LEAD SYSTEMS ADMINISTRATOR SKILLS, EXPERIENCE, AND JOB REQUIREMENTS

Published: Jan 29, 2026 - The Lead Systems Administrator has experience with Linux, Sun Solaris, Windows, and Unix systems, supported by strong knowledge of TCP/IP, WAN technologies, and Cisco networking devices, including routers, switches, firewalls, and VPN concentrators. This role requires proficiency in Microsoft Office and Visio, strong communication skills, including explaining technical concepts in Japanese, effective task prioritization, and the ability to produce clear documentation while supporting 24×7 operations through on-site or remote VPN/Citrix access. The administrator also demonstrates reliability in maintaining secure network environments and supporting OpenText production systems.

Summary of Lead Systems Administrator Knowledge and Qualifications on Resume

1. BA in Information Systems with 10 years of Experience

  • Must have Current DoD-8570 IAT Level 2 or higher certification (i.e., CompTIA Security+/CE, CASP, or CISSP).
  • Experience leading a team, tracking team task status, and helping team members complete tasks in support of IT systems.
  • Linux system administration experience demonstrated in a large, complex enterprise environment.
  • Understanding of and/or experience in network administration, installation of networking appliances, cabling and cable termination in a large enterprise IT environment.
  • Ability to provide and support data center activities, including, but not limited to, rack and stacking equipment, pulling cables, and terminating cables.
  • In-depth knowledge and experience with Virtual Environment administration.
  • Ability to quickly adapt to new system environments and interface with systems.
  • Must have an interest in working on a broad range of problems and technology and as part of a multi-disciplinary team.
  • Ability to work independently and at times as the only Leidos representative working directly with the customer IT team.
  • Demonstrated ability to stay organized, create standardized processes or technical guides, prioritize tasks, assign tasks to other and provide hands-on assistance to maintain and deploy IT systems.

2. BS in Computer Science with 9 years of Experience

  • Ability to communicate with program leaders and clients on status, issues, or technical designs.
  • Ability to follow documented processes and to provide updates to optimize or enhance the process.
  • Demonstrate good judgment and written/verbal communications.
  • Must have Red Hat Certified System Administrator (RHCSA)/Linux Professional Institute Certification (LPIC).
  • Experience managing HPE integrated BladeSystem enclosures, including Onboard Administrator, iLO and interconnect modules.
  • Experience managing and using Ansible automation tools.
  • Knowledge of Git and the Git version control model.
  • Understanding of PostgreSQL, including monitoring, managing and maintaining replicated databases.
  • Experience supporting, installing, and configuring enclave Fiber/Ethernet switches, HPE storage area networks (SAN)/network attached storage (NAS).
  • Experience with a ticketing system such as BMC Remedy and/or Atlassian JIRA.
  • Experience administering and configuring Windows Server 2012 R2 or higher.

3. BS in Information Technology with 7 years of Experience

  • Proven experience working in a high-tech development company as a System Administrator.
  • Experience and understanding of Atlassian Jira workflow.
  • Experience with Active Directory (ARS), Office365, JAMF, Microsoft SCCM, and Okta SSO.
  • Experience in troubleshooting both Windows and macOS environments.
  • Experience administering, utilizing, and troubleshooting VMWARE ESXi Hosts and environments.
  • Experience imaging machines utilizing PxEboot (Windows) and JAMF/MDM (Mac).
  • Base knowledge in Cisco network environments.
  • Fluent English verbal/writing skills.
  • Must have Microsoft MCSE/MCITP Certifications and a related BSc to Computers Science.
  • Base knowledge of NetApp.
  • Bash andPowerShell scripting knowledge.
  • Experience within AWS environments.
  • Excellent communication skills and patience.
  • Must have organizational skills.
  • Ability to pay attention to details.

4. BS in Network Engineering with 6 years of Experience

  • Experience as a ServiceNow Admin or application owner, configuring core ServiceNow modules, including Discovery.
  • Operational experience of Information Technology Infrastructure Library (ITIL) and IT Service Management (ITSM).
  • Experience developing integrations with the ServiceNow platform.
  • Strong familiarity with ServiceNow CMDB.
  • Experience working within an ITIL framework or similar Operations model.
  • Knowledge of ServiceNow Scripting/Advanced Scripting, especially JavaScript.
  • Knowledge of ServiceNow Fundamentals.
  • Knowledge of ServiceNow Platform Implementation.
  • Must have interpersonal and communication skills.

