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Karim
@mdkarim456
Level 2
QA Engineer, Penetration Tester and Website Security
Bangladesh
Inglés, Alemán, Francés, Italiano, Español
Sobre mí
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
USD 14/hora
desconectado •
Tiempo medio de respuesta: 1 hora
Revisa mis servicios
QA y revisión
I will do manual QA testing for your website, web app, mobile app, saas, or software
Pruebas de software
I will do security testing for web applications and saas platforms
¿Quieres trabajar por horas?
Dile a Karim qué necesitas.
USD 14
/
horaPorfolio
Experiencia laboral
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 • Tiempo completo
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 • Tiempo completo
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 Reseñas
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Desglose de calificaciones
- Nivel de comunicación del Freelancer
- Calidad de la entrega
- Valor de la entrega
1-5 de 58 reseñas
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kendismann
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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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ericmuria
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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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isabella_barros
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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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olilou
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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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jhunderwood
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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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