Cyber Security Intern - Summer 2026

CACI•San Antonio, TX

About The Position

CACI is seeking a motivated Cybersecurity Intern to join our team focused on protecting standalone and network connected systems. As an intern, you will gain hands-on experience in defensive cybersecurity practices, system hardening, and secure OS image deployment under the guidance of experienced security professionals. This internship provides a valuable opportunity to learn practical cybersecurity skills while contributing to the protection of critical testing infrastructure. You will assist in vulnerability assessments, security monitoring, and implementation of security controls while developing fundamental skills that align with industry best practices.

Requirements

Currently pursuing a Bachelor's degree in Cybersecurity, Computer Science, Information Technology, or related field
Basic understanding of operating system security (Windows and Linux)
Familiarity with network security concepts and TCP/IP fundamentals
Interest in defensive cybersecurity practices and system hardening
Basic scripting knowledge (PowerShell, Bash, or Python)
Ability to follow detailed technical procedures and documentation
Strong problem-solving skills and attention to detail
Willingness to learn new security tools and technologies
Good communication skills and ability to work in a collaborative environment
Must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future

Nice To Haves

Previous coursework or projects related to cybersecurity
Familiarity with vulnerability assessment tools
Basic understanding of system imaging and deployment technologies
Experience with virtual machines and containerization
Knowledge of security compliance frameworks (NIST, CIS)
Interest in industrial control systems or equipment security
Experience with network analysis tools
Understanding of authentication mechanisms and access controls
Participation in cybersecurity competitions or CTF events
Knowledge of secure coding practices

Responsibilities

Assist in conducting security assessments of systems and networks
Help implement and monitor security controls for standalone and networked testing devices
Support the development and maintenance of secure OS image deployment processes
Participate in vulnerability scanning and assist with remediation efforts
Document security configurations and procedures according to industry standards
Learn to use security tools for network monitoring and threat detection
Assist with security patch management and testing procedures
Support the team in maintaining security compliance for testing environments