Systems Engineer — Behavioral Analytics & Risk

Cloudflare, Inc.; Austin (TX); On-site; USD 136,000 - 187,000; Full time

Job summary

Cloudflare’s UEBA team is seeking a Systems Engineer to build and operate production services for behavioral analytics. You will implement detections for unusual DNS activity and data movement, helping to refine risk scores and investigations.

You will own projects from design to rollout, collaborating with Product, and engineers across Access, Gateway, Analytics, and Logs to deliver end-to-end functionality and reliable systems. This role is based in Austin, TX.

Qualifications

• 3+ years of professional experience building, testing, and operating backend or distributed systems in production.
• Strong proficiency in at least one systems programming language (Go, Rust, C/C++) with a track record of writing clean, maintainable code.
• 3+ years of practical experience with databases and data-intensive services (PostgreSQL, ClickHouse, or similar).
• Experience reasoning about event-driven systems: messaging, state, failure recovery, and safe changes to live consumers.
• Clear written and verbal communication; ability to work through technical decisions with product and engineering partners.
• Experience using metrics, logs, traces, profiling, and experiments to understand production behavior.
• Bring strong opinions and the ability to revise views when data proves otherwise.

Responsibilities

• Build behavioral detections across signals such as Access, Gateway, DNS, device posture, and data protection.
• Make risk understandable by connecting detection output to event history and investigations.
• Design, deploy, and maintain robust distributed systems with high availability and low latency.
• Collaborate with Product and engineers across Access, Gateway, Analytics, Logs, and other teams.
• Ensure reliability through architecture reviews, capacity planning, and proactive monitoring.

Skills

Backend systems

Distributed systems

Go/Rust/C/C++

PostgreSQL/ClickHouse

Event-driven systems

Communication

Metrics/Logs/Traces

Data analytics

Job description

Cloudflare’s UEBA team is seeking a Systems Engineer to build and operate production services for behavioral analytics. You will implement detections for unusual DNS activity and data movement, helping to refine risk scores and investigations.

You will own projects from design to rollout, collaborating with Product, and engineers across Access, Gateway, Analytics, and Logs to deliver end-to-end functionality and reliable systems. This role is based in Austin, TX.