You will enhance systems carrying traffic in Cloudflare's network, focusing on Linux kernel and network hardware integration while collaborating across teams.
Available Locations: London, UK or Lisbon, Portugal
About the role
About the team
The Network Platforms team contributes to Traffic Management functions at Cloudflare. One of the multiple teams responsible for the systems that optimize the flow of traffic into, through, and from Cloudflare's global network.
You would be working on the latest Linux network technologies and low level details of the network protocols. The code written would be running on thousands of servers and will be directly impacting each of the packets crossing the network infrastructure, that directly maps to numerous products and millions of customers. These systems are key to Cloudflare's mission to make the internet faster, safer, and more reliable.
Our team at Cloudflare operates under a "Run What You Build" model. This means we are responsible for the health of our systems and actively participate in our team's on-call rotation as part of our operational duties.
What you'll do
You will build and extend various systems that carry traffic end-to-end on the egress path of Cloudflare network. Starting at the host server linux kernel, with integration towards the network hardware dataplane until the physical Interconnect to an adjacent network. Millions of customers depend on these systems even if not directly visible to them. You'll be solving problems of massive scale and significance, and shaping the future of reliability and performance on the Internet. You will collaborate with engineers across the company, from operations teams to the teams building customer-facing products.
What we are looking for
We are looking for smart, innovative team players that have experience in covering Linux kernel network stack development (particularly with eBPF), complex distributed systems, and understanding of internet protocols and technologies. Particularly, growth-oriented individuals who enjoy being outside of their comfort zones, are comfortable in a fast-paced but sensible work environment and that value and lead with curiosity and empathy.
Role requirements
Skills the role requires, we are happy to help you learn on the job.
About the role
About the team
The Network Platforms team contributes to Traffic Management functions at Cloudflare. One of the multiple teams responsible for the systems that optimize the flow of traffic into, through, and from Cloudflare's global network.
You would be working on the latest Linux network technologies and low level details of the network protocols. The code written would be running on thousands of servers and will be directly impacting each of the packets crossing the network infrastructure, that directly maps to numerous products and millions of customers. These systems are key to Cloudflare's mission to make the internet faster, safer, and more reliable.
Our team at Cloudflare operates under a "Run What You Build" model. This means we are responsible for the health of our systems and actively participate in our team's on-call rotation as part of our operational duties.
What you'll do
You will build and extend various systems that carry traffic end-to-end on the egress path of Cloudflare network. Starting at the host server linux kernel, with integration towards the network hardware dataplane until the physical Interconnect to an adjacent network. Millions of customers depend on these systems even if not directly visible to them. You'll be solving problems of massive scale and significance, and shaping the future of reliability and performance on the Internet. You will collaborate with engineers across the company, from operations teams to the teams building customer-facing products.
What we are looking for
We are looking for smart, innovative team players that have experience in covering Linux kernel network stack development (particularly with eBPF), complex distributed systems, and understanding of internet protocols and technologies. Particularly, growth-oriented individuals who enjoy being outside of their comfort zones, are comfortable in a fast-paced but sensible work environment and that value and lead with curiosity and empathy.
Role requirements
- Systems-level programming experience in Go, Python, Rust, C, or C++
- A solid grasp of BGP and internet routing.
- Relish opportunities to dive into new technologies, and a demonstrated ability to do so
- Experience in implementing, deploying, and debugging mission-critical distributed systems
- Strong collaboration and communication skills.
Skills the role requires, we are happy to help you learn on the job.
- Familiarity vendor switching SDKs
- Familiarity with SR-MPLS and sFlow, BGP-LS & PCE protocols
- Experience writing packet-processing software (eg, eBPF at TC or XDP, DPDK)
- Experience participating in an on-call rotation.
Top Skills
Bgp
Bgp-Ls
C
C++
Dpdk
Ebpf
Go
Linux
Pce
Python
Rust
Sflow
Sr-Mpls
Cloudflare Denver, Colorado, USA Office
Denver, Colorado, United States, 80014
Similar Jobs at Cloudflare
Cloud • Information Technology • Security • Software • Cybersecurity
The Network Engineer will manage Cloudflare's network operations, ensuring technical support, network monitoring, and documentation, while collaborating with technical teams.
Top Skills:
BashBgpCloudflareCwdmDwdmEosIos-XrJunosLinuxNx-OsOsi-ModelPythonSonic
Cloud • Information Technology • Security • Software • Cybersecurity
Drive the strategy and roadmap for Cloudflare Realtime, lead product features from ideation through launch, focus on developer needs and experiences, and collaborate with multiple teams.
Top Skills:
SdksSfusTurn ServersWebrtcWebsockets
Cloud • Information Technology • Security • Software • Cybersecurity
As an Engineering Manager, you will lead and mentor a team of Software Engineers, manage production services, and collaborate with Product Managers to achieve team objectives.
Top Skills:
CC++Cdn NetworksGoHTTPLayer 3 NetworkingLayer 4 NetworkingPythonRustTls
What you need to know about the Colorado Tech Scene
With a business-friendly climate and research universities like CU Boulder and Colorado State, Colorado has made a name for itself as a startup ecosystem. The state boasts a skilled workforce and high quality of life thanks to its affordable housing, vibrant cultural scene and unparalleled opportunities for outdoor recreation. Colorado is also home to the National Renewable Energy Laboratory, helping cement its status as a hub for renewable energy innovation.
Key Facts About Colorado Tech
- Number of Tech Workers: 260,000; 8.5% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Lockheed Martin, Century Link, Comcast, BAE Systems, Level 3
- Key Industries: Software, artificial intelligence, aerospace, e-commerce, fintech, healthtech
- Funding Landscape: $4.9 billion in VC funding in 2024 (Pitchbook)
- Notable Investors: Access Venture Partners, Ridgeline Ventures, Techstars, Blackhorn Ventures
- Research Centers and Universities: Colorado School of Mines, University of Colorado Boulder, University of Denver, Colorado State University, Mesa Laboratory, Space Science Institute, National Center for Atmospheric Research, National Renewable Energy Laboratory, Gottlieb Institute

