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Threat Management Specialist Tier 2

Castalia Systems
paid holidays, 401(k)
United States, Virginia, Falls Church
Aug 12, 2025

Work Type: Remote (with the ability to travel to Falls Church, VA or Morrisville, NC as required by client)

Job Type: Full-Time; shifts (may vary between different labor categories):



  • M-F 7 AM - 4 PM
  • Tu/W = 10 AM - 7 PM and Sa/Su= 10AM - 10:30 PM


Clearance: Public Trust

Must be a U.S. Citizen

Benefits: Medical, dental, and vision coverage, 401k matching, generous PTO, paid holidays, professional training opportunities, and even pet insurance to ensure your furry friends are cared for too.

Job Summary

Castalia Systems seeks a Threat Management Specialist Tier 2 Analyst to perform deep-dive incident analysis by correlating data from various sources and determines if a critical system or data set affected. Handle incidents as defined in Playbooks and SOPs. They also advise on remediation actions and provide input and analysis on how to leverage Artificial Intelligence, Machine Learning, and SOAR capabilities to improve CSOC efficiency and accuracy.

Roles and Responsibilities

A qualified candidate will perform the following duties and responsibilities, but are not limited to:



  • Identification of Cybersecurity problems which may require mitigating controls.
  • Analyze network traffic to identify exploit or intrusion related attempts.
  • Recommend detection mechanisms for exploit and or intrusion related attempts.
  • Provide subject matter expertise on network-based attacks, network traffic analysis, and intrusion methodologies.
  • Escalate items which require further investigation to other members of the Threat Management team.
  • Execute operational processes in support of response efforts to identify security incidents.
  • Utilize AI/ML-based tools and techniques to detect anomalies, automate incident triage, and improve threat intelligence.
  • Performing and analyzing threat intelligence to assess risk and adapt defenses using ML enhance tools.
  • Manage email security using ProofPoint, monitor for threats, and promptly respond to attacks.
  • Configure Splunk for log analysis, create alerts, and investigate security incidents diligently.
  • Set up FirePower for network monitoring, analyze traffic patterns, and enforce robust security measures.
  • Deploy Sentinel 1 agents efficiently, monitor alerts closely, and conduct thorough security assessments.
  • Monitoring, reviewing, and responding to security alerts and incidents across multiple platforms including Microsoft Defender for Cloud Apps, Defender for Endpoint, Defender XDR, Defender for Office 365, Azure Entra ID, and Google Cloud Security Command Center (SCC).
  • Performing threat detection and analysis, investigating suspicious activity, coordinating incident response efforts, and implementing remediation actions.
  • Tuning security policies, maintaining visibility into cloud and endpoint environments, and supporting continuous improvement of the organization's security posture.
  • Stay current on the latest cybersecurity trends, threat actors, and AI/ML research relevant to the field.
  • Identify and support automation use cases, including the use of AI/ML to enhance SOC capabilities.
  • Collaborate across Operations to provide SOC enhancement capabilities through the use of automation and AI.


Required Qualifications



  • Bachelor's degree in Computer Science, Information Technology or related field.
  • 3+ years IT security experience with at least some exposure to AI/ML projects
  • 2+ years' experience in network traffic analysis.

  • One or more relevant certifications such as GIAC Certified Enterprise Defender (GCED), GIAC Certified Security Essentials (GSEC) or CISSP.


  • Strong working knowledge of:

    • Boolean Logic.
    • TCP/IP Fundamentals.
    • Network Level Exploits.
    • Threat Management.


  • Knowledge of Control Frameworks and Risk Management techniques.
  • Excellent oral, written communication skills and excellent interpersonal and organizational skills.
  • Strong understanding of IDS/IPS technologies, trends, vendors, processes and methodologies.
  • Strong understanding of common IDS/IPS architectures and implementations.
  • Strong understanding of IDS/IPS signatures, content creation and signature characteristics including both signature and anomaly-based analysis and detection.
  • Experience with cloud security (AWS, Azure, GCP).
  • Hands-on experience with cybersecurity automation (e.g., SOAR platforms).
  • Proficiency in using machine learning frameworks to develop, train, and deploy models for anomaly detection, threat intelligence, and behavioral analysis in cybersecurity contexts.
  • Skills in data analysis and feature engineering, with the ability to preprocess and transform large datasets from various sources (e.g., logs, network traffic) to extract relevant features for machine learning models aimed at identifying security incidents and vulnerabilities.
  • Familiarity with the application of AI/ML techniques in cybersecurity, including but not limited to automated threat detection, incident response automation, and predictive analytics. Experience in evaluating the effectiveness of AI/ML solutions in a SOC environment is a plus.
  • Understanding and experience identifying and implementing automation use cases.


Desired



  • SSCP Certificate..


Physical Requirements/Work Environment



  • Normal office environment.
  • Shifts (may vary between different labor categories):

    • M-F 7 AM - 4 PM
    • Tu/W = 10 AM - 7 PM and Sa/Su= 10AM - 10:30 PM




Travel



  • Must be willing to travel 0-25% of the time.


Company Description

Castalia Systems is a proven business partner providing mission critical solutions to the Federal Government. We provide cutting edge solutions from Securing and Managing Data to Systems Engineering and Development. Castalia Systems is a pioneer in Artificial Intelligence Design and Application.

With our vast knowledge of our customers' needs and relevant technology, our team is able to bring successful solutions to every mission. We are one-upping our competitors by providing premium IT solutions and platforms with cutting-edge technology so it's so evident when you compare us with anyone.

Disclaimer

Castalia Systems is an equal employment opportunity and affirmative action employer and strives to comply with all applicable laws prohibiting discrimination based on race, color, creed, sex, sexual orientation, age, national origin, or ancestry, physical or mental disability, veteran status, marital status, HIV-positive status, as well as any other category protected by federal, state, or local laws. All such discrimination is unlawful, and all persons involved in the operations of the company are prohibited from engaging in this type of conduct.

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