Frontend Engineer


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 approximately 25 million Internet properties, for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have 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 named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company. 

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! 

About the Department

You'll be a part of the Global Performance Monitoring at Cloudflare. We operate with small groups of highly motivated and experienced systems, data science, and network engineers who like to solve problems. We collect and explore vast amounts of RUM-generated data from multiple sources, monitor our global network's performance, and share actionable insight with our teams and customers.

What you'll do

In this role, you will play an active part in building the user and technical interfaces, the tools, and the methodologies to retrieve, anonymize, categorize, and explore vast amounts of data at Cloudflare. The Global Performance Monitoring team, which you'll be part of, will solve challenges related to Big Data, Open Data, Data Visualizations, and Storytelling, to name a few.

As a Frontend Engineer, you'll be working with the team and focus on the technology to provide the best UX and interactivity for the products and functionality we'll be releasing. The team will also be doing a fair amount of research and exploring new ideas, where motivation, creativity, and innovative thinking will be essential.

The ideal candidates will have experience working with large-scale applications and a track record of producing great output while working with other teams in the company. 

  • Minimum of 5+ years experience building web applications using libraries like ReactJS, Angular, Ember, and Vue.js
  • Experience in managing application state such as Redux, React Hooks
  • Strong knowledge of semantic HTML, CSS, and JavaScript
  • Understanding of responsive design and its implementation
  • Extensive knowledge of data visualization tooling and libraries
  • Good understanding of the mathematics and data manipulation involved
  • Extensive knowledge of the JavaScript/Typescript ecosystem
  • Ability to work in cross-functional teams
  • Confidence with debugging and performance profiling with browser DevTools
  • Unit/integration testing experience. Knowledge of Cypress, React Testing Library, Mocha/Chai or Enzyme is a plus
  • Experience working with and/or designing GraphQL
  • Design and build RESTful API services using Golang, Javascript, and Python
  • Experience building/maintaining client side JavaScript SDKs
  • Knowledge of highly available systems on Kubernetes and Docker

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 commitment 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!

This position may require access to information protected under U.S. export control laws, including the U.S. Export Administration Regulations. Please note that 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 or via mail at 101 Townsend St. San Francisco, CA 94107.

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