Hire the Best QA Engineers
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I love breaking software. QA Engineer with 5+ years of experience testing web, desktop and mobile apps (iOS & Android). Poorly made software genuinely bothers me and I specialize in finding bugs, ensuring smooth user experiences, and delivering clear, actionable reports. I test like a user, think like a developer, and report like a pro. I write automation scripts in Playwright or Selenium, with Python or js. I also offer information security testing, reviewing production code, network logs, db exposure and any other data leakage that shouldn't be shared to an end user that is potentially harmful to the business or security in general. Devices: MacBook Air M4 (MacOS Tahoe 26.4 (Serial Number D695WV20FM) iPhone 16e (iOS 26.2.1, Serial Number DVX707JKMQ) Windows 10 and 11 PC's, and various android phones. Certificates: ISTQB Certified C2 English Certificate Tools I know how to use: Web UI & browser - Playwright, Selenium, Cypress, WebdriverIO API & Integration - Postman, Citrus, SoapUI Unit & framework-level - JUnit, pytest, TestNG, Visual Studio Performance & load - Apache Jmeter, k6 Security - OWASP ZAP, BurpSuite, Nessus, Yaazhini Mobile - Appium, Espresso, APK extractors, JADX, Android Studio, iMazing Test management - TestRail, Zephyr, Jira, Notion, Linear, ClickUp BDD & test design - Cucumber, Jasmine Monitoring & observability - Sentry Environment & infrastructure - Docker Version control & code review - GitHub, GitLab Compatibility & cross-platform - Sauce Labs, LambdaTest CI/CD & pipeline - GitHub Actions, Gitlab CI Database & data validation - SSMS, Dbeaver, Sanityio db Mocking & service virtualisation - WireMock, Mockito thanks for reading

QA Engineer with 4+ years of experience in manual testing for web and mobile applications. I help teams catch critical issues early, improve usability, and release stable, reliable products with confidence. I provide thorough manual testing with clear, structured bug reports that make it easy for teams to identify issues, prioritize fixes, and move faster. My goal is not just to find bugs, but to help improve the overall quality and user experience of your product before it reaches customers. What I can help with: - Manual testing for web and mobile apps - Functional, usability, and responsive testing - Regression testing - Cross-browser and cross-device testing - Clear bug reports with detailed steps to reproduce - Screenshots, findings, and actionable recommendations - Test plans, checklists, and QA documentation I focus on clear communication, thorough documentation, and fast turnaround so your team can make release decisions quickly and confidently. If you need a reliable QA specialist who can test carefully, report clearly, and help deliver a polished product, I’m ready to help.

I am a Manual QA Engineer specializing in functional, regression, and UAT testing for SaaS web applications. I have 6+ years of hands-on experience working in Agile/Scrum teams, executing manual test cases, performing exploratory testing, and delivering clear, actionable bug reports that help teams release stable, high-quality products faster. I also leverage AI tools to accelerate QA workflows, including generating test cases, creating synthetic test data, and improving exploratory testing coverage ✅ Manual QA Services I Provide: 🔹Manual functional testing for web applications 🔹Regression testing before production releases 🔹User Acceptance Testing (UAT) support and validation 🔹Exploratory testing to identify edge cases and usability issues 🔹Role-based and permission testing (Admin, Team Lead, HR, Employee, etc.) 🔹Test case creation and execution (Azure DevOps / Jira) 🔹Bug reporting with clear steps, screenshots/videos, severity, and priority 🔹Cross-browser testing (Chrome, Firefox, Edge) 🔹Responsive and UI testing 🔹iOS testing via BrowserStack 🔧Tools I Use: Azure DevOps, Jira, BrowserStack, Postman (basic API validation), Chrome DevTools Automation support (light): Selenium WebDriver + TestNG for repetitive test flows 🛠️ My QA Workflow: I review requirements and acceptance criteria, design and execute manual test scenarios, perform regression and exploratory testing, log and retest defects, and conduct final release validation. I collaborate closely with Product Owners, Business Analysts, and developers, and I regularly participate in Scrum ceremonies. 🏆 Experience Highlights: Created and maintained large manual regression test suites Tested dashboards, workflows, forms, and complex business logic Supported multiple UAT phases using simple, effective QA checklists 📬 Availability: Open to hourly or fixed-price Manual QA projects. If you share your staging environment and key user flows, I can start with a manual smoke or regression test and deliver clear findings quickly.

