At a Glance
- Tasks: Work on security projects to protect the Internet and learn from experienced engineers.
- Company: Join Cloudflare, a leader in internet security with a focus on innovation.
- Benefits: Gain hands-on experience, mentorship, and networking opportunities in a dynamic environment.
- Other info: Collaborate with diverse teams and present your work to the entire company.
- Why this job: Make a real impact on global internet security while developing your skills.
- Qualifications: Pursuing a degree in Computer Science or related field with a passion for security.
The predicted salary is between 20000 - 30000 € per year.
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++.
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 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.
Examples Of Desirable Skills, Knowledge And Experience
- Currently pursuing a degree in Computer Science, Cybersecurity, Computer Engineering, or a related technical field.
- Solid understanding of the OWASP Top 10, common attack vectors (XSS, SQLi, CSRF), and mitigation strategies.
- 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 London; relocation not provided.
- Bonus: Demonstrated passion for security & software development, such as personal projects, open‑source contributions, or experience with our developer platform using Cloudflare for Students.
This position may require access to information protected under U.S. export control laws, including the U.S. Export Administration Regulations. Any offer of employment may be conditioned on your authorization to receive software or technology controlled under these U.S. export laws without sponsorship for an export license.
Cloudflare is proud to be an equal opportunity employer. We are committed to providing equal employment opportunity for all people and place great value in both diversity and inclusiveness. All qualified applicants will be considered for employment without regard to their, or any other person's, perceived or actual race, color, religion, sex, gender, gender identity, gender expression, sexual orientation, national origin, ancestry, citizenship, age, physical or mental disability, medical condition, family care status, or any other basis protected by law. We are an AA/Veterans/Disabled Employer. Cloudflare provides reasonable accommodations to qualified individuals with disabilities. Please tell us if you require a reasonable accommodation to apply for a job. Examples of reasonable accommodations include, but are not limited to, changing the application process, providing documents in an alternate format, using a sign language interpreter, or using specialized equipment. If you require a reasonable accommodation to apply for a job, please contact us via e‑mail at hr@cloudflare.com or via mail at 101 Townsend St. San Francisco, CA 94107.
Security Engineer Intern (Summer 2026) employer: Cloudflare Area 1 Security
Cloudflare is an exceptional employer for aspiring Security Engineers, offering a dynamic internship experience in London where you can work on impactful security projects that protect billions of Internet users. With a strong emphasis on mentorship, collaboration, and professional growth, interns are encouraged to develop their skills while engaging with a diverse team and participating in various networking opportunities. The inclusive work culture and commitment to employee development make Cloudflare a fantastic place to launch your career in cybersecurity.
StudySmarter Expert Advice🤫
We think this is how you could land Security Engineer Intern (Summer 2026)
✨Tip Number 1
Network like a pro! Reach out to current or former interns and employees on LinkedIn. Ask them about their experiences and any tips they might have for landing the internship. Building connections can give you insider info and make your application stand out.
✨Tip Number 2
Show off your passion for security! Whether it’s through personal projects, open-source contributions, or even writing about security topics, make sure to highlight these in conversations. It shows you’re not just interested in the role but genuinely care about making the Internet safer.
✨Tip Number 3
Prepare for interviews by brushing up on your technical skills and understanding of common vulnerabilities. Practice explaining concepts like the OWASP Top 10 in simple terms. This will help you communicate effectively and demonstrate your knowledge during discussions.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen. Plus, keep an eye on our socials for any networking events or webinars where you can connect with the team and learn more about the role.
We think you need these skills to ace Security Engineer Intern (Summer 2026)
Some tips for your application 🫡
Show Your Passion for Security:When writing your application, let your enthusiasm for making the Internet a safer place shine through. Share any personal projects or experiences that highlight your interest in security and software development.
Tailor Your Application:Make sure to customise your CV and cover letter to reflect the skills and experiences mentioned in the job description. Highlight your understanding of the OWASP Top 10 and any relevant coursework or projects that demonstrate your technical abilities.
Be Clear and Concise:Keep your application straightforward and to the point. Use clear language and avoid jargon unless it’s relevant to the role. This will help us quickly see how you fit into our team and what you can bring to the table.
Apply Through Our Website:We encourage you to submit your application directly through our website. This ensures that your application is seen by the right people and helps us keep track of all applicants efficiently. Plus, it’s super easy!
How to prepare for a job interview at Cloudflare Area 1 Security
✨Know Your Security Basics
Make sure you brush up on the OWASP Top 10 and common attack vectors like XSS and SQLi. Being able to discuss these topics confidently will show your understanding of security principles and your passion for making the Internet safer.
✨Show Off Your Curiosity
During the interview, share any personal projects or open-source contributions related to security or software development. This demonstrates your eagerness to learn and adapt, which is exactly what the team is looking for in an intern.
✨Prepare for Technical Questions
Expect some technical questions that may involve coding or problem-solving. Practise coding in languages like Go, Rust, Python, or C/C++. Familiarise yourself with common security tools and methodologies to impress your interviewers.
✨Engage with Your Interviewers
Don’t hesitate to ask questions about the team’s projects or the company culture. Engaging with your interviewers shows your interest in the role and helps you gauge if Cloudflare is the right fit for you.
