Sr. Test Engineer Security Clearance

Position: Sr. Test Engineer with Security Clearance
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- Description Leidos has a new and exciting opportunity for a Senior Test Engineer in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). 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 Description As a Test Engineer on this program, you will have the opportunity to design, develop, and execute automated tests to ensure the quality and reliability of software applications and services in a Continuous Integration / Continuous Delivery Pipeline within a commercial cloud environment. You will play a crucial role in the software development lifecycle, aiming to streamline testing processes, reduce defects, and accelerate software releases.

Primary Responsibilities:

* Participate in program Agile software development initiatives (standup, planning, increment planning) to support innovation and enhancement of custom applications through iteration/functionality testing within a commercial cloud environment.
* 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 Dev Ops 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:

* Experience in software quality assurance with a focus on automation testing.
* Experience with creation, authoring, execution and documentation of test cases/result sets for software products in an agile cadence
* Experience using automation frameworks and tools like Selenium or Katalon Studio
* Familiarity in writing efficient and scalable test scripts.
* Direct experience with software performance testing practices
* Experience working/testing within Commercial Cloud Platforms (ex: AWS) and Dev Ops tools, and working in a SAFe Agile and Dev Ops development environment
* Demonstrated ability to work within collaborative environment to execute test cases complimentary to development efforts
* BS degree with 8 or more years of prior relevant experience or Master’s with 6 or more years of prior relevant experience. Will consider experience in lieu of a degree
* Candidate must have an active TS/SCI with Polygraph

Preferred Qualifications:

* Hands-on experience with Katalon Studio and Katalon Runtime Engine
* Programming skills in languages such as Java or Python enabling the ability to write efficient and scalable test scripts.
* Experience with CI/CD tools (e.g., Jenkins, Git Hub) and their integration with automated tests.
* Direct experience with AWS environments CABARESTON 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 2, 2025 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…