Junior Simulation Engineer

Job Description

Description

​​​The Undersea Systems Division (USD) at Leidos currently has an opening for an entry level Simulation Engineer to work in our San Diego, CA office. The USD operates at the leading edge of technology by designing, demonstrating, and deploying solutions to solve complex remote sensing problems for our Department of Defense customers.​ This is an exciting opportunity to contribute to system development and to gain experience for an individual with interest in maritime remote sensing, physics, sensors, system prototyping, algorithm and software development, statistics, machine learning, and artificial intelligence. Our focus is to develop capabilities and deployable prototypes and transition those to our Defense business segment.

​ Primary Responsibilities.

​The candidate shall perform :

​Design, develop, evaluate, validate, verify, analyze multi-domain system of systems simulations.

​Design, build, and maintain efficient, reusable, and reliable codes and models

​Collaborate with teams of engineers and developers, participating in regular code reviews

​Perform integration testing as well as collaborating with other internal teams

​Communicate with project customers or end users to fully understand, plan, and implement feedback and feature requests

​ Basic Qualifications.

​US Citizenship is required. Ability to obtain a TS clearance required.

​Bachelor’s Degree and 0-1+ years of prior relevant experience. May possess a Masters or Doctorate in a technical domain

​Must have a degree in Physics, Aerospace, or a related field

​Experience with system of systems modeling and simulation

​ Preferred Qualifications.

​Working knowledge of MATLAB, C / C++, Python

​Knowledge of Scrum / Agile development framework.

​Experience with implementing and maintaining unit testing.

​Proficiency with Git or comparable version control system.

​Strong math and numerical analysis background

​ Knowledgeable / background  in astrodynamics

​Experience in GNC (Guidance, Navigation, and Control) algorithms and theory.

​Knowledge of detection, tracking, and discrimination algorithms

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 $57,850.00 - $104,575.00

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

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 $16.7 billion for the fiscal year ended January 3, 2025. 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 at www.leidos.com / careers / pay -benefits.

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Commitment to Non-Discrimination

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.