Hi, I'm MEJBAUR BAHAR

Software Engineer in Test

πŸš€ Software Engineer in Test at Developer experience Hub | πŸ›‘οΈ 4+ Years Experience | πŸ› οΈ QA & Automation Expert
Software QA Engineer with 4+ years in manual, automation, API, performance, security, and AI model testing.
Skilled in Playwright, Selenium, Cypress, and CI/CD integration. Strong in JMeter, Burp Suite, & LLM security testing.
Proven record of reducing defect leakage by 20% & cutting regression time by 35% through efficient test strategies.

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About Me

My Professional Journey
MEJBAUR BAHAR

Software QA Engineer with 4+ years in manual, automation, API, performance, security, and AI model testing:

πŸ§ͺ Manual Testing: Crafting comprehensive test plans, designing test cases, and executing them with precision to ensure optimal software performance, quality, and user experience.

πŸ€– Test Automation: Designing, developing, and implementing robust automated test frameworks using tools like Playwright, Selenium, and Cypress to ensure efficient and repeatable testing processes.

🌐 API Testing: Conducting thorough API testing for seamless integration, endpoint validation, and performance assessments, ensuring the reliability of services and software components.

πŸ”’ Security Testing & AI Model Testing: Fortifying applications with strategic security analysis and testing AI-driven applications by validating model accuracy, bias, and robustness against adversarial inputs. Skilled in vulnerability assessments using tools like Burp Suite and LLM security testing.

πŸš€ Proven Results: Proven record of reducing defect leakage by 20% & cutting regression time by 35% through efficient test strategies. Strong in JMeter, Burp Suite, & LLM security testing with CI/CD integration expertise.

4+ Years of
Professional Experience
20+ Completed Projects
5+ Companies Worked With

Skills

My Technical Skills & Expertise

Testing

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

Automation

Playwright
Selenium
Cypress
Appium
TestNG
PyTest
JUnit

Performance

JMeter
K6
Locust

Programming

Python
JavaScript
TypeScript
Bash

AI/ML Testing

Model Validation
Bias & Fairness Testing
Prompt Injection Testing
Adversarial Testing
LLM Security

Security

Burp Suite
OWASP ZAP
Nuclei
SQLMap
Nikto
Wfuzz

Tools

Git/GitHub
Jira
Trello
YouTrack
OpenProject
Docker
CI/CD (GitHub Actions, Jenkins)

Methodologies

Agile
Scrum
Test Case Design
BDD/TDD

Awards & Accomplishments

My achievements and honors
01/01/2018

1st Runner-up Programming Contest

CSE Family Fest 2018

Bangladesh University

TryHackMe

Top 1000 Rank on TryHackMe

#770 Worldwide! #12 in Bangladesh

TryHackMe

Bug Bounty Achievements

Security vulnerabilities discovered and reported

Improper Handling of X-Forwarded-Host Header

NASA

Discovered and reported a security vulnerability related to improper handling of X-Forwarded-Host header that could lead to security bypasses.

Sensitive Internal Data Publicly Accessible

NASA

Identified and reported that sensitive internal data was publicly accessible via NASA website, potentially exposing confidential information.

Business Logic Vulnerability: Message Limit Bypass

ChatGPT

Found a business logic vulnerability that allowed bypassing message limits in ChatGPT, potentially affecting service usage controls.

403 Bypass via Different Request Method

nsw.gov.au

Discovered a 403 bypass vulnerability that could be exploited using different HTTP request methods to access restricted resources.

Certifications & Leadership

Professional certifications and leadership experience

Certifications

Certified AppSec Practitioner (CAP)

The SecOps Group Β· Issued Nov 2024 Β· Credential ID 9342933

Validated application security skills across secure design, code review, vulnerabilities, and remediation.

API Beginner Learning Path

Postman Β· Issued Jun 2024 Β· Credential ID oh47c7myjhs7

Fundamentals of APIs, requests, auth, testing, and debugging using Postman.

Advanced Appium

LinkedIn Learning Β· Issued Feb 2024 Β· Credential ID 4763b1dfc0b5...

Advanced mobile automation concepts with Appium for robust test development.

Leadership Skills

SQA Team Lead

8-member SQA team

β€’ Team lead for a 8-member SQA team, improving test coverage and reducing defect leakage by 20% through efficient test planning and execution.

Automation Testing Team Lead

Automation Testing Team

β€’ Team lead for an Automation Testing Team, driving framework development and CI/CD integration that reduced regression testing time by 35%.

