Systems Engineer, Tunnel

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, Lisbon, London
Hiring will be focused on those residing within the greater Austin, TX, London, UK, & Lisbon, Portugal metro areas. It will be a hybrid role, with the expectation of 2 days per week in the office.
We're hiring Software Engineers at all levels. This is a single pipeline position.
Role Summary:
As a
Software Engineer
on the Cloudflare Tunnel team, you will be a key contributor to building and maintaining a product that securely connects any machine to the Cloudflare network. You will be responsible for building systems across our high-performance global edge network and in our centralized microservice cluster. In this role, you will work on the design, capacity planning, development, maintenance and enhancement of features that make our Tunnel and Zero Trust products, such as Cloudflared, WARP Connector and Zero Trust Network.

You will join a team of bright, hard-working, and supportive engineers who are passionate about their craft, and you will be comfortable operating in a fast-paced but sane work environment.

Role Responsibilities

• Design, implement, and maintain the software systems that comprise Cloudflare Tunnel, including the cross-platform, open-source client and a high-performance service on Cloudflare's edge network.
• Participate in all stages of the software development lifecycle, from designing and documenting systems to writing code, automated tests, and monitoring production deployments.
• Collaborate with internal teams, including security, network engineering, SRE, and product management, to design scalable solutions to difficult technical problems.
• Review work from your peers throughout all stages of the development lifecycle to ensure high-quality, maintainable code.
• Mentor team members and work with support teams to ensure customer delight and bring out the best in everyone.
• Debug issues in complex systems and contribute to the maintenance and improvement of operational health.
• Work with a wide range of technologies and programming languages, including Go, Rust, and Typescript, as well as various databases (SQL and No-SQL), Docker, and Kubernetes.

Role Requirements

• 3+ years of experience in backend software development with a focus on building secure and highly available distributed systems.
• Strong programming skills in Go, Rust, C++, or a similar systems-level language.
• Knowledge of modern Unix/Linux development and runtime environments.
• Grasp of networking protocols in Layers 3-7 of the OSI Model and experience with network programming.
• Familiarity with microservices and APIs, including RESTful design.
• Basic understanding of software security and encryption principles.
• Ability to debug and troubleshoot issues in complex distributed systems.
• Experience with monitoring and logging tools like Prometheus and Grafana.
• Experience with containerization and orchestration technologies, such as Docker and Kubernetes.
• Strong interpersonal and communication skills, demonstrating empathy, teamwork and a sense of ownership.

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
: Since 2014, we've equipped more than 2,400 journalism and civil society organizations in 111 countries 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.

Athenian Project
: In 2017, we created the 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. Since the project, we've provided services to more than 425 local government election websites in 33 states.

1.1.1.1
: We released 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 commitment 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

This position may require access to information protected under U.S. export control laws, including the U.S. Export Administration Regulations. Please note that any offer of employment may be conditioned on your authorization to receive software or technology controlled under these U.S. export laws without sponsorship for an export license.

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 or via mail at 101 Townsend St. San Francisco, CA 94107.