Software Engineer, KV in London

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.

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: Lisbon or London

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.

About the Team: This team focuses on the design and operation of Cloudflare Workers KV, a global low‑latency key‑value data store for the Supercloud.

What you'll do: In this role, you'll help design and build Workers KV, a global low‑latency key‑value data store for the Supercloud. You'll be part of a top‑notch engineering team keeping KV running smoothly at global scale while implementing new features, ensuring reliability, and improving performance. You will own your code from inception to release, delivering solutions at all layers of the software stack to empower Cloudflare customers. On any given day, you might write a design model text that outlines how you plan to solve a specific problem, modify how KV processes and stores data, or fix a bug in how our user experience renders. You can expect to interact with a variety of technology stack including, but not limited to, TypeScript, Go, Rust, and C++.

Examples of desirable skills, knowledge and experience:

• 2+ years of experience writing high volume production software
• Interest in (and love for) distributed systems and data
• Eagerness to learn and share knowledge
• Excellent oral and written communication skills, especially concisely documenting complex concepts
• Understanding of security issues and responsibilities
• Experience with monitoring, alerting and debugging high volume production systems
• Experience with a continuous integration workflow and using source control (we use git)
• Fluent in analysis of data sets such as logs
• Designing and building APIs

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.

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.

Equal Employment Opportunity Statement: 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.

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.

Apply for this job: We will review your application and, if you are a suitable candidate, we’ll contact you in the next few days.