Senior Software Engineer - ZTC

Posted 2 Days Ago
Be an Early Applicant
3 Locations
Hybrid
66K-83K Annually
Senior level
Cloud • Information Technology • Security • Software • Cybersecurity
Helping Build a Better Internet
The Role
Build and evolve Rust-based connectivity services that connect Cloudflare One and Zero Trust products across Cloudflare’s global network. Develop user-space routing services, improve scalability and reliability, collaborate across teams, and own solutions from design through deployment. The role involves Linux networking, distributed systems, observability, and Cloudflare’s infrastructure and Workers platform.
Summary Generated by Built In
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.
At Cloudflare, we're not looking for people who wait for a polished roadmap; we're looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If you're the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you'll fit right in.
Available Locations: Lisbon, London, Austin
About the team
The Zero Trust Connectivity team builds the hub that connects Cloudflare One and Zero Trust products such as Cloudflare WAN, Cloudflare One Client, Cloudflare Tunnels, Gateway and Workers VPC. Powering this hub is a set of Rust-based services operating on every one of the data-centers that Cloudflare runs. These services route all of Cloudflare One traffic end to end. By leveraging Cloudflare's incredible infrastructure and programming languages such as Rust, this critical service is safe, performant and secure.
As Cloudflare Zero Trust set of features evolves, this team is responsible for evolving these hub services to deliver those new capabilities while guaranteeing scalability and reliability as top priority.
We are a team of engineers who obsess over building reliable services which leverage Cloudflare's unique architecture and global network footprint.
You can read more about what we work on here:
  • https://blog.cloudflare.com/introducing-cloudflare-one/
  • https://blog.cloudflare.com/from-ip-packets-to-http-the-many-faces-of-our-oxy-framework/
  • https://blog.cloudflare.com/workers-vpc-open-beta/

About the role
As a software engineer on the Zero Trust Connectivity team, you will contribute across a wide range of technologies and systems to deliver new solutions that connect Cloudflare One products together. You will build connectivity in a user-space service that can identify and route flows across our global network. This work requires close collaboration with other teams while leveraging powerful frameworks and libraries that power many Cloudflare products. Our technology stack includes Rust, Linux networking, Clickhouse, SaltStack, Prometheus, AI harnesses, and our own Cloudflare Workers platform. We're looking for determined, curious, empathetic engineers to join our team!
Desirable skills, knowledge, and experience
  • Programming experience in Rust
  • Familiar with Layer 3 and Layer 4 Networking
  • Systems-level programming experience in Linux
  • Experience building large-scale, reliable, highly distributed systems
  • Attention to detail and ability to solve complex customer problems
  • Own solutions end-to-end and driving the design, development, and deployment process
  • Able to work across teams and level common, sustainable solutions
  • Creative, open-minded, collaborative problem solver
  • Focus on clarity in written and verbal communication
  • Leveraging AI coding assistants to accelerate development

Compensation
Compensation may be adjusted depending on work location.
  • For Lisbon based hires: Estimated annual salary of €66,000-83,000

Equity
This role is eligible to participate in Cloudflare's equity plan.
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 1.1.1.1 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!
Please note that applicants who progress to the offer stage of the interview process may be asked to attend an in-person interview within one of the Cloudflare Offices or Cloudflare Hubs. More details about this will be available at that stage of the interview process.
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 [email protected] or via mail at 101 Townsend St. San Francisco, CA 94107.

Skills Required

  • Programming experience in Rust
  • Familiarity with Layer 3 and Layer 4 networking
  • Systems-level programming experience in Linux
  • Experience building large-scale, reliable, highly distributed systems
  • Attention to detail and ability to solve complex customer problems
  • Ability to own solutions end-to-end and drive design, development, and deployment
  • Ability to work across teams and develop common, sustainable solutions
  • Creative, open-minded, collaborative problem-solving ability
  • Clear written and verbal communication
  • Experience leveraging AI coding assistants

Cloudflare Compensation & Benefits Highlights

  • Healthcare Strength — Healthcare benefits are described as comprehensive, including medical, dental, vision, mental health support, and fertility/family-forming options. Plan quality is generally well regarded across these core areas.
  • Leave & Time Off Breadth — Time off is positioned as flexible, with take-what-you-need vacation, sick leave, and company holidays. This structure is commonly viewed as a strong part of the package.
  • Parental & Family Support — Parental leave is offered globally and complemented by family-forming benefits. This is frequently cited as a meaningful, high-value element of the benefits.

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The Company
HQ: San Francisco, CA
4,400 Employees
Year Founded: 2010

What We Do

Cloudflare, Inc. (NYSE: NET) is the leading connectivity cloud company on a mission to help build a better Internet. It empowers organizations to make their employees, applications and networks faster and more secure everywhere, while reducing complexity and cost. Cloudflare’s connectivity cloud delivers the most full-featured, unified platform of cloud-native products and developer tools, so any organization can gain the control they need to work, develop, and accelerate their business. Powered by one of the world’s largest and most interconnected networks, Cloudflare blocks billions of threats online for its customers every day. It is trusted by millions of organizations – from the largest brands to entrepreneurs and small businesses to nonprofits, humanitarian groups, and governments across the globe.

Why Work With Us

Cloudflare employees come from all walks of life. We are mission-driven, and our team is energized by a collaborative, creative environment that celebrates our differences and fosters new ways to grow together.

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Cloudflare Offices

Hybrid Workspace

Employees engage in a combination of remote and on-site work.

We are committed to developing a global team that is distributed with a flexible working approach. Doing this equitably and inclusively is essential to our success. Visit our careers site for more on 'How & Where We Work.'

Typical time on-site: Flexible
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Austin, TX
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Champaign, IL
Denver, Colorado
Lisbon, PT
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