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 at Cloudflare. Come join us!

Available Locations: Austin TX, Denver CO

About the role

We’re looking for a Senior Software Engineer to join our Cloudflare One Client team. You will be working on the cross-platform app and lower-level implementation of our Cloudflare One Client Desktop and Mobile Apps, which protects devices by securely and privately sending traffic from those devices to Cloudflare’s global network, which can apply advanced filtering and Cloudflare One policies.

What you'll do

In your role, you will use cross-platform frameworks along with platform-native languages & APIs to implement user-friendly apps that run on desktop and mobile platforms. You will also use Rust alongside platform-native languages and APIs to implement high-performance networking code for both our mobile and desktop apps.

You will be most successful in this role if you have a good understanding of user-interface programming, the intricacies of different platforms (mobile and desktop), experience working on multi-platform code, a decent understanding of lower-level operating system concepts (virtual memory, multi-threading, process lifecycle, etc.) and networking concepts & protocols (VPNs, TCP/IP, etc.). You will also have to interact with other languages, such as Flutter, Swift, Java, Kotlin, C#, Rust, C++, and C. You’ll be expected to improve the code quality and to build solid, testable, and well-documented foundations.

As a Senior Software Engineer, you will be expected to lead the design and implementation of major development projects, working closely with our product managers, designers and other teams to implement customer-impacting features. 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.

Responsibilities

Experience with cross-platform programming (Flutter) and good familiarity and understanding of user-interface and core OS concepts of one or more platform (iOS, Android, macOS, Windows, Linux)
Great experience successfully using different typed programming languages, such as Swift, Kotlin, Java, C#, as well as lower-level languages, such as Rust, C, C++.
Excellent programming skills, with experience writing very high-quality and low-complexity code with thorough documentation.
Strong experience writing easily-testable and thoroughly-tested code (e.g. using dependency injection with the right abstractions)

Senior Software Engineer — Client Mobile and Desktop Apps

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