# Security Engineer Intern (Summer 2026)

**Company**: Cloudflare
**Location**: In-Office
**Work arrangement**: onsite
**Experience**: entry
**Job type**: internship
**Category**: Engineering
**Industry**: Technology

**Apply**: https://job-boards.greenhouse.io/cloudflare/jobs/7582150
**Canonical**: https://yubhub.co/jobs/job_8ded847c-cd1

## Description

About Us

Cloudflare is on a mission to help build a better Internet. We protect and accelerate any Internet application online without adding hardware, installing software, or changing a line of code.

As a Security Engineer Intern, you will work alongside experienced security engineers to identify vulnerabilities, harden our infrastructure, and build tools that protect billions of Internet users. We are looking for interns who are curious, proactive, and able to approach problems with a 'security-first' mindset.

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.

What We're Looking For

- Education: Currently pursuing a degree in Computer Science, Cybersecurity, Computer Engineering, or a related technical field.

- Security Fundamentals: 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.

What Makes Cloudflare Special?

We're not just a highly ambitious, large-scale technology company. We're a highly ambitious, large-scale technology company with a soul. Fundamental to our mission to help build a better Internet is protecting the free and open Internet.

Project Galileo: Since 2014, we've equipped more than 2,400 journalism and civil society organizations in 111 countries with powerful tools to defend themselves against attacks that would otherwise censor their work, technology already used by Cloudflare's enterprise customers--at no cost.

Athenian Project: In 2017, we created the Athenian Project to ensure that state and local governments have the highest level of protection and reliability for free, so that their constituents have access to election information and voter registration. Since the project, we've provided services to more than 425 local government election websites in 33 states.

1.1.1.1: We released 1.1.1.1 to help fix the foundation of the Internet by building a faster, more secure and privacy-centric public DNS resolver. This is available publicly for everyone to use - it is the first consumer-focused service Cloudflare has ever released.

Here’s the deal - we don’t store client IP addresses never, ever. We will continue to abide by our privacy commitment and ensure that no user data is sold to advertisers or used to target consumers.

Sound like something you’d like to be a part of? We’d love to hear from you!

## Skills

### Required
- Go
- Rust
- Python
- C/C++
- OWASP Top 10
- XSS
- SQLi
- CSRF