Sr. Data Scientist

Leidos has a new and exciting opportunity for a Sr. Data Scientist 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!

Job Summary: 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. Click here to learn more about how this program

“Delivers Mission Success!” Seeking a motivated AI/ML prototype engineer to

support the exciting Corporate Discovery Services mission. Developers will work

closely with mission stakeholders to capture requirements and create innovative

prototypes and deploy solutions to evaluate and tune machine learning models’

ability to integrate, reference, make inferences and consolidate data into a

holistic view. Job Responsibilities/

Qualifications

• Mission Focus: Collaborate
• closely with customers to enable acceleration to evaluate and tune machine
• learning models’ ability to integrate, reference, make inferences and
• consolidate data into a holistic view. Technical Proficiency: Creatively write
• and evolve prototype techniques leveraging diverse architecture and methods.
• Provide database administration, dataflow engineering, data wrangling, and model
• development.

Qualifications

• Bachelor’s degree in computer science or related
• technical field plus a minimum of eight (8) plus years of relevant experience or
• equivalent. Proficiency with, but not limited to, Python (i.e. SciKit-learn,
• TensorFlow, PyTorch), R, GIT and experience with Jupyter Notebooks. Ability to
• provide database administration for relational databases and TensorFlow.
• Security Clearance Requirement: Candidates must possess an active TS/SCI with
• Polygraph to be considered for this role. Desirable Skills: Proficiency in
• augmenting, providing context, and/or fine-tuning large language models for
• generative tasks using approaches such as but not limited to, retrieval
• augmented generation (RAG) and model context protocol (MCP). At Leidos, the
• opportunities are boundless. We challenge our staff with interesting assignments
• that allow them to thrive professionally and personally. For us, helping you
• grow your career is good business. We look forward to learning more about you –
• apply today! Careers.leidos.com conmd 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:
• February 11, 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
• $107,900.00 - $195,050.00 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. 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
• $17.2 billion for the fiscal year ended January 2, 2026. For more information,
• visit www.Leidos.com. 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 here. Securing Your Data Leidos
• will never ask you to provide payment-related information at any part of the
• employment application process. And Leidos will communicate with you only
• through emails that are sent from a Leidos.com email address. If you receive an
• email purporting to be from Leidos that asks for payment-related information or
• any other personal information, please report the email to
• [email protected]. Commitment and Diversity 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.