Principal Software Engineer with 25K sign on bonus

Leidos has a new and exciting opportunity for a Software Engineer (SWE) in our Intelligence Sector, Cyber & Analytics Business Area (CABA). Our team works in Security Engineering, Computer Network Operations, Mission Software, Analytical Methods, Signals Intelligence, and Cryptographic Key Management. Compensation: $154,050.00 - $278,475.00. Sign‑on bonus $25,000. Eligible for competitive benefits including PTO, 11 paid holidays, 401K with 6% match, flexible schedules, stock purchase, technical upskilling, education support, parental leave. Primary Responsibilities Collaborate with developers to design, implement, and validate features in React and related front‑end libraries. Support integration of UI components with back‑end services written in Java and/or C++. Participate in Agile development teams, contributing to sprint planning, code reviews, and daily stand‑ups. Document test cases, results, and processes for quality assurance. Explore and apply other front‑end automation tools to improve efficiency. Basic Qualifications Bachelor's degree in Computer Science or related discipline, or four years experience in place of degree. Masters may count toward experience. 20 years of relevant experience. Active Top Secret/SCI clearance with polygraph. Preferred Qualifications Experience with front‑end development and/or UI testing. Familiarity with React, Java, and/or C++. Ability to write test scripts in Python; Robot Framework experience preferred. Hands‑on experience with Robot Framework for UI automation. Exposure to other front‑end automation tools such as Selenium or Cypress. Knowledge of modern web technologies: JavaScript, TypeScript, HTML, CSS. Experience working in Agile environments. Pay Range $154,050.00 - $278,475.00. EEO Statement All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider qualified applicants with criminal histories consistent with relevant laws. #J-18808-Ljbffr Leidos