Senior / Lead Automation Engineer (JavaScript Stack)

Job Title : Senior / Lead Automation Engineer (JavaScript Stack)

Location : Philadelphia, PA ( 100% Onsite Mandatory )

Role Summary

The client is seeking a Senior to Lead-level Automation Engineer with deep hands-on expertise in JavaScript / TypeScript-based automation frameworks . This role focuses on framework architecture, advanced test automation, CI / CD integration, and technical leadership , supporting high-traffic, modern web applications.

Key Responsibilities Automation Architecture & Framework Development

Design, build, and extend scalable automation frameworks using Playwright and WebdriverIO

Define automation standards, best practices, and reusable components

Ensure framework scalability, maintainability, and performance

Test Development & Execution

Develop robust UI and API automation scripts using JavaScript / TypeScript

Validate complex user journeys, business workflows, and RESTful APIs

Execute automated test suites across multiple browsers and environments

Proactively troubleshoot, stabilize, and eliminate flaky tests

CI / CD & DevOps Integration

Integrate automated tests into CI / CD pipelines (GitHub Actions, Jenkins, GitLab)

Enable shift-left testing and fast feedback loops

Support containerized execution using Docker and cloud platforms

Leadership & Collaboration

Act as a technical lead for automation initiatives

Mentor junior and mid-level automation engineers

Collaborate with Developers and Product Owners in an Agile / Scrum environment

Identify automation opportunities early during design and planning phases

Required Skills & Qualifications Core Technical Skills

Expert proficiency in JavaScript or TypeScript

3+ years of hands-on experience with Playwright and WebdriverIO

Strong expertise in Page Object Model (POM) and BDD (Cucumber / Gherkin)

API testing experience using Axios, Supertest, or Playwright Request API

CI / CD pipeline integration experience

Familiarity with Docker and cloud-based test execution ( BrowserStack, LambdaTest )

Preferred Qualifications

Experience testing large-scale, high-availability web applications

Exposure to cloud-native or microservices-based architectures

Prior experience mentoring automation engineers or owning automation roadmaps

eye