Freelance Full Stack Developer

Craft DevWebsites That Convert, Apps That Scale

I'm a full-stack freelance developer building high-performance React websites, Flutter apps, and production-grade backends. Clean architecture, cinematic interfaces, and delivery you can plan around.

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Projects Shipped
4+Projects Shipped
Building For Clients
4 yrsBuilding For Clients
On-Time Delivery
100%On-Time Delivery
Portrait of Craft Dev, freelance full-stack Full Stack Developer

Full-Stack Full Stack Developer

React · Flutter · Java · Postgres

About Me

I build digital products that earn trust

Four years of freelance work across startups, local businesses, and product teams. I handle the full journey — architecture, interface, backend, deployment — so you get one accountable partner instead of a handoff chain.

Working with me means fixed scope, honest timelines, and a launch checklist that covers SEO, analytics, accessibility, and handover documentation before we call it done.

What I work with

  • React & TypeScript
  • Flutter & Dart
  • Java & REST APIs
  • PostgreSQL & MongoDB
  • Firebase & Auth

  • Discovery First

    Every build starts with your goals, users, and constraints — not a template.

  • Iterative Delivery

    Weekly demos and a shared board, so you always see progress in the open.

  • Performance Obsessed

    Core Web Vitals, lazy loading, and lean bundles baked in from day one.

  • Built To Maintain

    Typed, tested, documented code your future team can actually extend.

Services

What I Deliver

Pick a single piece or the whole build — scope, timeline, and price agreed before a line of code.

  • Full-Stack Development

    End-to-end product builds: data model, API, interface, deployment pipeline.

  • React Websites

    Fast, SEO-ready marketing sites and web apps with polished motion detail.

  • Flutter Apps

    One codebase, native feel on iOS and Android, wired to your live backend.

  • Business Websites

    Credible, conversion-focused sites for studios, clinics, and local brands.

  • E-Commerce

    Catalogues, carts, payments, and order flows that hold up under traffic.

  • API & Backend

    Secure REST endpoints, auth, integrations, webhooks, and background jobs.

Projects

Selected Work

A closer look at digital products, websites and platforms I've designed and developed.

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Tech Stack

Tools I Trust

A focused toolkit, chosen because it ships reliable software — not because it's trending.

  • React
  • JavaScript
  • Java
  • Flutter
  • Dart
  • MongoDB
  • PostgreSQL
  • Firebase
  • Tailwind CSS
  • REST APIs
  • Git
  • Vite

Frontend

React, TypeScript, Tailwind, motion-rich UI systems.

Mobile

Flutter and Dart for one codebase across iOS and Android.

Backend & Data

Java, PostgreSQL, MongoDB, Firebase, secure APIs.

Contact

Let's Build Something Bold

Tell me about the project. You'll get a reply within one business day with next steps and a rough estimate.

Email

kunapareddysainath2311@gmail.com

Phone

+91 7981252711

Based In

Hyderabad · Working worldwide