Cybersecurity Systems Administrator Job at General Dynamics in Tampa

Job Overview

Advance your career while impacting our national security in cyber as a Cybersecurity Systems Administrator at GDIT. Technologists have many paths to grow a meaningful career supporting cyber missions and operations across the federal government.

Responsibilities

• Configure, tune, and maintain critical security infrastructure, including SIEM, EDR, network access control, and SOAR platforms.
• Collaborate with stakeholders to define and implement effective configurations for SIEM, EDR, and network access control solutions.
• Customize and optimize alert rules, correlation searches, and detection mechanisms within SIEM.
• Deploy new SIEM instances, including clustered deployments and applications.
• Fine‑tune EDR policies, rulesets, and scanning parameters to improve endpoint visibility and threat detection.
• Configure network access control policies to enforce security posture.
• Support Linux environments, edit and maintain Splunk configuration files and apps.
• Interact with end users to gather requirements, troubleshoot, and assist with Splunk queries and dashboards.
• Integrate cyber tools with legacy data sources; develop and maintain automation scripts and playbooks within SOAR.
• Perform routine maintenance tasks, software updates, patches, and performance tuning.
• Provide timely support and troubleshooting for incidents related to SIEM, EDR, C2C, and SOAR.
• Conduct regular system audits and health checks; implement corrective actions.
• Develop and enforce configuration standards, security policies, and operational procedures.
• Monitor compliance with security policies and regulations; collaborate with compliance and audit teams.
• Share training sessions, document processes, and foster knowledge sharing within the team.

Qualifications

• Bachelor’s degree in Information Systems, Computer Science, Computer Engineering, or related field.
• 3+ years of related experience in cybersecurity administration, focusing on SIEM, EDR, network access control, and SOAR.
• Relevant certifications (e.g., Security+, CISSP, GIAC, Splunk Core Certified Power User).
• Proficiency in Linux environments, system administration, and shell scripting.
• Strong analytical skills, attention to detail, and ability to troubleshoot complex technical issues.
• Excellent communication and collaboration skills.
• Ability to work independently, prioritize tasks, and meet deadlines in a dynamic environment.
• Prior CENTCOM/COCOM experience and SOC experience are a plus.
• TS/SCI clearance required; US citizenship required.

Benefits

Competitive pay, 401K with company match, paid time off, comprehensive benefits, and a military‑friendly workplace.

Equal Opportunity Employer

Individuals with Disabilities / Protected Veterans.