Software Developer Internship

i3 is offering a part-time Summer 2026 internship position within our Army Training Solutions business unit. This candidate will be exposed to the development of Interactive Multimedia Instruction (IMI) within an Agile software development environment. This candidate will interact with Instructional Systems Designers (ISD), 3D Artists, Software Developers, Designers, and Program Managers in support of DoW training development.

• Work with Agile software development teams in creating IMI for DoW customers using commercial game engines.
• Work closely with your team to implement features, and supporting those features through tooling as needed
• Implement user interface screens, transitions, animations, and VFX
• Iterate using customer feedback in an Agile environment to optimize for simplicity, comprehension, and function

Required Experience

• Be a US citizen.
• High school diploma required
• Candidate must have completed at least 2 years of higher education, job experience can be substituted for education
• Candidate must be currently enrolled in (Summer 2026) or continuing an undergraduate or graduate degree program the following semester (Fall 2026) at the time of the internship.
• Candidate must be a team player and be creative, adaptive, and excited to learn
• Experience in an object-oriented programming language such as C#, Java, Python, or C++.

Preferred Experience

• Experience with the Unity gaming engine
• Experience authoring custom editors, inspectors, and tooling within Unity
• Prefer understanding of Agile software development
• Familiarity with GIT for software source control and configuration management
• Familiarity with 3D graphics programming: DirectX, OpenGL, etc.

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.
• The employee is occasionally required to sit; climb or balance; and stoop, kneel, crouch or crawl. The employee must be able to lift and/or move up to 10 pounds and occasionally lift and/or move up to 25 pounds.
• Specific vision abilities required by this job include close vision, distance vision, peripheral vision, depth perception and ability to adjust focus.
• 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

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!