Senior Network Security Analyst: SIEM, EDR & IR Expert

Ampcus Inc; Austin (TX); On-site; USD 110,000 - 160,000; Full time

Job summary

Ampcus Inc. is seeking a Network Security Analyst II in Austin, TX to monitor, detect, investigate, and respond to security events across on‑prem, cloud, and endpoints.

The ideal candidate will have hands‑on experience with SIEM, SOAR, EDR, NDR, and incident response platforms, and will develop detection rules and dashboards. Responsibilities include incident triage, collaboration with cross‑functional teams, and maintaining leadership‑ready security documentation while staying current with

Qualifications

• 7+ years of experience in cybersecurity, network security, security operations, incident response, or related role.
• Hands‑on experience with Microsoft Sentinel including incident management, analytics rules, workbooks, automation, data connectors, and Kusto Query Language (KQL).
• Experience using SIEM for log analysis, alert investigation, dashboarding, correlation searches, and security monitoring.
• Experience with NDR for network traffic analysis, packet/session investigation, threat detection, and incident support.
• Experience with EDR tools including endpoint alert triage, device investigation, advanced hunting, and response actions.
• Knowledge of security frameworks, standards, and regulatory considerations (e.g., NIST, CIS Controls, HIPAA).
• Strong communication and analytical skills.

Responsibilities

• Monitor security alerts, logs, network events, endpoint telemetry, and threat intel feeds.
• Analyze suspicious activity, anomalous network behavior, malware indicators, endpoint detections, and SIEM correlations.
• Perform incident triage, investigation, escalation, containment coordination, and documentation.
• Develop, tune, and maintain detection rules, dashboards, alerts, playbooks, and queries.
• Support threat hunting activities using KQL, SPL, packet analysis, and endpoint telemetry.
• Assist with vulnerability, risk, and control assessments for network security infrastructure.
• Document findings, prepare incident reports, and communicate to security leadership and stakeholders.
• Collaborate with teams to validate security events and implement risk mitigations.
• Maintain awareness of emerging cyber threats and best practices.

Skills

SIEM

SOAR

EDR

NDR

KQL

SPL

Education

Bachelor’s degree in cybersecurity or related field

Tools

Microsoft Sentinel

Job description

Ampcus Inc. is seeking a Network Security Analyst II in Austin, TX to monitor, detect, investigate, and respond to security events across on‑prem, cloud, and endpoints.

The ideal candidate will have hands‑on experience with SIEM, SOAR, EDR, NDR, and incident response platforms, and will develop detection rules and dashboards. Responsibilities include incident triage, collaboration with cross‑functional teams, and maintaining leadership‑ready security documentation while staying current with