CareerPlan

System Engineer, Behavioral Analysis

Austin, TXFull-time$136k2026-09-30 → 2026-11-10
Based in United StatesNo visa sponsorshipU.S. persons only (export control)

Core

Build and operate production services for User and Entity Behavior Analytics (UEBA) to ingest signals, produce high-fidelity user-risk events, and maintain risk scores for Cloudflare One.

Role type

Senior Systems Engineer (Security/UEBA)

Builds

Production behavioral detection systems, risk scoring pipelines, and customer-facing investigation tools for Cloudflare One.

Domain

Cybersecurity, Network Security, Behavioral Analytics

Deliverable

production ML models

Required skills

Systems programming (Go, Rust, C/C++), Database management (PostgreSQL, ClickHouse), Event-driven system design, Distributed systems architecture, Reliability engineering, Technical communication

Preferred skills

Security analytics, Fraud detection, Zero Trust, SASE, Kafka, Kubernetes, Anomaly detection, DNS/HTTP telemetry, Distributed state management

Responsibilities

Build behavioral detections from telemetry; Connect detection output to event history and logs; Architect and scale distributed systems for high availability; Collaborate on event contracts across teams; Ensure system reliability through capacity planning and health monitoring

Seniority

Senior, hands-on IC