Software Test Engineer at Leidos in San Diego, CA

Software Test Engineer Location: San Diego, CA Leidos has a new and exciting opportunity for a Sr. RMF Security 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! The Software Test Engineer will join an agile development team building a mobile‑focused user application. This role is responsible for ensuring product quality through both manual and automated testing of the user interface and backend components. The engineer will proactively support all testing activities, collaborate with System Engineers, Developers, and fellow Testers, and contribute to accurate, well‑written test documentation. Primary Responsibilities: Author and execute manual and automated test cases to ensure product requirements are met. Author and maintain tools, techniques, and practices for assuring the testing of the product. Participate in agile planning events, analysis and design events, and reviews Ensure that quality checks and acceptance criteria are satisfied before code merges can occur. Ensure complete and timely reporting on bugs and test results. Identify, analyze, and document problems with program function, output, online screen, or content. Participate in product design reviews to provide input on functional requirements, product designs,    schedules, or potential problems. Write testing documentation and help finalize all system and software documentation CDRLs for the program. Familiarity working on programs using the Agile Scrum methodology Familiarity working with SKLs and ECUs Required Qualifications: Position requires US citizenship and an active Secret DoD security clearance Bachelor’s Degree in Systems Engineering, Computer Science, or related field and 4-8 years of software development testing experience. Will consider experience in lieu of a degree. At least 5 years of experience in software testing and/or software development. Experience with a scripting language:  Python, JavaScript, and related others. Experience with implementing regression testing for software. Experience performing “illity” testing, especially performance testing. Familiarity and/or experience using automated test tools on software projects. The ability to communicate effectively with both Product Owners and software developers. Knowledge of Agile Development methodologies. DoD 8570 approved security certification (i.e., Security +) (Will be required 90 days after hire). Preferred (some subset of the following): Ability to identify efficiencies and process improvements between the development and testing disciplines. Experience with a version control system (e.g., Git, SVN). Experience with an issue/problem tracking system (e.g., VersionOne, Jira). Experience with continuous integration environments (e.g., Jenkins). Desired Skills: Experience using Squish for Qt. Familiarity with Crypto and COMSEC 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: May 11, 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: Pay Range $73,450.00 - $132,775.00 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.