Engineering Intern, Product Security

Description

Onwards Together!

Illumio is the leader in ransomware and breach containment, redefining how organizations contain cyberattacks and enable operational resilience. Powered by the Illumio AI Security Graph, our breach containment platform identifies and contains threats across hybrid multi-cloud environments – stopping the spread of attacks before they become disasters.

Recognized as a Leader in the Forrester Wave for Microsegmentation, Illumio enables Zero Trust, strengthening cyber resilience for the infrastructure, systems, and organizations that keep the world running.

This is a 12 week internship program beginning on May 24th 2027 or June 21st 2027

Location: 4 on-site days a week in Sunnyvale, CA Headquarters.

Our Team's Vision:

At Illumio, the Office of the CTO and Security helps shape the company’s strategic technical direction while advancing the security of Illumio and our customers. Illumio’s Product Security team ensures our products are secure by design and resilient against evolving threats, helping protect some of the world’s most critical infrastructure. Those who join us partner with Engineering and Product Management to build security into how our products are designed, developed, and delivered.

As a Product Security Intern, you will help secure our products through a combination of secure code review, vulnerability triage, research, and automation. You’ll work alongside experienced security engineers, gain real-world exposure to Illumio’s platform, and learn how security is embedded throughout the software development lifecycle (SDLC).

Your Impact:

Gain in-depth knowledge of Illumio’s platform and how product security protects it from design through release

Learn how vulnerabilities are identified, triaged, and remediated using findings from static and dynamic analysis tools, penetration tests, and bug bounty programs

Participate in secure code reviews and threat modeling alongside experienced security engineers

Help build security automation scripts and tools that streamline vulnerability detection and triage

Research emerging threats, attack vectors, and mitigation strategies relevant to Illumio’s technology stack

Contribute to internal security documentation, such as best practices and remediation guides, and help promote secure coding practices across engineering teams

Your Toolkit:

Currently enrolled in a full-time Bachelor’s or Master’s degree program in Computer Science, Software Engineering, Cybersecurity or a related field with an expected graduation date in Winter 2026/Spring 2027

Coursework or project experience in areas such as secure coding, application security, or network security

Familiarity with at least one programming language (e.g., Python, Ruby, Go, C++); scripting experience is a plus

Strong interest in application security, vulnerability management, and secure software development

Basic understanding of common vulnerabilities (e.g., OWASP Top 10) is a plus.

Ability to work independently and as part of a team

Strong communication and interpersonal skills

A passion for learning and continuous improvement

What You’ll Gain:

Hands-on experience with real-world product security challenges at Illumio

Exposure to modern security tools, including SAST, DAST, and dependency scanners, and secure development practices

Insight into how vulnerability management, threat modeling, and secure code review work in practice

Mentorship from experienced security engineers and technical leaders

A deeper understanding of how security is embedded into the software development lifecycle

A supportive and inclusive environment that values curiosity, ownership, and continuous learning

To support you throughout your internship, Illumio interns can look forward to:

Stipend : A stipend to help support you during your internship.

Events & Experiences : Fun and meaningful events providing opportunities to connect with fellow Illumineers to build new skills and experience our culture.

Giving Back : Opportunities to volunteer and make an impact in our community.

Meals & Snacks : Stay fueled with a fully stocked office, snacks and beverages, plus catered lunch from local restaurants every day!

LI-PO1 LI-ONSITE

Candidates selected for an internship must have valid U.S. work authorization for the full duration of the internship. Illumio does not provide immigration sponsorship for internship positions; however, candidates who are independently eligible for employment authorization, including eligible F-1 students who obtain appropriate CPT or OPT authorization, may be considered.

Any required employment authorization must be in place before employment begins. If an intern is later considered for a full-time position, any need for future immigration sponsorship will be evaluated separately under Illumio’s immigration policy and the requirements of the position.

Our Commitment

Illumio believes that an environment of unique backgrounds, experiences, viewpoints, and individual contributions creates a culture of belonging, drives our future, and makes us stronger together in support of our customers and their success.

For roles in San Francisco and Los Angeles: Pursuant to the San Francisco Fair Chance Ordinance and the Los Angeles Fair Chance Initiative for Hiring, Illumio will consider for employment qualified applicants with arrest and conviction records.