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​​Modeling & Simulation Engineer​

Leidos

​​Modeling & Simulation Engineer​

Leidos

San Diego, CA

·

On-site

·

Full-time

·

1w ago

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.

Original Posting:

February 9, 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 $87,100.00 - $157,450.00

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.

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About Leidos

Leidos

Leidos

Public

Provides scientific, engineering, systems integration, and technical services.

10,001+

Employees

Reston

Headquarters

Reviews

3.8

9 reviews

Work Life Balance

4.2

Compensation

3.8

Culture

4.1

Career

3.2

Management

4.0

72%

Recommend to a Friend

Pros

Great management and managers

Good work-life balance

Excellent culture and team environment

Cons

Limited promotion opportunities

Feeling underpaid at mid-levels

Red tape and bureaucracy

Salary Ranges

26 data points

Junior/L3

Junior/L3 · Energy Market Analyst

1 reports

$112,700

total / year

Base

$98,000

Stock

-

Bonus

-

$112,700

$112,700

Interview Experience

3 interviews

Difficulty

3.0

/ 5

Duration

14-28 weeks

Offer Rate

67%

Experience

Positive 67%

Neutral 0%

Negative 33%

Interview Process

1

Application Review

2

Recruiter Screen

3

Technical Phone Screen

4

Hiring Manager Interview

5

Team Interview

6

Offer

Common Questions

Technical Knowledge

Behavioral/STAR

Past Experience

Security Clearance

Government Contract Experience