About Us

At Cloudflare, we have our eyes set on an ambitious goal: to help build a better Internet. Today the company runs one of the world’s largest networks that powers trillions of requests per month. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare have all web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was recognized by the World Economic Forum as a Technology Pioneer and named to Entrepreneur Magazine’s Top Company Cultures list.

We realize people do not fit into neat boxes. We are looking for curious and empathetic individuals who are committed to developing themselves and learning new skills, and we are ready to help you do that. We cannot complete our mission without building a diverse and inclusive team. We hire the best people based on an evaluation of their potential and support them throughout their time at Cloudflare. Come join us!  

What you'll do

You will work as part of the Product Strategy engineering team in London building Cloudflare Gateway. Gateway provides security to business teams on the Internet without compromising performance. The team is building an edge proxy/firewall that secures internet traffic to/from an end-users device.

You will work predominantly in Rust to build and maintain a forward HTTP proxy that can :

  • Handle connection and request orchestration
  • Manage and execute filter-based firewall rules (wirefilter link)
  • Perform streaming data loss prevention (DLP)
  • Anti-Virus support
  • Integrate with Clouflare Workers

You’ll use your prior experience of launching and operating global scale services to ensure that all these systems meet high operational standards. This will involve working on the technical design of systems to improve predictability and resilience, and working with other engineers to improve development processes, operational understanding and monitoring and alerting systems.

  • Your work will focus on building robust, secure and high performance distributed systems.
  • We are a small engineering team operating at a massive scale, so what you do will have a huge influence.
  • We work in agile teams, so you will be supported by colleagues, and collaborate with other teams around the company.

Examples of desirable skills, knowledge and experience (We do not require you to have all of these)

  • Understanding of basics of programming language theory (state machines, NFA/DFA, regular languages, compiler optimizations and code generation)
  • Good knowledge of level 7 protocols (HTTP(S), HTTP/2, WebSocket, WebRTC)
  • Good knowledge of level 4 protocols (TCP/UDP)
  • Engineering software systems for reliability
  • Building and operating an enterprise scale distributed system
  • Experience with continuous / rapid release engineering
  • Strong experience of tooling and process automation
  • How to talk about your work to technical and non-technical audience
  • Good unix knowledge
  • Understanding of performance analysis and debugging (with tools like perf, sar, strace)
  • Understanding of security issues and responsibilities
  • Building high volume logging and analytics pipelines (we use Kafka and Clickhouse)
  • Designing and building APIs


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: We equip politically and artistically important organizations and journalists 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: We created 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.

Path Forward Partnership: Since 2016, we have partnered with Path Forward, a nonprofit organization, to create 16-week positions for mid-career professionals who want to get back to the workplace after taking time off to care for a child, parent, or loved one. We released 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 policy 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!

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.  

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