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Passionate Software Test Engineer with over 7 years of experience delivering high-quality web and mobile applications. Expert in writing robust automation frameworks using Playwright and Selenium with Python (Pytest) and JavaScript. Proven track record in Agile environments, executing end-to-end, regression, and backend testing across the full SDLC. A detail-oriented problem solver dedicated to bridging the gap between complex code and seamless user experiences through BDD, TDD, and rigorous exploratory testing.

Looking for a QA Engineer who can ensure your application is reliable, user-friendly, and release-ready? With 6+ years of experience in Software Quality Assurance, I have tested 100+ Android & iOS applications and 70+ web applications across SaaS, eCommerce, Healthcare, Banking, ERP, POS, and other industries. I specialize in both Manual and Automation Testing, helping clients identify critical issues early and improve overall product quality. My Expertise: - Manual Testing - Automation Testing - Functional, Regression & Exploratory Testing - End-to-End Testing - Mobile App Testing (Android & iOS) - Cross-Browser & Cross-Platform Testing - API Testing (Postman & Swagger) - AI Model, AI Agent & Chatbot Testing - UI/UX & Usability Testing - Payment Gateway Testing Tools: Selenium • Playwright • Postman • BrowserStack • JIRA • Trello • Asana • Linear • Google Sheets • Notion What You'll Receive: - Detailed bug reports with screenshots and screen recordings - Clear steps to reproduce issues - Test cases and checklists - Automation test scripts (when required) - Regression testing reports - Actionable recommendations to improve quality and user experience I value clear communication, attention to detail, and timely delivery. Whether you need complete QA support before a product launch, regression testing for new releases, or automation to improve testing efficiency, I can help ensure your software meets high-quality standards. Let's work together to build software your users can trust. -------------------------------------------------------------------------------------------------------- Related Keywords: Manual Testing, API Testing, Web Testing, Mobile App Testing, Regression Testing, Cross-Browser Testing, Test Case Design, Jira, UI/UX Testing, End-to-End Testing, Functional Testing, Bug Reports, Quality Assurance, Payment Gateway Testing, iOS Testing, Android Testing, Test Plan, Usability Testing, User Testing, Software Testing.

Do you need accurate, actionable insights from your survey, research, or business data to make informed decisions through powerful statistical and data science analysis? Look no further! I am a top-rated and full-time research data analyst with >8 years of experience in IBM SPSS, R, Python, SAS, STATA, NVIVO, JMP, JASP, Atlas.ti, Excel/Google Sheets. As a statistics wiz, survey expert, and data science practitioner, my areas of expertise include: ⭐️ Questionnaire/survey design & validation ⭐️ Survey & research data analysis: descriptive, inferential (Chi-Square, regression, correlation, t-test, ANOVA, etc.), predictive modeling ⭐️ Detailed interpretation & storytelling of results ⭐️ Report writing, academic formatting (APA, Harvard), and publication-ready outputs ⭐️ Advanced automation & scripting for reproducible workflows I provide a variety of services including but not limited to: ★ Sample size calculations ★ Correlation, regression, & multivariate analysis ★ Hypothesis testing & statistical modeling ★ Factor analysis (EFA/CFA), structural equation modeling ★ Predictive analytics & data visualization ▶︎ and much more My specializations: Health Research & Predictive Analysis Master's/Ph.D. Thesis & Dissertation Modeling Company Survey & Performance Analytics Social, Economic & Behavioral Data Science Projects What clients say 👉👉👉 ☆☆☆☆☆ "She is always of great help, and the turnaround time is on point. I can depend on her for assistance and explaining the work thoroughly." "Great work. Amazing communication and delivered the project on time." "Esther's results were clear, organized, and thoroughly explained. Excellent work! I'm so impressed! I appreciate her efforts and insight to the analysis of the project!" ☆☆☆☆ ✍️ Feel free to get in touch, and we can discuss your project further

