Senior Network Security Analyst – SIEM & Threat Hunting

Akaasa Technologies; Austin (TX); On-site; USD 90,000 - 140,000; Full time

Job summary

The Network Security Analyst II at HHSC is responsible for advanced cybersecurity and network security analysis, monitoring, detection, investigation, and response across on‑premises, cloud, and endpoint environments. You will bring hands-on experience with SIEM, SOAR, EDR, and incident response to protect Texans’ data and services.

Ideal candidates have strong technical depth, collaboration skills, and the ability to translate complex findings into actionable guidance for leadership and

Qualifications

• Minimum of seven years of experience in cybersecurity, network security, security operations, incident response, or a closely related information security role.
• Hands-on experience with Microsoft Sentinel, including incident management, analytics rules, workbooks, automation, data connectors, and Kusto Query Language.
• 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.
• Working knowledge of network security concepts, including firewalls, IDS/IPS, proxy logs, DNS, VPN, TCP/IP, segmentation, and secure network architecture.
• Ability to analyze complex security events, correlate data across multiple sources, and produce clear written documentation and recommendations.
• Knowledge of security frameworks, standards, and regulatory considerations such as NIST, CIS Controls, HIPAA, and state information security requirements.
• Strong communication, collaboration, problem-solving, and analytical 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 HHSC 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

SIEM

SOAR

EDR

XDR

NDR

Threat intel

KQL/SPL

Security logs

SIEM architecture

Detection engineering

Education

Bachelor's degree

Security certifications

Tools

Microsoft Sentinel

KQL

SPL

Data connectors

Job description

The Network Security Analyst II at HHSC is responsible for advanced cybersecurity and network security analysis, monitoring, detection, investigation, and response across on‑premises, cloud, and endpoint environments. You will bring hands-on experience with SIEM, SOAR, EDR, and incident response to protect Texans’ data and services.

Ideal candidates have strong technical depth, collaboration skills, and the ability to translate complex findings into actionable guidance for leadership and