Systems Reliability Engineer (Mandarin Speaking)

Cloudflare, London, United Kingdom

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, 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

Sytems Reliability Engineering, IT Technical Operation’s mission is to maintain operational stability across all of the things we do at Cloudflare, by running a stable network, building a stable platform to run our applications, collaborating with Engineering to release stable code. We work on systems that support 10% of Internet requests daily, with twice daily code pushes. Ready for a challenge?

About the Role

At Cloudflare, our globally distributed network is core to what we do. Our Systems Reliability Engineering (SRE) team is responsible for making sure that our network is running smoothly today and that we are prepared for our growth tomorrow. We are looking for a talented Systems Reliability Engineer fluent in Mandarin to join the team. In this role, you will get exposure to running and building a globally distributed network. You will monitor systems and application performance. You will build tools to constantly improve availability, performance, uptime and response times. You will support our current systems by participating in an on-call rotation. The ideal candidate understands how the web works and has a strong knowledge of DNS, linux, SSL, bash and python. This is a great opportunity to be part of a small team building and running a high growth network. 


  • 2 years of relevant work experience

  • Linux systems administration

  • Scripting experience including Shell, Python, PHP

  • Familiarity with web environments including HTTP, SSL, DNS, SQL

  • Network fundamentals DHCP, ARP, subnetting, routing, firewall

Preferred experience

  • Experience with Linux Kernel and packaging

  • Performance analysis and debugging with tools like  perf, sar, strace, dtrace

  • Configuration management systems such as Saltstack

  • Load balancing and reverse proxy technologies such as Nginx

  • Three or more years experience in Python or PHP

  • SQL databases (Postgres)

  • Time series databases (OpenTSDB, graphite)

  • Key/Value stores (Redis, KyotoTycoon)

  • ​​​Internetworking and BGP

Bonus Points

  • Experience with network programming in C, C++ or Go

  • Experience with rapid release engineering

  • Experience working in a 24/7/365 service environment

  • Networking or routing experience

Tools that we use

  • nginx

  • salt

  • python

  • php

  • postgres

  • redis

  • docker

  • nagios

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 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.

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.