m
mdkarim456

Karim

@mdkarim456
5,0(36)

Level 2

QA Engineer, Penetration Tester and Website Security

Bangladesh
Inglese, Tedesco, Francese, Spagnolo, Italiano, Bengali
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
15 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(25)
Collaudo di software
I will do security testing for web applications and saas platforms
5,0(8)

Vuoi lavorare su base oraria?

Spiega a Karim cosa ti serve.

15 USD

/

ora

Portfolio

Esperienza lavorativa

QA Engineer & Security Specialist

Fiverr Marketplace • Freelance

Jan 2025 - Present1 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 • Full time

Jan 2023 - Dec 20241 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 20221 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.

36 Recensioni
5,0

(34)
(2)
(0)
(0)
(0)
Valutazione dettagliata
  • Livello di comunicazione del venditore
    5
  • Qualità della consegna
    4,9
  • Valore della consegna
    4,9
1-5 di 36 recensioni
Ordina per
Più rilevante
    S

    signalum

    FR

    Francia

    4,7

    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...

    100 USD-200 USD

    $

    12 giorni

    Tempo

    gig

    QA e revisione

    Utile?
    No
    R

    richvara

    Cliente abituale

    US

    Stati Uniti

    5

    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

    50 USD-100 USD

    $

    12 giorni

    Tempo

    gig

    Collaudo di software

    Utile?
    No
    J
    image-docs

    jamesscott229

    Cliente abituale

    US

    Stati Uniti

    5

    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...

    50 USD-100 USD

    $

    3 giorni

    Tempo

    gig

    QA e revisione

    Utile?
    No
    E
    image-docs

    equitymichael

    TR

    Turchia

    5

    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.

    100 USD-200 USD

    $

    13 giorni

    Tempo

    gig

    QA e revisione

    Utile?
    No
    O
    image-docs

    olilou

    HT

    Haiti

    5

    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...

    100 USD-200 USD

    $

    6 giorni

    Tempo

    gig

    Collaudo di software

    Utile?
    No