About Serhii Kryvorotenko | Contra Serhii Kryvorotenko

Serhii Kryvorotenko

Serhii Kryvorotenko

4 years of experience, Frontend & Backend Engineer

Ready for work

Serhii is ready for their next project!

Katowice, Poland

Work Services About

Katowice, Poland

Meet Serhii

Certified UPWORK Freelancer with expertise in web development. From designing user-friendly interfaces to implementing complex backend functionality, I have the skills to bring your vision to life. With 4 years of experience and a strong track record of client satisfaction, I'm ready to take on your project.

Identity verifiedVetted for secure and trusted collaboration.

Featured on

Best Russian-speaking freelance Responsive Designs to hire in 2026 Best Ukrainian-speaking freelance Responsive Designs to hire in 2026 Best Ukrainian-speaking Java freelancers to hire in 2026

Rate

$25 - $50/hr

Skills and tools

Frontend Engineer Web Developer Backend Engineer Responsive Design Web Designer Software Engineer

Details

Katowice, Poland

(GMT+1) Central European Time (CET), ±5 hours

Professional Working Proficiency in Ukrainian and Russian • Limited Working Proficiency in English

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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 Hackathons 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

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