I’m a detail-oriented QA / Quality Engineer with 6+ years of experience ensuring high-quality, scalable, and user-friendly software across domains such as E-commerce, FinTech, Telecom, Agritech, Health & Lifestyle, BMS, and AMS. I specialize in modern test automation, manual testing, and quality engineering practices, helping teams reduce production issues, improve release confidence, and ship faster. 🔧 Core QA & Automation Expertise ✅ Functional | UI | Regression | Integration | Cross-Browser | Exploratory | Black-Box Testing ✅ Web & Mobile Testing (iOS & Android) including Payment Gateway validation ✅ Test Automation: Playwright (preferred) | Selenium WebDriver | WebdriverIO | Selenium IDE | Appium ✅ API Testing: REST APIs using Postman & Playwright API testing ✅ Programming: Java | Python | JavaScript | TypeScript ✅ Designed and built automation frameworks from scratch (Selenium & Playwright) ✅ Achieved up to 90% reduction in production bugs through risk-based testing & automation coverage 🚀 Quality Engineering & Team Leadership 🟢 Former QA Lead, driving quality ownership in Agile (Scrum & Kanban) teams 🟢 Actively involved in early-stage testing (shift-left) and requirement reviews 🟢 Mentored junior QAs and college students in manual & automation testing 🟢 Strong collaboration with developers, product owners, and stakeholders 🔍 Tools, Processes & Modern Practices 🟢 Agile Scrum & Kanban | Test Planning | UAT | Post-Deployment Validation 🟢 Bug Tracking & Test Management: Jira | TestRail | Zephyr 🟢 CI/CD-aware testing (GitHub Actions / Jenkins / GitLab CI – test execution & reporting) 🟢 Website QA, Accessibility Testing (WCAG basics) & usability validation 🟢 Familiar with AI-assisted testing tools for test design & optimization 🟢 Basic knowledge of Performance & Security testing concepts (JMeter / OWASP awareness) 📈 Why Clients Choose Me ✔ Strong user-centric and business-driven mindset ✔ Clear communication & transparent reporting ✔ Focus on preventing defects, not just finding them ✔ Reliable, proactive, and committed to continuous improvement 💬 Let’s connect to discuss how I can help you deliver a stable, scalable, and production-ready product with confidence.

Is your SaaS platform or AI-powered product truly ready for real users? 🔍 I'm a QA Engineer with 3+ years of hands-on experience, now specializing in AI tools, SaaS web apps, and API-driven products. I help startups and product teams ship software that's not just functional — but genuinely user-ready, intuitive, and launch-confident. My edge? I think like a user, test like an engineer, and report like a developer. You get bug reports your team can actually act on — not vague notes, but reproducible, structured, and prioritized findings. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🤖 AI Product & SaaS Testing ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ AI tool QA — prompt flow testing, LLM output validation, edge-case probing, hallucination & inconsistency detection ✅ SaaS web app testing — end-to-end functional, regression, and exploratory testing across your full feature set ✅ Onboarding UX review — friction mapping, confusing flows, drop-off points ✅ API testing — REST endpoint validation via Postman; request/response accuracy, error handling, edge cases ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔍 Manual Testing Expertise ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ Functional, regression, smoke, sanity & exploratory testing ✅ Cross-browser & cross-device compatibility testing ✅ Performance observation — FPS issues, slow loads, crashes, memory concerns ✅ UI consistency & accessibility checks ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📋 QA Documentation & Process ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ Test plans, test cases & QA strategy from scratch ✅ Bug reports in Jira, TestRail, Linear, Notion, or your preferred tool ✅ Clear severity/priority tagging with steps to reproduce — every time ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🛠 Tools I Work With ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Jira · TestRail · Postman · Confluence · Notion · Chrome DevTools · Android Studio · Xcode Simulator · Slack · Linear ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 💡 Why Me? ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ My background in game QA — where hard-to-reproduce bugs, tight feedback loops, and user experience are everything — trained me to find issues others miss. That same rigor now goes into testing your SaaS dashboard, AI chatbot, or web platform. I care about the quality of your product as much as you do. I won't just close tickets — I'll help you understand your product's weak points, prioritize what matters, and ship with confidence. Available for part-time and full-time contracts. Let's get your product launch-ready. 🚀

