Posted:
2/9/2026, 2:26:22 AM
Location(s):
San Diego, California, United States ⋅ California, United States
Experience Level(s):
Junior ⋅ Mid Level ⋅ Senior
Field(s):
Software Engineering
Workplace Type:
On-site
Leidos addresses some of the nation's toughest defense challenges through innovative signal processing and data analytics. Our San Diego-based team consists of highly skilled scientists and engineers focused on extracting maximum intelligence from complex datasets derived from diverse sensing modalities. We seek a talented Modeling and Simulation Engineer who thrives in algorithm research, development, and implementation. The ideal candidate is creative, efficient, collaborates well, and is passionate about bringing solutions from concept to delivery. Leidos is an employee-friendly company with a competitive benefit package, flexible working hours, and a collegial atmosphere.
Primary Responsibilities
On a day-to-day basis, responsible for:
Algorithm development,
Software design, and
Data analysis.
Modeling real world systems in simulation for SWIL/HWIL testing.
Basic Qualifications
BS degree in physics with 4-8 years of relevant experience, or Masters with 2-6 years of relevant experience, or Doctoral degree if less than 2 years of experience
Strong background in Aerospace, Math, and/or Physics
Strong knowledge of programming and modeling and simulation applications (Python, C++, RUST, etc.)
An ability to obtain and maintain a Clearance
The ideal candidate will have 3-5 years of experience, though candidates with 0-2 years of experience are welcome
Experience with C/C++ programming languages (object oriented).
Experience with collaborative development with other team members
US CItizenship with the ability to obtain Top Secret security clearance
Required on-site full-time work in San Diego, CA
Ideally knowledgeable in astrodynamics
An ability to obtain and maintain a TS/SCI Clearance
An advanced degree (M.S./Ph.D)
Experience developing and testing algorithms for processing real-world image or radar data
Experience with wave physics (RF, acoustic, optical)
subseamss
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.
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.
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.
Website: https://www.leidos.com/
Headquarter Location: Reston, Virginia, United States
Employee Count: 10001+
Year Founded: 1969
IPO Status: Public
Industries: Computer ⋅ Government ⋅ Information Services ⋅ Information Technology ⋅ National Security ⋅ Software