Senior Software QA Engineer with 5+ years of experience across Manual, Automation, API, Performance, Security, and AI/ML testing. Expert in Playwright, Selenium, and Cypress with a focus on testing TTS, NLP, and AI models. Proven record of reducing defect leakage by 20% and cutting regression time by 35% through high-level team leadership and architectural excellence.
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Tools: Playwright, Selenium, Cypress, Appium, TestNG, PyTest, JUnit AI Testing: Model Validation, Bias Mitigation, Prompt Injection, LLM Security, Hugging Face, Promptfoo, LangTest |
Security: Burp Suite, OWASP ZAP, Nuclei, SQLMap, Nikto, Wfuzz Performance: JMeter, K6, Locust |
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Languages: Python, JavaScript, TypeScript, Bash, Java Databases: MySQL, Postman, Swagger |
DevOps: Git, Docker, CI/CD (GitHub Actions, Jenkins) Ops: Jira, Trello, YouTrack, OpenProject, Agile/Scrum |
🚀 Markopolo.ai | Senior Software Engineer QA (Current)
Nov 2025 – Present | Dhaka, Bangladesh
- AI Leadership: Leading QA for AI-driven TTS models and multi-channel campaign agents.
- Architecture: Orchestrating scalable automation frameworks and specialized AI/ML evaluation protocols.
- Model Validation: Validating accuracy, robustness, prosody, and resistance to complex prompt injections.
- Mentorship: Defining KPIs and implementing company-wide QA best-practices.
🏢 Devxhub | Career Growth
Software Engineer in Test (L2) | Aug 2023 – Oct 2025
- Specialized in security assurance, performance tuning, and agile QA.
- Validated AI model robustness against adversarial inputs.
- Reduced regression time by 35% through CI/CD integration.
Jr. Software QA Engineer | Aug 2022 – Aug 2023
- Directed E2E quality for multiple successful product launches.
- Conducted exhaustive root-cause analysis for high-priority defects.
Software QA Engineer (Intern) | Mar 2022 – Jul 2022
- Identified critical bugs and designed comprehensive test suites.
🔬 Early Career Experience
GAOTek Inc. | Software Tester | Dec 2021 – Feb 2022 | NY, USA (Remote)
- Managed defect lifecycles and enhanced UX via collaborative planning.
Orion Informatics Ltd | Software Tester (Mobile & Fintech) | May 2021 – Jul 2021
- Secured mobile payment gateways and functional reliability of apps.
- 🌍 TryHackMe: Ranked #770 Worldwide (#12 in Bangladesh) as of July 2025.
- 🥉 1st Runner-up: Programming Contest at CSE Family Fest 2018 (Bangladesh University).
- 🛡️ NASA: Reported Improper X-Forwarded-Host Header & Sensitive Data Exposure.
- 🤖 OpenAI (ChatGPT): Discovered Business Logic flaw (Message Limit Bypass).
- 🇦🇺 nsw.gov.au: Identified 403 Bypass via request method manipulation.
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Smart Transport Guide for Bangladesh with Offline Support (PWA). |
Automated high-signal URL targeting toolkit for XSS discovery. |
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All-in-one browser extension for QA & Security Pros. |
ISTQB-standard E2E framework built with TypeScript & Playwright. |
- BSc in Computer Science & Engineering | Bangladesh University | CGPA 3.74/4.00
- 🛡️ Certified Ethical Hacker (CEH v12)
- 🥋 Certified AppSec Practitioner (CAP)
- 📱 Advanced Appium & Visual Testing
- 📊 LambdaTest Automation Professional
- ⚙️ Codeless Automation (Selenium IDE)
- Team Leadership: Led a 8-member SQA team and an Automation Team, improving coverage by 20% and CI speed by 35%.
- Volunteer: Campus Ambassador @ Team Matrix - Elite Hacker (Jan 2022 – Feb 2024). Empowered students with free security/QA resources.
Senior Software QA Engineer, AI Testing, LLM Security Specialist, AppSec Researcher, Playwright Automation, Selenium Expert, Security Auditor, Penetration Tester, NASA Researcher, Bangladesh, Dhaka, Remote QA Lead, QA Recruitment 2026.
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