Modeling and Simulation Software Engineer

Leidos is seeking a Modeling and Simulation Software Engineer to support a multispectral few-on-few simulation environment in Beavercreek, Ohio. The position involves integrating an infrared threat simulation and contributing to tool development, software implementation, testing, and documentation in support of a government customer with an active Secret clearance.

Onsite Location

Beavercreek, OH (onsite)

Role Summary

The work will integrate an infrared threat simulation into a multispectral few-on-few simulation environment implemented in C++. The role includes contributions across design, implementation, testing, and documentation, supporting both developmental needs and government-facing delivery.

Key Responsibilities

• Perform integration tasks for an infrared threat simulation within a multispectral few-on-few C++ simulation environment
• Collaborate with a team of engineers and participate in team tasking
• Coordinate with government and contractor personnel
• Design and implement tools that support the broader multispectral simulation effort
• Test and evaluate implementations; provide feedback to the developmental team and team partners
• Develop, code, and test software, and prepare documentation requested by the government customer

Required Qualifications

• Bachelor’s degree in CS, CE, EE, or a related field with 4+ years of applicable experience, or an MS in the same fields with 2+ years of experience
• Experience with C++ and Linux
• Experience with modeling and simulation (M&S) techniques
• Excellent English-language written and verbal communication, with a strong emphasis on writing ability
• Strong people skills and interest in working with technical teams of engineers and scientists
• Ability to work independently and meet deadlines in a mixed government-contractor environment
• Must have a current and active Secret security clearance

Technologies

• C++
• Linux
• Python
• GPU compute
• HPC resources

Preferred Qualifications

• Experience with modeling and simulation, Python, GPU compute, HPC resources, EO/IR sensor phenomenology, and infrared threat systems
• Previous experience with department of defense software applications

Compensation

Pay Range: USD 87,100 - 157,450 per year

Benefits

• Health and Wellness programs
• Income Protection
• Paid Leave
• Retirement

Application Timing

Original posting date: November 2, 2026

U.S. positions: This requisition is reasonably anticipated to remain open for at least 3 days, with an anticipated close date of no earlier than 3 days after the original posting date.