👋🏼 Hello! I’m Petar, a 27-year-old with 5 years of experience as a QA Engineer with a Bachelor of Science in Informatics and a passion for software quality assurance. 🔍 I have a detail-oriented and systematic approach to uncovering bugs throughout the testing process. 🚀 Dedicated and self-driven, I consistently strive for excellence in every task. 🛠 Expertise in: - Requirement analysis, design review, and test planning for new features - Development and maintenance of test cases for newly implemented features and improvements - Manual Testing (Regression Testing, Smoke Testing, Sanity Testing, Exploratory Testing, Cross Browser Testing, UI/UX Testing) - Performance Testing using JMeter - API Testing with Postman 🏥 Experience with complex systems in industries such as: - Drug design - Medical - Travel - Retail Solutions - Insurance - Parliaments - Various small websites and applications 💻 Skilled in testing desktop, web, and mobile apps across: - Linux, Windows, macOS - Android & iOS 📘 Documentation and User training - Writing User Manuals - Conducting end-user training procedures to enhance user adoption and reduce support requests - Keeping all the test documentation up to date 🛠️Other useful skills: - Python - HTML, CSS, JavaScript (basic) - All LambdaTest features - Selenium IDE - MS Office - WordPress 👥 Adaptable to both team environments and individual work in various project dynamics. ⭐️ Why you should choose me over another freelancer ⭐️ ➡️I am committed to delivering high-quality, professional work, ensuring a positive experience for my clients. My goal is to exceed expectations, leaving clients satisfied with the results and eager to collaborate again in the future. ➡️My passion for testing, coupled with my experience in various systems and platforms, will make an immediate impact on your team. If you have any questions or would like to discuss your project, please feel free to reach out. Let’s work together to ensure your software runs flawlessly! 🚀

Before your users find bugs, I do. I'm a Top Rated Plus QA Engineer with 6+ years of experience helping startups and growing companies release stable, high-quality web, mobile, and API applications. - 100% Job Success - Top Rated Plus - 1,700+ Upwork hours worked - 27 successfully completed Upwork projects I've worked on production systems used by thousands of users, including EV charging platforms, payment integrations, fintech products, crypto platforms, SaaS applications, iGaming products, and mobile applications. I don't just execute test cases—I think like your users while reporting like your developers. What I can help you with ✅ Manual Testing • Functional Testing • Regression Testing • Smoke Testing • Exploratory Testing • User Acceptance Testing (UAT) 📱 Web & Mobile Testing • Web Applications • Mobile Apps (iOS & Android) • Cross-Browser Testing • Cross-Device Testing • BrowserStack 🔗 API Testing • REST APIs • Postman • Request/Response Validation • Error Handling • Authentication Testing • Integration Testing 📋 QA Documentation • Test Cases • Test Plans • Regression Suites • Bug Reports • Xray • Jira • Confluence 🗄 Database Validation • SQL Queries • Data Verification • Backend Validation ⚙ Additional Experience • AWS CloudWatch log analysis • Charles Proxy • Figma • Agile / Scrum • Basic Playwright & Cypress automation 💡 What makes me different? Many testers verify that software works. I focus on finding the bugs your customers would discover after release. My goal is not only to report defects, but to help your team release faster with fewer production issues. Every bug report I submit includes: - Clear reproduction steps - Expected vs Actual Result - Screenshots or screen recordings - Environment details - Priority & Severity recommendation Developers appreciate my reports because they're clear, reproducible, and immediately actionable. 🏆 Industries I've Worked In • EV Charging Platforms • FinTech • Payment Systems • Crypto • SaaS • E-commerce • iGaming & Casino • Mobile Applications 🤝 I work well with • Startups preparing for launch • Agile development teams • SaaS companies • Agencies • Product teams • Long-term QA support • Release testing • Regression cycles If you're looking for someone who will thoroughly test your application, communicate clearly with your developers, and help you deliver a polished product to your users, I'd be happy to help. Let's discuss your project.

Hello! I’m an enthusiastic and results-driven Web Developer, passionate about building modern, efficient, and scalable web solutions. Although I’m a new freelancer on Upwork, I bring hands-on experience in full-stack development, DevOps, and WordPress website management. My goal is to deliver high-quality work with clean code, strong functionality, and a professional user experience. Here’s what I can help you with: Web Development & API Integration Full-stack development using .NET Core (C#), Java Spring Boot, and Django. Building RESTful APIs and scalable MVC-based architectures. Frontend development with JavaScript, HTML, CSS, and Bootstrap for responsive designs. DevOps & Deployment Docker containerization (frontend, backend, database). Kubernetes deployments including Ingress, Services, StatefulSets, ConfigMaps, and Secrets. Automating deployment workflows for better scalability and reliability. WordPress Development Website setup, theme customization, and plugin configuration. Elementor page building, basic SEO optimization, and troubleshooting. Regular content and structure updates with attention to performance and design. Project Experience MovieNight App: CRUD web app with user registration, event management, invitations, ratings, and API integration. E-Accommodation App: Full DevOps setup with Docker and Kubernetes orchestration for Java Spring Boot + React application. Additional Skills Database management with PostgreSQL and SQL. Git & GitHub for version control. Web optimization and responsive design best practices. Why Work With Me? - Strong technical foundation & clean coding practices - Focus on functionality, performance & user experience - Fast learner, adaptable, and reliable - Organized and deadline-oriented - Excellent communication skills and team spirit