Software Engineer, Client-Desktop & Mobile

Available Locations: Remote US or Canada (Alberta, British Columbia, Ontario or Quebec), Germany, Lisbon, Portugal, London, UK
What you'll do
We're looking for a Mid-level Software Engineer to join our Zero Trust team. You will be working on the cross-platform app and lower-level implementation of our Zero Trust clients, 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 use cross-platform frameworks (Kotlin Multiplatform, Flutter, React Native, Tauri, etc.) along with platform-native languages & APIs to implement responsive and 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'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 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, firewalls, TCP/IP, UDP, DNS, QUIC, H/3, proxying, etc.). You will also have to interact with other languages, such as Swift, Kotlin, C#, C, Java and Rust.
As a Mid or Senior Software Engineer, you will be expected to make significant contributions to the design and implementation of major development projects, working closely with our product managers 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.
Examples of desirable skills, knowledge, and experience. (Even if you don't have all of these we welcome you to apply!)

• Experience with cross-platform programming (Kotlin Multiplatform, Flutter, React Native, Tauri, etc.) and good familiarity and understanding of user-interface and core OS concepts of one or more platforms (macOS, Windows, Linux, iOS, Android)
• Great experience successfully using different typed programming languages, such as Swift, Kotlin, C#, as well as lower-level languages, such as Rust, C, C++
• Very comfortable writing multithreaded, asynchronous code
• Experience with lower level networking concepts & protocols (TCP/IP, UDP, DNS, QUIC, H/3, proxying, etc.) and an understanding of security concepts, such as VPNs, PKI, firewalls, etc.
• Strong experience with debugging, both at the application level and network-related problems
• 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)
• Empathetic, proactive, and constructive communication skills, verbal and written

Compensation
Compensation may be adjusted depending on work location.

• For Colorado-based hires: Estimated annual salary of $137,000 - $167,000
• For New York City, Washington, and California (excluding Bay Area) based hires: Estimated annual salary of $154,000 - $188,000
• For Bay Area-based hires: Estimated annual salary of $162,000 - $198,000

Equity
This role is eligible to participate in Cloudflare's equity plan.
Benefits
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.
Health & Welfare Benefits

• 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

Financial Benefits

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

Time Off

• Flexible paid time off covering vacation and sick leave
• Leave programs, including parental, pregnancy health, medical, and bereavement leave