Welcome! I’m Sarfraz Ahmed, a Top Rated Plus Software QA Engineer with a 100% Job Success Score and a Bachelor of Computer Science. My journey didn't start on Upwork; it began in 2016 at a fast-paced Software House in my hometown. For over five years, I worked on the front lines of manual testing, mastering the fundamentals of the SDLC before transitioning to the global market in 2021. Today, I have over 4,500+ hours of billed experience, specializing in high-stakes testing for modern digital products, ranging from standard web apps to complex AI-driven ecosystems. 🤖 Specialized Expertise in AI & Modern Tech: I have expanded my toolkit to include AI Testing and Agent Tuning. I help teams refine AI logic, validate onboarding flows for intelligent agents (like travel and e-commerce assistants), and ensure that LLM-integrated applications provide accurate, safe, and user-friendly responses. 🛠️ Recent Experience & Core Responsibilities: In my recent roles as a Lead QA Tester, I have managed quality assurance for projects including E-commerce marketplaces, CRM applications, and AI Travel Agents. My key responsibilities include: Comprehensive Device Testing: Rigorous testing across Windows, Android, and iOS using a dedicated lab of physical devices (OnePlus, Oppo, etc.) to ensure real-world performance. Enterprise-Level Infrastructure: Utilizing my enterprise BrowserStack account for cloud-based testing across hundreds of environment combinations. AI Agent Validation: Specializing in testing core trip scenarios, user onboarding, and technical annotation for AI-driven platforms. Defect Lifecycle Management: Expert use of Jira, TestRail, and Trello to provide the detailed documentation developers need for swift resolution. UAT Leadership: Leading User Acceptance Testing sessions to validate that requirements meet stakeholder expectations perfectly. 💻 Technical Toolkit: Bug Tracking: Jira, TestRail, Trello. Methodologies: Smoke, Functional, Regression, Sanity, UI/UX, White/Black Box, and Mobile Responsiveness testing. Frameworks: Experience with NodeJS, Angular, and Shopify environments. 🌟 Why I Am a Good Fit: With 4,500+ hours of proven dedication and an ISTQB® Foundation Level Certification, I don't just "click buttons"—I provide strategic quality assurance. My background in a professional software house taught me the "why" behind technical issues, allowing me to act as a bridge between users and developers. I am passionate about helping businesses deliver flawless, high-performance digital experiences. Whether you are launching a new AI tool or scaling a global e-commerce platform, I am here to ensure your project is executed perfectly. Let’s collaborate to bring your vision to life with precision and quality. Best Regards, Sarfraz Ahmed ISTQB® Certified Tester

Hello, I have 10+ years of experience in Quality Assurance. I am good at manual testing, UI/UX Testing, Web & Mobile app testing, E-Commerce App Testing, Game Testing, Cloud based application Testing, B2B/B2C Apps, SAAS based application Testing, AI, NFT/Blockchain/Cryptocurrency based application testing and desktop application Testing. Proficient in creating test documentation and working with Agile methodologies. 🏆 Top Rated 🚀 10+ Years of Professional QA Experience. 🎯 100% Job completed 🌟 Worked more than 18,000 hours 📌 Testing Skills: - Web 🖥️ , Mobile(iOS and Android) App Testing 📱and Desktop 🖥️ App Testing - Manual testing , Exploratory testing, Functional testing, Cross-browser testing, System testing - UI/UX Testing, Integration testing, Regression testing, Database Testing, End-End Testing, A/B Testing - Performance Testing, Responsive Testing, SRS and FRD Analysis 📖 Documentation Skills: - Traceability Matrix - Test Cases/Use Cases/Test Script - Test Plans - Bug Report - QA Process Document - QA Checklist 🌐 Areas/Applications: - CryptoCurrency, NFT/Blockchain and W3 Application - Shopify/E-commerce Application - Cloud Based Application - Social Networking Application - Educational Management Application - Warehouse Management System Application - Game Application - Chrome Extension Testing etc. 🪲 Defect Tracking and 📁 Management Tools: - JIRA, Mantis, Trello, Bugzilla, Github Gitlab, Clubhouse, Clickup, Monday Board - TFS, Basecamp, Redmine, Asana, ALM, , Azure DevOps, Notion 🛠️ Other Software Tools: - jMeter, Browserstack, Dropbox, Slack, Discord, Microsoft Teams, Loom - Invision Studio, Figma, Sketch, Adobe XD, Zeplin I can guarantee good communication and meeting deadlines. Deliverables will be organized, complete, clear and of good quality. I would highly appreciate your attention to my candidature and will do my best to justify your trust

Need a reliable QA Engineer who can help you ship high-quality software with confidence? I have 7+ years of experience testing Web, Mobile (iOS & Android), Desktop, SaaS, and API-based applications. I specialize in manual testing, exploratory testing, regression, end-to-end testing, release validation, and creating clear, actionable bug reports. I also use AI-powered tools to improve test coverage, generate edge cases, validate AI features and prompts, and accelerate testing without compromising quality. **My expertise includes:** • Web, Mobile & Desktop Testing • API Testing (Postman, Swagger) • Manual, Regression & Exploratory Testing • End-to-End Testing • AI & LLM Feature Testing • Cross-Browser & Cross-Device Testing • Test Case Creation & Bug Reporting • Jira, TestRail, BrowserStack, Charles Proxy, Firebase I'm proactive, detail-oriented, and focused on helping teams release stable, user-friendly products. Whether you need a one-time QA audit or ongoing testing support, I'm ready to help.

