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# Software Test Engineer

- **Company:** Leidos, Inc.
- **Location:** Belleville, IL, United States
- **Experience:** Experienced
- **Salary:** $110,000 - $140,000
- **Contract:** Permanent contract
- **Skills:** Testing (Software), JIRA, Automation of Tests, Microsoft Azure, Bug Tracking Systems, Data Validation, Load Testing, Regression Testing, Simple Object Access Protocol (SOAP), SQL Databases, Software Testing Automation Framework, Test Case, Strategies of Testing, Test Scripts, Git, System-level Testing, Integration Tests, Information Technology, Api Management
- **Published:** November 11, 2026
- **Apply:** https://find.jobs/jobs-near-me/apply/ats-redirect/?id=3062370574-2

## About the Role

* Software testing
 * Test case design
 * Test automation frameworks
 * Functional and integration testing
 * Regression testing
 * Defect tracking tools (e.g., JIRA, Azure Dev
 * Ops)
 * SQL and data validation
 * API testing (e.g., REST, SOAP)
 * Performance and load testing
 * Version control (e.g., Git)

## Description

Leidos seeks a Mid-Level Test Engineer to ensure quality and reliability of mission-critical IT and software solutions. In this role, you will design and execute manual and automated test plans, develop test cases for functional, integration, and regression testing, and collaborate closely with developers and analysts to validate complex requirements. You will identify and track defects, contribute to test strategy, and support performance and security testing. At Leidos, you'll work in a mission-driven, collaborative environment with strong ethics, robust benefits, flexible work options, and opportunities for continuous learning and advancement., * Design and execute manual and automated test plans for complex IT systems

 * Develop test cases, scripts, and data for functional, integration, and regression testing
 * Collaborate with developers, analysts, and stakeholders to clarify requirements and acceptance criteria
 * Identify, document, and track defects through resolution using standard tools
 * Contribute to test strategy, coverage analysis, and risk-based testing approaches
 * Support performance, security, and system-level testing as needed
 * Participate in code and test reviews, providing feedback on testability and quality
 * Generate clear test reports and metrics for project and customer stakeholders