5. BA in Management Information Systems with 9 years of Experience

  • Expert-level knowledge in Windows Server, Active Directory and Exchange, and Office 365.
  • Working knowledge and experience with Virtualization technologies, Hyper-V, VMwarev Sphere (knowledge of Proxmox and Ceph).
  • Working knowledge and experience managing Windows 20162019 environments in a Systems Administrator role.
  • Working knowledge and experience with SD-WAN technology.
  • Knowledge of Palo Alto Networks (PAN) Prisma.
  • Working knowledge and experience in network infrastructure technology (Cisco routers, switches and firewalls).
  • Working knowledge and experience with scripting languages (PowerShell).
  • Working knowledge of computer hardware.
  • Knowledge of the Microsoft Visio Diagramming Tool.
  • Must have skills in troubleshooting and responding to security incidents.
  • Ability to mentor and coach team members and junior system administrators.
  • Ability to work flexible hours and on-call shifts.
  • Ability to follow up efficiently on customer complaints, questions, and requests.
  • Ability to project management organizes and schedules existing and projected work to ensure targeted deadlines are met.
  • Strong interpersonal and communication skills.

6. BS in Systems Engineering with 8 years of Experience

  • Experience in system administration in an open source Linux environment, with some software development experience.
  • Comprehensive knowledge of Linux with VMWare CentOS/RedHat environments.
  • Experience with Windows Server environments, M365 and Exchange administration.
  • Scripting experience with Python, Perl, and Bash.
  • Experience with automation and orchestration of new deployments and patching using tools such as Ansible, Puppet, or Chef.
  • Programming experience with some exposure to PHP, JavaScript and MySQL.
  • Knowledge of Internet technologies (TCP/IP, NFS, DNS, Firewalls, etc.)
  • Knowledge of IT security best practices, processes and tools.
  • Supervisory skills, including the ability to lead, encourage and provide support to team members.
  • Ability to work with considerable independence as well as work productively and supportively in a team environment.
  • Ability to keep current in the area of expertise.

7. BA in Computer Information Science with 6 years of Experience

  • Experience with version control systems, such as SVN or Git.
  • Strong familiarity with Grails, WordPress, or Drupal.
  • Working knowledge of curriculum delivery tools, especially Moodle.
  • Experience working in an ITIL-based service environment.
  • Strong customer service skills with the ability to communicate and deal effectively with students, staff, and faculty.
  • Proven ability to write utilities, scripts and web-based applications within an open source environment.
  • Proven system diagnostic and problem-solving skills.
  • Ability to integrate web-based applications with proprietary and open source software.
  • Excellent technical writing, interpersonal and communication skills.
  • Ability to multi-task and prioritize work between project assignments and support issues.
  • Ability to work flexible hours under exceptional circumstances.

8. BS in Telecommunications Engineering with 5 years of Experience

  • Experience in a IT Administrator role.
  • Experience with G Suite/Google Workspaces (including SSO with G Suite as the IdP).
  • Experience with ABM, MDM (Mosyle, JAMF, or the like).
  • Experience with Linux Server (Ubuntu).
  • Experience with Windows Workstation.
  • Must have Macintosh Sys Admin experience.
  • Experience with networking solutions from Meraki, UniFi and PFSense.
  • Experience with Zendesk, Zoom, Slack.
  • Ability to understand and represent the technology, the business, and the users.
  • Ability to be a self-starter, organized and detail-oriented with strong communication skills.
  • Enjoyment working in a highly collaborative, fast-paced, and dynamic environment.
  • Scripting experience in Bash and or Python.