✨ 3 Years of Professional Experience in Quality Assurance (QA) | Manual & Automation Testing Expert 🛠️ Expert in Manual Testing Methodologies | Agile QA Specialist 📋 Skilled in Project Management Tools like Jira, ClickUp, Gitlab, and Asana 📝 Proficient in Creating Robust Test Cases and Executing Functional, Regression, Performance, E2E, and UI Testing 🔍 Proficient in API Automation Testing using Postman 💬 Excellent Communication and Collaboration Abilities | Client-Focused QA Engineer 🧠 Strong Analytical and Problem-Solving Skills | Bug Hunter & Quality Advocate ========= SKILLS 💪 ========= Manual Testing Skills: Manual API Testing | Postman API Testing Load Testing | Performance Testing | Stress Testing Test Case Writing | Test Scenarios Writing | Test Plans Test Summary Reports | QA Documentation | Traceability Matrix Bug Reporting | Defect Tracking | Jira Bug Reports Cross-Browser Testing | Cross-Platform Testing Types of Testing I Perform: Functional Testing | Non-Functional Testing | Sanity Testing UI Testing | UX Testing | Accessibility Testing Smoke Testing | Regression Testing | Re-Testing Integration Testing | System Testing | User Acceptance Testing (UAT) Experience with Bug Tracking Systems: Jira | Zephyr | Xray ClickUp | GitLab | Open Project Asana | Shortcut | Trello Devices: Windows 10 | MacBook 2020 iOS Devices: iPad - 10th Generation, iPhone 15 Pro Max, iPhone 13,iPhone 12, iPhone XS Android Devices: One Plus 8T, One Plus 9 Pro 5G, Samsung S20, Google Pixel 6A My Approach Includes: Writing and executing test cases | Test Automation Daily bug reporting | Defect Lifecycle Management Regression testing | Smoke Testing after deployments Daily Updates / Statuses | Sprint-wise QA Reporting I am always eager to work with new technologies and am committed to delivering top-notch QA services to ensure project success. I also have experience in Flutter development, which is a significant advantage for me in testing. Let's collaborate to ensure your project's success. 🚀 Contact me today to get started! 📩

QA Engineer specializing in web and mobile application testing, including SaaS and AI-based platforms. Experienced in test planning and execution, regression and exploratory testing, API validation using Postman, and data verification through SQL. Strong focus on validating end-to-end user flows, identifying edge cases, and ensuring functionality across different browsers and devices before release. Comfortable creating test cases, checklists, and structured bug reports with clear reproduction steps to support fast issue resolution by development teams. Skills & Tools: – Web & Mobile Testing – API Testing (Postman) – SQL Validation – Test Case Design & Checklists – Regression & Exploratory Testing – SDLC / STLC – Agile (Scrum / Kanban) – HTML / CSS basics – Jira, YouTrack, Confluence – TestRail, GitHub Focused on improving product stability, usability, and release readiness through structured QA processes.

Experienced Quality Assurance Tester with 5+ years of expertise in testing web and mobile applications across various domains. Skilled in developing effective testing strategies to improve software quality and ensure optimal user experiences. Testing Expertise: Functional Testing: Unit testing | Beta testing | Smoke testing | Regression testing | Interface testing | Integration testing | System testing | Sanity testing | Feature testing | Stress testing Non-Functional Testing: Usability testing | Performance testing | Localization testing | Load testing | Compatibility testing Application Domains: E-commerce | CRM | Games | Finance | Business | Database | Education | Health & Fitness | Lifestyle | Food & Drink | Entertainment | Human Resources | Utilities | Book | Travel Key Skills and Attributes: Comprehensive understanding of the testing process Ability to develop clear and concise test cases Proficient in test automation to optimize efficiency Experience with continuous integration and continuous testing practices Strong defect management and resolution skills Effective test data management for improved coverage Excellent communication and collaboration abilities Further, I'm pretty flexible and respect to working hours. I'm always keen to work where I can bring value to the clients' project.

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.

