Ayush Kumar — Expert Freelance Full Stack, Mobile App & AI Developer from India
Available for new projects

Hi, I'm Ayush Kumar

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I build high-performance, visually stunning digital products — from responsive web apps to cross-platform mobile experiences. 3+ years freelancing, 50+ products shipped.

3+
Years Experience
50+
Products Shipped
6
Core Services
100%
Client Satisfaction

$ whoami

Hello! My name is Ayush and I enjoy creating things that live on the internet. I have been freelancing for over 3 years, during which I have successfully deployed 50+ websites and mobile applications for a diverse range of clients.

I am currently seeking a full-time opportunity where I can contribute my skills to an innovative team.

Crafting Digital Experiences

My interest in development started back in 2018. My main focus these days is building high-end, high-performance digital experiences that scale.I thrive at the intersection of clean architecture and beautiful design — writing code that's as elegant as the interfaces it powers.

React / Next.js95%
React Native / Expo88%
Node.js / APIs85%
TypeScript82%
UI / Motion Design78%

Expertise & Services

End-to-end capabilities — from architecture to pixel-perfect interfaces.

🌐
Web Development
Crafting high-performance, responsive websites with modern frameworks like Next.js, React, and sophisticated CSS architectures.
📱
App Development
Building seamless, cross-platform mobile applications using React Native and Expo for a native-like experience on iOS and Android.
Full Stack Development
Designing end-to-end solutions, from scalable backend architectures and databases to polished, user-centric frontend interfaces.
🎨
WordPress Development
Developing custom, high-converting WordPress themes and plugins with a focus on speed, SEO, and user-friendly content management.
🤖
AI Integration (Meta AI)
Integrating cutting-edge AI capabilities and automation workflows into digital products to enhance user engagement and efficiency.
🛒
E-Commerce (Shopify)
Creating premium, high-converting Shopify stores with custom liquid development and deep integration of third-party apps.

// FULL TECH STACK

React
Next.js
TypeScript
Node.js
React Native
Expo
Java
REST API
Vanilla CSS
MongoDB
Firebase
WordPress
Shopify
Tailwind
Framer Motion
GSAP
Prisma
PostgreSQL
Meta AI
MySQL
Supabase
NoSQL
Bootstrap
SpringBoot
Rust
Go
React
Next.js
TypeScript
Node.js
React Native
Expo
Java
REST API
Vanilla CSS
MongoDB
Firebase
WordPress
Shopify
Tailwind
Framer Motion
GSAP
Prisma
PostgreSQL
Meta AI
MySQL
Supabase
NoSQL
Bootstrap
SpringBoot
Rust
Go

Project Alignment & Commitments

A transparent framework designed to align expectations, streamline development, and guarantee exceptional results.

What We Require From You

Essential inputs to initiate engineering
01

SRS / Scope Document

A Software Requirements Specification or detailed outline defining target features, core user stories, and ultimate project goals.

02

Brand Assets & Figma Designs

High-fidelity Figma mockups, wireframes, logos, custom typography preferences, and branding guidelines.

03

API & Database Specifications

Existing backend API documentation, data schemas, or credentials for any third-party integrations needed.

04

Active Feedback Loops

Prompt communication and availability for brief check-ins during milestone reviews to ensure timely launch.

What We Guarantee In Return

Our core commitments to your project
01

Timely & Transparent Updates

Routine progress reports, structured demo sessions, and interactive staging links so you can track progress live.

02

Rigorous Testing & QA

Comprehensive end-to-end testing, full mobile/tablet responsive testing, and speed optimization for perfect Core Web Vitals.

03

Premium & Clean Codebase

100% intellectual property ownership of a modular, fully documented, component-driven React / Next.js / TypeScript codebase.

04

Post-Launch Technical Support

30 days of complimentary technical warranty cover to address any post-launch bugs, performance checks, or hosting adjustments.

Featured Projects

Real-world products built with precision, performance, and craft.

Starbucks 3D Website — Ayush Kumar Full Stack Developer Project Case Study

Case Study 01

Starbucks 3D Website

An immersive e-commerce experience featuring interactive 3D cup customizations, physics-based fluid animations, and high-performance asset compression.

ReactThree.jsReact Three FiberGSAPTailwind CSSVite
Integrated AI Chatbot for E-Commerce — Ayush Kumar Full Stack Developer Project Case Study

Case Study 02

Integrated AI Chatbot for E-Commerce

An intelligent virtual assistant integrated into an existing online storefront, leveraging Retrieval-Augmented Generation (RAG) and customer purchase history to handle order queries, product searches, and FAQs.

