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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # System Engineer, Behavioral Analysis - **Company:** CloudFlare - **Location:** Austin, TX, United States - **Experience:** Experienced - **Salary:** $101,370.0 - $152,054.0 - **Contract:** Temporary contract - **Skills:** Clean Code Principles, Microsoft Access, Application Programming Interfaces (APIs), Artificial Intelligence, Data Analysis, Systems Engineering, C++ (Programming Language), Profiling, Databases, Extract Transform Load (ETL), Distributed Systems, Domain Name System (DNS), PostgreSQL, Network Connections, Zero Trust Network Access, System Programming, System Availability, Caching, Backend, Event Driven Architecture, Kubernetes, Low Latency, Cloudflare, Apache Kafka, Vertica, Stream Processing - **Published:** October 16, 2026 - **Apply:** https://www.jofdav.com/jobs/60126354-system-engineer-behavioral-analysis ## About the Role * 3+ years of professional experience building, testing, and operating backend or distributed systems in production. * Strong proficiency in at least one systems programming language (e.g., Go, Rust, C/C++) with a track record of writing clean, maintainable code. * 3+ years of practical experience with databases and data-intensive servicesfor example, PostgreSQL, ClickHouse, or comparable relational or analytical stores. * Experience reasoning about event-driven systems: message delivery, duplicate or late events, state, failure recovery, and safe changes to live consumers or APIs. * Clear written and verbal communication, and an ability to work through technical decisions with product and engineering partners. * Experience using metrics, logs, traces, profiling, and experiments to understand production behavior and validate improvements * Bring strong opinions, clear judgment, and a willingness to revise your view when data, users, or production reality prove otherwise., * Experience with security analytics, fraud or abuse detection, identity, Zero Trust, SASE, or network telemetry. * Familiarity with Kafka or other streaming systems; Kubernetes; and high-volume event processing. * Experience with statistical baselines, anomaly detection, time-windowed aggregation, or evaluating false positives and detection coverage. * Familiarity with DNS, HTTP, authentication events, data-loss-prevention signals, or endpoint-security integrations. * Experience with distributed state, caches, object storage, or safe migration of a legacy production service. ## Description At Cloudflare, were not looking for people who wait for a polished roadmap; were looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If youre the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, youll fit right in., Cloudflare One brings together secure access, network connectivity, and data protection. Our products generate massive amounts of signals about how people and agents access applications, use the network, and handle databut a security practitioner needs more than isolated events. They need to understand what happened, whether it is unusual, why it matters, and what to investigate next. The UEBA (User and Entity Behavior Analytics) team builds the systems behind those answers. We ingest and evaluate Cloudflare One signals, produce high fidelity user-risk events, maintain risk scores, and make that information available to customer-facing experiences and other Cloudflare services. Today, we are focused on expanding our behavioral detections and improving the clarity of the resulting investigations and integrations. As a Systems Engineer, you will build and operate production services in this pipeline. You might implement a detection for an unusual pattern of DNS activity or data movement, improve how events contribute to a users risk score, or make risk-event history easier for customers to investigate. You will own well-defined projects through design, implementation, testing, rollout, and operational follow-through, working with other engineers, Product, and partner teams across Cloudflare., * Build behavioral detections. Turn product requirements and available telemetry into production-ready detections across signals such as Access, Gateway, DNS, device posture, and data protection. Define the data dependencies, evaluation approach, and how you will assess signal quality before release. * Make risk understandable. Help connect detection output to event history, logs, and customer-facing investigations so practitioners can see what triggered a finding and how a users risk changed. * Design & Scale Infrastructure: Architect, deploy, and maintain robust distributed systems, focusing on high availability, low latency, and horizontal scalability. * Collaborate across teams. Collaborate with Product and engineers in Access, Gateway, Analytics and Reporting, Logs, and other data-producing or data-consuming teams to agree on event contracts and deliver end-to-end functionality. * Ensure Reliability. Participate in architecture reviews, capacity planning, and proactive system health monitoring to guarantee maximum uptime and resilience.