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Senior Test Automation Engineer

3Core Systems

Chicago, IL · Posted November 2, 2026

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Skills this job asks for

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  • Python
  • Agile
  • AWS
  • SQL
  • Lean

About the job

Job Title: Senior Test Automation Engineer Location: Chicago, IL 60661 Duration: 12 months contract Interview process: Round 1: Virtual & Round 2: Onsite interview in Chicago Office (Non - negotiable) Work Environment: Worker will need to come into office 3–5x a week; A full return to office (5 days in office) will eventually happen, so candidates need to make sure they are good with that. Must haves: 1. 8–10 years of overall experience in software testing/SDET roles. 2. Strong hands-on Java programming experience. 3. Proven experience designing and developing automation frameworks using Java. 4. Strong REST API testing and backend testing experience. 5. Experience with UI automation and functional testing. 6. Good understanding of BDD frameworks and Cucumber. 7. Karate or REST Assured experience. 8. Ability to independently develop test strategies, test plans, and automation solutions. 9. Experience taking ownership of features from testing strategy through execution and maintenance. 10. Experience mentoring junior team members and conducting PR reviews. 11. Willingness to attend the second interview onsite in Chicago. Typical Task Breakdown: · Develop test automation code for Continuous Integration (CI), Continuous Delivery (CD), of systems, infrastructure, and test framework. · Plan, design, develop, and maintain API test automation framework that facilitates automation scripting, execution, and analysis of results. · Provide technical leadership and mentoring for test engineers on multiple applications/projects onshore and offshore; train and mentor project team members to create, execute, analyze, and maintain automated regression suites. · Coordinate with product owner to resolve open issues/enhancements/upgrades and understand the use of a specific functionality as needed. · Develop automated functional scripts using tools such as Java, Karate, JMeter. · Perform exploratory and manual testing of the product suite as appropriate. · Provide expertise in testing methodologies, best practices, and standards. CANDIDATE REQUIREMENTS: Education & Experience Required: • Years of experience: 8–10 yrs experience. • Bachelor’s and Master’s degree and 8+ years of experience. Required Technical Skills: Required: • Strong design and development skills in two or more of the following technologies and tools: Java (3–5 years), Cucumber (3–5 years), JBehave or other BDD testing frameworks. • At least 8 years of test automation framework design. • Strong experience in testing Webservices (REST APIs) (3+5 years). • Proven experience developing test scripts, test cases, and test data. • The ability to write queries in SQL or other relational databases. • 3+ years of experience in developing scenario-based performance testing using JMeter. • Experience testing full stack and integration testing with 3rd parties. • End-to-end system integration testing experience for software platforms. Desired: • Hands on experience with Python. • Development experience in AWS Cloud technology. • Experience in TDD, continuous integration, code review practice is strongly desired. • Experience with Apigee or other API gateways is a plus. • Experience with DevOps concepts and tools (e.g., CI/CD, Jenkins, Git). • At least 2 years working on an Agile team with a solid understanding of Agile/Lean practices. • Understanding of a micro service Architecture. • Experience load and performance testing. • Strong documentation skills. Soft Skills: • Ability to adapt quickly to a complex environment. • Pro-active, flexible and creative. • Very strong communication skills and the ability to collaborate with developers and business users.