SRE Systems Engineer

1 month agoSeattle, WA / Remote
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

Systems Engineers (SE) are a key part of the Engineering organization. SE’s within the Edge SRE team build tools that enable the SRE team as well as the entire Cloudflare Engineering organization. 

As part of the Cloudflare Engineering organization, SREs are primarily responsible for production reliability. SREs and SEs are based in San Francisco, London, Singapore, Austin, Delaware, and Lisbon and use the global distribution to enable follow the sun coverage which allows work to be focused in business hours in each location. 

Edge SRE project work, which SEs are 100% dedicated to, is organized in primarily four development areas: Platform Engineering, Production Tooling, Hardware Lifecycle and Observability.  

What you'll do

An engineering role at Cloudflare provides an opportunity to address some big challenges, at scale. We believe that with our talented team, we can solve some of the biggest security, reliability and performance problems facing the Internet. Just how big?  

  • We have in excess of 59 Terabits of network transit capacity
  • Our network spans more than 200 cities in over 100 countries, including 14 cities in mainland China.
  • We serve 21 million HTTP requests per second on average, with more than 28 million HTTP requests per second at peak.
  • We consistently do approximately 8.5 million DNS queries per second. That's around 738 billion queries per day, and 22 trillion queries a month. 
  • In Q4’20 Cloudflare blocked an average of 57 billion cyber threats each day. This is 7 billion more (average threats blocked each day) compared to the fourth quarter of 2019. 

We are looking for talented Systems Engineers to build and maintain automated systems and tools to help Cloudflare continue to scale. Our engineers come from a variety of technical backgrounds and have built up their knowledge working in different environments. But the common factors across all of our reliability-focused engineers include a passion for automation, scalability, and operational excellence.  

You will build tools to automate operational tasks, streamline deployment processes and provide a platform for other engineering teams to build upon. You will nurture a passion for an “automate everything” approach that makes systems failure-resistant and ready-to-scale. You will be required to play a key role in system design and demonstrate the ability to bring an idea from design all the way to production.

Many of our Engineers have had the opportunity to work at multiple offices on interim and long-term project assignments. The ideal candidate has a passionate curiosity about how the Internet fundamentally works and has knowledge of Linux and Internet protocols along with strong coding ability in Go, Python and Bash. 

Requisite Skills

  • Advanced software development skills in Go
  • Handle a project from design phase to completion
  • Experience with continuous / rapid release engineering
  • Strong communication skills

Examples of desirable skills, knowledge and experience

  • 5 years of relevant work experience
  • SQL databases (Postgres or MySQL)
  • Time series databases (Prometheus, Grafana, Thanos, Clickhouse)
  • Front end development work experience: Vue or React, Nodejs
  • Containerization (Docker/Kubernetes)
  • Configuration Management (Salt, Chef, Puppet, Ansible)

Bonus Points

  • A background releasing and maintaining code which is installed on millions of devices
  • Salt stack experience
  • Virtual file systems (VFS)

Some technologies we use

  • Go
  • Docker
  • Kubernetes
  • PostgreSQL
  • Prometheus
  • Nginx
  • Salt
  • Python
  • Javascript
  • Consul
  • Nomad


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.

Client-provided location(s): Seattle, WA, USA; Austin, TX, USA
Job ID: 2990610