About Cloudflare’s Security Team

Security Engineering spans across the Cyber Defense & Engineering and CloudforceOne Threat Intelligence & Research teams within the Security group under our Chief Security Officer. We build the systems that protect our massive network, defending the Internet against evolving threats through Go, Rust, Python, and C/C++.

Available location(s): London, UK

Internship Program Overview

The ideal Security Engineering intern is passionate about making the Internet a more secure place. You will work alongside experienced security engineers to identify vulnerabilities, harden our infrastructure, and build tools that protect billions of Internet users. We value curiosity, a security‑first mindset, and an eagerness to learn.

What Would You Do as a Cloudflare Intern?

• Ship and deliver security‑focused projects over 12–16 weeks with autonomy and support.
• Work cross‑functionally with Pr...