Senior Software Engineer - 25k Sign on Bonus

Description Leidos has a new and exciting opportunity for a Senior Software 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 This position is eligible for a sign on bonus of ? $25,000. Leidos is seeking a driven and experienced Software Engineer to support a highu2011stakes, missionu2011critical program . In this role, youu2019ll architect, develop, and integrate advanced AI/ML solutions that shape national security and drive meaningful innovation. Join an Agile team where your expertise wonu2019t just be valuedu2014it will be vital. Primary Responsibilities + Design, develop, integrate and enhance secure AI/ML applications and systems in support of evolving operational environments + Implement and optimize complex algorithms, including deep learning models + Debug and optimize software for performance and reliability + Collaborate in Agile Scrum teams to deliver rapid, highu2011quality releases + Create and maintain system documentation and technical reports Basic Qualifications + Bacheloru2019s degree in Computer Science or related discipline (or 4 additional years of experience in lieu of degree) + 14+ years of software engineering experience supporting programs of similar type and scope + Proficiency in Python and modern programming languages + Clearance Requirement: Active TS/SCI clearance with Polygraph Desired Qualifications + AWS experience experience implementing productionu2011scale AI/ML systems + Experience with Kubernetes, Docker, and cloud infrastructure management + Knowledge of AI/ML frameworks (TensorFlow, PyTorch, Hugging Face) + Familiarity with generative AI platforms (e.g., ChatGPT, Gemini, Grok) CONMD CSSRC Come break things (in a good way). Then build them smarter. We're the tech company everyone calls when things get weird. We donu2019t wear capes (theyu2019re a safety hazard), but we do solve high-stakes problems with code, caffeine, and a healthy disregard for u201chow itu2019s always been done.u201d Original Posting: December 17, 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 $131,300.00 - $237,350.00 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. About Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit . Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at . Securing Your Data Beware of fake employment opportunities using Leidosu2019 name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the automated system u2013 never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at . If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission (. Commitment to Non-Discrimination 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 for employment qualified applicants with criminal histories consistent with relevant laws. REQNUMBER: R-00172359All 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.

Created: 2025-12-19