Top Systems Administrator Jobs

Design, build, and maintain scalable, secure systems and HubSpot enterprise configurations. Develop integrations and automations using scripting and APIs, document systems, train users, manage incidents and maintenance, and improve workflows for digital operations.

Client-facing systems administrator who designs, implements, and maintains infrastructure. Responsibilities include server, networking, virtualization, endpoint protection, and project execution, plus client consulting, relationship management, and ongoing professional development.

The Systems Admin Sr. Specialist Advisor role involves providing technical expertise for mainframe DB2 support, managing high-severity incidents, and participating in projects. Requires extensive knowledge of mainframe systems and customer-facing skills.

The Computer Systems Administrator I will manage and maintain IT infrastructure for DoD environments, ensuring system performance and security. Responsibilities include administering Windows and Linux systems, virtualization, and collaborating with cybersecurity and engineering teams.

Provide first-line systems administration and user support for an MDA program: troubleshoot remote and in-person user issues, support MDA flight tests integrating R&D systems, handle secure communications, and occasionally work outside regular hours.

Provide senior-level VDI systems administration and subject-matter expertise for JWICS environments. Lead onboarding of new enclaves, manage major outage escalations, evaluate vendor products, develop policies and SOPs, coach junior staff, and coordinate with development partners to align technology and security needs.

Provide first-line IT support: respond to user inquiries, log and resolve basic hardware/software/network issues, manage ServiceNow tickets, perform account and peripheral support, maintain IT asset inventory, document solutions, and mentor/guide new hires when needed. Work schedule is Friday–Monday, 6am–4pm, on-site in Annapolis Junction.

Administer and support Workday financial modules (Accounting Center, Prism, Adaptive Planning, payroll, spend management), manage releases and integrations, lead configuration and implementation projects, troubleshoot incidents and data integrity issues, create documentation and test plans, and coordinate vendors to ensure secure, compliant, and efficient financial system operations.

Manage, configure, and maintain Workday financial modules (Accounting Center, Prism, Adaptive Planning, payroll, expense/spend management). Lead system upgrades, integrations, testing, troubleshooting, and vendor coordination. Produce documentation, support users, run semi-annual releases, and implement configuration changes to improve processes and ensure security, compliance, and data integrity.

Support onboarding and technical readiness of Defense Industrial Base partners by administering Linux systems, managing containerized environments (Docker, Kubernetes, Helm, Traefik), automating infrastructure with Ansible/Terraform/CloudFormation, troubleshooting cloud and container issues, and validating secure cloud adoption.

Provide regional IT support by troubleshooting and maintaining servers, networks, desktops, laptops, printers and telephony. Own help-desk tickets, document changes, assist with major system implementations, mentor junior technicians, and travel periodically to regional facilities to perform maintenance and projects.

Provide Linux and Windows server administration, VMware and NAS (NetApp) management, support backup/recovery, security auditing and hardening, assist Cyber Security, and perform system monitoring, patching, and user/account management for classified government environments.

Administer and support GLP-compliant R&D laboratory systems, ensure availability and data integrity, troubleshoot issues, manage upgrades and validations, produce documentation and training, and partner with researchers, lab staff, IT, and stakeholders to maintain regulatory compliance and fit-for-purpose lab software.

Design, implement, support, and optimize global data center, cloud, hybrid, and manufacturing OT infrastructure. Provide L2/L3 support, incident response, patching, capacity planning, disaster recovery, vendor liaison, and participate in 24/7 on-call rotation to ensure uptime, security, and performance for global manufacturing systems.

Provide Windows systems administration and IT support across servers, AD, Office 365, VMware, Veeam backups and AWS. Troubleshoot, patch, document procedures, perform assessments, collaborate with vendors, and maintain compliance with FFIEC. Occasional off-hours work and physical handling of equipment required.

Manage and secure classified IT systems in closed areas: Active Directory user/group administration, desktop imaging and hardening, virtual server management, monthly OS/application patching per STIGs, DNS/DHCP/GPO maintenance, logging and incident response, RMF compliance support, documentation, and audit/accreditation activities.

Provides on-site operational support for Varicent incentive compensation systems, including data loads, calculation cycles, workflow monitoring, troubleshooting, testing, and user support. Processes and validates DataHub data, develops Alteryx workflows, investigates discrepancies, documents procedures, and coordinates system enhancements and defect resolution with internal teams and external vendors. Supports monthly incentive cycles and communicates with business stakeholders and global teams.

Lead administration and support of multi-vendor enterprise storage arrays (Dell, HP), ensure secure storage operations, perform SAN zoning, LUN provisioning, backups/restores, migrations, firmware/patch maintenance, and on-call/after-hours maintenance while collaborating with security, engineering, and customers to maintain operational excellence.

Administer and troubleshoot Windows Server environments and core network services (AD, GPO, DNS, DHCP, routing, switching, VPN). Perform patching, backups, DR, and hardware/app support. Use ServiceNow and follow ITIL processes while working with users, vendors, and infrastructure teams and maintaining technical documentation.

Administer Windows and macOS systems, identity platforms, networks, endpoints, NAS storage, cloud services, and creative production infrastructure. Provide Tier 1 and Tier 2 support, manage onboarding and offboarding, troubleshoot Adobe and 3D production tools, maintain documentation and inventory, monitor system health, and support workstation, server, and software deployments. The role is fully onsite in Culver City, with occasional weekend maintenance and after-hours support responsibilities.

Install, maintain, secure, and tune servers; perform patching, backups, volume/partition management, and hardware/OS maintenance. Work with Systems Management lead on capacity planning and disaster recovery. Support IIS and business services, SAN storage, VMware virtualization, ASA firewall, Active Directory and Group Policy administration.

Provides Linux systems administration and operational support for mission-critical, highly available data transport and messaging environments. Responsibilities include command-line administration, application, data, and messaging flow management, troubleshooting routine to moderately complex system issues, business-day operational coverage, and rotating 24x7 after-hours on-call support.

Provides Linux systems administration and operational support for mission-critical, highly available enterprise transport and messaging environments. Performs command-line administration, manages application, data, and messaging flows, and independently troubleshoots routine to moderately complex issues. Participates in standard business-day coverage and a rotating 24x7 after-hours on-call schedule. Requires at least five years of experience and an active TS/SCI with Polygraph clearance.

Administers and troubleshoots corporate IT infrastructure, including Windows systems, hardware, networks, VPNs, wireless technologies, VoIP, and Microsoft 365 services. Provides Tier 2/3 support, manages identity and endpoint security controls, maintains inventories and technical documentation, supports compliance efforts, and handles installations, cabling, and off-hours on-call duties.

Administer, maintain, and monitor LAN/WAN network systems and data circuits for the bank. Install, upgrade, and configure servers, routers, switches, firewalls, wireless APs and SDWAN. Troubleshoot network performance using analysis tools, manage Active Directory user permissions, ensure software license compliance, perform light scripting for automation, document changes, and coordinate repairs with vendors and IT team.