Software Engineering Intern

Software Engineering Intern - Summer 2026Job Category: Intern/Co-opTime Type: Part timeMinimum Clearance Required to Start: NoneEmployee Type: Part-Time On-CallPercentage of Travel Required: NoneType of Travel: None* * *

The Opportunity:
Join our innovative team developing cutting-edge Commercial Solutions for Classified (CSfC) products that protect national security systems and classified data.

As a Software Engineering Intern, you'll gain hands-on experience working with NSA-approved commercial technologies that implement layered cybersecurity solutions for the Department of Defense, Intelligence Community, and federal agencies. This is a unique opportunity to contribute to mission-critical secure communications systems while developing your skills in cybersecurity, network security, encryption technologies, and software development in a classified environment.

The internship will begin in May and last 12 weeks. It offers a hybrid schedule, with equal time spent on-site and working remotely.

Responsibilities:

• Assist in the design, development, and testing of software components for CSfC-compliant products and solutions
• Support integration efforts of commercial security components that meet NSA CSfC capability package requirements
• Participate in code reviews and collaborate with senior engineers on implementing layered encryption architectures
• Help develop and maintain automated testing frameworks to ensure product security and functionality
• Contribute to documentation of software designs, APIs, and security architectures
• Assist in troubleshooting and debugging security-focused software applications
• Support DevSecOps processes including CI/CD pipeline development and infrastructure automation
• Participate in team meetings and contribute ideas for product improvements and security enhancements
• Work with cross-functional teams including security engineers, system architects, and quality assurance

Qualifications:

Required: 

• Currently enrolled in a Bachelor's or Master's degree program in Computer Science, Software, Engineering, Cybersecurity or related technical 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
• Strong programming skills in at least one of: Java, Python, C++, or C, Rust or other compiled language
• Understanding of fundamental software development concepts including data structures and algorithms
• Basic knowledge of networking concepts (TCP/IP, routing, protocols, VPN, Firewall)
• Familiarity with Linux/Unix operating systems
• Strong problem-solving skills and attention to detail
• Excellent written and verbal communication skills
• Ability to work both independently and collaboratively in a team environment

Desired:

• Previous internship or project experience in software development
• Knowledge of cybersecurity principles and encryption technologies
• Knowledge of quantum cryptographic systems and algorithms
• Experience with version control systems (Git, GitHub, GitLab)
• Understanding of network security concepts (VPNs, firewalls, secure communications)
• Exposure to DevSecOps practices and CI/CD tools
• Coursework or projects related to information security or cryptography
• Experience with virtualization technologies (Docker, VMware, etc.)
• Knowledge of secure coding practices and security testing
• Familiarity with Agile development methodologies
• Active security clearance (Secret or Top Secret)

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What You Can Expect:

A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.

Your potential is limitless. So is ours.

Learn more about CACI here.

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Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. Learn morehere.

Since this position can be worked in more than one location, the range shown is the national average for the position.

The proposed salary range for this position is:

$39,900-$79,900

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.