Senior Quality Engineer — Chromium Browser Extensions & 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