About Us

At Cloudflare, we have our eyes set on an ambitious goal: to help build a better Internet. Today, Cloudflare runs one of the world’s largest distributed networks that powers more than 1.5 trillion pageviews each month across 5 million Internet properties. More than 10 percent of all global Internet requests flow through Cloudflare’s network. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code.

Our customers range from Fortune 500 companies and nonprofits to small businesses and budding entrepreneurs. Every day, about 12,000 new customers sign up. We’re working to create a faster, more secure, and more reliable experience for anyone online and given the scale at which we operate, our mission is big. Our team is hard at work shaping the future of the Internet by solving some of its toughest challenges. Come join us.

About the Department

Cloudflare’s Engineering Team builds and runs the software that handles about 10% of HTTP requests on the Internet today. We also build and run the internal tools that builds and runs our software. The Engineering Team is split into two groups: one handles product development and the other handles operations. Product development covers both new features and functionality and scaling our existing software to meet the challenges of a massively growing customer base. The operations team handles one of the world’s largest networks with data centers in 102 cities worldwide.

About the Role

Back in 2014, Cloudflare launched Universal SSL to provide all of our customers with the security of encrypted traffic between visitors and Cloudflare’s network. On the day we flipped the switch, we doubled the amount of sites using SSL/TLS on the internet. Since then, we’ve been working on providing even more ways to encrypt traffic easier and more effectively. To better serve our customers, we’re constantly improving our systems for issuing, managing, and deploying TLS certificates. By joining Cloudflare’s Security Engineering team, you can help ensure that every site owner has the ability to provide their users with a secure connection.

Your code will help ensure millions of websites have access to encryption. As such, the results of your code will be felt by millions of site owners and billions of visitors every day. We’re continuously providing technology to site owners that was previously only available to the largest organizations. Your contributions will help make the web a faster, safer, better, and more heavily encrypted place.


  • Build services (small or micro) with RESTful APIs and their own datastores using Python and Go.

  • Write/update a spec for your service, so others know how it works

  • Integrate multiple services via message queue-like (Kafka) systems

  • Evaluate 3rd party and open source tools. Contribute to open source projects that we use internally.

  • Build tools to allow other departments to keep track of certificate status

  • Design and implement alerts, write procedures for ops to handle such alerts, or be escalated-to around unresolved operational issues.

  • Read and understand code from a legacy codebase to migrate logic to a modern services architecture.

  • Review the code of fellow engineers via pull requests.


  • Have significant experience designing, coding, and implementing applications from the datastore to the public interface

  • Are aware of the constraints around code performance, data storage and retrieval, caching, distributed systems, and customer needs

  • BA/BS in Computer Science or equivalent experience

  • Have at least 5 years of development experience

  • Have used statically typed languages (we use Golang)

  • Are willing to use (and learn, if needed) Go and Python on a regular basis

  • Are willing to use (and learn, if needed) PHP on a less-regular basis

  • Are experienced with designing, consuming, or implementing RESTful services

  • Are experienced with working with distributed systems, SOA, or microservices

  • Have good working knowledge of traditional databases (PostgreSQL or other relational database)

  • Are passionate about writing reusable code that empowers other developers to work faster and smarter

  • Can deliver well-tested code that enterprises can rely on

  • Have working source control knowledge including branching, merging, and rebasing (we use git)

  • Display a strong work ethic and willingness to continuously improve

Bonus Points

  • Experience with message queues (Kafka, RabbitMQ, etc)

  • Experience working with a GLNP (Go, Linux, Nginx, PostgreSQL) stack

  • Experience with PL/PGSQL stored procedures

  • Experience with key-value data stores (Redis, HBase, HDFS, or other)

What Makes Us 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. In 2014, we launched Project Galileo, an initiative through which we partner with global NGOs to identify websites at risk of attack and provide the same state-of-the-art mitigation technology already used by Cloudflare’s enterprise customers--at no cost. Project Galileo equips politically and artistically important organizations and journalists with powerful tools to defend themselves against attacks that would otherwise censor their work.

Additionally, in 2016, we announced our partnership with Path Forward, a nonprofit organization that works with companies to create 18-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. With the lofty goal of shaping the future of the Internet, we’re focused on recruiting the best and the brightest, no matter what.

Cloudflare is a security company. A successful background check is required for employment.

Cloudflare hires the best people based on an evaluation of their abilities and effectiveness.  We don't discriminate against employees on the basis of any other personal characteristic or any classification protected by federal, state or local law.

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