Network Security Analyst — Threat Detection & IR (Austin)

ACS Consultancy Services; Austin (TX); On-site; USD 100,000 - 150,000; Full time

Job summary

ACS Consultancy Services in Austin, TX seeks a Network Security Analyst to monitor, analyze, and respond to cyber threats on enterprise networks.

The role requires hands-on experience with SIEM, EDR, cloud security, and incident response, plus strong collaboration with IT and security teams. Onsite work with potential after-hours support focused on safeguarding critical infrastructure and data. Candidates should understand NIST/ATT&CK and contribute to playbooks and vulnerability reviews.

Qualifications

• Experience in cybersecurity operations, monitoring, incident response, threat detection, and investigations.
• Knowledge of CSOC/SOC operations and incident triage processes.
• Familiarity with MITRE ATT&CK, IOCs/IOAs, and common cyber threats.
• Ability to document investigations and coordinate with multiple teams.

Responsibilities

• Monitor, analyze, and triage cybersecurity alerts from SIEM, EDR, cloud security, and network security platforms.
• Conduct initial investigations to determine severity, scope, and impact on operations.
• Escalate threats to Incident Response teams according to procedures.
• Correlate events from endpoints, networks, and cloud services; review IOCs/IOAs.
• Document findings, assist with containment, eradication, and recovery efforts.
• Support threat detection improvements, playbooks, and knowledge base updates.

Skills

Cybersecurity concepts

Threat triage

Incident analysis

Data correlation

Communication to diverse audiences

Team collaboration

Independent work

Education

Bachelor's degree in CS/IS/CYBER

Related field expected

Tools

SIEM

EDR/XDR

Threat intel

Vulnerability management tools

Firewalls/IDS/IPS

Job description

ACS Consultancy Services in Austin, TX seeks a Network Security Analyst to monitor, analyze, and respond to cyber threats on enterprise networks.

The role requires hands-on experience with SIEM, EDR, cloud security, and incident response, plus strong collaboration with IT and security teams. Onsite work with potential after-hours support focused on safeguarding critical infrastructure and data. Candidates should understand NIST/ATT&CK and contribute to playbooks and vulnerability reviews.