Software Engineering Intern Summer 2026

CACI International•Lisle, IL

5d•Onsite

About The Position

At CACI, we are proud of our innovative workforce and the technology we deliver to our enterprise and mission customers. Want to work for a company that is recognized as a top workplace across the country? We're searching for Software Engineering Interns to join our team in Lisle, IL for Summer 2026! The internship will begin in May and last 10-12 weeks. You will be expected to work 100% on-site.

Requirements

Currently pursuing an undergraduate or graduate degree in Computer Science, Computer Engineering, Electrical Engineering or related field
Must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future
Must be able to obtain and maintain applicable security clearance
Broad computer science/computer engineering background including broad knowledge of algorithm and data structure implementation
Experience and interest in some of the following technology areas desired: Networking, Security, Vulnerability research; etc.
Knowledge of Microsoft software applications and other software applications as required
Experience with high-level programming languages such as C/C++
Experience with scripting languages such as Python
Experience with source code management tools such as Git
Experience with GNU/Linux software development and toolchains
Interest in algorithms, data structures, and computational complexity

Nice To Haves

Minimum GPA of 3.0 or higher is preferred, not required
Previous internship/co-op or other work experience, leadership and teamwork capabilities, interpersonal communication skills, and activities (professional/community/extracurricular)