Senior Data Scientist

Leidos Holding • $131K — $237K *
Alexandria, VA 22304In-Person
Information Technology
11 - 15 years of experience
Today
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Job Overview by Ladders

Qualifications

  • Bachelor's, Master's, or equivalent degree in a quantitative field; relevant experience can substitute for education.
  • 12+ years in data science or analytics, developing AI/ML solutions (10+ years with Master's).
  • Active Top Secret clearance, eligible for TS/SCI with Polygraph.
  • Proficient in Python and at least one other scripting language.
  • Experience collaborating with hybrid teams to create user-friendly analytical platforms.
  • Proven problem-solver with a focus on mission-oriented outcomes.
  • Familiar with version control (git, svn, JIRA) and deployment technologies (Docker, Kubernetes).

Responsibilities

  • Lead design, development, and deployment of advanced AI/ML solutions for critical applications.
  • Collaborate with multidisciplinary teams to solve complex challenges and deliver innovative algorithms.
  • Apply statistical analysis, predictive analytics, graph analytics, and explainable AI techniques.
  • Work with diverse data types and leverage tools like Python, PyTorch, and geospatial analytics.
  • Contribute to integration of AI, DevSecOps, data engineering, and cybersecurity in a fast-paced environment.
  • Ensure production-readiness of analytical platforms with focus on user experience.

Benefits

  • Flexible work arrangements, including remote and on-site options in the National Capital Region.
Full Job Description
As a Senior Data Scientist, you will:
  • Lead the design, development, and deployment of advanced analytics and AI/ML solutions for mission-critical applications.
  • Collaborate with multidisciplinary teams of analysts, engineers, and developers to solve complex challenges and deliver innovative, production-ready algorithms and platforms.
  • Apply cutting-edge techniques in statistical analysis, predictive analytics, entity resolution, graph analytics, explainable AI, and operational analytics.
  • Work with diverse data types (structured, unstructured, open source, digital media) and leverage modern tools such as Python, PyTorch, Scikit-learn, LLM frameworks, and geospatial analytics platforms.
  • Contribute to the integration of AI, DevSecOps, data engineering, platform engineering, cybersecurity, and observability in a fast-paced, engineering-centric environment.
  • Enjoy flexible work arrangements, including remote and on-site work in the National Capital Region (Rockville, MD and/or Alexandria, VA).


What You Bring:
  • Bachelor's, Master's, or equivalent graduate degree in a quantitative or analytical field (Computer Science, Mathematics, Statistics, Engineering, Physics, Computational Social Science, etc.). Relevant experience may be substituted for a degree.
  • 12+ years of experience in data science, analytics, or quantitative intelligence analysis, developing analytics and AI/ML solutions (10+ years with a Master's).
  • Active Top Secret clearance and eligibility for TS/SCI with Polygraph.
  • Proficiency in Python and at least one other scripting language.
  • Demonstrated experience collaborating with hybrid teams to research, build, and deploy complex, user-friendly analytical platforms.
  • Track record of creative problem solving, active learning, and mission-focused outcomes.
  • Familiarity with version control tools (git, svn, JIRA) and deployment technologies (Docker, Kubernetes, OpenShift).


Preferred Qualifications:
  • Experience supporting military or intelligence community customers.
  • Expertise with knowledge graphs (neo4j, graph ML), predictive algorithms, image classifiers, object detectors, information retrieval, SQL, Elastic Stack.
  • Experience deploying data science applications (e.g., Streamlit) and working with distributed systems (Hadoop, Ray, Spark).
  • Familiarity with Azure/C2S, hardware platforms (CPUs, GPUs, FPGAs), and advanced analytical methodologies (social network analysis, supply chain analysis, NLP, classification algorithms, image processing).
  • Experience with Large Language Models (LLMs), Multimodal LLMs, Langchain, vLLM, llama.cpp.


Original Posting:
June 16, 2026

Pay Range:
Pay Range $131,300.00 - $237,350.00

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.

About Leidos Holding

Leidos Holding Careers

Joining Leidos Holding presents an unparalleled opportunity to advance one's career with a leader in innovation and technology. The company offers a plethora of job opportunities aimed at fostering professional growth and development in a diverse and inclusive environment.

Explore Career Opportunities

Leidos Holding is actively seeking skilled professionals who are passionate about leveraging their expertise to drive innovation and leadership in their fields. With a variety of open positions, Leidos Holding provides a platform for individuals to challenge themselves in a dynamic work environment.

Innovation and Professional Growth

At Leidos Holding, innovation is at the core of everything they do. Employees are encouraged to think creatively and push boundaries. The company supports this drive for innovation through comprehensive professional development and diversity training programs that are designed to enhance skills and foster leadership.

Commitment to Diversity and Inclusion

Leidos Holding is committed to creating a workplace where diversity is not only recognized but celebrated. With a culture that values and promotes diversity, Leidos Holding ensures that all team members have the opportunity to contribute, learn, and grow.

Internship Programs

For those starting their career, Leidos Holding offers internship programs that provide a robust foundation in the industry. Internships are a great way to develop essential skills, gain valuable work experience, and build professional networks.

Benefits and Culture

Employees at Leidos Holding enjoy a range of benefits designed to support their professional and personal lives. The company culture is built on a foundation of respect and integrity, providing a supportive and collaborative environment where every team member is valued.

Join the Team

Leidos Holding is hiring! Explore job opportunities that match your skills and interests. Leidos Holding looks for driven, curious, and innovative individuals to join their team. Positions are available across various disciplines and experience levels.

Stay Connected

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Prepare for Your Interview

To prepare for an interview at Leidos Holding, candidates should familiarize themselves with the company's missions and values, update their resumes, and be ready to discuss how their background and skills align with the position they are applying for.

Networking and Career Advancement

Leidos Holding encourages its employees to engage in networking within the company to discover new opportunities for career advancement. The leadership team at Leidos Holding is dedicated to supporting employees in their career paths with ample opportunities for networking and growth.

Explore Leidos Holding Jobs and Careers

Discover the exciting career opportunities at Leidos Holding today. With a commitment to employee growth, innovation, and diversity, Leidos Holding is the perfect place to advance your career. Check out the latest job listings and find your perfect fit at Leidos Holding.

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* Ladders Estimates

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