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Fiverr Pro
English
$
USD
I will full stack mobile and web app with flutter and fastapi
Polash Kumar
About this gig
Are you looking for a reliable full stack
developer to build your mobile or web app?
I specialize in Flutter, FastAPI (Python),
React, and Next.js with AI integration
using Claude and GPT APIs.
What I build:
- Android and iOS mobile apps (Flutter)
- Web applications (React, Next.js)
- Backend APIs (FastAPI, PostgreSQL)
- AI-powered features (Claude, GPT)
- Custom business software
Real projects I have delivered:
- Classified ads platform with OTP login,
location filtering and referral system
- Jewellery shop POS with live gold rates,
inventory and Bluetooth printing
- Multi-tenant school management SaaS
with payment tracking and admin panel
Why choose me:
Clean, scalable code
Fast delivery
Clear communication
Free consultation
Source code included
Unlimited revisions on bugs
Message me before ordering and I will
give you a FREE project estimate within
24 hours. Let's build something great!
Get to know Polash Kumar
Polash Kumar
Flutter, FastAPI, React and AI App Developer
- FromBangladesh
- Member sinceDec 2023
- Avg. response time1 hour
Languages
English
Full stack developer from Bangladesh skilled in Flutter, FastAPI, React, and PostgreSQL.
I build and manage live products — a classified ads platform with OTP login, payments, and referral system, plus a complete school manager and jewellery shop management app with POS and real-time gold rate integration.
I also integrate AI (Claude/GPT) into apps — smart content generation, chatbots, and automation features.
What I bring: end-to-end development, clean production-ready code, AI-powered features, and on-time delivery.
Let's build something great together!
My Portfolio
FAQ
What is your development process?
I start with a free consultation to understand your requirements, then provide a detailed plan. Development happens in milestones with regular updates until delivery.
Do you provide source code?
Yes, full source code is included in all packages. You will own 100% of the code.
Can you integrate AI into my existing app?
Yes, I can integrate Claude or GPT APIs into any existing mobile or web application to add smart features like chatbots, content generation and automation.
How do you communicate during the project?
I provide daily updates via Fiverr messages. You can reach me anytime and I respond within a few hours.
What if I am not satisfied with the delivery?
I offer revisions until you are happy with the result. Your satisfaction is my priority.
