Senior SDET / Test Automation Engineer

Cullerton Group has a new opportunity for an IT Software Engineer 5. The work will be done hybrid (Chicago, IL – onsite 2 days per week, with future full onsite expectation). This is a 12-month long-term position that can lead to permanent employment with our client. Compensation is up to $106/hr + full benefits (vision, dental, health insurance, 401k, and holiday pay).Job SummaryCullerton Group is seeking a Senior Software Engineer specializing in test automation to support large-scale enterprise systems. This role focuses on designing, developing, and maintaining automated testing frameworks and ensuring high-quality software delivery across complex platforms. The engineer will work closely with development, product, and QA teams to validate system performance, reliability, and integration. This position offers a mix of hands-on automation development, technical leadership, and cross-functional collaboration in a fast-paced environment.Key Responsibilities• Design, develop, and maintain automated test frameworks for API and system-level testing• Develop automation scripts using Java, JavaScript, and tools such as Cucumber, Karate, and JMeter• Lead test strategy development, including test planning, execution, and reporting• Collaborate with product owners and engineering teams to understand requirements and resolve issues• Mentor team members and promote best practices in automation, CI/CD, and quality engineeringRequired Qualifications• Bachelor’s degree in Computer Science, Software Engineering, or a related field• 10+ years of experience in software engineering or test automation roles• Strong experience with Java and BDD frameworks (Cucumber, JBehave, or similar)• 8+ years of experience designing and developing test automation frameworks• Experience testing REST APIs and performing system integration testing• Proficiency in SQL and working with relational databases• Experience with performance testing tools such as JMeter• Strong understanding of the full software development lifecycle and Agile methodologiesPreferred Qualifications• Experience with AWS cloud technologies and microservices architecture• Experience with CI/CD tools such as Jenkins or Git-based pipelines• Knowledge of Python or additional scripting languages• Experience with API gateways (e.g., Apigee)• Strong documentation and communication skills• Experience with performance, load, and end-to-end testing in complex systemsWhy This Role?This position offers an opportunity to contribute to meaningful engineering and design work that supports advanced software platforms within a global enterprise environment. You will work on high-impact systems, collaborate with experienced teams, and help drive quality and automation across enterprise applications. Cullerton Group provides a professional environment with growth potential and strong long-term career opportunities.