HWIL Simulation Eng for Flight Systems

Leidos LLC; Huntsville (AL); On-site; USD 108,000 - 195,000; Full time

Benefits offered by this job

Competitive compensation

Health and Wellness programs

Income Protection

Paid Leave and Retirement

Job summary

Leidos in Huntsville, AL seeks a Hardware in the Loop Simulation Engineer to lead HWIL infrastructure and expand flight system programs, including Small Glide Munition and Small Cruise Missile. The role requires deep experience with 6-DOF simulations and HWIL testing.

You will coordinate with leadership, integrate new components, and develop regression tests for HWIL verification while supporting flight test planning and mission rehearsals. A security clearance is required.

Qualifications

• Bachelors degree in engineering with 8-12 years of prior relevant experience or Masters with 6-10 years of prior relevant experience.
• Knowledge and experience with 6-DOF simulations of aerospace vehicles.
• Experience with hardware-in-the-loop simulation design and testing for aerospace vehicles.
• Proficiency developing test plans and test reports for HWIL simulations.
• Candidate must be a resident of the North Alabama area or willing to relocate to the Huntsville - North Alabama, AL area.
• Ability to obtain a Secret clearance.

Responsibilities

• Manage the hardware-in-the-loop simulation infrastructure for multiple flight system developmental programs, including Small Glide Munition and Small Cruise Missile.
• Detailed understanding of the flight vehicle capabilities and requirements including how to test these in the HWIL environment.
• Coordinate with program leadership and subsystem lead engineers on integrating and testing new electronic components, flight software and 6-DOF simulation updates.
• Develop test cases for regression testing and V&V activities, including documentation of planned tests, scheduling test activities, recording and documenting test results, and communicating results to stakeholders, including identifying deficiencies that require attention.
• Support flight test planning and preparation through HWIL testing of mission plans in nominal and abnormal conditions, and setup to support mission rehearsals.
• Identify deficiencies in the HWIL architecture and design updates or improvements to address.
• Participate in the initial standing up of HWIL infrastructure to support new developmental programs through selecting components (such as real-time computers and GPS signal generators), working with vendors to provide pricing and coordinating purchasing of the components.

Skills

6-DOF simulations

HWIL simulation design

Test plans & reports

Education

Bachelor's degree in engineering

Master's degree in engineering

Tools

C++ programming

Job description

Position Overview

Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainable. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. Your greatest work is ahead! Leidos’ Defense Systems Kinetic Effects Business Area is seeking a Hardware in the Loop Simulation Engineer to join our team in Huntsville, AL to work on expanding programs in the area of flight systems. This includes programs such as US SOCOM’s GBU 69/B Small Glide Munition, AGM-190/A Small Cruise Missile, multiple hypersonic missile development programs, DARPA’s Gremlins program and other rapid development efforts.

Primary Responsibilities

• Manage the hardware-in-the-loop simulation infrastructure for multiple flight system developmental programs, including Small Glide Munition and Small Cruise Missile.
• Detailed understanding of the flight vehicle capabilities and requirements including how to test these in the HWIL environment.
• Coordinate with program leadership and subsystem lead engineers on integrating and testing new electronic components, flight software and 6-DOF simulation updates.
• Develop test cases for regression testing and V&V activities, including documentation of planned tests, scheduling test activities, recording and documenting test results, and communicating results to stakeholders, including identifying deficiencies that require attention.
• Support flight test planning and preparation through HWIL testing of mission plans in nominal and abnormal conditions, and setup to support mission rehearsals.
• Identify deficiencies in the HWIL architecture and design updates or improvements to address.
• Participate in the initial standing up of HWIL infrastructure to support new developmental programs through selecting components (such as real-time computers and GPS signal generators), working with vendors to provide pricing and coordinating purchasing of the components.

Basic Qualifications

• Bachelors degree in engineering with 8-12 years of prior relevant experience or Masters with 6-10 years of prior relevant experience.
• Knowledge and experience with 6-DOF simulations of aerospace vehicles.
• Experience with hardware-in-the-loop simulation design and testing for aerospace vehicles.
• Proficiency developing test plans and test reports for HWIL simulations.
• Candidate must be a resident of the North Alabama area or willing to relocate to the Huntsville - North Alabama, AL area.
• Ability to obtain a Secret clearance.

Preferred Qualifications

• Familiarity and experience with C++ programming.
• Familiarity and experience with Department of War munitions development and employment.

Posting Date

Original Posting: August 25, 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: $107,900.00 - $195,050.00. 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.

Benefits

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

Pay and Benefits Overview

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 here.

Security and Contact Guidance

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

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.

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 $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.