Hire the Best Bug Testers

Hi! I'm Md. Najmul Hassain. Digital marketer and app publisher expert. Specialist in 12 Testers Closed Testing. I help businesses run efficient, confidential closed testing with a vetted group of 12 skilled testers. From usability feedback to bug tracking, I provide accurate, structured results to refine your product before launch. Fast turnaround, secure process, and clear reporting guaranteed. Let’s make your release smooth and successful.

Are you looking for a Google Play Console expert to help you pass the mandatory closed testing phase? I specialize in providing the 12 testers and 14 days of continuous engagement required for new developer accounts to gain Production Access. With a 100% success rate, I help developers move from closed beta to a live Play Store release. I don't use bots or emulators; I provide authentic manual app testing using a fleet of 12+ real Android devices (Samsung, Pixel, Xiaomi, etc.). This ensures your Google Play production access application is approved without flags or policy rejections. 🚀 My Google Play Testing Services: ✅ Closed Testing Management: Complete handling of the 14-day testing period to satisfy Google Play’s engagement requirements. ✅ Production Access Strategy: Expert guidance on the Google Play Console application process to ensure a 100% approval rate. ✅ Real-Device QA Testing: Professional mobile app testing on 12+ physical devices to provide authentic usage data and performance metrics. ✅ Bug Reporting & Analysis: Detailed QA audits to identify UI/UX glitches, crashes, and functional bugs before your public launch. ✅ Policy Compliance: Pre-submission reviews to ensure your app follows the latest Google Play Developer Program Policies. 🛠️ Devices & Tools: ✅ Physical Devices: 12+ Real Android phones (Android 10 to Android 14). ✅ Platforms: Google Play Console, Firebase App Distribution, Jira. ✅ Testing Types: Manual Testing, Usability Testing, Regression Testing, and Beta Testing. I am committed to clear communication, high-quality app QA, and fast turnarounds. Let’s get your app through closed testing and ready for production! Contact me today to successfully launch your app on the Google Play Store!

Senior manual QA tester for mobile apps (iOS & Android), web apps, Shopify stores, SaaS dashboards, and APIs. 24+ Upwork contracts, 5.0 average rating, 100% Job Success. ISTQB certified. Real devices, never emulators. Here's the call I save you from: your app is two weeks from launch. Your devs swear it's clean. Then a beta user finds a checkout bug that's been there for months, and it's all over your support inbox by Monday. Before Upwork I did QA for Bell Canada (telecom), Ubisoft (Space Junkies VR), Abbott (health tech), and FLO EV Charging. On Upwork I've tested Shopify stores, SaaS platforms, native iOS and Android apps, Steam games, and beta programs. What you get: - Reproducible bug reports with steps, screenshots, and screen recordings - Severity ratings (Critical, High, Medium, Low) so your devs know what to fix first - Test cases and reports in your tool: Jira, TestRail, ClickUp, Notion, GitHub Issues, or a clean doc - Real-device testing on iPhone 15 (iOS 26), Samsung Galaxy S24 FE (Android 15), Windows, and macOS - 0-4 hour response time, overlapping US East, UK, and EU hours What I test: mobile apps, Shopify checkout flows, web apps and SaaS dashboards, payment flows, APIs (Postman), games (Steam, mobile, VR), and beta programs (TestFlight, Google Play closed testing). Testing types: functional, regression, smoke, exploratory, UAT, cross-browser, cross-device. Recent client feedback: "Provided a thorough testing of our game with a very fast turnaround time." / "Super efficient, collaborative, and easy to work with." Send me your build, staging URL, or TestFlight invite and I'll come back with exactly what I'll test, the timeline, and what lands in your inbox. No surprises, no padding.

⭐⭐ “I am QE Test Automation Engineer , Completed approx. 13,000 hours with a good rating.”⭐⭐ ⭐ AI Training Support: Assisting in model optimization through RLHF, data annotation, and strict quality control. ⭐ AI Training & Fine-Tuning: Experience in data labeling, reinforcement learning from human feedback (RLHF), and prompt engineering to improve LLM accuracy. ⭐ End-to-End AI Testing: Validating AI integrations, API responses, and edge-case behaviors in software systems. ⭐ AI Application Reviews: Evaluating AI tools and apps for usability, functional performance, and overall response quality. ⭐ AI Orchestration & Verification: Managed end-to-end AI coding plans, orchestrating models (Claude, Gemini) through draft, execution, and verification phases while monitoring live token usage and execution costs. ✔️ Automation Testing ✔️ Playwright ✔️ AI-Assisted testing ✔️ Functional QA ✔️ Website testing ✔️ Manual QA ✔️ Bug report✔️ Usability testing & App reviews✔️ iOS and Android app testing ✔️ Regression Testing✔️ Selenium WebDriver ✔️ Cypress ✔️ End-to-end testing ✔️ UI & UX testing ✔️ ChatGPT ✔️ Gemini ✔️ Copilot ✔️ Claud Are you looking to launch a flawless web or mobile app, scale your release velocity, or get deep, critical insights into why your users might be dropping off? As a Senior QA Automation & Manual Testing Engineer with over 11 years of experience across US-based enterprise platforms and high-growth startups, I don't just find bug. I protect your product’s reputation and user experience. I bridge the gap between heavy-duty engineering (building scalable automation pipelines) and high-empathy user advocacy (usability reviews, deep exploratory sessions, and UX feedback). 🚀 High-Demand QA Services I Offer: 1. Premium US-Based Web & Mobile App Reviews & Feedback Real-Device USA Reviews: Testing on actual, physical iOS and Android devices to replicate authentic US user environments, carrier networks, and localized workflows. UX & Usability Audits: Deep-dive reviews looking at user friction points, layout inconsistencies, navigation logic, and accessibility (WCAG). You receive a structured video walk-through or a comprehensive report. Exploratory & Ad-Hoc Testing: Going off-script to mimic unpredictable real-world user behavior, finding edge-case crashes before your customers do. 2. Enterprise-Grade Test Automation Frameworks: Web Automation: Architecting lightning-fast, zero-flakiness End-to-End (E2E) automation frameworks from scratch using Playwright (TypeScript/JavaScript), Cypress, and Selenium (Java).Mobile Automation: Native and cross-platform app test frameworks using Appium.CI/CD Integration: Sharding and parallelizing tests inside GitHub Actions or Jenkins so your dev team gets quality feedback in under 5 minutes on every commit. 3. Functional, Manual, & API Testing Comprehensive test plan/test case design in Jira, TestRail, or Azure DevOps. Robust REST API testing and automation utilizing Postman. Regression and Smoke testing cycles to protect critical business logic during fast-paced sprints. 🛠️ Core Technical & QA Stack: Languages: TypeScript, JavaScript, Java, Python, SQLAutomation: Playwright, Selenium WebDriver, Cypress, AppiumMobile Testing: Physical iOS (iPhones) & Android devices, BrowserStack, Firebase Test LabAPI & Backend: Postman, REST Assured Management & CI/CD: Jira, TestRail, GitHub Actions, Jenkins, Docker 💼 What You Get in Every Deliverable: Clear, Reproducible Bug Reports: Ticket-ready bug descriptions with steps to reproduce, clear environmental context, and attached screen recordings/logs. Actionable UX Feedback: Strategic product reviews detailing why a feature feels clunky and how to optimize it for higher conversion rates. Clean, Maintainable Code: Automation repositories built using the Page Object Model (POM), fully commented and ready for your developers to maintain. Whether you need a quick, meticulous usability review before a major app store launch, or a strategic partner to build an automation testing pipeline from scratch—let's chat. Click the "Invite" button on the top right, and let’s discuss how we can secure your app's quality.

