Senior Quality Engineer — Chromium Browser Extensions &amp Ecommerce

About the Role -------------- We're looking for an experienced Quality Engineer to test ecommerce and web experiences, with a strong emphasis on Chromium-based browser extensions (Chrome, Edge). This role blends hands-on manual testing and defect investigation with maintenance of existing Playwright automation — you'll need to be equally comfortable digging into browser dev tools to root-cause an issue and extending an existing test suite. Hands-on Chromium extension testing experience is a must-have for this role, not a nice-to-have. This is an onsite contract engagement, five days per week. What You'll Do -------------- * Create test plans and test cases from product requirements and designs * Perform manual testing of ecommerce and web experiences, with a focus on Chromium-based browser extensions (Chrome, Edge) * Conduct exploratory, regression, and end-to-end testing * Report defects with clear reproduction steps and supporting evidence * Investigate issues using browser dev tools, logs, HAR files, and network traces * Maintain test cases and regression suites in a test management tool (e.g., Qase) * Build and maintain Playwright tests in Python or TypeScript * Work within existing automation frameworks and CI pipelines * Collaborate closely with engineering and product teams, communicating results, blockers, and risks clearly What You Bring -------------- * Hands-on Chromium browser extension testing experience (Chrome and/or Edge) — required * 5+ years of software testing experience * Strong manual testing and defect investigation skills, including test plan and test case creation * Hands-on experience with Playwright (Python or TypeScript) * Strong understanding of browser behavior and web technologies, including browser dev tools and network debugging * Experience with Jira or similar test management and issue tracking tools * Experience working within CI pipelines and existing automation frameworks * Ability to work onsite five days per week Nice to Have ------------ * Safari extension testing experience (support planned but not yet required) * Experience testing ecommerce-specific workflows (checkout, payments, cart logic) Why This Role ------------- * Full-spectrum QE ownership: Blend manual, exploratory, and automated testing rather than being siloed into one * Real technical depth: Root-cause issues using dev tools, HAR files, and network traces, not just log defects * Established foundation: Work within existing CI/automation pipelines rather than building from scratch * Direct collaboration: Close partnership with engineering and product teams How to Apply ------------ Ready to bring rigorous QE ownership to ecommerce and browser extension testing? Apply through Toptal here: https://www.toptal.com/talent/apply