Senior Network Security Analyst: Threat Detection & IR

Apex Systems; Austin (TX); On-site; USD 96,000 - 138,000; Full time

Benefits offered by this job

Medical, dental, vision plans

401K with company match

Health Savings Account (HSA)

Employee Assistance Program (EAP)

Professional development & training

Job summary

Everforth Apex is seeking a Network Security Analyst II to support enterprise security operations across on-premises, cloud, and endpoint environments. You will monitor alerts, investigate incidents, and develop detection rules while coordinating with multiple teams to mitigate risk.

The role requires hands-on SIEM/EDR/NDR experience and strong communication skills. This is a 10-month on-site contract based in North Austin, TX.

Qualifications

• Minimum of seven years of experience in cybersecurity or related security role.
• Hands-on experience with Microsoft Sentinel including incident management and KQL.
• Experience using SIEM for log analysis and alert investigation.
• Experience with NDR for network traffic analysis and incident support.
• Experience with EDR tools for endpoint triage and hunting.
• Strong knowledge of firewalls, IDS/IPS, VPN, and secure network architecture.
• Knowledge of NIST, CIS Controls, HIPAA, and state security requirements.
• Strong communication and collaboration skills.

Responsibilities

• Monitor security alerts, logs, network events, endpoint telemetry, and threat intelligence feeds.
• Analyze suspicious activity, anomalous network behavior, malware indicators, endpoint detections, and SIEM correlation events to determine scope, impact, and required response actions.
• Perform incident triage, investigation, escalation, containment coordination, and documentation in alignment with security operations procedures.
• Develop, tune, and maintain detection rules, dashboards, alerts, playbooks, and queries to improve visibility across network, endpoint, identity, and cloud environments.
• Support threat hunting activities using KQL, SPL, packet/session analysis, endpoint telemetry, and other investigative techniques.
• Assist with vulnerability, risk, and control assessments for network security infrastructure and enterprise information systems.
• Document findings, prepare incident reports, track corrective actions, and communicate technical information to security leadership and business stakeholders.
• Collaborate with network, infrastructure, cloud, endpoint, and application teams to validate security events and implement risk mitigation measures.
• Maintain awareness of emerging cyber threats, attack techniques, indicators of compromise, and security best practices relevant to healthcare and public-sector environments.
• Support compliance, audit, and reporting activities by providing evidence, metrics, and security operations documentation as requested.

Skills

Network security

Incident response

Threat hunting

Security operations

Communication

Tools

Microsoft Sentinel

KQL (Kusto)

EDR tools

NDR

SIEM fundamentals

Job description

Everforth Apex is seeking a Network Security Analyst II to support enterprise security operations across on-premises, cloud, and endpoint environments. You will monitor alerts, investigate incidents, and develop detection rules while coordinating with multiple teams to mitigate risk.

The role requires hands-on SIEM/EDR/NDR experience and strong communication skills. This is a 10-month on-site contract based in North Austin, TX.