IT Security Administrator Jobs in Arlington, VA

Transform federal cybersecurity compliance by leading initiatives for FISMA Moderate applications, coordinating across diverse teams to ensure secure and efficient operations in accordance with nation...

Optimize network operations by monitoring connections, resolving user access issues, and ensuring infrastructure security. Engage in proactive risk management and support a diverse user base with high...

Engage in critical systems administration for enterprise operations, ensuring system integrity, security, and performance. Collaborate with engineers and support virtualization and storage services wh...

Lead critical infrastructure operations for the ServiceNow platform, focusing on troubleshooting and support of MID Servers, VM systems, and connectivity. Collaborate with technical teams to ensure op...

Join a dynamic team to lead the administration and operations of an enterprise ServiceNow platform, supporting critical functions and ensuring high performance and security in a federal environment. G...

Transform your career by providing vital technical support and system administration. Engage with an agile team to enhance system performance and ensure optimal functionality, focusing on GEOINT appli...

Join a dynamic team to optimize IT systems through troubleshooting, maintenance, and support. Lead implementation and management of diverse technologies within a collaborative environment focused on d...

Unlock potential by managing and enhancing IT systems across networks. Collaborate with users for seamless operations, troubleshoot issues, and ensure compliance with security standards while providin...

Contribute to the security and reliability of IT infrastructure, driving system administration and compliance efforts. Engage in advanced troubleshooting, manage cloud and on-prem services, and suppor...

Shape the future of federal cybersecurity by leading a team of ISSOs, overseeing RMF activities, and collaborating with government stakeholders to ensure security compliance for AWS applications. Driv...

Unlock potential by managing and securing enterprise networks as a Windows Systems Administrator. You'll enhance performance, support security operations, and ensure our systems meet federal guideline...

Join a team that's dedicated to optimizing IT systems in a mission-critical environment, ensuring the reliability and security of operations across Windows, Linux, and UNIX. You'll manage infrastructu...

Join a dedicated team to enhance IT security compliance by implementing best practices, conducting assessments, and ensuring adherence to federal regulations. Support efforts to bolster system securit...

Partner with us to ensure seamless network operations and security in a high-stakes environment. Support a modern Secure Web Services operation with proactive monitoring, troubleshooting, and maintena...

Join our team to provide expert Linux systems administration and operational support for mission-critical environments. Leverage your extensive experience to troubleshoot and enhance system performanc...

Lead the charge in enhancing cybersecurity by managing comprehensive information security strategies and ensuring compliance with risk management frameworks, while collaborating with key stakeholders...

Partner with us to safeguard our global enterprise automation platform by designing and implementing advanced security systems. You'll play a crucial role in evaluating threats and building defenses a...

Contribute to the security and optimization of classified IT infrastructure by managing systems, ensuring compliance, and delivering technical support in a dynamic, mission-driven environment...

Unlock potential by managing a complex IT environment, delivering innovative solutions, and ensuring system integrity across multiple airgapped systems while collaborating with diverse teams to meet o...

Advance your career by providing essential support in a complex system environment. Contribute to the sustainment and optimization of network-centric operations while collaborating with a dynamic team...

Engage in managing and optimizing enterprise Unix/Linux environments to enhance infrastructure operations and security, providing vital support for mission-critical applications and automation initiat...

Lead the charge in administering and securing complex IT environments while supporting mission-critical operations. This role demands expertise in systems management and requires a Top Secret/SCI clea...

Elevate the university’s cybersecurity posture by managing and optimizing security systems, conducting forensic analysis, and leading incident response efforts. Collaborate with teams to protect infor...

Transform IT solutions by automating workflows and enhancing security with tools like Go and Kubernetes. Collaborate across teams to tackle diverse challenges while honing your skills in a modern, inn...

Lead a vital role in ensuring cybersecurity integrity through expert patch management and vulnerability remediation across diverse environments, leveraging Microsoft technologies and SCCM to maintain...