Principal Test Engineer

About the role

Leidos has an exciting opportunity for a Principal Test Engineer in our Intel Security Sector's Analysis Solutions Business Area. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management.

At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!

Job Summary

As a Test Engineer on this program, you will have the opportunity to perform software development to implement scripts, evaluate test results, and feedback loops in a Continuous Integration Continuous Delivery Pipeline within a commercial cloud environment. Flexible cross-training to also provide systems engineering, software development, training, and security. Job duties are performed within a commercial cloud environment.

Responsibilities Include

• Participate in program Agile software development initiatives (standup, planning, increment planning) to support innovation and enhancement of custom applications through iteration/functionality testing
• Participate and collaborate with team members to assess StoryPoint/complexity efforts (using best practices) to ensure proper testing and delivery of functionality per User Story Acceptance Criteria
• Collaborate with team members (Scrum Master, Product Owner, Software Developers) to develop test approaches with emphasis on automation of recurring/regression test cases through selected toolsets
• Develop automated test cases using knowledge of custom Applications through designated GUI/COTS products (ex: Selenium and Katalon Studio)
• Leverage DevOps practices to ensure repeatability and Configuration Management of test cases/scripts are maintained and continuously improved
• Develop and document end-to-end functionality test case narratives using task management system (JIRA/Confluence) and support performance testing/evaluation activities using tools such as Jmeter

Basic Qualifications

• In-depth experience testing both back-end and front-end applications processes, scripting languages (ex: Python) to automate tasks, and test data/script development
• Knowledge of or direct experience with software performance testing practices
• Direct experience with creation, authoring, execution and documentation of test cases/result sets for software products in an agile cadence
• Significant experience working/testing within Commercial Cloud Platforms (ex: AWS) and DevOps tools, and working in a SAFe Agile and DevOps development environment
• Demonstrated ability to work within collaborative environment to execute test cases complimentary to development efforts
• BS degree with and 12+ years of prior relevant experience or Master’s 10+ years of prior relevant experience. Will consider experience in lieu of a degree
• Clearance Required: Must have an active TS/SCI with Polygraph

Preferred Qualifications

• Experience with administration of MS Windows Server or Linux environments (Lab or Personal development space)
• Experience reviewing output of CI jobs and capable of tracking test failures back to code changes that resulted in bugs
• Capable of review code check-ins to understand the impact of code changes on system functionality and potential applications bugs
• Direct experience with AWS environments

Additional information

At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you – apply today.

• CABARESTON
• #ASBA
• #HALO

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting: September 3, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range $131,300.00 - $237,350.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.