IT Security Administrator Jobs in Herndon, VA

Manage end-user support and maintain IT infrastructure to ensure seamless operations for critical aerospace missions. Drive technical solutions, improve system performance, and enhance user experience...

Champion innovative solutions by leveraging extensive cloud and systems expertise. Collaborate with a dynamic team to enhance our systems administration while driving security and efficiency in govern...

Transform public safety technologies by providing 24/7 system support, project management, and infrastructure oversight. Engage with diverse agencies to enhance operational excellence through innovati...

Address security assessments and risk management by developing mitigation strategies. Collaborate across teams to implement robust security controls, ensuring compliance with NIST and ISO standards wh...

Lead the charge in managing IT system infrastructures, providing troubleshooting and support for various platforms. Engage in problem resolution while ensuring operational integrity to enhance reliabi...

Join our team to oversee and optimize IT infrastructure, ensuring performance in UNIX and Windows environments. Provide expert technical support and ensure system reliability for daily operations and...

Empower secure and reliable IT operations by managing a mission-critical enclave network. You'll maintain and troubleshoot network devices while ensuring compliance across both physical and virtual en...

Join a team that's crucial in supporting national intelligence missions through efficient technical solutions and customer-focused service in a dynamic 24/7 operations environment...

Optimize user experiences by managing and developing ServiceNow platforms. Lead technical initiatives, mentor team members, and ensure seamless operations through effective troubleshooting and documen...

Empower progress at the intersection of technology and service by leveraging your expertise in ServiceNow administration and development, enhancing user experiences, and mentoring junior team members...

Support our mission by providing expert Linux administration in a dynamic enterprise environment. You'll install, configure, optimize, and secure systems while ensuring compliance with industry standa...

Collaborate with a technical team to maintain a secure network infrastructure supporting national security operations, ensuring system availability and compliance within a fast-paced, mission-critical...

Deliver comprehensive Tier I and II IT support in a dynamic mission-driven environment. Enhance system performance and reliability for UNIX and Windows operations, ensuring critical infrastructure ope...

Empower high-performance computing through expert system administration, providing critical support, troubleshooting, and optimization of IT systems, while managing daily operations and enhancing reli...

Advance your career by providing top-tier HPC services, ensuring seamless IT operations while solving complex issues and enhancing system performance. Collaborate with diverse teams to deliver impactf...

Drive cybersecurity excellence by identifying vulnerabilities and enhancing security posture through rigorous assessments, system hardening techniques, and threat analysis, ensuring organizational res...

Manage and support IT systems by troubleshooting, ensuring system integrity, and optimizing performance. Oversee operations and provide Tier 1 and Tier 2 problem resolution while communicating status...

Lead comprehensive Cybersecurity initiatives to enhance enterprise networks, collaborating with key teams to design, manage, and ensure compliance with security policies and monitoring strategies acro...

Engage with our IT Operations team as a Senior Systems Administrator, focusing on Identity and Access Management while driving integration across security, endpoint, and identity systems to enhance in...

Contribute to our information security initiatives by assessing vendor risks, developing security automation, and providing compliance guidance while ensuring secure AI systems and practices are estab...

Transform enterprise IT operations with your extensive experience in Windows migrations, Active Directory management, and server configuration. Drive compliance and efficiency in multi-domain environm...

Unlock your potential as you manage and support complex IT systems. Collaborate with users to ensure seamless operations, troubleshoot issues, and maintain system security while enhancing overall infr...

Drive operational security for government systems. Ensure compliance with DoD and NIST requirements while managing risks and implementing security policies throughout systems' lifecycles in a dynamic...

Shape the future of IT infrastructure by managing Windows and Linux servers, ensuring high availability, and enhancing cloud solutions through innovative problem-solving and team collaboration...

Make your mark at the forefront of network security, leading a skilled team to manage and safeguard all LAN/WAN systems while strategizing and implementing best practices to meet organizational goals...