Software Engineering Internship

i3 is excited to offer a part-time Software Engineering Internship within our Science, Engineering, and Technology (SET) business unit. This is a unique opportunity to gain hands-on experience in developing cutting-edge autonomy and command and control (C2) software for uncrewed air, ground, and waterborne systems. Join our dynamic team where innovation meets real-world applications.

This internship will be for the Summer 2026 period and will be onsite in Huntsville, AL.

At i3, our interns don't just observe, they innovate. This position allows you to sharpen your skills, build professional connections, and make an impact on the cutting edge of software and technology development. If you're passionate about software engineering and driven to learn, we'd love to hear from you.

This internship will run through the summer and allow you to work closely with an Agile software development team, delivering impactful solutions for our Department of War (DoW) customers. You will collaborate with talented professionals, contribute to meaningful projects, and gain valuable insights into the software development lifecycle in a fast-paced, agile environment.

Education, Experience and Required skills

• Must be a U.S. Citizen.
• High school diploma required.
• 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 have completed at least 2 years of college at the time of the internship.
• Candidate must be a team player and be creative, adaptive, and excited to learn.

Preferred Experience/Skills

• Experience with C, C++, Java, or C#/.NET.
• Prefer understanding of Agile software development.
• Familiarity with git for software source control and configuration management.
• Familiarity with common networking concepts like IP addresses, s
• Experience with remote controlled boats, vehicles, or planes is a plus.
• Experience with Linux is a plus
• Experience with single board computers (Raspberry Pi, NVIDIA Jetson, etc.) is a plus.

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 800 a.m 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