IT Systems Administrator

As an IT Systems Administrator, you will own the health, security, and performance of our on-premises and cloud infrastructure. You'll collaborate with cross-functional teams to ensure mission-critical systems are resilient, scalable, and aligned with business objectives.

Apply now, read the job details by scrolling down Double check you have the necessary skills before sending an application.

• Key Responsibilities
• Server & Virtualization Management – Install, configure, patch, and monitor Windows / Linux servers and virtualization platforms (VMware, Hyper-V, or equivalent).
• Cloud Operations – Administer Microsoft 365 / Azure (or AWS / GCP) services, including identity, security, and cost optimization.
• Network & Security – Maintain LAN / WAN, VPN, firewalls, and switch configurations; enforce security best practices and compliance standards (e.g., CIS, NIST).
• Backup & Disaster Recovery – Design and test backup, replication, and DR strategies to meet defined RPO / RTO targets.
• Automation & Scripting – Develop PowerShell / Bash scripts and leverage configuration-management tools to automate routine tasks.
• Monitoring & Troubleshooting – Use SolarWinds, Event Logs, Alerts, and performance-monitoring tools to detect, diagnose, and resolve system issues proactively.
• User & Endpoint Support – Serve as Tier II escalation for complex workstation, mobile, and application problems.
• Documentation & Compliance – Create and maintain SOPs, diagrams, and asset inventories; assist with audits and policy enforcement.
• Project Delivery – Lead or contribute to infrastructure upgrades, migrations, and new technology rollouts on time and within budget.
• Mobile Device Management & Endpoint Security – Manage MDM platforms (e.g., Intune, Duo) and enforce security policies for mobile and BYOD devices.
• SaaS / Paas Administration – Administer core SaaS / Paas platforms (e.g., Mimecast, Ring Central), including SSO integration and license management.
• Vendor & License Management – Coordinate with vendors, track renewals, and optimize software and hardware licensing agreements.
• Security Compliance & Auditing – Conduct regular vulnerability scans, coordinate penetration testing, and remediate findings to maintain compliance.
• Mentorship & Knowledge Transfer – Mentor junior IT staff and deliver training sessions for end-users on new technologies and best practices.
• Excellent interpersonal and communication skills, with the ability to explain technical concepts to non-technical users.
• Administration and support of Microsoft SharePoint, Teams, and OneDrive environments.
• Excellent problem-solving abilities with a strong focus on root cause analysis and proactive resolution.
• Willingness to travel occasionally to company locations or data centers as needed.
• Ability to work overtime occasionally to support critical projects or resolve high-priority incidents.
• A Must Requirement to be considered (No consideration will be afforded for candidates not having the below) :
• Bachelor's degree in Computer Science, Information Technology, or related field.
• Only California Residents are being considered. You must live within 1 : 15 hours of our office in Santa Fe Springs, CA.
• Required Qualifications :
• Bachelor's degree in Computer Science, Information Technology, or related field. A completed Degree is required from a recognized university to be considered.
• 3+ years administering Windows and / or Linux server environments in production.
• Hands-on experience with virtualization (VMware ESXi or Hyper-V).
• Proficiency with Active Directory, Group Policy, DNS, DHCP, and PowerShell.
• Solid understanding of TCP / IP networking, VLANs, VPNs, and firewall rules.
• Demonstrated knowledge of backup solutions and DR planning.
• Familiarity with security frameworks and patch-management best practices.
• Preferred / Bonus Skills :
• Certifications such as MCSA / MCSE, Azure Administrator (AZ-104), AWS SysOps, VMware VCP, or CompTIA Security+.
• Bilingual (English and Spanish) is a plus.
• Exposure to ITIL processes and ticketing systems (ConnectWise Manage).
• Exposure to ConnectWise Control RMM.
• Scripting in Python, PowerShell Core, or Bash for automation and reporting.
• Experience :
• IT support : 3 years (Preferred)
• Willingness to travel :
• Up to 5% domestically and internationally.
• What We Offer :

Advanced Ground Systems Engineering (AGSE) offers an excellent benefits package, which includes healthcare, a 401(k) plan, and tuition reimbursement. To learn more about AGSE and our products or services, please visit us on the internet at is required by law in certain jurisdictions to include a pay scale in the job posting for this position. "Pay scale" means the salary or hourly range that AGSE reasonably expects to pay for this position; it is neither a promise nor a guarantee of the compensation that the successful candidate will receive. The pay scale for this position considers the wide range of factors that AGSE considers in making compensation decisions, including, without limitation : skill set, experience, and training, licensure and certifications, and other business and organizational needs. Please note that it is not typical for AGSE employees to be at or near the top of the pay scale for their role - especially as a new hire - and compensation decisions are dependent on the facts and circumstances of each case.

Range :

$90,000-$100,000

plus

a discretionary bonus up

10

% of base. Total Compensation, incorporating the discretionary bonus, can be as high as $110,000.00.

AGSE is required by law in certain jurisdictions to include a pay scale in the job posting for this position. "Pay scale" means the salary or hourly range that AGSE reasonably expects to pay for this position; it is neither a promise nor a guarantee of the compensation that the successful candidate will receive. The pay scale for this position considers the wide range of factors that AGSE considers in making compensation decisions, including, without limitation : skill set, experience, and training, licensure and certifications, and other business and organizational needs. Please note that it is not typical for AGSE employees to be at or near the top of the pay scale for their role - especially as a new hire - and compensation decisions are dependent on the facts and circumstances of each case.

Job Type : Full-time

Pay : $90,000.00 - $100,000.00 per year

Benefits :

401(k)

401(k) matching

Dental insurance

Flexible spending account

Health insurance

Paid time off

Tuition reimbursement

Vision insurance

Application Question(s) :

Have you obtained your Bachelor's degree in Computer Science, Information Technology, or related field? xmcpwfu

Are you willing to travel up to 5% domestically and internationally?

Work Location : In person