Oksana Maister

QA Engineer @ CardFree

About

Detail-oriented QA Engineer with 5 years of experience testing web and mobile applications. I design and execute test plans and write clear, traceable test cases across functional, regression, integration, and acceptance testing - ensuring both technical precision and a seamless user experience. I blend the depth of manual testing with automation efficiency, using modern tools to streamline workflows, improve test coverage, and accelerate defect detection. Known for being reliable, adaptable, and business-focused, I thrive in Agile environments - driving quality at every stage and helping teams deliver stable, user-ready products. I help teams deliver faster, reduce risk, and build software users rely on - again and again. Tools I work with: Jira or Trello, TestRail or Qase, Postman, Selenium WebDriver, Pytest, Cypress, GitHub, SQL (MySQL, SQLite), Swagger, Datadog. OS: macOS, Linux (Ubuntu), Windows, iOS, Android.

Country

United States

City

San Francisco

Industry

Computer Software

Skill

pytest, requests, Bug Reporting, Data Validation, Beta Feature Feedback, Client Onboarding, Process Optimization (Manufacturing), Database Testing, Mobile Testing, User Acceptance Testing, User Scenarios, BrowserStack, TestFlight, Retrospectives, Agile Methodologies, UI Testing, User Stories, Epic, Swagger, Continuous Integration and Continuous Delivery (CI/CD)

Experience

QA Engineer

CardFree

2024-12 - Present · 1 yr 10 mos

San Francisco Bay Area

Software Quality Assurance Engineer

Williams-Sonoma, Inc.

2023-3 - 2024-11 · 1 yr 9 mos

San Francisco Bay Area

A tech-driven retailer of premium home furnishings and kitchenware. • Reduced regression testing time by 40% through automation of UI and API test suites using Python (Selenium WebDriver, Pytest, Requests). • Created and managed test plans and cases in TestRail, boosting test traceability and cutting test gaps by 25%. • Performed API testing with Swagger and backend validation, preventing critical integration issues before release. • Integrated automated tests into GitHub Actions CI/CD pipelines, accelerating deployment. • Monitored production with Datadog, identifying performance issues early and contributing to a 20% drop in post-release incidents. • Mentored junior QA engineers, cutting their onboarding time in half and increasing overall team output. • Wrote detailed bug reports in Jira and collaborated closely with the development team to verify bug fixes against new builds.

Software Tester

Athena Security Inc.

2020-2 - 2022-1 · 2 yrs

United States

AI-powered Weapon Detection System using Computer Vision and Machine Learning. • Executed 500+ manual test cases for iOS mobile apps and responsive web portals, covering functional, regression, and user acceptance (UAT) testing - ensuring feature stability across multiple user scenarios. • Created and maintained comprehensive test documentation in TestRail, including test cases and test runs; logged and tracked bugs in Jira - expanding test coverage and supporting 3 major app releases. • Manually validated app behavior across iOS devices using BrowserStack and TestFlight, ensuring consistent functionality across screen sizes, OS versions, and hardware configurations. • Conducted detailed visual UI checks, identifying and reporting ~250 design-related issues that improved design consistency and user experience. • Maintained traceability matrices to ensure all business requirements were fully mapped to test cases, enabling structured and accountable test execution throughout the QA cycle. • Actively participated in Scrum ceremonies - including daily stand-ups, sprint planning, and retrospectives - to align with development teams, prioritize test efforts, and advocate for quality throughout the sprint lifecycle.