Top Systems Administrator Jobs

Administer and maintain IBM i (AS/400) platform to ensure stability, security, performance, and high availability for RPG-based ERP/WMS. Own DR/replication (Maxava), backup (BRMS), system upgrades, performance tuning, security/audit, automation (CL/QShell/PASE/Python/Rexx), integrations (SFTP/APIs/EDI), and documentation/runbooks across hybrid on-prem Power Systems and PowerVS cloud environments.

Lead and perform expert Red Hat Linux system administration for a DoW HPC environment: manage RHEL and Satellite, automate with Ansible, install/upgrade software, tune performance, conduct testing, maintain compliance and documentation, and mentor a team of Linux administrators.

Support users of PLM software by troubleshooting issues, managing support tickets, training users, and ensuring process adherence. Engage with teams to communicate and standardize information.

The Linux Systems Administrator is responsible for complex system analysis, maintenance, installation, and troubleshooting of enterprise servers and storage solutions. Mentoring is required for this role with significant experience in administration and support.

The role involves managing Win server migrations, VMware infrastructure, and data backup recovery, while supporting internal networks and users.

Monitor and manage interface projects, provide troubleshooting support for Cerner applications, oversee project associates, maintain interface architecture integrity, and ensure adherence to security policies while delivering quality custom interfaces.

The role involves managing VMware and Win servers, data backup and recovery, and physical to virtual migrations, requiring extensive systems administration experience.

Manage and maintain Linux-based systems, ensuring security and stability, performing updates, troubleshooting issues, and automating tasks.

The Senior Linux Systems Administrator will design, install, configure, and maintain servers, troubleshoot problems, and support large-scale applications while focusing on system integration and stability.

Coordinate IT systems and support for a hybrid workforce: manage macOS and Windows device deployments, Microsoft 365 and identity systems, monitor endpoint health, maintain office network infrastructure, own onboarding/offboarding and device inventory, automate workflows via scripting/APIs, maintain SOC 2/ISO 27001 evidence, and coordinate with Security, HR, and IT.

Provide advanced systems administration and network/infrastructure support in a DoD/IC environment, ensuring high availability, security, STIG/IAVA compliance, virtualization management, automation with Python/Ansible, firewall and VPN administration, vulnerability scanning/remediation, and operational readiness for classified enterprise systems.

Administer and optimize Salesforce, Gainsight, and Pendo for Brands and Retailers services. Maintain integrations and data consistency, configure AI capabilities, troubleshoot platform and data issues, build scalable automations, and support Services teams to improve adoption and operational efficiency.

Maintain and administer SQL Server and PostgreSQL databases, implement automation jobs, manage a VMware virtualized datacenter, tune servers and storage, perform patching/backup/restore and security tasks, troubleshoot outages and tickets (Serena), document configurations, and provide technical guidance to Tier 1/2 personnel.

Maintain and secure on-premises and cloud servers, networks, identity, Microsoft 365, backups, telecom, and endpoints for a 24x7 emergency communications environment. Administer virtualization, SANs, firewalls, monitoring, incident response, SOC 2 controls, and create runbooks. Own projects from planning through go-live and provide after-hours callback support for critical issues.

Senior Linux Systems Administrator responsible for Ubuntu/Debian server and network administration, virtualization (VMware), building AWS infrastructure, automation (Puppet, Kickstart), monitoring (Nagios/Ganglia/Cacti), scripting, firewall/load balancer configuration, troubleshooting, documentation, and project reporting during a data center rebuild and migration.

The IT Systems Administrator will manage on-site IT systems, troubleshoot issues, optimize network performance, and collaborate with HQ IT and international teams to ensure smooth operations.

The role involves Unix/Linux System Administration, managing Oracle CRS, providing user support, and contributing to incident, problem, and change management processes.

The IT Systems Administrator manages Centri's technology ecosystem, ensuring security and performance across Microsoft 365 and Azure environments, and integrates automation tools. Responsibilities include security management, enterprise application support, and optimizing system performance.

As an IT Systems Administrator Intern, you will provide Helpdesk support, manage user onboarding, assist in troubleshooting, and collaborate with full-time administrators on infrastructure projects.

Serve as the primary CityTime administrator for DOHMH and OCME: implement hires, create orgs/schedules, assign approvers, clean organizational chart, troubleshoot via Remedy/ServiceNow with OPA, run CHRMS reports for leave auditing, coordinate comp time credits and expirations, process separations, and handle special payroll-related projects.

The IT Systems Administrator will manage and secure IT systems, provide user support, ensure cybersecurity compliance, and collaborate on process improvements.