Oscar T.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Aug 7, 2026.

* Expert-Vetted - Top 1% talent on UpWork. * Over 12 years as Software QA Engineer with professional experience in Manual Testing, Performance Testing, DevOps and Automation frameworks development. • Working very well in distributed remote teams as freelancer with 20000+ hours registered in Upwork. • Software testing and quality assurance of web-based, desktop and mobile applications. • User-level test automation with CodedUI, Selenium, Capybara, Cucumber, Calabash, Specflow, Appium, Pytest, RobotFramework. • Efficient black box and gray box manual testing. • Proficient in creating/analyzing test plans, creating test cases, and designing test strategies. • Skilled in Agile and Waterfall software development life cycle methodologies. • Excellent problem solving skills and experience communicating effectively with all functional teams to understand customer usage models and requirements. • High standards of excellence and attention to detail. • Consistently delivers projects on schedule and meets customer's requirements. • Ability to develop and present test plans, testing summaries, defect reports, and defect trend data throughout the project test cycle. • Interact actively with the team in identifying bugs. • Quick learner, self-motivated and problem solving skills. • Excellent technical analytical skills as well as logical reporting skills. • Good team player with an ability to work independently. Technical Skills: ------------------ • Manual Testing: Desktop applications | Web applications | System applications | Mobile applications | Regression testing | Functional testing | Integration testing. • Automation Development: Selenium | CodedUI | Capybara | Cucumber | Calabash | Appium | Specflow | Pytest | RobotFramework. • Programming languages: C# | Ruby | Python | Java | JavaScript | SQL. • Performance Tools: Jmeter | Gatling | Backtrack | W3af. • API Testing Tools: Postman | SoapUI. • Project Management Tools: TFS | Jira | Trello | Confluence. • Test Management/Bug reporting Tools: Testlink | Jira Zephyr | Jira Xray | Jira | TFS | Bugzilla. • Version Control: GitHub | Stash | BitBucket. • DevOps: TeamCity | Jenkins | Docker | IIS | Heroku. Available Physical Testing Devices ---------------------------------------- • Windows Desktop | Linux Desktop | Laptop. • Mac OS: Desktop | MacMini. • iOS: iPhone XS | iPhone 6S. • Android: Samsung Galaxy S23 | Samsung Galaxy S10 | Tablet. • VMWare tools to virtualize any OS required.