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Kawsher A.
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Kawsher A.

Senior QA Lead | Manual & Automation Testing for AI, SaaS, Web, Mobile

Automated scripts only check what you expect, but human intuition uncovers the hidden flaws. True software quality starts with master-level manual testing to break your system like a real user, and is locked in by robust automation to protect your release speed. With 8+ years of engineering experience, I combine elite exploratory manual testing to catch complex edge cases with self-healing automation pipelines (Playwright, Cypress, Selenium) integrated directly into your CI/CD workflow. Whether you are scaling an enterprise ecosystem or launching an AI platform, I bridge heuristic manual depth with automated velocity to ensure your product ships bulletproof. 🛠️ My QA Arsenal — Full & Prioritized • User Acceptance Testing (UAT) • Functional & Regression Testing • UX/UI, Responsive & Usability Testing • Exploratory, Smoke & Sanity Testing • Cross‑Browser Testing (Chrome, Safari, Firefox, Edge) • Cross‑Device & Platform Testing (Windows, macOS, iOS, Android, TV/OTT) • API Testing (Postman, REST, Auth, Data Integrity) • Performance Testing (k6, JMeter, Lighthouse) • Automation Support (Cypress, Playwright, Appium, CI/CD) • Security Testing (OWASP ZAP, vulnerability scanning) • Accessibility Testing (WCAG 2.1/2.2 — axe, WAVE, VoiceOver, TalkBack) • Localization & Internationalization Testing (language, region, format validation) • End‑to‑End (E2E) Testing (full user journey validation) • Installation & Upgrade Testing (new installs, updates, migrations) • Network & Offline Testing (slow networks, offline mode, retry logic) 🧰 Tool Stack Test Management: Jira · Linear · Trello · ClickUp · Asana · GitHub · TestRail · Qase Cloud Device Labs: BrowserStack · LambdaTest · Xcode · Android Studio · Chrome DevTools API Testing: Postman · Insomnia · Swagger · cURL Automation: Playwright · Cypress · Appium · Maestro · Selenium · Detox Languages: Java · Python · JavaScript · TypeScript CI/CD: GitHub Actions · GitLab CI · Jenkins · CircleCI Performance & Security: k6 · JMeter · Lighthouse · OWASP ZAP Accessibility: axe · WAVE · VoiceOver · TalkBack Database: MySQL Workbench · pgAdmin · MongoDB Compass Communication: Slack · WhatsApp · Discord · Telegram · Microsoft Teams ⚡ My QA Process Requirements-first review Test strategy & scoping Custom test cases Test environment validation Test execution & exploratory testing Bug reports with steps, severity, screenshots & video Defect triage & prioritization Transparent updates Post-fix verification with regression validation Release sign-off 🏭 Industries & Software Verticals AI & Machine Learning (ML) • SaaS (Software as a Service) • FinTech • HealthTech • DeFi (Decentralized Finance) • CRM, HRM, ERP • Entertainment & Gaming • EdTech • PropTech • Logistics & Supply Chain • E-commerce & RetailTech • EnergyTech & ClimTech • Web & Mobile Apps Our Real‑Device Lab (OS versions updated to latest public releases) 📱Apple (iOS / iPadOS): iPhone 17 Pro Max, (iOS 26.4.1) · iPhone 17, (iOS 26.3.1) · iPhone 16 Pro Max, (iOS 18.03) · iPhone 14 Pro Max, (iOS 26.4) · iPhone 11 Pro (iOS 26.1) · iPhone X (iOS 18.7 — end‑of‑life) · iPad 8th Gen (iPadOS 26.0 — end‑of‑life) 📱Android / Tablets: Samsung S25 Ultra (Android 16), Samsung S23 Ultra 5G (Android 15) · Google Pixel 6 Pro (Android 16) · Samsung S21 Ultra (Android 14) · Samsung M20 (Android 12) · OnePlus 9R (Android 13) · Galaxy Tab S6 Lite (Android 15) 💻 Desktop (macOS & Windows): MacBook Pro M5 · MacBook Pro M4 · MacBook Pro M2 · Windows 11 Pro (AMD Ryzen 5 5600G) · Windows 10 Pro (Dell XPS 13) · Windows 11 Pro (Dell Inspiron 16") 📺 TV/OTT: Apple TV 4K · Roku 4K · Fire TV Stick · Google TV 🌟 Why Clients Stay Zero ramp‑up time Dev‑friendly bug reports Honest, no‑fluff assessments QA structure built from scratch Real‑device testing (not just emulators) Fast communication Risk‑based testing approach Long‑term QA partner for startups & enterprises 📩 Ready to ship? Tell me about your product. I'll respond the same day with an honest QA assessment.

🇧🇩Bogra, Bangladesh$25/hr100% JSS4.74 (130)Since Apr 2020
GlobeUpwork
MRR
$4,409
🌍#6,787/363K
🇧🇩#71/13.3K
Recent Earnings
$26,456
🌍#6,787/363K
🇧🇩#71/13.3K
Total Earnings
$213K
🌍#12.8K/363K
🇧🇩#247/13.3K
Avg. Per Project
$1,100
🌍#108K/363K
🇧🇩#1,789/13.3K
Recent Projects
16
7f10h
🌍#9,859/363K
🇧🇩#887/13.3K
Total Projects
194
120f94h
🌍#9,859/363K
🇧🇩#887/13.3K
MRR Performance Over Time
$50k$25k$0
6 mo ago3 mo agoNow
Coming SoonGathering historical data
World Skill Rankings
of 163
#3
Exploratory TestingTop 1%
#8Game Testing
#9Mobile QA
#12QA Engineering
#13User Acceptance Testing
#17QA Testing
#20Test Case Design
#21End-to-End Testing
#22Website Audit
#29Cypress
#31Selenium WebDriver
#32Regression Testing
#32Automated Testing
#39Functional Testing
#39Mobile App Testing
#40Manual Testing
#44Software Testing
#47Software QA
#48Web Testing
#49Quality Assurance
🇧🇩Bangladesh Skill Rankings
of 13
#1
QA EngineeringTop <0.01%
#1QA Testing
#1Game Testing
#1Website Audit
#1Mobile QA
#1Cypress
#1Selenium WebDriver
#1Automated Testing
#2Software Testing
#2Quality Assurance
#2Software QA
#2Manual Testing
#2User Acceptance Testing
#2Functional Testing
#2Regression Testing
#2Exploratory Testing
#2End-to-End Testing
#2Test Case Design
#2Web Testing
#2Mobile App Testing
Kawsher A. — Top 1% in Bangladesh | UpworkMRR