About Cloudflare's Engineering Teams
Anytime we push code, it automatically affects the millions of Internet properties (powering websites, remote teams, APIs, mobile apps, etc.) running on our global network. Cloudflare's network is one of the largest in the world and spans over 330 cities in more than 125 countries. What's more, Cloudflare operates within 50 milliseconds of 95% of the Internet-connected population globally (for context, the blink of an eye is 300-400 milliseconds!). We are passionate about making the Internet more secure, reliable, and faster for everyone.
Cloudflare's Engineering teams build and run the software that handles the massive amount of traffic that flows through our network. We also have teams that build the UI and control plane for our software, using modern patterns and libraries in a microservices-based architecture. Technologies include: Typescript/Javascript, Go, Rust, C/C++ and Python.
About the Internship Program
The ideal intern is passionate about making the Internet a better place. You will work alongside experienced engineers. You will push code this spring that touches hundreds of millions of web surfers. We like to get things done, so we are looking for interns who are curious, proactive, and able to complete projects. This is a great opportunity for engineers who want to learn to develop at Internet scale.
What would you do as a Cloudflare intern?
- Ship and deliver projects over 12 weeks with autonomy and support.
- Work cross-functionally with various teams.
- Work closely with a mentor to guide you through the internship 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 project to the entire company at the end of the internship.
- Connect and learn from our executives and leadership team including our co-founders.
- Learn and develop skills through our professional development workshops.
- Write for our Cloudflare blog and be featured on Cloudflare.tv sessions.
You can check out our internship blogs to learn more about our program and hear directly from our past interns.
Examples of desirable skills, knowledge and experience
- Currently pursuing a degree or program in Computer Science, Engineering, Mathematics, Statistics or relevant field to the role.
- Open to recent graduates within last 6 months.
- 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 spring internship.
- In office 3-4 days a week in Lisbon office.
- Bonus: demonstrated passion for software development, such as personal projects, open-source contributions, or experience with our developer platform Cloudflare Workers.
Important dates:
- Deadline to apply: October 27, 2026
- Internship dates: January 12, 2026 - April 3, 2026 (12 week internship)
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What We Do
Cloudflare, Inc. (NYSE: NET) is the leading connectivity cloud company on a mission to help build a better Internet. It empowers organizations to make their employees, applications and networks faster and more secure everywhere, while reducing complexity and cost. Cloudflare’s connectivity cloud delivers the most full-featured, unified platform of cloud-native products and developer tools, so any organization can gain the control they need to work, develop, and accelerate their business.
Powered by one of the world’s largest and most interconnected networks, Cloudflare blocks billions of threats online for its customers every day. It is trusted by millions of organizations – from the largest brands to entrepreneurs and small businesses to nonprofits, humanitarian groups, and governments across the globe.
Why Work With Us
Cloudflare employees come from all walks of life. We are mission-driven, and our team is energized by a collaborative, creative environment that celebrates our differences and fosters new ways to grow together.
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Cloudflare Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
We are committed to developing a global team that is distributed with a flexible working approach. Doing this equitably and inclusively is essential to our success. Visit our careers site for more on 'How & Where We Work.'
