Simulation Software Integration Engineer - 29325
HII Mission Technologies· enterprise· Defense· Oct 5, 2026 · 22d ago
Nellis AFB, NV, Nevada, United States
In office
Full-time
Principal
$143K–$219K est.
5+ years exp
Job description
Requisition Number: 29325
Required Travel: 0 - 10%
Employment Type: Full Time/Salaried/Exempt
Anticipated Salary Range: $101,799.00 - $140,000.00
Security Clearance: Top Secret
Level of Experience: Mid
This opportunity resides with Global Security (GS). Mission Technologies’ Global Security (GS) group comprises live, virtual, constructive (LVC) solutions; fleet sustainment; nuclear and environmental; and Australia business.
As a trusted partner to our military customers, HII designs, develops and operates the largest LVC enterprise that prepares warfighters for cross-domain battle. With advanced technologies to enable mission readiness, HII understands that preparation requires full coordination—not readiness in piece-parts.
For more than 40 years, the U.S. Navy has entrusted HII to maintain and modernize the vast majority of its fleet. With a holistic approach to life-cycle maritime defense systems—from small watercraft to submarines, surface combatants and aircraft carriers—HII ensures a high state of readiness.
HII supports the Department of Energy’s national security mission through the management and operation of its sites, as well as the safe cleanup of legacy waste across the country. HII meets clients’ toughest nuclear and environmental challenges.
Leadership Mindset at HII – Mission Technologies
Leadership at HII is a mindset, not a title. Through our Leadership Capability Framework, we define how every employee grows, leads, and contributes—regardless of role. It sets the standard for how you can develop yourself and what you can expect from leaders across our organization. We look for candidates who want to grow in alignment with these capabilities:
• Know & Grow Your People – Commit to learning and supporting team success.
• Build Relationships – Communicate openly, collaborate well, and build trust.
• Take Ownership – Deliver on commitments and take pride in your work.
• Customer First – Focus on the mission and those we serve.
• Shape the Future – Bring ideas, curiosity, and continuous improvement.
• Act with Urgency – Take initiative and follow through with purpose.
These capabilities guide how all employees contribute to our shared success across Mission Technologies.
Summary
HII Mission Technologies Division is seeking a Simulation Software Integration Engineer to support Fighter‑In‑A‑Box (FIAB) capabilities for F‑22 and/or F‑35 synthetic environments. This role supports Modeling, Simulation, and Training (M&S) integration efforts at the Joint Integrated Test and Training Center – Nellis (JITTC‑N), located at Nellis AFB, NV, supporting the U.S. Air Force Warfare Center’s Joint Simulation Environment (JSE) team.
As part of an on‑site engineering team, you will help deliver high‑end Advanced Tactics, Training, and Test capability for Government personnel operating under USAFWC/ACC by supporting the development, refinement, and integration of FIAB software within the JSE architecture. This role is focused on software integration, troubleshooting, and enhancement of complex simulation systems, rather than general simulator operations.
Key Job Responsibilities
Provide on‑site support for the 31st Combat Training Squadron’s JSE training systems at Nellis AFB. As a member of the JSE Engineering Team, you will focus on the troubleshooting, configuration, optimization, and development of the F‑22 and/or F‑35 FIAB for advanced synthetic test and training environments within JSE at the JITTC‑N. Responsibilities include, but are not limited to:
• Support daily FIAB operations by monitoring system performance and ensuring stable execution within JSE.
• Troubleshoot FIAB issues by reviewing FIAB source code and/or JSE Platform Plugin (JPP) source code.
• Integrate FIAB mission‑system models, sensor models, software interfaces, and avionics behaviors into the JSE simulation environment.
• Develop enhancements, resolve defects, and optimize FIAB software performance within distributed or real‑time simulation architectures.
• Integrate FIAB capabilities with other JSE and non‑JSE platforms across synthetic training and test environments.
• Assist with accurately documenting, reporting, and tracking deficiencies related to FIAB and JPP components.
• Collaborate with engineers, operators, and Government SMEs to support reliable, high‑fidelity synthetic test and training capabilities.
What you will do
• 5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience.
• Experience in software development and software design.
• Experience integrating complex software systems or simulation components in distributed or real‑time environments.
• Ability to modify, debug, and troubleshoot C++ and/or Python source code within simulation frameworks.
• Experience working with software interfaces, middleware, plug‑ins, APIs, or data models used to connect simulation components.
• Proficiency working in a Linux command‑line environment.
• Strong communication, documentation, presentation, and interpersonal skills.
• Demonstrated strong work ethic and initiative to troubleshoot, address, and prevent problems on complex technical systems.
• Current or active Top Secret clearance within the last 24 months.
• Ability to obtain and maintain TS/SCI and SAP/SAR clearances.
Preferred Qualifications
• Software development experience with FIAB source code (F‑22 and/or F‑35) or JSE Platform Plugin code.
• Experience integrating simulation software with external systems, sensors, networks, mission‑systems models, or other platform components.
• Experience with Joint Simulation Environment (JSE), Live‑Virtual‑Constructive (LVC), or DoD synthetic training systems.
• Background with distributed simulation middleware such as DIS, HLA, or DDS.
• Experience modeling or integrating 5th‑generation fighter mission systems, avionics, sensor fusion, or LO synthetic behaviors.
• Current DoD TS/SCI clearance or active SAP/SAR accesses.
• Experience optimizing performance in high‑fidelity, real‑time synthetic environments.
Physical Requirements
Adequate visual acuity and manual dexterity for meeting the requirements Software Engineer family.
The listed salary range for this role is intended as a good faith estimate based on the role's location, expectations, and responsibilities. When extending an offer, HII's Mission Technologies division takes a variety of factors into consideration which include, but are not limited to, the role's function and a candidate's education or training, work experience, and key skills.
Meet HII’s Mission Technologies Division
Our team of more than 7,000 professionals worldwide delivers all-domain expertise and advanced technologies in service of mission partners across the globe. Mission Technologies is leading the next evolution of national defense – the data evolution - by accelerating a breadth of national security solutions for government and commercial customers. Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. Find the role that’s right for you. Apply today. We look forward to meeting you.
To learn more about Mission Technologies, click here for a short video: vimeo.com
HII is more than a job - it’s an opportunity to build a new future. We offer competitive benefits such as best-in-class medical, dental and vision plan choices; wellness resources; employee assistance programs; Savings Plan Options (401(k)); financial planning tools, life insurance; employee discounts; paid holidays and paid time off; tuition reimbursement; as well as early childhood and post-secondary education scholarships. Bonus/other non-recurrent compensation is occasionally offered for qualified positions, and if applicable to this role will be addressed by the recruiter at the screening phase of application.
Why HII
We build the world’s most powerful, survivable naval ships and defense technology solutions that safeguard our seas, sky, land, space and cyber. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.
Recognized as one of America’s top large company employers, we are a values and ethics driven organization that puts people’s safety and well-being first. Regardless of your role or where you serve, at HII, you’ll find a supportive and welcoming environment, competitive benefits, and valuable educational and training programs for continual career growth at every stage of your career.
Together we are working to ensure a future where everyone can be free and thrive.
All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, physical or mental disability, age, or veteran status or any other basis protected by federal, state, or local law.
Do You Need Assistance?
If you need a reasonable accommodation for any part of the employment process, please send an e-mail to buildyourcareer@hii-co.com and let us know the nature of your request and your contact information. Reasonable accommodations are considered on a case-by-case basis. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to from this email address. Additionally, you may also call 1-844-849-8463 for assistance. Press #3 for HII Mission Technologies.
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Benefits detected in the listing.
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401(K)
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