System Administrator Jobs

About The Position

Requirements

• 5+ years of experience in a System Administrator or infrastructure-focused role.
• Strong hands-on experience with VMware vSphere.
• Strong experience administering Windows Server environments.
• Solid experience administering Linux servers.
• Experience managing enterprise-grade firewalls, VPNs, and WAFs.
• Strong understanding of networking fundamentals (TCP/IP, routing, DNS, VLANs).
• Experience with monitoring and troubleshooting complex systems.
• Strong troubleshooting and analytical skills.
• Ability to prioritize and manage multiple tasks.
• Clear communication with both technical and non-technical stakeholders.
• Detail-oriented with strong documentation habits.

Nice To Haves

• Experience in enterprise or hybrid IT environments.
• Scripting or automation experience (PowerShell, Bash, Python).
• Experience working in highly available or business-critical systems.
• Relevant certifications (VMware, Microsoft, Linux, networking).

Responsibilities

• Administer and maintain VMware vSphere infrastructure, including host management, VM provisioning, performance tuning, and capacity planning.
• Install, configure, manage, and support Windows Server environments (Active Directory, DNS, DHCP, Group Policy, file and print services).
• Administer and support Linux servers (e.g., RHEL, Ubuntu, or equivalent).
• Perform system patching, upgrades, maintenance, and lifecycle management.
• Monitor system health, availability, and performance; troubleshoot and resolve infrastructure issues.
• Plan and execute infrastructure upgrades and improvements.
• Configure, manage, and maintain advanced firewalls (e.g., next-generation firewalls), including rule sets, NAT, routing, and logging.
• Administer VPN solutions (site-to-site and remote access).
• Manage and maintain Web Application Firewalls (WAFs) to support application availability and protection.
• Maintain reliable network connectivity across environments.
• Implement and maintain backup and disaster recovery solutions.
• Perform backup validation, restore testing, and disaster recovery exercises.
• Ensure system availability, redundancy, and recoverability.
• Develop and maintain scripts or automation using PowerShell, Bash, or similar tools.
• Create and maintain system documentation, diagrams, and operational runbooks.
• Provide Tier 2 / Tier 3 support for infrastructure-related incidents and service requests.
• Participate in on-call rotations and scheduled after-hours maintenance.

Benefits

• Company-paid medical and dental insurance
• Vacation and holiday pay
• 401(k) retirement plan with employer matching
• Group Life Insurance
• Tuition Assistance Program
• Credit union membership
• Corporate discounted membership at 24 HR Fitness & UFC Gym
• Corporate discounts with AAA and car rental agencies
• Entertainment discounts including movie tickets, Universal Studios, Disneyland and more