Principal Engineer - Cloudforce OneActive
The opportunity
Cloudflare is a system spanning the globe, on a mission to make the internet better, safer, and more powerful every day. We are looking for a Principal Engineer who is equal parts architect, threat analyst, and disruptor — someone who doesn't just build systems but fundamentally…
What you'll do
Drive architectural direction and technical strategy across Cloudforce One: engineering, spanning services that run in Kubernetes, on the edge (Workers, D1), and across Cloudflare's global network.
Identify and dismantle technical bottlenecks, legacy patterns, and: architectural debt that slow down threat detection and abuse response — then replace them with systems that are faster, more reliable, and more elegant.
Design and build critical data pipelines and services to collect, enrich,: analyze, and expose threat intelligence and abuse signals at massive scale, helping identify Tactics, Techniques, and Procedures (TTPs) and Indicators of Compromise (IOCs).
Serve as a technical force multiplier across multiple concurrent projects —: you will context-switch between threat intelligence platforms, abuse detection systems, legal response tooling, and customer-facing security products as priorities demand.
Bring a threat-informed perspective to engineering decisions: understand how adversaries adapt, how detection rules degrade, and how to build systems that stay ahead of evolving attack techniques.
Collaborate with Threat Intelligence researchers, Trust & Safety analysts,: Product, Legal, and other engineering teams to translate complex security and compliance requirements into scalable, production-grade solutions.
What they're looking for
- Mentor and elevate the engineering talent around you: set the bar for code quality, system design, operational rigor, and security-first thinking across both organizations.
- Develop and champion agentic AI workflows and AI-assisted development: practices that accelerate threat hunting, detection engineering, and abuse investigation.
- Own the operational excellence of the systems you touch, including: participation in on-call rotations and incident response.