I am a detail-oriented Manual QA Tester with over 10 years of experience helping clients deliver stable, user-friendly, and bug-free applications. I specialize in testing web and mobile applications, ensuring that functional, UI, usability, and regression issues are identified and resolved before they reach your users. I have also worked with AI-powered websites, testing AI-driven features, workflows, and user interactions to ensure accuracy, reliability, and seamless performance. What I Can Help You With: ✔ Manual Testing (Web & Mobile Applications) ✔ AI Website & Feature Testing ✔ Test Case Creation & Execution ✔ Detailed Bug Reporting (clear steps, screenshots, screen recordings) ✔ Smoke Testing ✔ Regression Testing ✔ Exploratory Testing ✔ API Testing using Postman Tools I Use: Jira | Trello | Asana | TestRail | Google Sheets | Postman I focus on clear communication, fast turnaround, and delivering high-quality results. My goal is to help you release confidently with a smooth and reliable product. Available Devices for Testing: ✔ MacBook Pro ✔ Lenovo IdeaPad 3 (Windows) ✔ iPhone 11 Pro Max ✔ Android Devices: OnePlus 9 5G, Samsung Galaxy S21 FE 5G ✔ Tablets: iPad (8th Generation, 2020), Huawei MediaPad If you're looking for a reliable QA professional who treats your product like their own, let's connect!

Detail-oriented 𝐐𝐀 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 with 2.6+ years of experience in 𝐌𝐚𝐧𝐮𝐚𝐥, 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧, 𝐀𝐏𝐈, and 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 for 𝐖𝐞𝐛 and 𝐌𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬. I specialize in ensuring software quality through well-structured test strategies, automation frameworks, and thorough validation processes that help clients deliver 𝐛𝐮𝐠-𝐟𝐫𝐞𝐞, 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞, 𝐚𝐧𝐝 𝐫𝐞𝐥𝐢𝐚𝐛𝐥𝐞 𝐬𝐨𝐟𝐭𝐰𝐚𝐫𝐞. 𝐌𝐚𝐧𝐮𝐚𝐥 𝐓𝐞𝐬𝐭𝐢𝐧𝐠: Experienced in the full QA lifecycle — from requirement analysis and test case design to execution, defect reporting, and documentation. Proficient with tools like JIRA, BrowserStack and TestRail for efficient test management and collaboration. 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐓𝐞𝐬𝐭𝐢𝐧𝐠: Developed a Hybrid Test Automation Framework using Java, Selenium WebDriver, Playwright, TestNG, Maven, and POM, integrated with Allure Reports, ExtentReports and Log4j2. Implemented CI/CD pipelines using Jenkins and GitHub Actions to automate test execution on code commits and pull requests. Experienced in parallel and cross-browser testing using Selenium Grid and Playwright’s built-in capabilities to ensure faster and reliable automation runs. 𝐀𝐏𝐈 & 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐓𝐞𝐬𝐭𝐢𝐧𝐠: Hands-on with Postman and Rest Assured for RESTful API validation. Skilled in schema validation, functional, and security testing, along with SQL-based database verification to ensure end-to-end data integrity and reliability. 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 & 𝐌𝐨𝐝𝐞𝐫𝐧 𝐓𝐨𝐨𝐥𝐬: Executed load and stress testing using JMeter to analyze performance under real-world conditions. Familiar with BDD frameworks (Cucumber) and modern automation tools like Playwright and Cypress. Experienced in Git/GitHub for version control and Docker for test environment setup. 𝐂𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐢𝐨𝐧 & 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐲: Active contributor in Agile/Scrum teams, participating in sprint planning, QA strategy design, and release validation. Known for clear communication, quick adaptation, and consistent delivery of high-quality results. I’m passionate about improving testing efficiency, adopting new technologies, and building reliable QA solutions that ensure top-quality software delivery for every client.