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Karim
@mdkarim456
Level 2
QA Engineer, Penetration Tester and Website Security
Bangladesch
Englisch, Deutsch, Französisch, Spanisch, Italienisch, Bengalisch
Über mich
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.
Kompetenzen
Karim
15 $/Stunde
offline •
Durchschnittliche Antwortzeit: 1 Stunde
Meine Dienstleistungen
Qualitätssicherung
I will do manual QA testing for your website, web app, mobile app, saas, or software
Softwaretests
I will do security testing for web applications and saas platforms
Möchtest du auf Stundenbasis arbeiten?
Erzähle Karim, was du brauchst.
15 $
/
StundePortfolio
Arbeitserfahrung
QA Engineer & Security Specialist
Fiverr Marketplace • Freiberufler
Jan 2025 - Present • 1 yr 4 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 • Vollzeit
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 • Vollzeit
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.
35 Bewertungen
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signalum
Frankreich
Karim delivered far beyond what was agreed in the scope. The original engagement was Functional QA on 11 categories plus FR/EN consistency. He executed 86 test cases across 13 categories, including a full Nielsen heuristics audit and a bonus accessibility scan that were not in the contract. The Nielsen...
Antwort des Freelancers
Hilfreich?
richvara
Wiederkehrender Kunde
Vereinigte Staaten
When its critical to identify new app security issues before subscribers are exploited and ahead of the bad guys you need to contract Karim for security/penetration testing. Karim is so impressive we're contracting with him for monthly testing and recommendations. Karim
Antwort des Freelancers
Hilfreich?
jamesscott229
Wiederkehrender Kunde
Vereinigte Staaten
Karim did an outstanding job testing our Constructeams web application across multiple browsers and devices. He was extremely thorough in identifying bugs, performance issues, and edge-case failures that would have been very difficult to catch otherwise. His attention to detail and ability to clearly...
Antwort des Freelancers
Hilfreich?
equitymichael
Türkei
Bro,dont go anywhere else Karim is TOP NOTCH at what he does. İf youre clever you will understand this comment. Because i have tryed many freelancers here at Fiverr.
Antwort des Freelancers
Hilfreich?
olilou
Haiti
I had a great experience working with this freelancer. He performed a thorough QA test and penetration test for my platform and was very professional throughout the process. He was detail oriented, identified important bugs and vulnerabilities that could have caused serious issues later, and explained...
Antwort des Freelancers
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