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# S/W Q.A. Spec./App Tester - Expert

- **Company:** Cornerstone Defense
- **Location:** Herndon, VA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Agile Methodology, Software Applications, Automation of Tests, Unit Testing, Bash Shell, Data Validation, Linux, Eclipse (Software), Github, IntelliJ IDEA, Apache JMeter, Junit, PostgreSQL, Load Testing, NetBeans, Oracle (Applications), Mockito, Swagger, Selenium, SQL Databases, Postman, Cypress (Programming Language), Gitlab, Software Coding, Cucumber (Software), Selenium Webdriver, Software Version Control, Api Management, Legacy Systems, Katalon Studio, Jenkins
- **Published:** September 23, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9187870/sw-qa-specapp-tester-expert

## About the Role

Minimum of 11 Years of relevant experience or 8 years with a Bachelors Degree - this is a MANDATORY REQUIREMENT and is not optional.

*Experience with API testing through Swagger
*Experience with SQL queries for data validation (Oracle, Postgres)
*Expert in Selenium WebDriver as well as other automated testing technologies such as Katalon Studio and Cucumber
*Emphasis of experience must be in the area of writing automated code (Java) as opposed to simply click and record
*Must be able to evaluate developer assignments, independently understand requirements, and engineer tests to evaluate best path scenario as well as probe for possible failure conditions
*Must know to use an IDE to code (ex - IntelliJ, Eclipse, NetBeans)
*Experience with interacting in a Linux environment (ex - Bash scripting, VI)
*Expertise in writing test plans, cases, procedures, scripts, and scenarios
*Demonstrated history with manual and automated test processes
*Ability to work well in a constantly evolving work environment
*Ensure the QA and testing approach references all known vulnerabilities and best practices
*Conduct and report testing using a repeatable process based on industry best practices
*Maintain and update the test environment
*Must have development skills, as automated testing is a lot of writing code.

 * Solid hands-on experience testing experience with testing tools such as JMeter, Cypress, and /or Selenium.
Nice to have:

 * Experience testing complex systems with external integration points
 * Experience with unit test frameworks such as Junit, Mockito, Swagger, and Postman
 * Must work well in a group environment and collaborate with team members
 * Familiarity with Source code management and integration (ex - GitHub/GitLab, Jenkins)
 * Experience in an Agile environment
This position requires a TS/SCI with Polygraph on day one and is located in the Herndon area.

## Description

Opening for an Automated tester who will work as part of a small test team supporting multiple software applications in varying stages of deployment (from emerging technologies to legacy systems). This position requires knowledge of modern automated testing methodologies and technologies. The person in this role will be responsible for manual testing when the coding of an automated solution is impractical or not desirable. As the technology stack expands and grows, our team of testers may be required to work with the application developers to support performance/load testing to fully evaluate the application capabilities.


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