Senior QA Automation Engineer: Elevate API & UI Testing

Experion Technologies; United States; On-site; USD 110,000 - 160,000; Full time

Job summary

Experion Technologies is seeking a skilled Quality Engineering (QE) Automation Engineer to join our team. This role embeds directly with our application development teams to design, build, and maintain automated test systems that improve product quality, resiliency, and delivery confidence.

You will work closely with application engineers to ensure quality is built into the software lifecycle through automated testing, CI/CD integration, and proactive test strategy.

Qualifications

• Bachelor's degree or equivalent practical experience in computer science, engineering, or related field.
• 8+ years of experience in software quality engineering or test automation.
• Experience building automated tests for backend APIs and services.
• Experience with frontend test automation for modern web applications.
• Familiarity with Git-based version control and CI/CD workflows.

Responsibilities

• Design, implement, and maintain automated test suites across multiple layers of the application stack.
• Partner with application engineers to embed testing into feature development and CI/CD pipelines.
• Develop and maintain unit, integration, API, and end-to-end tests.
• Build resiliency and non-functional tests focused on stability, reliability, and failure scenarios.
• Create test harnesses, mocks, and test data strategies to support reliable automation.
• Implement end-to-end testing for frontend applications using Playwright.
• Develop API and service-level tests for backend systems built with Express.js and NestJS.
• Contribute to test strategies for cloud-integrated systems and AWS-based services.
• Help define quality gates and automation standards within the build and deployment pipeline.
• Diagnose test failures and collaborate with engineers to resolve root causes.
• Continuously improve test coverage, execution speed, and signal quality.
• This role is an individual contributor position embedded within application teams, with strong influence on engineering quality practices.

Skills

Automated testing

CI/CD integration

Playwright

API testing

Frontend test automation

Git & version control

Agile collaboration

Education

Bachelor's degree in computer science / engineering or related field

Tools

Playwright

Express.js

NestJS

AWS

Git

CI/CD pipelines

Job description

Experion Technologies is seeking a skilled Quality Engineering (QE) Automation Engineer to join our team. This role embeds directly with our application development teams to design, build, and maintain automated test systems that improve product quality, resiliency, and delivery confidence.

You will work closely with application engineers to ensure quality is built into the software lifecycle through automated testing, CI/CD integration, and proactive test strategy.