m
mdkarim456

Karim

@mdkarim456
4,9(58)

Level 2

QA Engineer, Penetration Tester and Website Security

Bangladesh
Inglese, Tedesco, Francese, Italiano, Spagnolo
Alcune informazioni sono riportate in lingua inglese.
Chi sono
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.... Continua a leggere

Competenze

m
mdkarim456
Karim
14 USD/ora
offline • 
Tempo di risposta medio: 1 ora

Consulta i miei servizi

QA e revisione
I will do manual QA testing for your website, web app, mobile app, saas, or software
4,9(41)
Collaudo di software
I will do security testing for web applications and saas platforms
5,0(10)

Vuoi lavorare su base oraria?

Spiega a Karim cosa ti serve.

14 USD

/

ora

Portfolio

Esperienza lavorativa

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 • Full time

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 • Full time

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 Recensioni
4,9

(55)
(3)
(0)
(0)
(0)
Valutazione dettagliata
  • Livello di comunicazione del venditore
    5
  • Qualità della consegna
    4,9
  • Valore della consegna
    4,9
1-5 di 58 recensioni
Ordina per
Più rilevante
    K

    kendismann

    SE

    Svezia

    5

    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...

    100 USD-200 USD

    $

    6 giorni

    Tempo

    gig

    QA e revisione

    Utile?
    Sì
    No
    E

    ericmuria

    ES

    Spagna

    5

    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...

    200 USD-400 USD

    $

    8 giorni

    Tempo

    gig

    QA e revisione

    Utile?
    Sì
    No
    I

    isabella_barros

    CH

    Svizzera

    5

    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.

    50 USD-100 USD

    $

    8 giorni

    Tempo

    gig

    QA e revisione

    Utile?
    Sì
    No
    O
    image-docs

    olilou

    HT

    Haiti

    Collaborazione in corso
    5

    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...

    200 USD-400 USD

    $

    13 giorni

    Tempo

    gig

    Collaudo di software

    Utile?
    Sì
    No
    J

    jhunderwood

    BB

    Barbados

    4,7

    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.

    200 USD-400 USD

    $

    7 giorni

    Tempo

    gig

    QA e revisione

    Utile?
    Sì
    No