Senior Security Engineer - Detection Engineering

What You'll Do: Develop detections and analytics to identify threats across cloud, container, corporate, and edge environments Lead security investigations by analyzing complex log sources and telemetry to determine root cause Build AI agents and automations to accelerate detection development, triage, and incident response workflows Research, evaluate, implement, and maintain security tools including EDR, SOAR, and SIEM solutions Conduct threat hunts to discover unknown malicious activity and participate in on-call rotations What You NeedDirect experience integrating AI tools, LLMs, and automated agents into security operations workflows Experience developing and tuning detections using detections-as-code with version control and CI/CD Proven track record leading complex security incident investigations with expertise in log analysis and forensic artifact collection Strong coding skills in Python or another general-purpose language for building automations In-depth knowledge of AWS or GCP, Linux environments, containers like Kubernetes, and their native security tooling Solid understanding of attacker tactics and techniques with threat hunting or threat modeling experience

Nice to Have: Familiarity with content delivery networks (CDN), edge cloud platforms, or Fastly products and services Experience designing and maintaining scalable ETL processes and data pipelines for ingesting and normalizing security telemetry Experience deploying AI agents in production to detect threats, enrich alerts, and automate response $167,790-$201,348 annually. Eligible to participate in Fastly's equity and discretionary bonus programs. Benefits include medical, dental, and vision insurance; family planning and mental health support; life, disability, and accident insurance; flexible vacation policy; up to 18 days accrued paid sick leave; 401(k) with company match; Employee Stock Purchase Program; 12 paid local holidays and 12 paid company wellness days.