Available for work

Hi, I'm MEJBAUR BAHAR

QA Automation & AI Testing Specialist with 6+ years of experience. Expert in Playwright, Selenium, Cypress, and CI/CD pipelines. Skilled in testing TTS, NLP, and AI/LLM models worldwide.

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Who I Am

About Me

Professional Summary
Mejbaur Bahar Fagun — Senior QA Engineer

Senior Software QA Engineer & SDET with 6+ years of experience in manual, automation, API, performance, security, and AI/ML testing. Expert in Playwright, Selenium, Cypress, and CI/CD pipelines.

Skilled in testing TTS, NLP, and AI/LLM models — ensuring robustness, bias mitigation, and security compliance. Proven record of reducing defect leakage by 20% and cutting regression time by 35%. Open for remote roles, freelance, contracts & consulting worldwide.

06+ Years
Experience
30+ Completed
Projects
06 Companies
Worked
What I Know

Skills & Expertise

My Technical Arsenal

Testing & QA

Manual & Automated
Manual Testing API (Postman, Swagger) Regression E2E Mobile Cross-browser Database (MySQL)

Automation

Frameworks & Tools
Playwright Selenium Cypress Appium TestNG PyTest JUnit

AI/ML Testing

AI & LLM Assurance
Model Validation Bias & Fairness Prompt Injection LLM Security Hugging Face LangTest Promptfoo

Performance

Load & Stress Testing
JMeter K6 Locust

Security

Vulnerability Assessment
Burp Suite OWASP ZAP Nuclei SQLMap Nikto Wfuzz

Tools & DevOps

Management & CI/CD
Git/GitHub Jira Docker GitHub Actions Jenkins Trello

Programming

Languages
Python JavaScript TypeScript Bash

Methodologies

Process & Practices
Agile Scrum BDD/TDD Test Case Design
My Journey

Qualification

Education & Experience
Education
Work
Awards

BSc in Computer Science & Engineering

Bangladesh University
09/2017 – 08/2021
CGPA: 3.74 / 4.00

Senior Software Engineer QA

Markopolo.ai
Nov 2025 – Present

Lead QA for AI-driven TTS models. Architect scalable test automation frameworks & CI/CD. Mentor QA team & validate model accuracy & prompt injection security.

Software Engineer in Test (L2)

Developer Experience Hub
Aug 2023 – Oct 2025

QA automation, security assurance, & functional testing. Validated AI-driven apps for bias & adversarial inputs.

Jr Software QA Engineer

Developer Experience Hub
Aug 2022 – Aug 2023

Software QA Engineer (Internship)

Developer Experience Hub
Mar 2022 – Jul 2022

Software Testing

GAOTek Inc.
Dec 2021 – Feb 2022

Software Testing

Orion Informatics Ltd
May 2021 – Jul 2021

1st Runner-up Programming Contest

CSE Family Fest 2018
01/2018

Top 1000 Rank on TryHackMe

#770 Worldwide · #12 in Bangladesh
07/2025
Security Research

Bug Bounty

Verified Security Achievements
NASA
Improper Handling of X-Forwarded-Host Header
Sensitive Internal Data Publicly Accessible via NASA Website
ChatGPT / OpenAI
Business Logic Vulnerability: Message Limit Bypass
nsw.gov.au
403 Bypass via Different Request Method
My Work

Portfolio

Professional, Freelance & Client Projects
Playwright Test Automation Framework

Playwright Test Automation Framework

ISTQB-standard framework built with Playwright + TypeScript. Page Object Model, parallel execution, CI/CD integrated.

Personal Project · 08/2025 – Present View Code
KoyJabo Smart Transport Guide

KoyJabo.com — Smart Transport Guide

Client project. Full QA lifecycle — manual testing, API validation, cross-browser automation, and performance benchmarking for Dhaka's bus route platform.

Client Project · 12/2025 – Present View Project
Bugs Matrix SQA Testing Hub

Bugs Matrix — SQA Testing Tools Hub

Browser extension for streamlining QA workflows — test-case management, quick bug reporting, and live DOM inspector in one click.

Personal Tool · 01/2024 – 08/2025 Request Access
Fagun XSS Recon Security Tool

Fagun XSS Recon

Automated recon & filtering toolkit for XSS hunting — parameter discovery, deduplication, and payload injection across large scopes.

Security Tool · 04/2025 – 12/2025 View Tool
E-Commerce QA Automation

E-Commerce Platform — Full QA Automation

Freelance project. Built end-to-end Cypress automation suite covering checkout, payments, inventory, and user flows for a US-based online retailer.

Freelance · 06/2024 – 10/2024 Contact Me
Fintech API Testing Contract

Fintech App — API & Security Testing

Contract role. REST/GraphQL API regression suite with Postman + Newman. Identified 12 security vulnerabilities before production launch.

Contract · 02/2024 – 05/2024 Contact Me
SaaS Performance Load Testing

SaaS Dashboard — Performance & Load Testing

Freelance project. K6 & JMeter load tests simulating 10K concurrent users. Identified bottlenecks, reduced API p95 latency by 40%.

Freelance · 09/2023 – 11/2023 Contact Me
Mobile App QA Testing

Mobile App — iOS & Android QA

Client project. Appium automation for a React Native health app. Covered 200+ test cases across iOS/Android, integrated into GitHub Actions CI.

Client Project · 04/2023 – 07/2023 Contact Me
Client & Freelance

QA Automation Projects

Real-world client & contract deliverables

Mehad Automation Platform

AI-Powered QA Platform · Client Project
  • Built a spec-driven AI-powered QA platform generating 2,000+ automated tests across 69+ pages.
  • Developed Playwright, Python, and CI/CD automation covering functional, security, performance, accessibility, and E2E testing.
  • Automated OTP authentication, booking, tutor onboarding, and payment workflows end-to-end.
Playwright Python AI-Driven QA CI/CD OTP Auth E2E

MyCoiffeur

Mobile Automation Android & iOS · Client Project
  • Developed a mobile automation framework for Android and iOS using Maestro, Appium, and Python.
  • Created 50 E2E mobile flows and 191 automated tests covering booking, payments, subscriptions, wallet, and profile management.
  • Integrated automated execution and reporting through GitHub Actions CI/CD pipeline.
Maestro Appium Python Android iOS GitHub Actions

Qatarat Automation Framework With AI

QA Automation Engineer · Client Project
  • Built an end-to-end mobile testing solution with 241 automated checks across Android and iOS platforms.
  • Automated donation, wallet, gift card, payment, authentication, and localization workflows.
  • Implemented CI/CD pipelines and automated reporting dashboards for stakeholder visibility.
Mobile Testing AI Testing Android iOS CI/CD Localization

Qatarat Website Testing

QA Automation Engineer · Client Project
  • Developed Playwright-based E2E automation for WhatsApp OTP authentication and MyFatoorah payment flows.
  • Automated checkout, payment processing, 3DS verification, and order confirmation scenarios.
Playwright E2E WhatsApp OTP MyFatoorah 3DS Payment
Credentials

Certifications

Professional Learning & Recognition
Certified Ethical Hacker (CEH)
Certified AppSec Practitioner (CAP)
Advanced Appium
Automated Visual Testing with Appium
LambdaTest Test Automation Professional
Codeless Test Automation
Get In Touch

Contact Me

Open for QA roles, SDET contracts, freelance & consulting