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Português
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Karim
@mdkarim456
Level 2
QA Engineer, Penetration Tester and Website Security
Bangladesh
Inglês, Alemão, Francês, Italiano, Espanhol
Sobre mim
Manual QA Tester & Cybersecurity Specialist helping startups, SaaS founders, and agencies launch secure, bug-free, and user-ready products. Specialized in Manual QA Testing, Functional Testing, End-to-End Testing, Workflow Testing, SaaS Testing, Web Application Testing, AI Chatbot Testing, AI Integration Validation, VAPT, Penetration Testing, and Vulnerability Assessment. Experienced testing AI-built apps and websites developed with Lovable, Bolt, Cursor, Replit, v0, and other modern AI development tools with detailed bug reporting and security validation. Focused on real-user experience.
Habilidades
Karim
US$ 14/hora
offline •
Tempo médio de resposta: 1 hora
Conheça meus serviços
QA e Revisão
I will do manual QA testing for your website, web app, mobile app, saas, or software
Teste de software
I will do security testing for web applications and saas platforms
Quer trabalhar com remuneração por hora?
Diga a Karim o que você precisa.
US$ 14
/
horaPortfólio
Experiência profissional
QA Engineer & Security Specialist
Fiverr Marketplace • Freelance
Jan 2025 - Present • 1 yr 8 mos
Providing manual QA testing, website security testing, vulnerability assessments, and malware cleanup for global clients. Delivering structured bug reports, test cases, and detailed security findings.
QA Engineer & Website Security Specialist
WebPremium Solution • Período integral
Jan 2023 - Dec 2024 • 1 yr 11 mos
Led QA processes, performed SaaS testing, mobile testing, API validation, malware removal, and WordPress security hardening. Delivered high-quality reports and ensured stable, secure product releases.
QA Engineer
Brain Station 23 • Período integral
Jan 2021 - Dec 2022 • 1 yr 11 mos
Conducted functional, regression, exploratory, and API testing for large-scale enterprise products. Improved software reliability through detailed bug reports and structured test cases integrated into Agile workflows.
58 Avaliações
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1-5 fora das 58 avaliações
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ericmuria
Espanha
Excellent QA work. Karim delivered an extremely thorough and well-structured test report — every bug included clear reproduction steps, expected vs. actual results, severity, and evidence (screenshots/videos), which made the fixing process fast and unambiguous. Great communication and responsiveness...
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Útil?
olilou
Haiti
Colaboração contínua
Karim did an outstanding job with the QA and penetration testing for my project! I’m extremely happy with the quality of his work and the care he put into the testing. Having someone take both functionality and security seriously gave me greater confidence in my project. I highly recommend Karim to...
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kendismann
Suécia
Excellent work on this QA project. Kendlsmann exceeded expectations with a genuinely thorough audit — 260 test cases across 12 modules, plus exploratory testing beyond the checklist that caught a real cross-account data leak and other high-impact bugs I wouldn't have found otherwise. Communication was...
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isabella_barros
Suíça
Great experience working with this tester! They were thorough, reliable, and paid close attention to detail. They communicated clearly, provided useful and actionable feedback, and made sure to test everything carefully. Overall, very professional and easy to work with. I’d definitely recommend them and would be happy to work with them again.
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jhunderwood
Barbados
Karim was a great partner for this project. His sound understanding of the assignment enabled him to provide valuable guidance beyond his actual terms of reference. I'm extremely appreciative.
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