Cloudflare · 8 hours ago
Security Engineer Intern (Summer 2026)
Austin, TX
Internship
Onsite
Intern
Start in 2026 SummerCloudflare is on a mission to help build a better Internet, running one of the world’s largest networks that powers millions of websites. The Security Engineer Intern will work alongside experienced engineers to identify vulnerabilities, harden infrastructure, and build tools to protect users, while gaining valuable experience in security engineering.
AnalyticsEnterprise SoftwareSecurityWeb Hosting
Responsibilities
Ship and deliver security-focused projects over 12-16 weeks with autonomy and support
Work cross-functionally with Product, Infrastructure, and Engineering teams to integrate security into every stage of the development lifecycle
Work closely with a mentor to guide you through the internship, develop your security expertise, and help with career goals
Build your network across the company through our various in and out of office socials, networking programs, Employee Resource Group (ERG) programs, and Activity Groups
Present your security project to the entire company at the end of the internship
Connect and learn from our executives and leadership team including our co-founders
Write for our Cloudflare blog (e.g., documenting a new security tool or a vulnerability research finding) and be featured on Cloudflare.tv sessions
Qualification
Required
Currently pursuing a degree in Computer Science, Cybersecurity, Computer Engineering, or a related technical field
A solid understanding of the OWASP Top 10, common attack vectors (XSS, SQLi, CSRF), and how to mitigate them
Demonstrated critical thinking skills and drive to learn and adapt new technologies
Curiosity, empathy and ability to get things done
Ability to commit to a minimum 12 week summer internship
In office 3-5 days a week in the location of the internship
Local to Austin; relocation not provided
Preferred
Demonstrated passion for security & software development, such as personal projects, open-source contributions, or experience with our developer platform using Cloudflare for Students
Company
Cloudflare
Cloudflare is a web performance and security company that provides online services to protect and accelerate websites online.
Founded in 2009
1001-5000 employees
H1B Sponsorship
Cloudflare has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (117)
2024 (115)
2023 (66)
2022 (98)
2021 (83)
2020 (37)
Funding
Current Stage
Public CompanyTotal Funding
$2.08BKey Investors
Franklin TempletonFidelityUnion Square Ventures
2025-06-13Post Ipo Debt· $1.75B
2019-09-12IPO
2019-03-12Series E· $150M
Leadership Team
Matthew Prince
CEO & Co-Founder
Lee Holloway
Co-Founder & Lead Engineer
Recent News
The Latest Tech News from Techreport
2026-02-03
Security Boulevard
2026-02-02
2026-01-24
Company data provided by crunchbase