Top Senior System Administrator Jobs

The Senior System Administrator will design, configure, and support Windows Server environments, manage virtualization, and implement disaster recovery strategies.

Ensure immediate response to outages, support mainframe systems, analyze and resolve systems problems, and monitor software and hardware performance.

Responsible for the design, deployment, and maintenance of Linux/UNIX server systems and software, with virtualization and project support responsibilities.

Seeking a Senior System Administrator with strong expertise in Information Processing, Middleware solutions, and Application Management, requiring significant hands-on experience and a Secret Clearance.

Provide combat system simulation support, implement network solutions, and maintain accreditation for Government wide area network usage.

The Senior System Administrator will secure, sustain, and optimize complex DoD environments, perform system upgrades, manage security configurations, and ensure compliance with various security standards.

Responsible for supporting ERP system users, troubleshooting issues, training, optimizing processes, and ensuring system efficiency and data integrity.

Manage and optimize Linux production environments, including server provisioning, lifecycle management, automation with scripting, and system compliance. Collaborate with stakeholders, monitor performance, and ensure security adherence while supporting multiple projects.

The Senior Linux System Administrator will maintain Linux-based systems, perform troubleshooting, manage server deployments, and ensure proper documentation while advising on technical improvements.

Lead administration and maintenance of servers, ensuring security, performance, and compliance. Optimize systems, conduct vulnerability remediation, and advise leadership on infrastructure risks.

Provide senior systems administration and PITCO coordination for Navy C4I modernization (CANES/TACNET). Ensure secure, compliant configurations, manage installations, patching, troubleshooting, documentation, schedules, SOPs, and technical risk mitigation to deliver operationally ready systems.

The Windows System Administrator will manage Windows environments, ensure system security, perform patching, scripting, and support compliance with DoD standards.

The Linux System Administrator is responsible for installing, configuring, maintaining, and securing enterprise workstations and servers, ensuring compliance with DoD IT policies.

The role involves managing HPC systems, administering Linux servers, utilizing container technologies, and supporting storage systems. The candidate must collaborate with teams and address infrastructure needs while ensuring system optimization.

The Windows System Administrator will manage Windows Server environments, perform system maintenance, support Active Directory, and ensure compliance with security standards.

The Linux System Administrator will manage RHEL systems, ensure compliance with security policies, automate tasks, and maintain system documentation. They will support incident response and backup solutions while working with customers in a DoD environment.

The Windows System Administrator manages Windows Server environments, supports Active Directory, performs system patching and troubleshooting, and ensures compliance with security standards and high availability of networks.

Responsible for maintaining and managing macOS systems, enforcing security policies, and ensuring compliance with IT policies at the Army Research Laboratory.

This role involves supporting Linux-based systems, managing VMware VMs, ensuring security compliance, and providing 24x7 operational support.

The Senior Linux System Administrator will manage IT systems implementation, troubleshooting, and maintenance, providing Tier I and II support while ensuring reliability and performance of enterprise infrastructure.

The Senior Principal System Administrator will manage Linux and Windows systems, providing technical guidance, operating systems management, and collaboration with Cybersecurity while ensuring compliance with security clearance requirements.

The Training System Administrator will manage and secure training server environments, ensure compliance with security regulations, and oversee performance monitoring and troubleshooting.

The Senior Automation System Administrator will manage automated systems, ensuring compliance and facilitating collaboration across teams for biopharmaceutical processes.

The Senior Windows System Administrator will administer systems in a Microsoft Windows and Linux environment, troubleshoot issues, maintain security, and support classified programs.

The Senior Principal System Administrator will manage systems' hardware and software within a Windows/Linux infrastructure, provide mentorship, and ensure system security while supporting operational needs.