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CyberSN

Senior Security Engineer

CyberSN, South San Francisco, California, us, 94083

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Senior Threat Detection Engineer – Contract to Hire (Remote, U.S.) We’re looking for a

Security Detection Engineer

who will be responsible for:

Improving alerting and monitoring coverage; reducing noise and increasing signal fidelity.

Advising on proactive security measures beyond standard policies and controls.

Conducting hands‑on threat hunting and investigating potential threats, including dark‑web intelligence.

Managing and optimizing the SIEM (SumoLogic).

Building and customizing advanced queries, dashboards, and behavior‑based risk scoring.

Requirements:

5+ years of security experience, with ideally 2–3 years focused on security operations or monitoring.

Deep understanding of enterprise IT environments, systems, and user access processes.

Hands‑on experience with enterprise SIEM Sumologic, with ability to build dashboards, create custom queries, and manage detections across multiple systems.

Experience analyzing and improving alerting, reducing noise, and increasing signal fidelity.

Familiarity with Infrastructure as Code (IaC) concepts; able to navigate IaC configurations.

Background in SecOps, threat detection, or hunting preferred.

Some Python scripting or programming experience.

Understanding of cloud security concepts and secure system design.

Knowledge of threat frameworks (e.g., MITRE ATT&CK) and attacker techniques.

Must be a U.S. Citizen or Green Card holder.

Please Note:

This role is only open to U.S. Citizens and Green Card holders. No visa sponsorship is available and we do not accept C2C arrangements.

About CyberSN:

CyberSN is the leading cybersecurity jobs and career marketplace dedicated to helping professionals find roles they love and assisting companies in building strong, diverse teams. Our online matching platform and full‑service recruitment solutions maximize career and team success.

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