Playwright QA Automation Engineer — UI & API Mastery

Ethereum Technologies; Chicago (IL); On-site; USD 88,000 - 125,000; Full time

Job summary

Ethereum Technologies in Chicago, IL seeks a QA Automation Engineer to develop end-to-end UI automation across Chromium, Firefox, and WebKit using Playwright. You will build reusable fixtures, manage authentication state, and validate APIs for robust service quality.

The role requires 3–6 years of automation experience, a Bachelor’s degree, strong Playwright knowledge, and CI/CD, Git, and SQL proficiency within an Agile team.

Qualifications

• Bachelor’s degree required in computer science, engineering, or related field.
• 3–6 years hands-on test automation experience, including 2+ years with Playwright building and maintaining production automation frameworks.
• Demonstrated experience architecting automation frameworks from scratch.
• Solid understanding of Playwright core concepts: locators, auto-waiting, fixtures, projects, parallelism, retries, tracing, and configuration.
• Proficiency with API testing — REST, JSON payloads, status code and schema validation.
• Hands-on CI/CD integration experience with at least one of GitHub Actions, Jenkins, Azure DevOps, or GitLab CI.
• Strong Git skills—branching, pull requests, merge conflict resolution, code review participation.
• Working SQL knowledge for test data setup and backend validation.
• Solid QA fundamentals: test design techniques, boundary and equivalence analysis, risk-based testing.
• Experience in Agile/Scrum with sprint-based delivery.
• Strong debugging and root cause analysis skills; ability to investigate failures across UI, API, and data layers.
• Clear written and verbal communication to explain quality risk to non-technical stakeholders.

Responsibilities

• Develop end-to-end UI automation suites covering critical workflows, regression scenarios, and smoke tests across Chromium, Firefox, and WebKit.
• Write resilient locators using Playwright’s role-based and test-id strategies, with auto-waiting and web-first assertions to reduce flakiness.
• Build reusable fixtures, custom commands, and test utilities; manage authentication state via storageState to avoid redundant login flows.
• Implement API test automation using Playwright’s request fixture for service-layer validation and data setup/teardown.
• Implement network interception and mocking (page.route) to isolate the UI from unstable dependencies and test error/edge cases.

Skills

Playwright

Automation framework design

UI automation

API testing

CI/CD

Git

SQL

Agile/Scrum

Debugging

Communication

Education

Bachelor’s degree in computer science, Engineering, or related field

Tools

Playwright

Postman

REST Assured

GitHub Actions

Jenkins

Azure DevOps

Job description

Ethereum Technologies in Chicago, IL seeks a QA Automation Engineer to develop end-to-end UI automation across Chromium, Firefox, and WebKit using Playwright. You will build reusable fixtures, manage authentication state, and validate APIs for robust service quality.

The role requires 3–6 years of automation experience, a Bachelor’s degree, strong Playwright knowledge, and CI/CD, Git, and SQL proficiency within an Agile team.