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Local Defender Cybersecurity SOC Analyst Threat Analyst

Job in Irvine, Orange County, California, 92713, USA
Listing for: COLSA Corporation
Full Time position
Listed on 2026-09-25
Job specializations:
  • IT/Tech
    Cybersecurity
Salary/Wage Range or Industry Benchmark: 180000 - 230000 USD Yearly USD 180000.00 230000.00 YEAR
Job Description & How to Apply Below

Principal Duties and Responsibilities (Essential functions):

  • Monitor and analyze security events and alerts generated by SIEM platforms, firewalls, IDS/IPS, and endpoint detection tools to identify potential threats and anomalous behavior.
  • Perform basic system administration functions on the sensor capability systems and components, such as applying patches and updates if touch labor is required.
  • Analyze data from installed OT sensors to identify patterns and trends and assist with the reports generated regarding system performance and health.
  • Diagnose and resolve issues related to sensor data, including malfunctioning sensors, communication problems, and data integrity problems if necessary.
  • Analyze potential security incidents and investigate to determine the scope, impact, root cause, and recommend effective remediation strategies.
  • Perform triage on security incidents to identify root causes and recommend appropriate mitigation measures.
  • Conduct regular reviews of SIEM reports to identify patterns, trends, and potential vulnerabilities within the organization's infrastructure.
  • Develop actionable recommendations based on SIEM data analysis to enhance detection capabilities, optimize alert configurations, and address identified gaps.
  • Escalate critical incidents to senior leadership or appropriate teams and provide detailed incident summaries with proposed mitigation actions.
  • Maintain accurate documentation of security events and incident-handling procedures.
  • Monitor and evaluate Cyber Tasking Orders (CTOs) and other directives from NETCOM, ensuring compliance and timely implementation of mitigations.
  • Conduct research on the latest organization’s environment threat vectors, attack methodologies, and adversarial tactics, techniques, and procedures (TTPs).
  • Collaborate with other cybersecurity team members and the government customer to integrate threat intelligence into incident detection and response processes.
  • Analyze CVEs, security bulletins, threat intelligence feeds, and security advisories to assess their relevance and potential impact to the mission and the organization’s environment.
  • Correlate threat intelligence with SIEM findings to identify and assess emerging threats.
  • Develop and communicate proactive mitigation strategies based on threat landscape trends and adversary tactics.
  • Generate detailed and actionable reports for leadership from SIEM platforms summarizing identified threats, incidents, and remediation steps.
  • Provide recommendations for improving the organization’s cybersecurity posture based on incident trends and threat intelligence.
  • Maintain clear communication with cross-functional teams to ensure alignment with security objectives and protocols.
  • Generate detailed reports on threats, false positives, and actionable insights.
  • Provide the Government customer and leadership with concise, data-driven recommendations for enhancing the organization’s cybersecurity defenses based on SIEM trends and incident analysis.
  • Prepare summaries and status updates of security posture improvements resulting from SIEM data analysis and implemented recommendations.
  • Support the configuration, tuning, and optimization of security monitoring tools, including SIEM and threat detection platforms.
  • Work with the team to improve the accuracy, reliability, and efficiency of OT sensor data collection and analysis.
  • Conduct periodic reviews and updates of security tools to address gaps or inefficiencies.
  • Participate in the testing and implementation of new security technologies as required.
  • Collaborate with the team and the stakeholder community to fine-tune SIEM configurations, including custom rule creation and log source integration, to improve threat detection accuracy.
  • Conduct periodic evaluations of SIEM and…
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