Qualification

My journey
Education
Work
Volunteer

BSc: CSE, Computer Programming

Bangladesh University
09/2017 – 08/2021 Β· Bangladesh
CGPA: 3.74 on a scale of 4.00

Software Engineer in Test (L2)

Developer experience Hub
08/2023 – Present Β· Rajshahi
β€’ Skilled in QA automation, security assurance, performance, and functional testing
β€’ Ensured reliable, high-quality product delivery through test strategy and agile QA practices
β€’ Tested AI-driven applications by validating model accuracy, bias, and robustness against adversarial inputs

Jr Software QA Engineer

Developer experience Hub
08/2022 – 08/2023 Β· Rajshahi
β€’ Ensured product quality and reliability through thorough testing and analysis
β€’ Collaborated with cross-functional teams to resolve issues and support successful product launches

Software QA Engineer (Internship)

Developer experience Hub
03/2022 – 07/2022 Β· Rajshahi
β€’ Conducted testing and analysis to identify bugs
β€’ Collaborated with developers and created test cases

Software Testing

GAOTek Inc.
12/2021 – 02/2022 Β· NY, USA
β€’ Ensured software quality through test planning, execution, and defect management
β€’ Collaborated with development teams to identify issues and enhance user experience

Software Testing (Mobile Apps and Payment Gateway systems)

Orion Informatics Ltd
05/2021 – 07/2021 Β· Dhaka
β€’ Ensured secure, reliable, and functional mobile payment applications
β€’ Collaborated with development teams to enhance performance and usability

Campus Ambassador

Team Matrix - Elite Hacker
Community Leadership
β€’ Empowered students by providing free educational resources
β€’ Promoted collaboration and addressing specific academic needs

Services

What I offer

Automation
Engineer

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Automation
Engineer

  • Test Automation Scripting πŸ€–

  • Test Execution πŸš€

  • Continuous Integration πŸ”„

  • Regression Testing πŸ”

  • Defect Analysis 🐞

  • Performance Testing Automation βš™οΈ

  • Test Environment Setup 🌐

  • Version Control Integration πŸ”„πŸ”—

  • Automated Test Reporting πŸ“Š

  • API Testing Automation πŸ”§

  • Cross-Browser Testing Automation πŸŒπŸ”

  • Integration Testing Automation πŸ”„πŸ”§

Software Quality
Assurence

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Software Quality
Assurence

  • Test Planning and Strategy πŸ“…

  • Test Case Design and Execution πŸ“πŸš€

  • Manual Testing 🀲

  • Regression Testing πŸ”„πŸ”

  • User Acceptance Testing (UAT) πŸ‘

  • Defect Tracking and Reporting πŸžπŸ“Š

  • Continuous Integration and Deployment πŸ”„πŸš€

  • Performance Testing βš™οΈ

  • Security Testing πŸ”’

  • Test Data Management πŸ“Š

Cyber
Security

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Cyber
Security

  • Penetration Testing πŸš§πŸ”

  • Vulnerability Assessment πŸ›‘οΈπŸ”

  • Web Application Security Testing πŸŒπŸ”’

  • Network Security Testing πŸŒπŸ”’

  • Cloud Security Testing β˜οΈπŸ”’

  • Security Code Review πŸ”πŸ’»

  • IoT Security Testing πŸŒπŸ”’

  • Data Security Testing πŸ“ŠπŸ”’

  • Digital ForensicsπŸ”

  • Security Tool Evaluation and Implementation 🧰

API
Testing

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API
Testing

  • API Understanding and Analysis πŸ”„πŸ”

  • Test Planning for APIs πŸ“…

  • API Test Case Design πŸ“

  • Automation Scripting for APIs πŸ€–

  • API Security Testing πŸ”’

  • Load and Performance Testing for APIs βš™οΈπŸ”„

  • API Integration Testing πŸ”„πŸ”§

  • Error Handling Testing πŸš«πŸ”

  • Mocking and Virtualization πŸ€–πŸ”„

  • API Monitoring and Logging πŸ“ŠπŸ‘€

  • API Gateway Testing πŸšͺπŸ”„

  • Cross-Browser and Cross-Device API Testing πŸŒπŸ“±

APPS
Testing

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APPS
Testing

  • Test Planning for Mobile Apps πŸ“…

  • Usability Testing πŸ–₯οΈπŸ“±

  • Functional Testing πŸ“±πŸ”

  • Compatibility Testing πŸ“±πŸŒ

  • Installation and Uninstallation Testing πŸ“±πŸ”„

  • App Performance Testing βš™οΈπŸ“±

  • Network Conditions Testing πŸ“±πŸ”„πŸ”—

  • Security Testing for Mobile Apps πŸ”’πŸ“±

  • Cross-Device Testing πŸ“±πŸ’»πŸ–₯️/p>

  • App Updates and Compatibility πŸ”„πŸ“±

SEO
Services

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SEO
Services

  • Keyword Research and Analysis πŸ”

  • On-Page SEO Optimization πŸ“„

  • Off-Page SEO Strategies 🌐

  • Link Building and Backlink Analysis πŸ”—

  • SEO Audits and Reporting πŸ“Š

  • Local SEO Optimization πŸ“

  • SEO-friendly Content Creation πŸ–‹οΈ

  • Mobile SEO Optimization πŸ“±

  • Technical SEO Implementation βš™οΈ

  • Social Media Integration for SEO πŸ“²

Projects

Most recent work
Fagun Test Automation Framework

Fagun Test Automation Framework

A comprehensive Playwright-based test automation framework designed for modern web applications. Features include cross-browser testing, API testing integration, CI/CD pipeline support, and advanced reporting capabilities.

