Top Senior System Administrator Jobs

Seeking a Senior System Administrator with a minimum of five years' experience in supporting various technologies including server OS, messaging, desktop OS, backup, anti-virus, deployment tools, storage, virtualization, server hardware, and certifications. The ideal candidate should possess strong analytical and communication skills, leadership qualities, and a strategic technical vision.

Senior System Administrator position with a focus on Identity, Credential and Access Management (ICAM) system support. Responsibilities include VM configuration, OS and software loading, security hardening, and certification maintenance. Required TS/SCI clearance and Bachelor's degree in computer engineering or related field. Preferred qualifications include networking, virtual machines maintenance, Linux and Windows OS, Docker, scripting, and patching.

Join ClearEdge as a Senior System Administrator to work with a platform team in providing essential and reliable systems for a great user experience. Responsibilities include implementing, troubleshooting, and maintaining IT systems, managing mission-critical systems, and optimizing system performance. Must have strong VMware skills and an Active or current TS/SCI Polygraph clearance. Ideal candidate is self-motivated, enjoys working in a technical team, and has a desire to learn new technologies.

Support the design, configuration, and deployment of Windows Server 2008/2012 Managed Member Servers (MMSs), Failover Servers (FS1s), and Application Managed Servers (AMSs).

Support the design, configuration, and deployment of Windows Server 2008/2012 Managed Member Servers (MMSs), Failover Servers (FS1s), and Application Managed Servers (AMSs).

The Senior System Administrator is responsible for managing and overseeing the customer's IT systems and infrastructure. This role involves configuring, maintaining, and troubleshooting server environments, ensuring system performance, and implementing security measures. The Senior System Administrator will also provide comprehensive Tier 2 and 3 operational IT support, ensuring the seamless operation and maintenance of desktop, laptop, and server systems.

Seeking a Systems Administrator to deploy and configure software releases, maintain systems, and participate in cutting-edge Space Situational Awareness systems. Must have strong troubleshooting and communication skills and work well in a fast-paced environment.

Provide expert level system administration services to manage and maintain equipment, networks, and web applications supporting field communications systems. Apply STIGs, support mission-critical systems, deploy patches, ensure system security, and provide operational support.

Join Parsons as a Systems Administrator to work on a cutting-edge cyber project for the DOD/Intel community. This role involves systems administration, network management, design, and security engineering.

Join Parsons as a Systems Administrator supporting day-to-day operations in a critical infrastructure environment. Responsibilities include system design, installation, monitoring, troubleshooting, and providing technical insights to the team. Must have 3-5 years of experience, TS/SCI w/ poly, and expertise in Microsoft Windows Server, PowerShell, and networking protocols.

Parsons is seeking a versatile System Administrator with 2+ years of experience to maintain operating systems, security tools, applications, servers, desktops, software, and hardware. Responsibilities include system architecture assessment, hardware maintenance, software patch installation, and security management.

The Senior System Administrator-Subject Matter Expert will provide expert technical knowledge to monitor and maintain an enterprise services environment consisting of Windows servers, Red Hat Enterprise Linux servers, and network appliances. Responsibilities include assisting mission partners with mobile device connectivity debugging, implementing automation tools, leading configuration updates, resolving system/network issues, and mentoring junior team members.

Seeking an experienced Senior Systems Administrator to support classified lab environments in San Diego, CA. Responsibilities include setting up and managing Windows-based systems, Virtual Machines, network design, system documentation, and security compliance. Requires a Bachelor's Degree, CompTIA Security+ certification, top-secret security clearance, and expertise in Active Directory, Exchange, and Windows Server.

Provide customer service and IT support to software development lab, manage lab priorities and projects, work with IT professionals and software engineers, possess Bachelor's degree in related disciplines, and have 5+ years of experience as a Systems Administrator.

Senior System Administrator responsible for managing clients' systems infrastructure needs, network security, infrastructure design, and providing level 3 support. Must have experience in Windows Server, AWS, Linux, and networking technologies.

Join BAE Systems as a System Administrator II to design, implement, and manage lab infrastructure, Windows and Linux servers, and user workstations. Support internal customers, maintain network and collaboration servers, and adhere to security standards. Requires customer service orientation, attention to detail, and proficiency in enterprise-level Windows Server environments.

Senior IT Systems Administrator position at Parsons, responsible for providing technical support and troubleshooting across multiple systems and applications. Tasks include system administration, maintenance, monitoring, and adherence to security protocols. Must have knowledge in Windows, Linux, and AWS technologies.