Software Engineer, Zero Trust Client

About Us

At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other 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 e join us!

• Austin, TX
• Lisbon, Portugal
• London, United Kingdom

We’re looking for a Software Engineer to join our Zero Trust team. You will be working on the Zero Trust desktop client, which protects corporate devices by securely and privately sending traffic from those devices to Cloudflare’s global network, which can apply advanced web filtering and advanced Zero Trust policies.

In your role, you will predominantly be using Rust alongside platform-native languages & APIs to implement high-performance networking code that runs on multiple desktop platforms. You’ll be expected to improve the code quality and to build solid,
testable, and well-documented foundations. You will be most successful in this role if you have a good understanding of operating system concepts (multi-threading, process lifecycle, network adapters, sockets, etc.) and networking concepts & protocols (VPNs, firewalls, TCP/IP, UDP, DNS, QUIC, H/3, proxying, etc.). You will also have to interact with other languages, such as Dart, Typescript, and Python.

As a Software Engineer, you will be expected to be a voracious learner and fast-paced contributor to the design and implementation of major development projects. You will work on stimulating problems born out of the scale of our deployment, and the stringent quality, performance, and security requirements of our product.

• Excellent programming skills, with experience writing high-quality and low-complexity code with thorough documentation.
• Experience writing easily-testable and thoroughly-tested code (e.g. using dependency injection or mocking with the right abstractions)
• Experience with systems programming and familiarity with core OS concepts of one or more desktop OSes (macOS, Windows, and Linux)
• Experience using lower-level languages, such as Rust, C, C++
• Comfortable writing multithreaded, asynchronous code
• Familiarity with debugging network-related problems, especially on desktop devices
• Empathetic, proactive, and constructive communication skills, verbal and written

This role is eligible to participate in Cloudflare’s equity plan.

Cloudflare offers a complete package of benefits and programs to support you and your family. Our benefits programs can help you pay health care expenses, support caregiving, build capital for the future and make life a little easier and fun! The below is a description of our benefits for employees in the United States, and benefits may vary for employees based outside the U.S.

• Medical/Rx Insurance
• Dental Insurance
• Vision Insurance
• Flexible Spending Accounts
• Commuter Spending Accounts
• Fertility & Family Forming Benefits
• On-demand mental health support and Employee Assistance Program
• Global Travel Medical Insurance

• Short and Long Term Disability Insurance
• Life & Accident Insurance
• 401(k) Retirement Savings Plan
• Employee Stock Participation Plan

• F…