• Location: Chantilly, Virginia
  • Type: Contract
  • Job #3252

Title: Test Engineer
Location: Chantilly, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.


  • Collaborate with cross-functional teams to understand project requirements and develop comprehensive test plans and test cases.
  • Execute manual testing procedures to identify defects, validate functionality, and ensure compliance with specifications.
  • Design, develop, and maintain automated test scripts and frameworks to streamline testing processes and increase test coverage.
  • Conduct regression testing to ensure that software changes have not adversely affected existing functionality.
  • Perform exploratory testing to uncover potential issues and improve overall product quality.
  • Analyze test results and provide clear and concise reports on testing progress, defects, and overall product quality.
  • Work closely with developers to isolate, reproduce, and debug issues found during testing.
  • Continuously improve testing strategies, tools, and processes to enhance efficiency and effectiveness.


Required Skills Number of Years of Experience
Bachelor's degree in Computer Science, Engineering, or related field.  
4+ years of experience in software testing, with a focus on both manual and automated testing.  
Strong understanding of software testing principles, methodologies, and best practices.  
Proficiency in writing and executing manual test cases and test scenarios.  
Experience with test automation tools and frameworks such as Selenium or Win App  
Hands-on experience with programming/scripting languages such as Java, Node, or JavaScript.  
Familiarity with version control systems such as Git.  
Excellent analytical and problem-solving skills, with a keen attention to detail.  
Strong communication and collaboration skills, with the ability to work effectively in a team environment.  
Desired Skills Number of Years of Experience
Certification in software testing (e.g., ISTQB Certified Tester).  
Experience with continuous integration/continuous deployment (CI/CD) pipelines and tools such as Jenkins or Git CI/CD.  
Experience with cloud platforms such as AWS or Azure.  
Understanding of web technologies (HTML, Java, JavaScript) and web application architectures.  
Experience with Agile methodologies and tools such as Jira and Confluence.  
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