Leidos tackles the most challenging national defense problems using advanced signal processing and data analytics. At our San Diego office, we have a dedicated and experienced team of scientists and engineers devoted to squeezing the last bit of information from every data set. We are currently seeking data scientists to join our leading-edge research and engineering group.
In this role, you will collaborate with multidisciplinary team members focused on Physics (Hydrodynamics, Acoustics, RF and EO/IR propagation, among other areas) and Machine Learning to design, implement, and deliver cutting edge machine Signal Processing solutions to complex problems of national importance.
This position offers you the opportunity to grow and develop your skills in collaboration with our team. We hire people with curiosity and passion about science, technology, engineering, and math and who want to take that passion and turn it into reality.
Primary Responsibilities
Identify, prototype, and deploy appropriate (off-the-shelf, fine tuning, or custom) machine learning solutions utilizing state-of-the-art methods and in-depth data analysis.
Implement advanced statistical concepts, algorithms and techniques to extract, consolidate, and analyze unstructured, classified “big data” sources to generate actionable insights.
Collaborate with a team of other applied scientists, engineers, researchers & program managers to research and develop machine learning solutions to novel problems.
Engage in continuous learning and development, staying current with the latest advances in AI/ML and data science to ensure fit-for-purpose and impactful approaches.
Basic Qualifications
Bachelor's degree with 4+ years of prior relevant experience or Master’s degree with 2+ years of relevant experience.
Strong understanding of machine learning theory, concepts, and algorithms
Proficient in modern data exploration techniques and tools
Experience developing and implementing machine learned solutions
Familiarization with modern AI/ML algorithms and libraries
Fluency in C/C++, Python
Strong written and verbal communication skills
Required on-site full-time work in San Diego, CA
Currently holds an active US Government Top Secret security clearance
Preferred Qualifications
Experience performing research to develop data science solutions
Experience implementing and applying advanced physical and mathematical concepts in software applications
Experience with active or passive sensor data and relevant signal processing techniques
Experience with Large Language Model (LLM) development and deployment
Familiarization with Fortran or Matlab
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:December 11, 2025For 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.
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.
Top Skills
What We Do
We Are Leidos
For 50 years we have been tackling some of the biggest problems that face our nation and our world.
OUR MISSION
Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020.
Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.
Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.
Your most important work is ahead.
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