About Mustafo Rajaboev | Contra Mustafo Rajaboev

Mustafo Rajaboev

Mustafo Rajaboev

QA Partner for Apps & Games | Manual Testing & Bug Triage

Ready for work

Mustafo is ready for their next project!

Warsaw, Poland

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Warsaw, Poland

Meet Mustafo

Followed by Dana K and Nicolas P

I bridge the gap between your code and the user's experience. As a Manual QA Specialist with a developer background (Java foundation), I don't just "find bugs" — I investigate the root cause, verify fixes, and provide clear, reproduction-ready tickets.

Open for B2B cooperation (I issue VAT invoices via Useme).

Identity verifiedVetted for secure and trusted collaboration.

Rate

$25 - $50/hr

Skills and tools

QA Tester User Researcher UX Researcher QA Engineer Community Support Specialist Technical Support Specialist Auditor

Details

Warsaw, Poland

(GMT+1) Central European Time (CET), ±2 hours

Fluent in Turkish • Professional Working Proficiency in English • Limited Working Proficiency in Russian

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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

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Contact support

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