Uncubed
           

Software Engineer (Firewall)

Cloudflare, London, UK

Help us build a better Internet


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, and ranked among the World's 10 Most Innovative Enterprise 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!

What you'll do

You will work as part of the Firewall engineering team in London building, running and improving the operational resilience of the system which protects our customers from an average of 44 billion cyber threats per day.

You will work using Go, Rust, Lua, Kafka, ClickHouse and PostgreSQL to build and run:

  • APIs to allow customers to configure firewall protections for their zone
  • the engine that applies these protections and runs on our edge platform around the world
  • our analytics pipeline which is the data source for building machine learning models, and which shows customers the attacks they’re being protected against

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 code will impact upwards of 2.8 billion people/month. Your work will focus on building robust, secure and high performance distributed systems. We are a small engineering team operating at 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 and experience:

We do not require you to have all of these!

  • Building and operating an enterprise scale distributed system
  • Engineering software systems for reliability
  • 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
  • Working as part of an agile software development team
  • Understand how the internet works at a protocol level
  • 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

As mentioned, we work with languages such as Lua, Go, Rust and Python. We are looking for engineers willing to learn and grow quickly in a fast paced environment. We also use: Nginx, Salt, PostgreSQL, Redis, Docker, Prometheus, Mesos / Marathon, Kubernetes.

A degree is not required for this position.

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.

Project Athenian: 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.

1.1.1.1: We released 1.1.1.1 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 [email protected] or via mail at 101 Townsend St. San Francisco, CA 94107.

About Cloudflare

About us

Cloudflare is the simplest way to make websites faster, safer and smarter. Millions of websites have signed up for our service, including large enterprises, major consumer destinations, and government agencies. With offices in San Francisco and London, Cloudflare operates a highly-available global network that has security measures built into every layer and regularly clocks in lightning-fast speeds.

We're on a mission to build a better web - and we need smart, talented people to join our team. Our team works on the forefront of leading technologies including nginx, Go and Lua programming languages. We're a strong supporter of the open source community and regularly share our technology learnings at https://blog.cloudflare.com.

Want to learn more about Cloudflare? Visit Cloudflare's website.