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! Software Engineer, Privacy Team

Available Locations: London, Lisbon or Austin

About the department

Emerging Technologies & Incubation (ETI) is where new and bold products are built and released within Cloudflare. Rather than being constrained by the structures which make Cloudflare a massively successful business, we are able to leverage them to deliver entirely new tools and products to our customers. Cloudflare's edge and network make it possible to solve problems at massive scale and efficiency which would be impossible for almost any other organization.

What you'll do

Here at Cloudflare, privacy is core to what we do. This includes giving users more control over their data, working with browser and operating system vendors to reduce cross-site tracking, and/or building first-party, privacy-focused products for customers ourselves, we're increasingly working to improve the default state of privacy and security on the web.

On the job, you will be part of the team building our globally deployed, production-grade privacy proxy platform - the technology that powers Private Relay and Microsoft Edge Secure Network. You will also have the opportunity to work on the cutting edge of privacy Internet standards. We're looking for someone excited about building - and helping us brainstorm - the future of privacy infrastructure at Cloudflare.

Key Responsibilities

Lead and contribute hands-on to the development, deployment and operation of industry-standard, secure, and production-ready code. Collaborate closely with engineers, researchers, product managers, designers, and other stakeholders to design and deliver cutting-edge privacy solutions. Advocate for end-user privacy in the applications and services you build, ensuring a high degree of reliability and stability. Communicate effectively within the team and across departments to align on project goals and deliverables. Drive initiatives independently, from scoping through to execution and delivery. Document your work thoroughly to maintain transparency and knowledge sharing within the team. Perform peer reviews to ensure code meets our coding standards. Mentor junior and mid-level engineers.

Examples of desirable skills, knowledge and experience:

5+ years of experience in building high-performance distributed systems or privacy-focused solutions. Strong foundation in computer science and software engineering, with expertise in software design and distributed systems. In-depth understanding of Internet technologies such as TCP, UDP, DNS, HTTP/S and tunneling. The ability to understand and describe complex network flows easily. Promote and encourage use of ticketing systems, process and source code management, such as JIRA, defined SDLC and Git. Proven ability to implement tools, processes, internal instrumentation, and methodologies to resolve technical challenges. Ability to work independently on complex projects and deliver high-quality results. A strong commitment to documenting your work as meticulously as you write your code.

Bonus Points:

Experience contributing to major browsers, web frameworks, proxies, or distributed systems projects. Prior experience in the CDN industry or writing code for a bare-metal backend cloud provider. Rust experience, including async Rust, is a significant advantage, but we are open to those who want to learn it. Contributions to open-source projects. Demonstrated ability to improve products/services by debugging and resolving network-level and application-level performance bottlenecks. Understanding of cryptographic concepts such as public-key encryption, digital signatures, and hash functions. Interest in collaborating on new Internet standards focused on privacy and security. Experience working with Go and Salt. Familiarity with technologies such as Oblivious DNS over HTTP (ODoH) and Oblivious HTTP (OHTTP).

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 : We equip politically and artistically important organizations and journalists 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 : We created 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.

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!

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 hr@cloudflare.com or via mail at 101 Townsend St. San Francisco, CA 94107.

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