Description
Cloudflare is seeking a Principal Engineer to join its Cloudforce One team, responsible for identifying and disrupting cyber threats. The successful candidate will be an expert in distributed systems architecture and threat analysis, with a deep understanding of how threat actors operate.
The Cloudforce One team works closely with external organizations and internal Cloudflare teams to develop operational tradecraft and expand threat intelligence sources. They analyze vast amounts of data to synthesize findings into actionable threat intelligence, protecting customers from cyber threats.
As a Principal Engineer, you will 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. You will identify and dismantle technical bottlenecks, legacy patterns, and architectural debt that slow down threat detection and abuse response.
Key responsibilities include:
- Designing and building critical data pipelines and services to collect, enrich, analyze, and expose threat intelligence and abuse signals at massive scale.
- Serving as a technical force multiplier across multiple concurrent projects, context-switching between threat intelligence platforms, abuse detection systems, legal response tooling, and customer-facing security products.
- Bringing a threat-informed perspective to engineering decisions, understanding how adversaries adapt and how to build systems that stay ahead of evolving attack techniques.
- Collaborating 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.
- Mentoring and elevating the engineering talent around you, setting the bar for code quality, system design, operational rigor, and security-first thinking.
Requirements:
- 15+ years of cyber security experience with an emphasis on building systems to present adversarial trends and techniques.
- 10+ years of experience building and operating large-scale distributed systems in production.
- Deep, hands-on proficiency in Go and/or TypeScript, with production experience deploying services in Kubernetes and on edge computing platforms.
- Subject matter expertise in threat intelligence, adversarial analysis, or detection engineering.
Benefits:
- Health & Welfare Benefits, including Medical/Rx Insurance, Dental Insurance, Vision Insurance, Flexible Spending Accounts, and Commuter Spending Accounts.
- Financial Benefits, including Short and Long Term Disability Insurance, Life & Accident Insurance, 401(k) Retirement Savings Plan, and Employee Stock Participation Plan.
- Time Off, including flexible paid time off, leave programs, and global travel medical insurance.