𝗡𝗲𝗲𝗱 𝗮 𝗤𝗨𝗔𝗟𝗜𝗧𝗬‑𝗙𝗢𝗖𝗨𝗦𝗘𝗗 𝗘𝗡𝗚𝗜𝗡𝗘𝗘𝗥 𝘁𝗼 𝗰𝗮𝘁𝗰𝗵 𝗶𝘀𝘀𝘂𝗲𝘀 𝗯𝗲𝗳𝗼𝗿𝗲 𝘁𝗵𝗲𝘆 𝗮𝗳𝗳𝗲𝗰𝘁 𝘂𝘀𝗲𝗿𝘀? I help teams deliver 𝗥𝗘𝗟𝗜𝗔𝗕𝗟𝗘, 𝗦𝗖𝗔𝗟𝗔𝗕𝗟𝗘, 𝗔𝗡𝗗 𝗦𝗘𝗖𝗨𝗥𝗘 𝗣𝗥𝗢𝗗𝗨𝗖𝗧𝗦 through comprehensive QA practices — from manual and exploratory testing to modern automated and API‑centric validation. I combine process discipline with the latest tools to ensure your software meets both technical and business expectations. With 5+ years of experience, I’ve supported products across 𝗦𝗔𝗔𝗦, 𝗠𝗘𝗗𝗜𝗔/𝗔𝗗𝗧𝗘𝗖𝗛, 𝗘‑𝗖𝗢𝗠𝗠𝗘𝗥𝗖𝗘, and 𝗠𝗢𝗕𝗜𝗟𝗘 ecosystems, helping teams release faster with confidence and fewer regressions. ✨ 𝗥𝗘𝗖𝗘𝗡𝗧 𝗪𝗜𝗡𝗦: • Built comprehensive 𝗖𝗥𝗢𝗦𝗦‑𝗙𝗨𝗡𝗖𝗧𝗜𝗢𝗡𝗔𝗟 𝗧𝗘𝗦𝗧 𝗦𝗨𝗜𝗧𝗘𝗦 supporting both web and mobile flows. • Reduced bug leakage by integrating test orchestration with CI/CD (GitHub Actions, GitLab CI) and automated gating before mainline merges. • Improved API reliability through layered REST and contract testing with Postman/Newman and Pact. • Increased performance insights using k6 + Grafana dashboards for SLA monitoring. 🛠 𝗧𝗘𝗦𝗧𝗜𝗡𝗚 𝗦𝗧𝗔𝗖𝗞 & 𝗧𝗢𝗢𝗟𝗦: Platforms: Web (Desktop/Mobile), Mobile (iOS/Android), Progressive Web Apps Testing Types: Exploratory, Smoke, Functional, Regression, Integration, Compatibility, Accessibility (WCAG) Test Design & Management: Qase · TestRail · Zephyr · Xray · Allure Reporting API Testing: Postman · Swagger · Pact · RestAssured · Newman · Hoppscotch Performance & Load: k6 · JMeter · Artillery · Dynatrace · NewRelic · Grafana Automation: Cypress · Playwright · Testim · Selenium WebDriver · Appium Security & Monitoring: OWASP ZAP · Snyk · Burp Suite · SonarQube Observability: Kibana · Grafana · Datadog · Sentry CI/CD & DevOps: GitHub Actions · GitLab CI · CircleCI · Jenkins · ArgoCD Bug Tracking & Collaboration: Jira · ClickUp · Asana · Trello · Linear Data & Logs: Elasticsearch · Splunk · Logflare Whether you need 𝗘𝗡𝗗‑𝘁𝗼‑𝗘𝗡𝗗 𝗤𝗨𝗔𝗟𝗜𝗧𝗬 𝗔𝗦𝗦𝗨𝗥𝗔𝗡𝗖𝗘, a 𝗖𝗢𝗡𝗧𝗜𝗡𝗨𝗢𝗨𝗦 𝗧𝗘𝗦𝗧𝗜𝗡𝗚 𝗣𝗜𝗣𝗘𝗟𝗜𝗡𝗘, or help 𝗦𝗧𝗥𝗘𝗡𝗚𝗧𝗛𝗘𝗡𝗜𝗡𝗚 𝗬𝗢𝗨𝗥 𝗥𝗘𝗟𝗘𝗔𝗦𝗘𝗦, I bring structure, modern tooling, and a product‑aware mindset to your QA process. 🚀 𝗟𝗲𝘁’𝘀 𝗰𝗼𝗻𝗻𝗲𝗰𝘁 𝗮𝗻𝗱 𝗱𝗶𝘀𝗰𝘂𝘀𝘀 𝗵𝗼𝘄 𝘁𝗼 𝗵𝗶𝗴𝗵𝘁𝗲𝗻 𝘆𝗼𝘂𝗿 𝗿𝗲𝗹𝗲𝗮𝘀𝗲‑𝗿𝗲𝗮𝗱𝗶𝗻𝗲𝘀𝘀 𝗮𝗻𝗱 𝗿𝗲𝗱𝘂𝗰𝗲 𝗿𝗶𝘀𝗸𝘀!

