipr Innovation Labs·Indore / Remote
$
Transitioned from Intern to Junior Developer, building full-stack web modules with React and Node.js.
$
Executed project-wide migration to TypeScript, improving system maintainability and type safety.
$
Engineered secure authentication systems with JWT and state management with Redux Toolkit / Zustand.
$
Developed high-traffic QR mapping and tracking system for Flipkart logistics operations.
ReactTypeScriptNode.jsExpress.jsMongoDBRedux ToolkitJWT
branch: career-growthverified
Process
How I Work & Deliver
A predictable, transparent 4-stage engineering sprint to take your idea from concept to live production.
01
1–2 Days
Discovery & Alignment
We unpack your vision, target audience, core user stories, tech stack requirements, and timeline goals over a focused discovery call.
Key Deliverable
Scope clarity & technical roadmap
02
2–3 Days
Plan, Architecture & Estimate
I prepare database schemas, API specs, interactive component breakdown, and transparent milestone-based deliverables with upfront pricing.
Key Deliverable
Sprint breakdown & fixed milestone contract
03
1–4 Weeks
Iterative Build & Weekly Demos
Agile development with clean TypeScript, reusable UI modules, automated tests, and live staging previews with end-of-week video demos.
Key Deliverable
Weekly staging branch & feedback loop
04
Ongoing
Launch, Handover & Support
Zero-downtime production deployment, CI/CD pipeline setup, comprehensive documentation, 100% source code handover, and 30-day post-launch warranty.
Key Deliverable
Full IP transfer, live app & 30-day support
Why Hire Me
Flexible Engagement & Zero-Risk Partnership
Work with an engineer who communicates like a founder and executes with enterprise-grade rigor.
Most Popular for MVPs
Fixed-Price Milestones
Defined scope, crystal-clear deliverables, and fixed milestone deadlines. You only pay when deliverables meet acceptance criteria.
- Detailed scope document
- Zero hidden surprise costs
- Guaranteed delivery date
Ideal for Scaling Teams
Dedicated Monthly Retainer
Full-time or part-time engineering bandwidth dedicated to your product sprints, ongoing feature iteration, and rapid bug triage.
- Dedicated weekly hours
- Direct Slack/Discord access
- Seamless sprint alignment
Async + Real-Time
Proactive Communication
Never wonder what's being built. Daily async status updates, weekly Loom demo recordings, and overlapping hours with US/EU/UK time zones.
- Loom / video walk-throughs
- 24hr response SLA
- Time zone flexible
Clean Handover
100% IP & Code Ownership
All intellectual property, repositories, cloud credentials, schemas, and assets belong exclusively to you from day one.
- Mutual NDA protection
- Well-documented repo
- Dockerized deployment configs
FAQ
Frequently Asked Questions
Everything you need to know about working together, pricing models, and timelines.
Most production-ready MVPs take 2 to 6 weeks depending on feature depth (user auth, database schemas, AI integrations, payment gateway). For smaller feature sprints or API microservices, turnarounds can be as rapid as 3 to 7 business days. Every project starts with a detailed milestone schedule so you always know what to expect.
Category: Timeline
Contact
Let's build your next MERN + AI product
Ready to discuss your project? Drop your requirements below or reach out directly.
Available for Q2/Q3 Freelance Projects
Have an MVP, redesign, or AI integration in mind?
I partner with early-stage founders, agencies, and enterprise innovation labs to build battle-tested web apps and AI-powered product experiences.
Quick Response SLA
Average reply in under 4 hours
Direct Email
ajay.madhpuriya.codes@gmail.com