Full-Time

Modeling and Simulation Engineer 6-DOF

Deadline 9/4/27
Integration Innovation (i3)

Integration Innovation (i3)

501-1,000 employees

Defense contractor delivering missile, cyber engineering

No salary listed

No H1B Sponsorship

Huntsville, AL, USA

In Person

US Top Secret Clearance Required

Bachelor's, Master's

Category
Software Engineering
Required Skills
Bash
Software Testing
Data Visualization
Microsoft Windows
MATLAB
C/C++
Linux/Unix
Data Analysis

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Requirements
  • A Bachelor of Science or Master of Science degree in Engineering and/or Computer Sciences is required; Mechanical or Aerospace Engineering is preferred.
  • An active Secret security clearance and the ability to maintain the clearance are required.
  • A minimum of 3 years of engineering-related programming and system performance analysis experience is required.
  • Three to ten years of programming experience for engineering analysis is required.
  • Strong experience with C and/or C++ development is required.
  • General knowledge of missile dynamics and subsystem functions is required.
  • General knowledge of physics-based simulation and numerical methods is required.
  • Working knowledge of command-line operations, compiling from the command line, and remote connectivity is required.
Responsibilities
  • Perform software development and system study activities related to missile simulation data processing, analysis, and visualization.
  • Understand missile system modeling and six-degree-of-freedom execution, perform independent studies of missile and rocket performance, and present study concepts and results to project engineers and technical working groups.
  • Develop testable requirements based on customer input for DoW environment training and simulation software.
  • Test and document software applications during development.
  • Perform demonstrations and interface with customers to ensure the product meets end-customer goals.
  • Present engineering concepts to internal teammates and customers.
Desired Qualifications
  • Experience writing or contributing to technical reports and presentations.
  • Experience with Bash scripting and/or other shell languages.
  • Experience using visualization tools for scientific data, including SIMDIS, MATLAB, or STK.
  • Familiarity with simulation execution and data management on a Linux cluster.
Integration Innovation (i3)

Integration Innovation (i3)

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Integration Innovation (i3) provides technical and engineering services to the U.S. Department of Defense, specializing in missile defense, cybersecurity, and virtual training simulations. The company operates by fulfilling government contracts for systems engineering, software development, and flight operations support to maintain mission-critical military technology. Unlike many competitors, i3 is 100% employee-owned, which fosters a unique internal culture and a high level of commitment to project success. Its goal is to deliver specialized technical solutions for complex defense challenges, such as hypersonic technology and unmanned aerial systems integration.

Company Size

501-1,000

Company Stage

N/A

Total Funding

N/A

Headquarters

Huntsville, Alabama

Founded

2007

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Simplify Jobs

Simplify's Take

What believers are saying

  • MDA awarded i3 a $429 million IDIQ on June 10, 2025, through 2035.
  • Navy interactive courseware IDIQ runs through March 2029, supporting recurring training backlog.
  • The 2026 exempt offering seeks $15 million, signaling hiring, tooling, or acquisition flexibility.

What critics are saying

  • Army hypersonic flight-test work ends March 2026, creating near-term revenue replacement pressure.
  • A single-bid Army award and DoD dependence leave pricing exposed to recompetes.
  • If MDA or Navy ordering slows, i3 loses scale and existential contract concentration emerges.

What makes Integration Innovation (i3) unique

  • i3 pairs Huntsville engineering depth with long-cycle DoD mission work and clearances.
  • Employee ownership since October 2021 reinforces retention across classified defense programs.
  • Prime and subcontract roles span missile defense, aviation training, C5ISR, and cybersecurity.

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Benefits

Health Insurance

401(k) Company Match

Generous PTO

Health and wellness incentives

Tuition and certification reimbursement

Growth & Insights and Company News

Headcount

6 month growth

14%

1 year growth

14%

2 year growth

14%
Intelligence360 News
Dec 4th, 2025
Integration Innovation files to raise $15M in exempt securities offering

Integration Innovation has filed a notice with the US Securities and Exchange Commission for an exempt offering to raise $15 million in new funding. The filing was made under Rule 504 or 506 of Regulation D or Section 4(a)(5) of the Securities Act of 1933. Federal securities law requires companies selling securities without registration to file such notices within 15 days after the first sale of securities in the offering. No additional details about the company's business or the funding round were disclosed in the filing.

GovCon Wire
Mar 7th, 2024
Integration Innovation Wins $187M Navy Interactive Courseware Training Support IDIQ

The U.S. Navy has awarded Integration Innovation Inc. a potential five-year, $187.3 million contract to design, build, test and deliver instructor-facilitated and self-directed interactive courseware training products for naval aviation and aircrew ratings.

i3 Corp
Aug 17th, 2022
I3 Corps recognized as one of Huntsville-Madison County’s Best Places to Work 2022

Integration Innovation, Inc. is pleased to announce I3 Corps were named one of Huntsville-Madison County’s Best Places to Work 2022, receiving its seventh award.

i3 Corp
Oct 22nd, 2021
Integration Innovation, Inc. hires Richard Kretzschmar as Chief Executive Officer

Integration Innovation, Inc. is pleased to announce that Richard Kretzschmar has been appointed as Chief Executive Officer (CEO).