QA Engineer | Manual Testing | API Testing | Mobile & Web Testing | Helping Startups Launch Bug-Free Products Hi, I’m Sameer Sattar, a results-driven QA Engineer with strong expertise in both manual and automation testing for web and mobile applications across iOS, Android, and macOS. I focus on delivering high-quality, stable, and user-friendly products by identifying issues early and ensuring smooth releases. I specialize in functional, regression, performance, and UI/UX testing, working closely with developers and product teams in Agile environments to maintain quality at every stage of development. 🔹 What I Offer 🧪 Manual Testing • Functional, Regression & Non-Functional Testing • UI/UX & Cross-Browser Testing • Detailed Test Cases, Bug Reports & Documentation 🤖 Automation Testing • Selenium, Cypress & Playwright • Reliable and maintainable automation frameworks • Web application test automation 🔌 API Testing • REST API testing using Postman • API validation, response verification & error handling ⚡ Performance Testing • Load & stress testing using JMeter • Performance bottleneck identification 🗄️ Database Testing • SQL queries for backend data validation 🛠️ QA Tools & Platforms • Bug Tracking: Jira, ClickUp, Taiga • Cross-Browser & Real Device Testing: BrowserStack 🔹 Why Work With Me? ✔ Strong attention to detail and quality mindset ✔ Clear, well-structured bug reporting ✔ Experience working in Agile teams (Sprints, Stand-ups, Release Notes) ✔ Proactive communication with developers & stakeholders ✔ Focused on improving product reliability and user experience Availability ⏱️ Hours per week: As needed – Open to offers 📌 Open to short-term & long-term QA projects

🌟 ISTQB® Certified QA Engineer 🌟 Associate QA Engineer at IFS R&D International 🌟 1.5+ Years of Enterprise and Freelance QA Experience 🌟 Strong Manual Testing with Practical Automation Skills 🌟 5-Star Rated Upwork QA Tester About Me: I am an ISTQB®-CTFL certified Software Quality Assurance Engineer with hands-on experience testing real-world web applications in both enterprise and freelance environments. I currently work as a QA Engineer at IFS R&D International, where I contribute to enterprise-scale systems that require high reliability, accurate data handling, and disciplined release validation. Alongside my enterprise role, I actively support Upwork clients by performing structured manual testing, logging high-quality defects, and reviewing applications from an end-user perspective. I approach testing with a strong sense of ownership and responsibility toward the user experience, not just feature validation. I am comfortable working across different domains and can quickly adapt to new products, technologies, and business requirements. The following are some of my core competencies. • Manual QA testing of web applications • Functional, regression, smoke, and exploratory testing • Test planning, test case creation, and execution • End-to-end user flow validation and usability review • Defect tracking and reporting using Jira • Reviewing UI implementations against Figma designs • API testing using Postman (REST, authentication validation) • Basic database validation using SQL • Selenium WebDriver automation using Java • TestNG, JUnit, and Cucumber (BDD) based automation frameworks • Page Object Model for maintainable test automation • Cross-browser testing and basic Selenium Grid execution • CI-friendly testing practices and release validation • Experience working in Agile and DevOps-driven teams • Ability to work independently and collaborate effectively with developers 🏆 Reviews and feedback from my clients 🏆 ⭐⭐⭐⭐⭐ “Ravindu is an exceptional, highly impactful QA tester. He approached testing with a deep sense of ownership, curiosity, and responsibility toward the end user, not just the product. What truly sets his work apart is his ability to think like a real user while testing like an engineer. You didn’t just identify issues, you helped the team understand why they matter and how they affect user confidence and flow. Also looked into application code that helped in narrowing the fix time.” How I Work: I focus on clarity, consistency, and accountability. You can expect well-documented test cases, clear defect reports, timely communication, and honest progress updates. I test beyond happy paths and always explain the real impact of issues so teams can prioritize fixes effectively. If you are looking for a QA engineer who thinks like a user, tests like an engineer, and takes responsibility for product quality, I would be happy to discuss how I can support your project.

I’m a detail-oriented Manual QA Tester with hands-on experience testing web and mobile applications, validating user flows, identifying issues, and providing clear and actionable bug reports. I have experience working on projects involving: • Web and mobile applications • Multi-role systems and user workflows • E-commerce and logistics platforms • E-learning applications • Feature and usability testing • Cross-browser and mobile testing What I Can Help You With: ✔ Functional Testing ✔ Smoke, Sanity & Regression Testing ✔ Web & Mobile App Testing ✔ Exploratory & UI/UX Testing ✔ Test Case Creation & Execution ✔ Bug Reporting, Documentation & Retesting ✔ Cross-Browser & User Flow Testing ✔ Feature Validation & Usability Testing Tools I Use: Jira | ClickUp | Google Sheets | Google Docs | Slack | Discord I don’t just check whether a feature works—I test from the user’s perspective, explore different scenarios, validate workflows, and look for issues that could affect the overall user experience. You can expect: ✔ Clear and detailed bug reports ✔ Reproducible steps with screenshots or videos ✔ Thorough testing and retesting ✔ Well-documented test cases and results ✔ Clear communication and timely updates ✔ Reliable QA support throughout the testing process My goal is simple: help you deliver a stable, reliable, and user-friendly product by identifying issues before they reach your users.