At a Glance
- Tasks: Work on security projects to protect billions of Internet users and enhance your skills.
- Company: Join Cloudflare, a leader in internet security with a focus on innovation and collaboration.
- Benefits: Gain hands-on experience, mentorship, and networking opportunities in a dynamic environment.
- Other info: Enjoy a vibrant workplace culture with social events and career growth opportunities.
- Why this job: Make a real impact on internet security while learning from industry experts.
- 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 or via mail at 101 Townsend St. San Francisco, CA 94107.
Security Engineer Intern (Summer 2026) in London 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 rewarding place to kickstart your career in cybersecurity.
StudySmarter Expert Advice🤫
We think this is how you could land Security Engineer Intern (Summer 2026) in London
✨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 role. Building connections can give you insider info that sets you apart.
✨Tip Number 2
Show off your passion for security! Whether it’s through personal projects, open-source contributions, or even just discussing recent vulnerabilities, make sure to highlight your enthusiasm during interviews. It’s all about demonstrating that security-first mindset!
✨Tip Number 3
Prepare for technical questions! Brush up on your knowledge of the OWASP Top 10 and common attack vectors. Practising how to explain these concepts clearly will help you shine in interviews and show that you’re ready to tackle real-world challenges.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re serious about joining the Cloudflare team. Let’s get you that internship!
We think you need these skills to ace Security Engineer Intern (Summer 2026) in London
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 align with the role.
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 your qualifications and fit for the internship.
Apply Through Our Website:We encourage you to submit your application directly through our website. This ensures that your application is reviewed promptly and gives you the best chance to stand out in the process!
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 the field.
✨Show Off Your Projects
If you've worked on personal projects or contributed to open-source, be ready to talk about them! This not only demonstrates your skills but also your enthusiasm for security and software development.
✨Ask Insightful Questions
Prepare some thoughtful questions about the team’s current projects or challenges they face. This shows your curiosity and eagerness to learn, which are key traits for a successful intern.
✨Connect with Your Interviewers
Don’t forget to build rapport during the interview! A friendly chat can go a long way. Show genuine interest in their experiences at Cloudflare and how they approach security challenges.
