Senior Security Engineer, Frontline Intrusion Operations

Google's Mandiant cybersecurity team provides cyber defense, threat intelligence, and incident response services. The Senior Security Engineer will investigate sophisticated intrusion activity, synthesize technical and open-source intelligence, develop adversary intelligence and client-facing reports, automate investigative workflows, and integrate AI-driven tools into security analysis.

Responsibilities:

• Synthesize complex intrusion data, telemetry, and OSINT to map and disrupt sophisticated adversary activities. Orchestrate multiple concurrent investigations, extracting high-fidelity methodologies and behavioral characteristics from technical datasets
• Lead comprehensive lead-exploitation efforts, merging disparate datasets to produce a holistic view of adversary Tactics, Techniques, and Procedures (TTPs). Collaborate across expert teams in high-tempo environments to cluster isolated events into actionable campaign intelligence
• Transform complex investigative findings into curated data models and client-facing reports that provide critical context and strategic attribution
• Drive team efficiency by architecting automated workflows and custom scripting solutions
• Pioneer the integration of AI-driven tools to enhance analysis speed and intelligence accuracy

Requirements:

• Bachelor's degree or equivalent practical experience
• 5 years of experience with security assessments or security design reviews or threat modeling
• 5 years of experience with security engineering, computer and network security and security protocols
• 5 years of experience coding in one or more general purpose languages
• Experience in graph theory, malware analysis, encoding/decoding, netflow and traffic analysis, timeline, log, or email analysis
• Experience in an investigative role, including experience in cyber threat analysis, incident response, or intrusion operations
• Experience in reverse engineering and security analysis
• Experience in network infrastructure, security, and application development