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i3 has a Summer 2026 internship opportunity for a Program Finance Intern to be located at our Corporate Office in Huntsville, AL. The Intern will provide support to the Program Finance staff performing duties to include Auditing employee travel voucher submissions and setting up labor categories a...

i3 is offering a part-time Summer 2026 internship position within our Accounting Department for Huntsville, AL. This candidate will be exposed to the Accounting environment by learning the basics of Accounts Payable, Accounts Receivable, Time and Expense, etc. The intern program allows students wit...

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...

i3 is seeking a Web Developer with an interest in web applications, website design, and cloud architecture. In this role, you will primarily be working on a product that enables virtual training. As part of the core team, you will help develop critical capabilities for a cloud-based training distrib...

i3 is seeking a skilled and highly motivated Software Developer to join our team supporting Ground Test scenario design for the Missile Defense Agency. The Ground Test team plays a critical role in evaluating the performance of our nation's defense systems through a variety of Hardware-in-the-Loop a...