Hello! I’m a Senior QA Tester and Project Manager with 7+ years of experience helping diverse industries like SaaS, AI, E-Commerce, Fintech, Healthcare, and Crypto businesses. I specialize in leading projects, optimizing workflows, and ensuring software quality through QA Testing and Project Management. I’ve successfully contributed to large-scale, high-impact platforms across multiple domains, delivering quality and efficiency at every stage. As a Top-Rated Upwork freelancer in Software QA Tester and Product & Project Management with a 100% client satisfaction rate, I’m committed to delivering scalable, efficient, high-quality solutions tailored to your business needs. 🌟 My Expertise 1. Software QA Testing 2. Functional, Regression, API & End-to-End Testing 3. Test Case Creation & Test Plan Documentation 4. Bug Tracking & Root Cause Analysis 5. Cross-Browser & Device Testing 6. Project Management & Sprint Support 7. Operations & Process Optimization 8. Product Analysis & Product Management 🏆 Key Achievements 1. Led 20+ Software QA Testing and Product & Project Management projects in Web and Mobile products with budgets ranging from $50K to $2M. 2. Consistently delivered high-quality Project Management and QA by introducing Processes, Test Cases, Regression suites, and QA workflows. 3. Improved product quality and release confidence by implementing structured QA processes and workflows. 4. Maintained 100% client satisfaction through clear communication and reliable delivery. 🛠️ Tools & Tech Stack 1. QA & Testing: Postman, Swagger, BrowserStack, Screaming Frog 2. Project Management: Jira, ClickUp, Trello, Asana, Azure DevOps, Linear 3. Analytics & UX: Mixpanel, Google Analytics, Hotjar, FullStory, Microsoft Clarity 4. Collaboration: Slack, Google Workspace, Microsoft 365, Zapier, Make 🚀 If you need a reliable QA Tester and Project Manager who understands both quality and delivery, let’s discuss how I can support your product. 📩 Send me a message, happy to discuss how I can support your QA or project needs. ✅ Keywords: Manual QA, QA Engineer, QA Tester, Web Testing, Mobile App Testing, Regression Testing, Functional Testing, End-to-End Testing, API Testing, Postman, Jira, Cross-Browser Testing, SaaS QA, Agile QA, Project Management

Senior QA Engineer specializing in Playwright, Appium, and Payment Testing for fintech and mobile applications. I help startups and product teams prevent production bugs, payment failures, and risky releases by combining automation testing with deep real-world QA experience. 10+ years testing Web, Mobile, API, and Payment systems across fintech, gaming, and global platforms. ⭐ Who I Help : ✅ Fintech startups ✅ SaaS platforms ✅ Mobile app teams ✅ Companies preparing for production release ✅ Teams needing automation setup from scratch 🚨 Prevent Costly Production Bugs • Regression testing before release • Exploratory testing to uncover hidden risks • Cross-device validation • UAT support 💳 Fintech & Payment Testing Specialist Indonesia payment ecosystem expert: • Bank transfer flows • OTP validation • E-wallet checkout testing • Payment settlement validation 🤖 Automation That Teams Actually Maintain • Playwright • WebdriverIO • Appium (iOS & Android) • CI/CD integration • Scalable Page Object Model architecture ⭐ Available for: • Short-term bug hunting • Release readiness testing • Automation framework setup • Long-term QA partnership

My goal is simple: help your SaaS product work better and feel better for users. Are bugs slowing your release? Users reporting issues? I’m a QA Engineer who ensures stable, user-friendly web apps. How I help: ✅ Manual QA (functional, regression, exploratory) for complex flows & edge cases ✅ UX/UI testing — usability, consistency, responsive workflows ✅ Automated UI flows (Selenium) for regression, smoke, performance ✅ API testing (Postman / REST) & database validation (SQL) ✅ Clear, structured test cases, bug reports, checklists, and QA documentation Why clients choose me: ✔ Strong bug-catching skills, improving product stability ✔ Fast, clear communication ✔ Structured QA approach with reproducible results ✔ Focus on making your product production-ready I test your product like a user, catch the bugs others miss, and help teams deliver smooth, reliable releases.

