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Cyber Tier 1 Deputy Team Lead with Security Clearance

Job in Stennis Space Center, Hancock County, Mississippi, 39529, USA
Listing for: Leidos
Full Time position
Listed on 2026-08-21
Job specializations:
  • Security
    Cybersecurity
Job Description & How to Apply Below
Location: Stennis Space Center

R
- Description Leidos is seeking a Cyber Tier 1 Deputy Team Lead to join our team on a highly visible cyber security single-award IDIQ vehicle that provides Network Operations Security Center (NOSC) support, cyber analysis, application development, and a 24x7x365 support staff.  Department of Homeland Security (DHS), Network Operations Security Center (NOSC) is a U.S. Government program responsible to monitor, detect, analyze, mitigate, and respond to cyber threats and adversarial activity on the DHS Enterprise.
The DHS NOSC has primary responsibility for monitoring and responding to security events and incidents detected at the Trusted Internet Connection (TIC) and Policy Enforcement Point (PEP) and is responsible for directing and coordinating detection and response activities performed by each Component SOC. Direction and coordination are achieved through a shared DHS incident tracking system and other means of coordination and communication.

The Cyber Tier 1 (Monitoring and Analysis) team provide 24x7 support across 4 different shifts. We have front half shifts (day and night) and back half shifts (day and night). The front half shift will work 12-hour shifts from Sunday – Tuesday and alternating Wednesdays. The back half shift will work 12-hour shifts from Thursday – Saturday and alternating Wednesdays.  

Candidates must have the ability to work non-core hours, if necessary.
Duties include network security monitoring and detection, proactively searching for threats, inspecting traffic for anomalies and new malware patterns, investigating and analyzing logs, providing analysis and response to alerts, and documenting activity in NOSC investigations and Security Event Notifications (SENs).
The Cyber Tier 1 Deputy Team Lead is a critical role within the Network Operations and Security Center (NOSC), created to enhance operational efficiency, streamline processes, and improve the overall cybersecurity posture. This role emphasizes continuous improvement of effectiveness and efficiency, ensuring consistent communication and task completion across all shifts, and providing quality assurance and content enhancement for cybersecurity investigations and monitoring tools.
Primary Responsibilities
* Onboarding Optimization:
* Lead efforts to reduce onboarding time through continuous observation and assessment of operations and administrative processes.
* Implement process improvements to enhance efficiency and reduce unnecessary efforts, leveraging Lean Six Sigma methodologies.
* Process Improvement:
* Continuously review and refine Standard Operating Procedures (SOPs) and workflows to ensure they are modern, efficient, and aligned with current needs.
* Collaborate with the SOAR team and other special teams to enhance automation and workflow capabilities.
* Customer Service Enhancement:
* Provide superior customer service to the Department of Homeland Security (DHS) by accurately identifying and addressing ad hoc requests from federal leadership.
* Act as a point of contact for high-level leaders and leads on the federal side to ensure clear communication and understanding of requirements.
* Training and Tools Management:
* Oversee and maintain compliance with required training programs, including on-the-job cybersecurity training and DHS-mandated e-learning courses.
* Manage and maintain access to cybersecurity tools, ensuring all team members have the necessary permissions to perform their roles effectively.
* Provide training on the use of various cybersecurity tools to team members, enhancing their capability to use the tools efficiently.
* Shift Liaison and Task Management:
* Ensure that all shifts (Front Days, Back Days, Front Nights, Back Nights) do not miss important emails or tasks, maintaining consistency in task completion.
* Monitor and follow-up on asks to ensure they are addressed and not overlooked, addressing gaps in previous processes.
* Quality Assurance and Content Improvement:
* Perform quality assurance checks on Splunk comment closures, Splunk investigations, and cybersecurity investigations (ECMs).
* Conduct quality checks on EBMs or proxy and firewall blocks submitted within…
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