1 day ago

Systems Engineer, Spectrum

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 10 hours agoStatus: Live

Job Summary

Own critical L3/L4 dataplane components for Spectrum, Cloudflare’s Layer 4 reverse proxy for arbitrary TCP/UDP traffic. Build and evolve the Spectrum edge dataplane and control plane using Go, integrate with other packet-processing systems, and deliver operational excellence through observability, on-call, incident response, and technical debt reduction. Partner across Packet Processing, Traffic Management, DDoS, DNS, and SRE teams to scale, debug, and improve the next generation of Cloudflare’s non-HTTP traffic platform.

Location: Austin

Workplace: Hybrid

Employment Type: Full time

Job Function: IT Operations (Systems/Network Admin)

Key Responsibilities

•Build and operate the Spectrum edge dataplane: TCP/UDP connection acceptance and forwarding, TLS termination, PROXY protocol, connection accounting, and eBPF integrations.
•Develop the Spectrum control plane: application configuration APIs, provisioning, and global config push to edge machines.
•Drive cross-dataplane integrations, ensuring Spectrum works with Unimog (L4 load balancing), Magic Transit (IP transit), and Argo Smart Routing.
•Deliver operational excellence through analytics pipelines, observability, on-call, incident response, and technical debt reduction.
•Help evolve the Spectrum roadmap as the L4 counterpart to Cloudflare’s HTTP proxy stack.

Key Requirements

•Experience building and shipping large-scale, reliable, highly distributed systems.
•Strong programming experience in Go; willingness to work in Rust.
•Solid understanding of L3 and L4 networking (TCP, UDP, IP, NAT, anycast, packet flows).
•Experience with Linux networking primitives including sockets, eBPF, network namespaces, netfilter/nftables, and tc.
•Experience designing and integrating RESTful APIs and backend systems.

Skills:CommunicationDebuggingOptimizationCollaboration

Languages:English

Tech Stack:GoRustL3L4TCPUDPIPNATAnycastEBPFLinuxSocketsNetwork namespacesNetfilterNftablesTcTLS terminationPROXY protocolRESTful APIsObservability

Company Brief

Cloudflare

Provides a global network and cloud platform that delivers security, performance, and reliability services for web applications, APIs, and Internet properties, including CDN, DDoS protection, DNS, and zero-trust security solutions.

Industry: Cybersecurity

Company Size: Enterprise (1,001+ employees)

Revenue: USD 1B+

Growth: Public Company

Valuation: Public Company (Market Cap in USD)

Funding: IPO / Publicly Listed

Headquarters: San Francisco, United States

Founded: 2009

Website LinkedIn

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Cloudflare

1 day ago

Systems Engineer, Spectrum

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 10 hours agoStatus: Live

Job Summary

Location: Austin

Workplace: Hybrid

Employment Type: Full time

Job Function: IT Operations (Systems/Network Admin)

Key Responsibilities

•Build and operate the Spectrum edge dataplane: TCP/UDP connection acceptance and forwarding, TLS termination, PROXY protocol, connection accounting, and eBPF integrations.
•Develop the Spectrum control plane: application configuration APIs, provisioning, and global config push to edge machines.
•Drive cross-dataplane integrations, ensuring Spectrum works with Unimog (L4 load balancing), Magic Transit (IP transit), and Argo Smart Routing.
•Deliver operational excellence through analytics pipelines, observability, on-call, incident response, and technical debt reduction.
•Help evolve the Spectrum roadmap as the L4 counterpart to Cloudflare’s HTTP proxy stack.

Key Requirements

•Experience building and shipping large-scale, reliable, highly distributed systems.
•Strong programming experience in Go; willingness to work in Rust.
•Solid understanding of L3 and L4 networking (TCP, UDP, IP, NAT, anycast, packet flows).
•Experience with Linux networking primitives including sockets, eBPF, network namespaces, netfilter/nftables, and tc.
•Experience designing and integrating RESTful APIs and backend systems.

Skills:CommunicationDebuggingOptimizationCollaboration

Languages:English

Tech Stack:GoRustL3L4TCPUDPIPNATAnycastEBPFLinuxSocketsNetwork namespacesNetfilterNftablesTcTLS terminationPROXY protocolRESTful APIsObservability

Company Brief

Cloudflare

Industry: Cybersecurity

Company Size: Enterprise (1,001+ employees)

Revenue: USD 1B+

Growth: Public Company

Valuation: Public Company (Market Cap in USD)

Funding: IPO / Publicly Listed

Headquarters: San Francisco, United States

Founded: 2009

Website LinkedIn