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53 I3 Jobs Hiring Near You

Overview i3 is seeking a Software Engineer with 3-7 years of professional experience to help develop cutting edge command and control (C2) and autonomy software for uncrewed platforms including ...

Overview i3 is searching for a Global Hawk Pilot to join our team at NASA Armstrong Flight Research Center (AFRC)! Responsible for planning and execution of ground and flight operations of NASA RQ-4 ...

Overview The Tactical Software and Autonomy Solutions (TSAS) team at i3 supports DoD customers in developing cutting-edge autonomy software architectures to distribute autonomous control across a ...

Overview Integration Innovation, Inc. (i3) is seeking a motivated, highly detail-oriented Mechanical Integrator to perform precision assembly of delicate items containing hazardous or explosive ...

Overview i3 is looking for a Solution-Level Software System Engineer to join our team to support the PAE Fires Integrated Fires Mission Command (IFMC) Project Office. The candidate in this role will ...

Overview Integration Innovation, Inc. (i3) is seeking a motivated SME level AI/Machine Learning Engineer to support the Defense Intelligence Agency (DIA) Enterprise Data Management & Analytics (EDMA ...

Active TS/SCI About i3 i3 is a technically diverse, 100% team member owned business, headquartered in Huntsville, Alabama specializing in missile and aviation systems engineering and logistic ...

Overview i3 seeks a qualified professional with extensive experience in Missile Weapon Systems, including the Aegis Weapon System, Tactical Tomahawk Weapons Control System, Mid-Range Capability (MRC ...

Regular i3 hours are 8:00 a.m. - 5:00 p.m. Monday-Friday, however, additional hours may be required on occasion. Regular and punctual attendance is required. About i3 i3 is a technically diverse, 100 ...

Senior Systems Security Engineer (SSE)

Huntsville, AL · On-site

$106K - $146K/yr

About i3 i3 is a technically diverse, 100% team member owned business, headquartered in Huntsville, Alabama specializing in missile and aviation systems engineering and logistic services, electronic ...

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Infographic showing various job openings at I3 in the United States as of August 2026, with employment types broken down into 100% Full Time. Highlights an 98% Physical, and 2% Hybrid job distribution.

Modeling and Simulation Engineer 6-DOF

i3

Huntsville, AL • On-site

Full-time

Medical, Retirement, PTO

Re-posted 10 days ago


Job description

Overview

i3 is seeking an engineer with programming experience to support computer modeling and simulation support activities for guided and unguided rockets.

This is an on-site position and is located in Huntsville, AL.

Responsibilities
  • Perform software development and system study activities related to missile simulation data processing, analysis, and visualization.
  • Have a good working knowledge of C and/or C++ software development within a Windows and/or Linux environment.
  • The candidate will be expected to understand the basics of missile system modeling and 6-DOF 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.
  • Responsible for testing and documentation associated with developing software applications.
  • Perform demonstrations and interface with customers to ensure product meets end customer goals.
  • Present engineering concepts to internal teammates and customers alike.
  • Other duties as assigned.
Qualifications

Required:

  • BS or MS in Engineering and/or Computer Sciences (Mechanical or Aerospace preferred)
  • Active Secret Security Clearance and ability to maintain Clearance required
  • Minimum 3 years of engineering related programming and system performance analysis
  • 3-10 years of programming for engineering analysis
  • Strong background in C and/or C++ development
  • General knowledge of missile dynamics and subsystem functions
  • General knowledge of physics-based simulation and numerical methods
  • Working knowledge of command line operations, compiling from the command line and remote connectivity

Preferred:

  • Experience writing or contributing to technical reports and presentations
  • BASH Scripting and/or other shell languages
  • Use of visualization tools for scientific data (SIMDIS, MATLAB, STK)
  • Familiarity with simulation execution and data management on a Linux cluster

 Knowledge/Skills:

  • Good communication, teamwork, and client service skills; ability to clearly communicate in discussions and written documents, and to deliver feedback clearly.
  • Work independently with accountability for accurate and complete results.
  • Be organized and detail oriented.
  • Work well both independently and in a team environment.
  • Must be able to communicate with others effectively.
  • Analyze information and respond appropriately.
  • Manage time wisely and prioritize tasks.

 Physical Demands:

  • The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.
  • While performing the duties of this job, the employee is regularly required to talk or hear.
  • The employee frequently is required to stand; walk; handle or feel; and reach with hands and arms.
About i3

i3 is a technically diverse, 100% team member owned business, headquartered in Huntsville, Alabama specializing in missile and aviation systems engineering and logistic services, electronic warfare and electromagnetic effects analysis, UAS system integration and flight operations, full lifecycle C5ISR engineering services, cybersecurity and IT/IA innovative solutions and virtual training, simulation & serious game development and implementation. We have established a broad offering of products and capabilities collectively providing decades of experience supporting the full complement of DoD military services, Missile Defense Agency, National Aeronautics and Space Administration, and a variety of other Government organizations and private industry customers.

Perks of being a team member owner include:

  • Long-term financial security
  • Higher job satisfaction
  • Greater job security
  • Personal and professional growth
  • Great company culture

Other outstanding benefits:

  • Excellent insurance coverage
  • 401(k) match
  • Generous PTO
  • Health and wellness incentives
  • Tuition and certification reimbursement
  • Countless opportunities to give back to the community through i3 Cares

We work hard. We compete hard. We play hard. Apply now to join us!

Employment Type: FULL_TIME