IT Security Administrator Jobs in Fairfax, VA

Engineer, implement, and maintain critical IT systems while providing support, troubleshooting, and managing day-to-day operations to optimize performance and reliability in a complex technical enviro...

Engage in the support, management, and optimization of IT systems, ensuring operational efficiency and problem resolution. Collaborate with teams to enhance system infrastructures and maintain seamles...

Take ownership of IT documentation and budgeting for 45-55 client accounts, providing strategic guidance and fostering strong relationships while proactively addressing their technology needs and enha...

Join our team to implement and manage enterprise network infrastructure, ensuring secure connectivity and optimal performance for a large-scale operation serving over 120,000 users across diverse loca...

Optimize operations by leading IT systems management across multiple locations. Collaborate with teams to provide technical support, ensure security compliance, and enhance functionality in a high-sta...

Contribute to network performance by managing Cisco Meraki devices and Windows servers. Troubleshoot complex issues, ensure security compliance, and optimize infrastructure. Engage with IT staff to su...

Grow your career with a dynamic team in this critical role, enhancing and securing enterprise Linux systems while leveraging automation and cloud technologies to improve operations and support nationa...

Solve complex infrastructure issues while managing user systems and security. Take ownership of system administration tasks, apply necessary updates, and support deployment of new projects to ensure e...

Champion vulnerability remediation and system hardening in a diverse enterprise environment. Collaborate with INFOSEC to ensure compliance, drive execution, and maintain security across Windows and Li...

Join a skilled infrastructure team as a Senior System Administrator, leveraging your Windows expertise to design, maintain, and optimize cutting-edge systems and networks in complex environments, whil...

Drive cybersecurity excellence by collaborating with senior teams to enhance operations, compliance, and documentation in diverse environments, ensuring robust security controls and adherence to feder...

Join a team that's enhancing cybersecurity controls across government and commercial sectors. This role involves supporting senior staff with day-to-day security operations and ensuring compliance wit...

Lead the charge in safeguarding sensitive data within a critical cybersecurity program. Collaborate with teams to implement robust data protection controls and monitor user activity, ensuring complian...

Optimize enterprise Data Loss Prevention (DLP) strategies to safeguard sensitive data while driving collaboration across security, engineering, and compliance teams in a fast-paced, regulated environm...

Advance your career by driving Army IT approvals and governance, ensuring technology investments align with critical policies. Your expertise will enhance operational readiness and promote seamless mi...

Manage the IT Approval System to ensure Army technology aligns with governance. Your analytical skills will improve workflow efficiency, compliance, and decision-making speed, directly impacting the A...

Deliver comprehensive Linux system administration support, ensuring the stability and performance of critical infrastructure through effective management of CentOS, Rocky, and RHEL environments while...

Play a key role in managing and maintaining Linux systems, collaborating with teams to ensure optimal server performance while adhering to security protocols and guidelines. Leverage extensive experie...

Innovate reliable cloud-based systems while enhancing security and automation. Collaborate across teams, mentor peers, and drive strategic infrastructure improvements in a dynamic DevOps environment t...

Empower the Mission LAN by managing systems administration, ensuring seamless operations, security compliance, and enhanced functionality. Drive innovation through technical expertise while collaborat...

Deliver critical IT expertise by configuring and managing cyber protection tools. Collaborate across teams to effectively lead projects while performing digital forensics and vulnerability assessments...

Execute high-impact virtualization strategies by designing, implementing, and optimizing VMware solutions across a large enterprise, ensuring robust performance and security for mission-critical opera...

Optimize IT systems through effective implementation, troubleshooting, and maintenance. Deliver daily operational support for diverse infrastructures while ensuring system reliability and performance...

Join a dynamic team to enhance IT systems management, support troubleshooting, and ensure operational excellence across a secure environment, optimizing performance and user experience while engaging...

Join a dynamic team to enhance education and training applications through Life Cycle Sustainment activities, maintaining and optimizing hybrid Windows/Linux systems while embracing cloud technology a...