👋 Hi there! I'm Tatjana, your friendly neighborhood QA Engineer 🕵️‍♂️. 🌟 Quality assurance is not just a job for me; it's a passion! I get a thrill out of hunting down those pesky bugs and ensuring that software shines like a star. 🌠 💡 Here's what you can expect from me: ✅ Years of experience in software testing. ✅ A keen eye for detail, nothing escapes my radar. ✅ A knack for creating robust test plans and test cases. ✅ An obsession with delivering top-notch, bug-free software. ✅ A friendly, collaborative approach – I'm here to make your project shine! 💻 What I bring to the table: 🕶️ Proficiency in various testing types, including functional, regression, and usability testing. 🧩 Expertise in test automation tools like Playwright and Cypress. 📈 Experience in working with Agile and Scrum methodologies. 🚀 Let's collaborate and ensure your software is as flawless as can be! Whether it's web or mobile apps, I'm here to help you achieve software perfection. Feel free to reach out, and let's chat about your QA needs. 📬 Ready to squash those bugs and take your software to the next level? Let's get started! 💪😊 Keywords: Automation Framework, Browser Automation, Software Development, API Testing, Healthcare, End-to-End Testing, Gaming, Test Management, Functional Testing, Mobile App Testing, Bug Reports, Bug Tracking & Reports, Test Case Design, Manual Testing, Usability Testing, Financial Services, Test Strategy, Education Technology, EdTech, Selenium, Travel and Hospitality, REST API, Media and Entertainment, Playwright, Logistics and Supply Chain, Desktop Application Testing, Microsoft Azure, Data Migration Testing, Quality Assurance, Creative Writing, Node.js, Social Media Marketing, HTML, Security and Defense, Automated Testing, Performance Testing, Regression Testing, Test Documentation, Database Architecture, Docker, UI/UX Prototyping, GitHub, C#, GraphQL, Web Testing, User Acceptance Testing, Government and Public Sector, TypeScript, Appium, PostgreSQL, Bug Reports, Azure DevOps, Test Case Execution, Web Scraping, Communication Skills, Quality Control, Exploratory Testing, Puppeteer, React, .NET Framework, E-commerce, Docker Compose, Java, Web Design, XCUITest, Agile Testing, Data Integration Testing, DevOps, Cloud Computing, Software as a Service, SaaS, Cybersecurity, IoT, Internet of Things, Cryptocurrency, Blockchain Technology, Artificial Intelligence, Machine Learning, Digital Marketing, User Experience (UX), User Interface (UI), Test Automation, Test Coverage, Risk-Based Testing, Test Scenarios, Incident Management, Cross-Browser Testing, Black Box Testing, White Box Testing, Acceptance Testing, Field Testing, Load Testing, Security Testing, User Journey Testing, Telecommunications, Real Device Testing, Manual Test Scripts, Manual Test Logs, Client-Side Testing, Feedback Mechanisms, Continuous Testing in Manual QA, Test Planning, Test Environment Setup, Sanity Testing, Smoke Testing, Integration Testing.

I’m a QA Automation Engineer with 4+ years of experience testing web, mobile, backend, and blockchain systems. I specialize in building automation frameworks (Selenium, Appium, PyTest, TestNG, Cucumber), API testing (Postman, RestAssured, JUnit), and database validation (PostgreSQL, MySQL, Amazon RDS). I’ve improved release efficiency, boosted test coverage, and ensured product reliability for industries like e-commerce, healthcare, and blockchain media. My skills include performance testing (JMeter), CI/CD integration (Jenkins, TeamCity), and smart contract testing in Solidity. If you need a detail-oriented QA professional to ensure flawless functionality across platforms, I can help deliver it with confidence.

Experience of sixteen years in field of Software Quality Assurance, manual and automated testing. Knowledge of automated test tools - Microsoft Visual Studio testing tool (NTF), Selenium IDE, Selenium RC, Selenium Webdriver, Cupress, Playwrite.

Leveraging 10,000+ hours of hands-on QA expertise to help your software thrive. Providing full-time, dedicated support and reliable communication to accelerate your release cycles. ⭐⭐⭐⭐⭐ "Zafar has been a critical and highly valuable member of the team. He helped us grow from the very beginning and remains a strong contributor to the team. I cannot say enough great things about Zafar. He's awesome." - Kwesi Steele of Tokeet