Yevhenii Rozov's Posts | ContraPosts by Yevhenii Rozov

Yevhenii Rozov

Pro

Yevhenii Rozov

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

New to Contra

Yevhenii is ready for their next project!

Warsaw, Poland

Work Posts Services About

Warsaw, Poland

Recent Trending

Join 50k+ companies and 1M+ independents

Hire creatives Get hired

For independents

Contra Pro Manage freelance projects Get verified as an expert Find jobs Get discovered Sign contracts Send invoices Commission-free payments

For companies

For companies Manage team projects Share hiring workspace Post jobs Discover contractors Sign contracts Approve invoices Global payments & tax compliance

Use Cases

For companies For freelancers For creator tools For agencies For VCs

Resources

Partner networks Advertising Challenges Creative Human Data Human Creativity Benchmark Human in the loop API Project-based hiring calculator Guide to flexible hiring Guide for agencies Creator tools awards Customer stories Blog FAQs for freelancers FAQs for companies Referrals

Hire Freelancers

Explore all Top independents Design Engineering Marketing Music & audio Social media Video & animation Product Business consulting & HR Other

Company

Mission Careers Terms & conditions Privacy policy Cookie policy

Contact

Contact support

For independents

Contra Pro Manage freelance projects Get verified as an expert Find jobs Get discovered Sign contracts Send invoices Commission-free payments

For companies

For companies Manage team projects Share hiring workspace Post jobs Discover contractors Sign contracts Approve invoices Global payments & tax compliance

Use Cases

For companies For freelancers For creator tools For agencies For VCs

Resources

Partner networks Advertising Challenges Creative Human Data Human Creativity Benchmark Human in the loop API Project-based hiring calculator Guide to flexible hiring Guide for agencies Creator tools awards Customer stories Blog FAQs for freelancers FAQs for companies Referrals

Hire Freelancers

Explore all Top independents Design Engineering Marketing Music & audio Social media Video & animation Product Business consulting & HR Other

Contact

Contact support

Company

Mission Careers Terms & conditions Privacy policy Cookie policy

© 2026 Contra.Work Inc

pro

• 1d

😍 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...

webappdevelopment

Stripe Backend Development

Prisma Web Development Full Stack Development

pro

• 1d

🚀 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...

mobileapp Mobile Development

FastAPI Flutter Development

iosapp Full Stack Development

pro

• 6h

🙌 Some of my Telegram chatbot development projects

1. PARSER + AI WRITER 2. TIKTOK Viral Scanner 3. YOUTUBE VIDEO TRANSLATOR 4. CRYPTO HEDGER 5. REPOST TT TO SHORTS And 20+ others

Automation Engineering

automation AI Automation AI Chatbot Development

pro

• 7h

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

iosapp UX Design

Flutter Flutter Development iOS Development

mvp Mobile Development UI Design

Firebase Full Stack Development

pro

• 2d

Custom Payment Portal & Admin Dashboard

Developed a complete payment processing system for swim school management. The application includes:

✅ User Portal:

Secure authentication (Login/Register)

User dashboard with payment tracking

Subscription management

Payment history and invoices

...

Web Development

paymentprocessing