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Bug Matrix 🐞 – SQA Utilities

A browser extension for testers to organize and access tools for manual testing, automation, API testing, and security analysis.

See All Project

Bug Matrix Toolkit

This script is a command-line tool that provides various information about websites, phone numbers, email addresses, and more. It includes functionalities such as fetching website information, checking phone details, validating email accounts...

Project Link

Website Comparison Tool

The Website Comparison Tool: The Website Comparison Tool automates the process of comparing websites by leveraging the power of Python and popular libraries such as requests, selenium, BeautifulSoup, and difflib. It offers a range of features specifically designed to support SQA tasks. βš™οΈ

Project Link

Performance Testing with k6

A comprehensive performance testing project using k6, an open-source load testing tool. Features include load testing, stress testing, spike testing, and soak testing with detailed HTML reporting and CI/CD integration.

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Blogs

Most recent Top Blogs

πŸš€ Advanced Guide: Setting Up Jenkins for Automated Testing and CI/CD

Advanced guide on implementing Continuous Integration and Continuous Deployment (CI/CD) using Jenkins on multiple platforms, including Kali Linux, Windows, and macOS.

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Performance Testing with k6

Performance Testing with k6

Load and performance testing workflows using k6.

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API Testing with Newman

API Testing with Newman

Automation API Testing with Newman and Generating HTML Reports

Read Now

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Recommendations

Hadisur Rahman

CEO & Founder, DEVxHUB

It's my absolute pleasure to endorse Mejbaur Bahar Fagun for his outstanding performance as a Software Quality Assurance (SQA) Engineer. Currently working with us at DEVxHUB, Fagun has continually demonstrated unparalleled proficiency, meticulousness, and dedication to maintaining the superior quality of our software products. Fagun's technical acumen in QA methodologies is truly commendable. His adeptness in handling automated testing tools and designing efficient testing frameworks has set new benchmarks in our quality assurance process. His insights into potential risks have helped us preemptively mitigate software defects, thereby saving us from considerable expenses and time delays. However, Fagun's excellence extends beyond his technical prowess. His methodical approach to resolving issues is noteworthy. When confronted with complex challenges, Fagun systematically dissects the problem, identifies the root cause, and charts out innovative, pragmatic solutions. His composed demeanor in high-pressure situations and commitment to results have been instrumental in driving our project success stories. Moreover, Fagun excels in fostering effective communication within our team. He collaborates closely with developers, project managers, and other QA engineers to ensure everyone comprehends the established quality benchmarks and expectations. His ability to connect and work seamlessly with team members across different areas has significantly elevated our team's overall productivity and efficiency. In summary, Fagun embodies the exceptional qualities of a top-notch SQA engineer. His technical knowledge, quality-driven mindset, problem-solving aptitude, and team collaboration skills have left an indelible mark on our operations. I have no doubt that Fagun will continue to raise the bar and contribute significantly to our ongoing and future projects.

Md. Bashir Ahmed

Software QA Engineer at Staff Asia

I have had the pleasure of working closely with Mejbaur Bahar Fagun for one year as part of our software development team, and I have been consistently impressed by his exceptional skills, dedication, and professionalism. He has consistently demonstrated a deep understanding of software quality assurance principles, methodologies, and best practices. They possess a strong technical background and are adept at creating and executing comprehensive test plans, test cases, and test scripts. Their meticulous attention to detail and methodical approach to testing have greatly contributed to the overall quality of our software releases. He has a keen eye for identifying potential issues, and ability to effectively communicate and document these issues has been invaluable in driving the resolution process. He is an excellent team player who actively collaborates with cross-functional teams, including developers, product managers, and business analysts. He effectively communicate testing progress, share valuable insights, and provide constructive feedback to help drive the quality of our software products.

Md. Tufecul Islam

IT Instructor

He is a very intelligent guy. His Work accuracy is so impressive and he can manage any type of problem.

Tanvir Hossain

Software Engineer QA

Fagun is a smart, intelligent, and hard-working boy. he has a good knowledge of testing and cyber security. I wish him a successful career accomplishment.

Fahim Iqbal

Business Analyst

Very intelligent and good sense of humor. Gained a bank of knowledge according to his profession.

Md. Rakib Santo

Software QA Engineer

β€œOnly one word that comes to mind when I think of Mejbaur Bahar Fagun, and that’s AWESOME. I worked with him at DevXHub and he was a consummate professional at all times. He explained the inner workings of the company perfectly and was instrumental in helping me to find my feet. MEJBAUR BAHAR's work ethic was impeccable, and he was always the first person to offer help and support. Thanks, Mejbaur Bahar Fagun You made my time at DevXHub a pleasure.”

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