Olena Machula

QA Lead with 7+ years of software quality assurance experience and 3 years leading a team of 5 QA Engineers. Experienced in test strategy, shift-left quality, risk-based and exploratory testing, complex end-to-end validation, release quality, and test automation. 2 years of hands-on experience with Playwright and JavaScript for web UI and end-to-end test automation. Defined automation priorities, identified requirement gaps and quality risks before development, and acted as the QA escalation point for Product and Engineering teams.

QA Lead / Senior Quality Assurance Engineer at Möbel Pfister AG (2023-04 – 2026-07)

• Led quality delivery across 2 interconnected systems and 4–5 production releases per month by defining test strategy, risk-based scope, quality objectives, and release quality gates with Product and Engineering stakeholders.
• Managed and developed a 5-person QA team through goal setting, 1:1s, performance reviews, mentoring, and day-to-day prioritisation.
• Reduced late discovery of quality risks by applying shift-left testing during requirements review, refinement, and feature planning to identify gaps, dependencies, and blockers before development.
• Increased automated regression protection for business-critical web functionality by developing and maintaining Playwright tests in JavaScript, covering high-risk end-to-end scenarios and critical user flows, while also defining automation priorities for the QA team.
• Protected business-critical workflows across payment integrations, REST APIs, asynchronous processes, and webhooks through exploratory, integration, regression, API, and complex end-to-end testing.
• Increased automated regression protection for business-critical functionality by defining automation priorities and guiding the QA automation engineer toward high-risk and high-value scenarios.
• Improved QA workflows across requirement analysis, test case design, and bug reporting by introducing AI-assisted processes using ChatGPT and Claude, while acting as the QA escalation point for quality risks and release blockers.

Quality Assurance Engineer at MobiDev (2021-09 – 2023-03)

• Improved early defect detection by applying shift-left testing during requirements analysis, identifying missing scenarios, inconsistencies, and unclear business rules before development.
• Increased confidence in data consistency across 2 interconnected systems by testing cross-system database synchronization, validating order data transfer, field mapping, completeness, accuracy, and processing status.
• Strengthened integration coverage by validating positive, negative, duplicate, delayed, and incomplete-data scenarios across APIs, backend services, and receiving-system workflows.
• Improved product quality across web, Android, and iOS applications by executing functional, regression, integration, API, and exploratory testing under different device, UI, and network conditions.
• Reduced investigation time for critical defects by analysing API behaviour, browser DevTools, backend integrations, and production issues, and collaborating with developers to identify root causes and verify fixes.

Quality Assurance Engineer at NearShorePartner.ch (2019-02 – 2021-08)

• Improved product quality across web and mobile applications by executing functional, non-functional, regression, and integration testing throughout the development lifecycle.
• Strengthened API and system integration coverage by testing REST services with Postman and Swagger, validating expected behaviour and collaborating with developers to investigate and resolve defects.
• Improved test coverage and regression consistency by creating, executing, and maintaining structured test cases for business-critical functionality.

MSc in Software Engineering – Kharkiv National University of Radioelectronics (2020)

BSc in Software Engineering – Kharkiv National University of Radioelectronics (2018)