**Description** Leidos is seeking a driven and experienced Full Stack Software Engineer to support a high-stakes, mission-critical program. In this role, you'll help architect, develop, and integrate software solutions that shape national security and drive meaningful innovation. Join an Agile team where your expertise won’t just be valued—it will be vital. **💰** **Sign-on Bonus: $25,000** **Primary Responsibilities** + Design, develop, and enhance secure software applications and systems + Integrate new software into evolving operational environments + Analyze user needs to craft efficient and scalable solutions + Debug and optimize existing software for performance and reliability + Implement complex algorithms that meet rigorous technical standards + Create and maintain system documentation and technical reports + Collaborate in Agile Scrum teams to deliver rapid, high-quality releases **Basic Qualifications** + 14+ years of software engineering experience on comparable programs + Bachelor's degree in Computer Science or related discipline + TS/SCI clearance with Polygraph + Familiarity with front-end frameworks (React, Angular, or Vue) + Proven ability to lead technical efforts and ensure code quality **Preferred** + Proficient in Java for backend development + Strong knowledge of Git, Linux, Jira, Eclipse, and Confluence CONMD CSSRC **Original Posting:** July 23, 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 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. **Pay Range:** Pay Range $126,100.00 - $227,950.00 The Leidos pay range for this job level is a general guideline onlyand 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. REQNUMBER: R-00163185 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.