Senior Information Security Incident Response Analyst

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Your day at NTT DATA The Senior Information Security Incident Response Analyst leads complex incident investigations and digital forensic analysis for clients across diverse environments. This role focuses on determining root cause and impact, guiding clients through containment and remediation, and clearly communicating technical findings to both technical and executive stakeholders.

The analyst serves as a senior escalation point, mentors and trains junior responders, and contributes to maturing team processes, workflows, and response capabilities. They collaborate with internal teams and external partners while maintaining strong, professional client engagement throughout each incident.

Key Responsibilities

• Investigates security incidents for clients by performing host, disk, memory, network, cloud, and mobile forensics.

• Conducts detailed artifact analysis across Windows, Linux, and macOS systems and reconstructs event timelines using disk images, memory captures, network data, and cloud logs.

• Guides clients through containment, eradication, and recovery activities, providing clear technical recommendations and communications.

• Acts as a senior escalation point for complex incidents and supports the development and mentoring of junior analysts.

• Participates in an on‑call rotation to support urgent, time‑sensitive incident response needs.

• Completes internal and client project work such as tabletop exercises, IR readiness engagements, environment hardening reviews, and forensic assessments.

• Identifies gaps and weaknesses in client environments and provides recommendations to reduce risk and strengthen posture.