Senior Test Automation Engineer: API & UI, Onsite Chicago

3Core Systems, Inc; Chicago (IL); On-site; USD 130,000 - 170,000; Full time

Job summary

3Core Systems, Inc. in Chicago, IL is seeking a Senior Test Automation Engineer with 8–10 years of software testing and SDET experience. The role emphasizes Java-based automation, REST API and backend testing, and strong UI automation capabilities.

The position requires hands-on design and development of automation frameworks, mentorship of junior engineers, and ownership of testing strategy through execution. Onsite interviews in Chicago are required; occasional travel may be needed.

Qualifications

• 8–10 years of software testing/SDET experience.
• Strong hands-on Java programming experience.
• Experience designing and developing automation frameworks using Java.
• Strong REST API testing and backend testing experience.
• UI automation and functional testing.
• Knowledge of BDD frameworks and Cucumber.
• Experience with Karate or REST Assured.
• Ability to develop test strategies, test plans, and automation solutions.
• Experience owning features from testing strategy through execution.
• Mentoring junior team members and conducting PR reviews.
• Willingness to attend the second interview onsite in Chicago.

Responsibilities

• Develop test automation code for CI/CD pipelines and automation of systems, infrastructure, and test framework.
• Plan, design, develop, and maintain API test automation framework that facilitates scripting, execution, and analysis of results.
• Provide technical leadership and mentoring for test engineers on multiple applications/projects; train and mentor project team members.
• Coordinate with product owner to resolve issues and understand functionality needs.
• Develop automated functional scripts using Java, Karate, JMeter.
• Perform exploratory and manual testing of the product suite as appropriate.
• Provide expertise in testing methodologies, best practices, and standards.

Skills

Java

REST API testing

BDD frameworks

Cucumber

JMeter

SQL

Python

AWS Cloud

CI/CD

Git

Jenkins

Agile

Microservices

Education

Bachelor's degree

Master's degree

Tools

JBehave

Apigee

Jenkins

Git

JMeter

Job description

3Core Systems, Inc. in Chicago, IL is seeking a Senior Test Automation Engineer with 8–10 years of software testing and SDET experience. The role emphasizes Java-based automation, REST API and backend testing, and strong UI automation capabilities.

The position requires hands-on design and development of automation frameworks, mentorship of junior engineers, and ownership of testing strategy through execution. Onsite interviews in Chicago are required; occasional travel may be needed.