Security Engineer

• Serve as a Tier 3 escalation point for active security incidents, including business email compromise (BEC), adversary-in-the-middle (AiTM), ransomware, and account compromise.
• Lead technical analysis during incident response and war room events, including log review, IOC hunting, and lateral movement tracing.
• Execute containment and eradication actions such as endpoint isolation, session revocation, and credential resets.
• Coordinate with SOC teams and vendor threat intelligence teams during active investigations and containment efforts.
• Produce accurate incident timelines, technical findings, and evidence packages for vCISO review and client-facing follow-up.
• Operate daily within the gShield toolstack, including platforms such as Huntress, Microsoft Defender for Endpoint (MDE), Cyrisma, DNSFilter, SIEM, and related security technologies.
• Perform alert triage, risk identification, scan issue resolution, and follow-through on issues surfaced by security tools.
• Support SIEM operations including query development, alert review, and rule tuning.
• Assist in tuning detection logic, scan settings, and platform effectiveness in coordination with Centralized Services and security leadership.
• Monitor for security gaps, suspicious activity, and control weaknesses across managed environments.
• Execute technical remediation items identified through MRMMs, preventative actions, vulnerability reviews, and security recommendations.
• Support gShield deliverables through technical validation, evidence gathering, scan review, and vulnerability analysis.
• Act as a quality assurance resource for client onboarding into the gShield toolstack, while execution remains with onboarding and Centralized Services teams.
• Assist with client hardening efforts and follow-through on security improvement actions across managed environments.
• Support remediation of internal GXA security backlog items, including POA&M-related work.
• Assist with rollout and support of phishing-resistant MFA, passkeys, and other internal security initiatives.
• Contribute to security engineering efforts related to Intune, Defender, ThreatLocker, AppLocker, and RMM scripting.
• Help improve internal security controls, tool effectiveness, and technical enforcement mechanisms.
• Write and maintain security engineering SOPs, runbooks, detection playbooks, and response procedures related to gShield operations and incident response.
• Document technical findings, repeatable procedures, and lessons learned from incidents and tool operations.
• Collaborate with security leadership and technical stakeholders on process improvements, skill development, and automation opportunities.
• Contribute technical depth to broader security documentation where needed, while recognizing that ownership of policy, standards, and governance documentation remains with security leadership and related functions.

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Senior Security Engineer