ReactNode.jsLangChainOpenAI GPT-4Pinecone DBMongoDBExpress
InvoiceFlow SaaS — Ayush Kumar Full Stack Developer Project Case Study

Case Study 03

InvoiceFlow SaaS

A automated client invoicing and subscription billing platform for freelance agencies and consulting firms.

Next.jsStripe BillingNode.jsExpress.jsPostgreSQLPrismaTypeScript
Gurugram University Attendance System — Ayush Kumar Full Stack Developer Project Case Study

Case Study 04

Gurugram University Attendance System

Faculty can track and mark student attendance with real-time class scheduling and automated reminders, while students access a personal dashboard to monitor their attendance history, grades, and university updates.

ReactNode.jsExpress.jsTailwind CSSJavaScriptMongoDB
Feedo — Ayush Kumar Full Stack Developer Project Case Study

Case Study 05

Feedo

A comprehensive feedback collection and customer satisfaction platform. It allows businesses to deploy surveys, perform automated sentiment analysis, and visualize user analytics via a dynamic dashboard.

React NativeExpo SDK 54TypeScriptNativeWindNestJSMongoDBSocket.IOJest

Client Reviews

Here is what clients and team leads have to say about collaborating with me on production applications.

Honestly, Ayush was a lifesaver for our Next.js project. We had a super tight deadline and a limited budget, but he got the entire web app up and running ahead of schedule. The code is super clean, and he even helped us set up some basic SEO things that really boosted our search traffic. Definitely hiring him again!

I've worked with a lot of developers, but Ayush stands out. He built our React Native app using Expo and NativeWind, and the UI is incredibly smooth. What I appreciated most was how he kept us in the loop the entire time and didn't charge us agency-level fees. Really solid work.

We needed to optimize our MongoDB database and NestJS backend because things were lagging. Ayush jumped in, sorted out the query issues, and now everything runs incredibly fast. He's fast, knows his stuff, and didn't cost a fortune. Strongly recommend!

Ayush built a really clean e-commerce site for us. I was worried about the payment integration and Stripe checkout, but he handled everything perfectly. He delivered exactly what we wanted on time, and his pricing was very fair. Super happy with the final product.

Really happy with the mobile app Ayush built for us! It's super fast, and the animations are exactly what we had in mind. He suggested some great UX tweaks that made the app way better to use. He's very professional and finished everything right on budget.

Our store's loading speed was terrible and we were losing customers. Ayush did a complete audit, optimized the custom theme, and fixed our SEO. The site loads instantly now and our conversion rate went up. Saved us a ton of cash!

Absolutely amazing frontend work. He turned our Figma designs into a working Next.js site, and it looks identical. The hover effects and transitions are very clean. Great communication, fast turnaround, and very reasonable pricing.

He upgraded our Expo app to the latest version and resolved some really tricky navigation bugs. The app is much more stable now. Ayush is incredibly skilled and got it done very quickly. Great experience working with him!

We wanted a custom dashboard with real-time updates for our feedback tool, and Ayush built it using Socket.IO. The sync works perfectly. He's super smart, easy to talk to, and delivered exactly what we needed without any hassle.

Highly recommend Ayush for full stack work. He optimized our site's SEO, fixed our page speed issues, and cleaned up our backend. The project was completed on time, and he went above and beyond to make sure everything was perfect.

Scope & Pricing Estimator

Design your project scope below in real-time. Transparent estimation with zero surprises.

01

Select Base Project Type

Choose the primary platform for your product.

🇮🇳 For Indian Clients & Startups: Special localized rates are available. We can discuss and negotiate the final price to fit your budget!

🔥

50% Special Discount Applied! The discount is applied directly to the base project price (add-ons and screen upgrades are regular price).

02

Define Scale & Pages

How many unique views, dashboards, or subpages does it need?

Screens & Subpages6 screens
Base includes 6 screens
03

Choose Add-Ons & Features

Supercharge your product with custom features and priority timelines.

Quote Summary

Project Base Price (SaaS / Full Stack App)$600
50% Special Discount-$300
Screens (6 total)Base included
Custom Add-Ons0 selected
Total Estimated Price (50% Off Applied)
$300 – $360
USD (Project Rate)

*Note: 50% discount is applied only to the base project price. Extra screens and custom add-ons are regular price.

Duration
3-5 Weeks
Warranty
30 Days Included

🇮🇳 For Indian Clients & Startups: Special localized rates are available. We can discuss and negotiate the final price to fit your budget!

*Estimate calculations are based on standard design and development specifications. Final proposal pricing is fixed-cost upon scoping.

Get In Touch

Ready to build something extraordinary? I'm open to freelance contracts and full-time opportunities. Drop a message — I reply within a few hours.