Full-Stack Developer; SWE

Description

Leidos has a new and exciting opportunity for a Senior Full-Stack Developer 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!

Our LOE program provides our customer's Operations organization with the best possible solutions for their mission needs. We achieve this through rapid prototyping, new development, and advanced technology research. From leading-edge visualizations to analytic development, we're always pushing the boundaries to find new and better data sources and tradecraft to answer intelligence questions. With a focus on collaboration and a fast-paced environment, our prototype development program is the ideal place to grow your skills and make a real impact.

Seeking a motivated Senior Full-Stack Developer to support the Corporate Discovery Services mission. Developers will work closely with mission stakeholders to capture requirements and create innovative analytics and deploy solutions to customer supported tools to automate and enable data and metadata analysis.

• Mission Focus
  :
  Collaborate closely with customers to deliver a software solution to capture holistic information about analytic dependencies, performance and governance status; and develop a software solution that will provide means to federate, join, and aggregate information across disparate data sources in a policy compliant manner.
• Technical Proficiency
  :
  Creatively leverage disparate data to fill knowledge gaps in user activities, collection efforts, and technology discovery to include creating API’s and business intelligence analytics.
• Qualifications
  :
  Bachelor’s degree in computer science or related technical field plus a minimum of eight (8) years of relevant experience or equivalent. Proficiency with object-oriented language (Python and Java) and experience with Jupyter Notebooks, GHOST MACHINE, and Query Time Analytics.
• Security Clearance Requirement
  :
  Candidates must possess an active TS/SCI with Polygraph to be considered for this role.
• Desirable Skills
  :
  Knowledge of Tableau, Atlassian, and customer corporate tools and data repositories.

$ - $. 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 responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement, or other law.

January 20, 2026 – For U.S. Positions:
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.

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 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

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.