The Defense Sector at Leidos currently has an opening for a Software Engineer with a active Secret clearance to work remotely, but based out of our Tewksbury, MA office. This is an exciting opportunity to use your experience helping the C-sUAS Engineering and Integration mission. In this mission we integrate data from existing C-sUAS infrastructure, radars, and sensors at various locations/sites to aim at controlling the airspace from sUAS. Primary Responsibilities. Develop and maintain software for a robust C-sUAS software suite Design software to support system integration efforts Ensure any new code meets contractual cyber standards Collaborate with government customers to better understand program needs. Communicating issues with leadership Identify areas of improvement that can benefit the software process Basic Qualifications. Must possess and maintain active DoD Secret clearance or above to be considered for role. (US Citizenship required) Experience Working with multiple programming languages such as (C#, C++, Python, Java) Excellent written and verbal communication skills, a demonstrated ability to meet deadlines, and a strong problem-solving mindset Familiarity with the Atlassian suite, including Jira and Confluence Familiarity with Gitlab Familiarity with Docker and Linux based containerization Preferred Qualifications. Previous experience working with C-sUAS sensors and effectors Experience working on projects with a multitude of repositories Experience implementing agile methodologies Experience with cyber tools such as Fortify, Sonarqubue, Trivy, Dependency Tracker Experience with Go or JavaScript Experience using NATS messaging framework 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: June 4, 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 $69,550.00 - $125,725.00 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.