✅ 9+ Years of experience in Software industry. ✅ Top Rated Upwork Profile Badge Holder. ✅ 50+ Projects with 5-Star Reviews. ✅ Full-Time Software QA freelancer on Upwork with expertise in Mobile application and Web Testing, Hybrid Application Testing, Cross Platform Mobile app and Website Testing. ✅Fluent in communication. English is my Primary language for communication. ✅I have worked with Fortune Companies, Enterprise clients, and Startups. I am flexible in any role and open to various projects ranging from simple to complex projects. ✅ I have worked on projects which are developed in Flutter, Kotlin, PHP, Magento, Java, Swift, .Net, Word press, React Native, Angular. ✅ Familiar with Project Management and Bug Tracking Tools JIRA, ASANA LINEAR , GOOGLE SHEET, TEST RAIL, SLACK, CLICK UP ✅ Experienced in preparing documentation: Test Requirement | Wireframe |Test Plan | Test Strategy | Test Case | Test Scenarios | Tractability Matrix |User Flow | Bug Report | Bottleneck areas of applications | Test Summary Report Execution of QA with different Testing Types: ✅ Strong expertise on Functional and Non-functional testing ✅ Smoke Testing, Sanity Testing, Integration Testing, Regression Testing ✅ Flow verification (End to End testing), System Testing, Interface Testing ✅ Acceptance Testing, Sanity Testing, Integration Testing (Top to bottom, bottom to top) ✅ Usability testing, Cross-browser testing ✅ UI/UX Testing, Mobile Application Testing (Native, and Hybrid) - iOS, Android ✅ Security Testing, Load and Performance Testing ✅ User Acceptance Testing, Reliability Testing ✅ Compatibility Testing, User Integration Testing ✅ User Interface Testing, Performance Testing, Exploratory Testing ✅ Load Testing, Database Testing, API Testing, UAT, Cross Browser Testing ✅ I have worked on QA project which are developed in different industries like, Health Care | ERP | CRM | HRM | Education | Shopify | Banking and Finance | E-Commerce | IoT | Insurance | Retail and Consumer application | Game Application | Saas | Fintech Apps | Property Management | General Web and Mobile Application ✅Automation Tools: Selenium, Selenium Web driver, Browser stack, Postman API, JMeter, Swagger ✅ Excel, Word, Google spreadsheets, PPT for presentation, and summary documentation. ✅ Availability of devices: Android: Vivo, Motorola, Samsung, MI, Google Pixel, One Plus iOS: 11 Pro, X, XR, 7 Plus, 6S, Xs Max, 5, 5S Mac Book. ✅ 100% flexible, can work in any time zone. Let's connect and make your project "The Best Project" in the industry. LET'S PUSH YOUR PROJECT TO COMPLETION.

Are you looking for a reliable QA Engineer who can ensure your product works bug-free and user-friendly before it reaches users? You’re in the right place. I’m a Quality Assurance Engineer with 8+ years of experience in testing web applications, mobile apps, and complex software systems. My focus is simple: identify issues early, improve usability, and help you deliver a smooth user experience. What I Can Do for You ✔ Perform complete manual testing of your website or app ✔ Identify bugs in functionality, UI/UX, and performance ✔ Test across multiple devices, browsers, and operating systems ✔ Provide clear, structured, and actionable bug reports ✔ Ensure your product is user-friendly and production-ready My Testing Expertise Functional Testing UI/UX & Usability Testing Smoke & Sanity Testing User Acceptance Testing (UAT) Cross-Browser & Cross-Device Testing Responsive Design Testing End-to-End Testing Experience With SaaS Platforms E-commerce Websites (Static & Dynamic) Inventory & GL Systems Document Digitisation Systems School, Library & Supply Chain Management Systems Tools I Use Jira | Trello | Asana | Redmine BrowserStack | PageSpeed Insights Figma | Pixel Perfect | Page Ruler | WhatFont How I Report Bugs You’ll receive professional QA reports, including: Clear description of the issue Step-by-step reproduction steps Expected vs actual results Screenshots or screen recordings Why Clients Choose Me ✔ Strong attention to detail ✔ Clear communication ✔ Fast turnaround ✔ Focus on improving user experience—not just finding bugs If you want your product tested thoroughly and professionally, feel free to invite me to your job. Let’s make your product bug-free and user-friendly.

10+ years. 5 industries. Zero tolerance for bugs reaching production. I'm a QA Lead who has shipped quality for Qatar's first super app, Arabic AI speech recognition platforms, digital banking across 200+ countries, and PropTech platforms across the UAE. Whether you're launching a startup MVP or scaling an enterprise product, I find what breaks before your users do. What I test ✓ AI models (NLP, STT/TTS, chatbots) ✓ Mobile apps (Android & iOS) ✓ FinTech & payment flows ✓ Web & SaaS platforms ✓ Super apps & multi-service platforms · ✓ API & backend testing ✓ Regression & exploratory testing · ✓ Cross-platform & cross-browser Tools: JIRA · TestRail · Postman · Cypress · Appium · JMeter · Bugzilla · MySQL · MongoDB Domain depth: FinTech · Digital Banking · Super Apps · PropTech · AI Platforms · Social Media · E-Commerce · Ride Hailing · BNPL Track record → Led geo-expansion QA across Kuwait, Oman & Bahrain for a live super app → Achieved 95% bug-free production for 500+ enterprise clients → Cut testing cycles by 30% through automation strategy → 100% Job Success Score on Upwork I work in remote-first Agile teams, communicate clearly, and deliver structured test documentation that your engineers can actually use. Available across time zones.