Onsite Network Security Analyst II — SIEM/EDR Defender

Serigor Inc.; Austin (TX); On-site; USD 90,000 - 130,000; Part time

Job summary

Serigor Inc. seeks a Network Security Analyst II for an onsite, 10-month engagement in Austin, TX. The role focuses on monitoring, detecting, and responding to security events across on-premises, cloud, and endpoint environments, with emphasis on SIEM, SOAR, and EDR capabilities.

The ideal candidate will have hands-on experience with SIEM platforms, network security concepts, and incident response, delivering clear documentation and leadership-ready summaries to stakeholders.

Qualifications

• Bachelor's degree in cybersecurity or related field.
• Hands-on experience with SIEM, SOAR, EDR, and network security.
• Strong knowledge of security frameworks such as NIST, CIS Controls.

Responsibilities

• Monitor security alerts, logs, network events, and endpoint telemetry.
• Analyze suspicious activity and determine scope, impact, and response actions.
• Perform incident triage, investigation, escalation, and containment coordination.
• Develop and tune detection rules, dashboards, alerts, and playbooks.
• Support threat hunting using KQL, SPL, and investigative techniques.
• Document findings and communicate with security leadership and stakeholders.

Skills

SIEM

SOAR

EDR

XDR

Incident response

KQL

SPL

Threat hunting

Security monitoring

Network security

Education

Bachelor's degree in cybersecurity

Tools

Microsoft Sentinel

Splunk

EDR tools

Job description

Serigor Inc. seeks a Network Security Analyst II for an onsite, 10-month engagement in Austin, TX. The role focuses on monitoring, detecting, and responding to security events across on-premises, cloud, and endpoint environments, with emphasis on SIEM, SOAR, and EDR capabilities.

The ideal candidate will have hands-on experience with SIEM platforms, network security concepts, and incident response, delivering clear documentation and leadership-ready summaries to stakeholders.