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Senior Test Automation Engineer

Job in O'Fallon, St. Charles County, Missouri, 63366, USA
Listing for: 3B Staffing
Full Time position
Listed on 2026-06-03
Job specializations:
  • Software Development
    DevOps, Cloud Engineer - Software, Software Engineer, Senior Developer
Job Description & How to Apply Below
We are seeking a Senior Test Automation Engineer with strong expertise in API and UI test automation, Java/J2EE technologies, and Microservices. The ideal candidate should have at least 5+ years of experience in API testing, be proactive, take initiative, and possess strong leadership and communication skills. This role requires hands-on experience with Selenium, Rest Assured, CI/CD, and cloud environments (AWS, Azure, or PCF).

The candidate must be comfortable working in an Agile development environment, collaborating with Business/Systems Analysts and Quality Engineers in a Behavior-Driven Development (BDD) setting.

Key Responsibilities:
  • Develop applications using Java/J2EE technologies in a Microservices architecture.
  • Design, develop, and execute automated test cases for both API and UI testing using Rest Assured and Selenium.
  • Participate in Agile ceremonies and team prioritization discussions with Product and Business stakeholders.
  • Estimate and own delivery tasks, including design, development, testing, deployment, configuration, and documentation.
  • Collaborate with developers and testers to ensure software quality, assisting in problem resolution during Regression, UAT, and customer testing.
  • Integrate automated tests into CI/CD pipelines using tools like Jenkins, Bamboo, and Chef.
  • Perform code reviews and mentor junior team members.
  • Ensure adherence to secure coding standards and manage vulnerabilities using tools like Sonar Qube and Checkmarx.
  • Implement test-driven development (TDD) and behavior-driven development (BDD) methodologies.
  • Develop and document test strategies based on business requirements and employer testing standards.
  • Orchestrate release workflows and pipelines to enhance CI/CD automation using tools like Jenkins.
  • Continuously innovate and improve testing strategies to ensure high-quality software delivery.
Required

Skills & Experience:

  • 7+ years of experience in software testing, including at least 5 years in API testing.
    Strong hands-on experience with:
  • Selenium (for UI Test Automation)
  • Rest Assured (for API Test Automation)
  • Java/J2EE technologies
  • Microservices architecture
  • CI/CD expertise (Jenkins, Bamboo, etc.).
  • Experience working in Agile/Scrum environments with BDD/TDD.
  • Excellent troubleshooting and problem-solving skills for high-transaction production systems.
  • Strong communication and leadership skills to drive collaboration across teams.
  • Experience with cloud platforms (AWS, Azure, PCF) and containerization (Docker, Kubernetes) is a plus.
  • Familiarity with security and vulnerability scanning tools (Sonar Qube, Checkmarx).
  • Experience with performance testing tools (e.g., JMeter) is a plus.
Position Requirements
10+ Years work experience
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