Role Summary
We're looking for experienced engineers to help us build the next-generation proxy that powers a quarter of the Internet's traffic. This role is for those who bring deep expertise in HTTP, transport protocols, or congestion control, and are excited to apply that knowledge to one of the most technically challenging infrastructure projects in the industry.
This is your opportunity to lead technical direction in a team that doesn't just use protocols - we help define them, working closely with the IETF and open-source communities on QUIC, MASQUE, and emerging standards like ECH.
Role Responsibilities
- Design and build our next-gen Rust-based proxy architecture
- Lead improvements in performance, reliability, and observability at global scale
- Bring expertise in congestion control, transport behavior, or HTTP internals to influence product and architectural decisions
- Shape protocol evolution and represent Cloudflare in the standards community
- Mentor engineers and help grow deep protocol expertise across the team
Role Requirements (Must-Have Skills)
- Proven strong ability and experience in systems or network programming (Rust, C, etc.)
- Knowledge of web server implementations (such as NGINX)
- Deep understanding of HTTP/2, HTTP/3, QUIC, congestion control and transport-layer protocols
- Proven ability to scale systems under high throughput and low latency demands
- Experience driving architecture or protocol-level change in production systems
- Bonus: contributions to open standards or open source projects
Nice-to-Have Skills
- Cryptography experience
Top Skills
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.
Gallery
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.'
