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Principal Cyber Software Test Engineer

Job in Chantilly, Fairfax County, Virginia, 22021, USA
Listing for: Cornerstone Defense LLC
Full Time position
Listed on 2026-06-18
Job specializations:
  • IT/Tech
    Systems Analyst, IT Consultant, Cybersecurity, Systems Engineer
Salary/Wage Range or Industry Benchmark: 100000 - 125000 USD Yearly USD 100000.00 125000.00 YEAR
Job Description & How to Apply Below

Basic Qualifications for a Principal Cyber Software Test Engineer:

  • Candidate must currently have an active Secret security clearance or higher to be considered.
  • Bachelor's degree with 5 years of relevant experience, a Master’s degree with 3 years of relevant experience, a PhD with 1 year of relevant experience, or 9 years of relevant experience in lieu of a degree.
  • Experience with diverse software and/or hardware testing methods throughout the development lifecycle.
  • Demonstrated ability to organize, prioritize, and self-manage multiple project tasks.
  • Proficiency with computer hardware and software systems, and the ability to validate proper implementation and functionality between various systems and interfaces.
  • Experience translating requirements and user stories into functional test plans.
  • Ability to use strong analytical skills to identify, characterize and isolate issues, and troubleshoot to present options for correcting those issues.
  • Excellent written and verbal communication skills in order to write well-articulated test plans and facilitate product demonstrations.
  • Ability to articulate and document defects in a timely manner, and collaborate with the development team and management to prioritize bugs until resolution.
Basic Qualifications for a Sr. Principal Cyber Software Test Engineer:
  • Clearance:
    Candidate must currently have an active Secret security clearance or higher to be considered.
  • Bachelor's degree with 8 years of relevant experience, a Master’s degree with 6 years of relevant experience, a PhD with 4 years of relevant experience, or 12 years of relevant experience in lieu of a degree.
  • Experience with diverse software and/or hardware testing methods throughout the development lifecycle.
  • Demonstrated ability to organize, prioritize, and self-manage multiple project tasks.
  • Proficiency with computer hardware and software systems, and the ability to validate proper implementation and functionality between various systems and interfaces.
  • Experience translating requirements and user stories into functional test plans.
  • Ability to use strong analytical skills to identify, characterize and isolate issues, and troubleshoot to present options for correcting those issues.
  • Excellent written and verbal communication skills in order to write well-articulated test plans and facilitate product demonstrations.
  • Ability to articulate and document defects in a timely manner and collaborate with the development team and management to prioritize bugs until resolution.
Preferred Qualifications for both levels:
  • An active TS/SCI Clearance with Polygraph.
  • Proficiency with writing custom automation scripts using a programming language (e.g., Python, JavaScript, etc.).
  • Experience with testing mobile applications on Android devices.
  • Experience with agile management software (e.g., Microsoft Azure Dev Ops, Jira, etc.).
  • Experience with test automation to include design, development, and debugging of tests.
  • Experience with test automation tools (e.g., Smart Bear Test Complete) and frameworks.
  • Experience with installing virtual machines.
  • Familiarity with Agile Scrum methodologies.
  • Familiarity with computer security measures.
  • Proficiency with UNIX command lines.
  • Self-starter with the ability to pick up and learn new products with little supervision as well as provide leadership on assigned projects.
  • Ability to provide testing best practices to other team members.
  • Experience with providing test estimation to management and project teams.
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