Freelance Fullstack Engineers in Warsaw

Freelance Fullstack Engineers in WarsawFreelance Fullstack Engineers in Warsaw

Projects People

Full-Stack Engineer | Replit & Cursor | AI Integration

5.0: Rating

21: Followers

expert

Full-Stack Engineer | Replit & Cursor | AI Integration

Cover image for Founder Portfolio — Product Builder & Co-Founder Website

Founder Portfolio — Product Builder & Co-Founder Website

0

4

Cover image for Sports Platform Website — Landing page Design & Full-Stack Build

Sports Platform Website — Landing page Design & Full-Stack Build

0

4

Cover image for Konnect.io Website Development

Konnect.io Website Development

0

2

Cover image for Half-Bakd Shopify Storefront Development

Half-Bakd Shopify Storefront Development

0

1

Fullstack Engineer(6)

PROWarsaw, Poland

Full Stack Developer | Mobile Developer | AI Expert

5.0: Rating

7: Followers

Full Stack Developer | Mobile Developer | AI Expert

Cover image for Digipark Management | React | Next.js | Firebase

Digipark Management | React | Next.js | Firebase

2

22

Cover image for FACEIT | Next.js | TypeScript | Tailwind CSS

FACEIT | Next.js | TypeScript | Tailwind CSS

0

4

Cover image for E-commerce Shopping App | Flutterflow | Superbase

E-commerce Shopping App | Flutterflow | Superbase

2

15

Cover image for Olympus Mobile Wallet | Flutter | Flutterflow

Olympus Mobile Wallet | Flutter | Flutterflow

0

9

Fullstack Engineer(2)

PROWarsaw, Poland

Web & Mobile Developer | React Node ASP.NET Vue React Native

11: Followers

Web & Mobile Developer | React Node ASP.NET Vue React Native

Cover image for Shugaland Real Estate Web App Development

Shugaland Real Estate Web App Development

0

34

Cover image for UNIQA Insurance Policy Analysis System

UNIQA Insurance Policy Analysis System

0

17

Cover image for A web platform for International Centre for Mathematics Ukraine

A web platform for International Centre for Mathematics Ukraine

0

16

Cover image for AI-powered personal assistant web app

AI-powered personal assistant web app

0

21

Fullstack Engineer(3)

Chris Gawlinski

I'll handle the entire project's tech side for you

I'll handle the entire project's tech side for you

Cover image for Professional Consulting

Professional Consulting

0

2

Cover image for App development and consulting services

App development and consulting services

0

7

Cover image for Social gambling platform

Social gambling platform

0

1

Placeholder project card media

View more →

Fullstack Engineer(3)

PROWarsaw, Poland

AI & Web3 dev: bots, scrapers, automations, apps, crypto

17: Followers

AI & Web3 dev: bots, scrapers, automations, apps, crypto

Cover image for 👍 MVP mobile app for learning English for beginners Tech st...

👍 MVP mobile app for learning English for beginners Tech stack: Flutter (Dart) - iOS & Android - Audio-based quizzes/UI-UX.

2

3

280

Cover image for 😍 Created payments flow +

😍 Created payments flow + admin dashboard for a mobile app: login, checkout, recurring subscription, invoices, and payment history. I used Stripe for payments (Checkout + Subscriptions) and Prisma for the database layer. Implemented webhook handling for subscription status updates, invoice history, and access control. Also built an admin dashboard to manage users, plans, and transactions.

27

467

Cover image for 🚀 Created Photo-based AI body fat calculator The user uploa...

🚀 Created Photo-based AI body fat calculator The user uploads a photo, enters their personal information, and receives a result in body fat percentage, as well as personalized advice on how to reduce body fat percentage and how long it will take. Tech stack: Flutter (iOS-first), AI image analysis, APIs, mobile app development.

20

424

Cover image for 🚀 Content Marketing - My

🚀 Content Marketing - My Real Cases Over the past 5+ years I’ve been building and scaling crypto-focused content ecosystems, combining short-form video, Telegram growth, and performance-driven funnels. Here are some real numbers behind my work: • Built a crypto Telegram community to 25K+ subs, monetized via ads & partnerships • Reached 100K+ total followers across all social platforms • Created and published 10000+ content posts • Generated $200K+ total revenue through crypto content, traffic funnels, and marketing collaborations • Produced high-volume short-form content (TikTok / YouTube Shorts / Reels) • Created and launched my own crypto products and tools • Work with 100+ influencers • Built a full growth funnel & “content factory” - strategy, converting views into subscribers and revenue.

3

537

Fullstack Engineer(3)

Sergei Serafimovich

From vision to product, without the chaos: https://aegte.dev

New to Contra

From vision to product, without the chaos: https://aegte.dev

Cover image for OctoSale

1

1

Cover image for AI Assistant Backend Development for Comic Book App

AI Assistant Backend Development for Comic Book App

1

0

Cover image for Computer Vision Backend for Comic Book Cover Detection

Computer Vision Backend for Comic Book Cover Detection

1

1

Cover image for Christmas Sweater Image Editor Development

Christmas Sweater Image Editor Development

1

1

Fullstack Engineer(1)