9. BS in Computer Science with 8 years of Experience

  • Experience with Linux, Sun Solaris, Windows OS and Unix.
  • Working knowledge of TCP/IP.
  • Working knowledge of Cisco routers, switches, firewalls, load balancers, and VPN concentrators.
  • Working knowledge of WAN technologies.
  • Working knowledge of network security and network design.
  • Proficient in Microsoft Office applications, including network-specific design tools such as Visio.
  • Strong interpersonal and communication skills.
  • Ability to relate concepts effectively to employees and customers (in Japanese).
  • Ability to effectively prioritize workload and tasks to effectively meet established deadlines.
  • Ability to write clear and accurate documentation, well organized, and has attention to detail.
  • Willingness to provide support 24X7 either on location or on-call for any OpenText production issues.
  • Able to support the OpenText network remotely by use of secure VPN/Citrix technology.

10. BS in Cybersecurity with 5 years of Experience

  • Must have Windows Server Certification.
  • Experience as a Systems Administrator.
  • Knowledge of ITSM best practices for recording and tracking end-user incidents.
  • Must have PowerShell, security, and automation experiences.
  • Experience in Microsoft Office 365 Apps, SharePoint, Teams, and OneDrive.
  • Knowledge of Cloud infrastructure and applications.
  • Knowledge of RPA, Automation anywhere or other.
  • Knowledge of SFTP applications, MoveIT, or other.
  • Knowledge of Citrix and remote connectivity systems.
  • Strong analytical skills to provide timely solutions to a variety of issues.

11. BS in Software Engineering with 10 years of Experience

  • Ability to scope and specify technical solutions based on requirements.
  • Strong understanding of industry best practices and standards.
  • Experience in virtualization and system deployment.
  • Experience in the deployment, management, and troubleshooting of VMware vCloud Director and related products.
  • Experience with VMware vSphere 5,6,7 platform suites, design, configuration, administration, capacity planning, and troubleshooting.
  • Experience with Cisco UCS server hardware and other hardware, such as Dell and HP.
  • Experience in automation and configuration tools such as PowerShell (PowerCLI), Python, and Ansible.
  • Ability to participate in on-call rotation.
  • Must have a current VMware advanced certification.
  • Must have the current Cisco CCNP data center certification.

12. BS in Telecommunications Engineering with 7 years of Experience

  • Experience in administering big AD infrastructures.
  • Experience with mail systems (Microsoft Exchange, MDaemon).
  • Knowledge of the MS Office package.
  • Confident knowledge of PC hardware and servers.
  • Basic understanding of network technologies (LAN/WAN).
  • Understanding the network services DNS and DHCP.
  • Excellent and proven Citrix XenDesktop or NetScaler expertise.
  • Strong people management skills.
  • Ability to JAMF for configuration and automation.
  • Ability to manage Slack email.

13. BS in Computer Science with 9 years of Experience

  • Experience with the deployment and proactive maintenance of Windows Server and Linux operating systems in a production environment.
  • Proficient in the deployment and maintenance of virtualization environments using Microsoft Hyper-V and VMWare ESX technologies, including implementation of business continuity technologies and processes such as backup, recovery and hardware redundancy.
  • Experience in the deployment of server and network management, real-time alerting, monitoring and reporting tools.
  • Expert in the implementation and maintenance of Windows Active Directory infrastructure according to best practices guidelines, including the design and provisioning of group policies and security access and permissions.
  • Experience in the installation, configuration, and proactive maintenance of enterprise server, SAN and network hardware such as those from Cisco, Dell, HPE and Nimble Storage.
  • Experience spearheaded the deployment of secure remote access solutions such as two-factor authentication, reverse proxy, and remote desktop gateway solutions.
  • Strong understanding of security practices that involve network ports and protocols, VLAN segregation, firewall management, and operating system configurations.
  • Must have Microsoft Certified Solutions Expert (MCSE).
  • Must have Microsoft Certified Solutions Associate (MCSA).
  • Must have VMware Certification Professional (VCP).
  • Good judgment and written/verbal communications.

14. BS in Information Technology with 6 years of Experience

  • Experience with managing teams, preferably in a remote environment.
  • Must have Unix knowledge.
  • Experience in high-traffic environments.
  • Experience in Cloud providers (especially AWS).
  • Knowledge of Docker and Kubernetes.
  • Comfortable building CI/CD pipelines in GH Actions, Gitlab, or Jenkins.
  • Must have Security+ CE certification.
  • Working knowledge of Mac laptops.
  • Must have SSO experience.
  • Ability to fast-paced, team-oriented environment.
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