System Administrator – Onsite IT & Cloud Infrastructure

The 20 MSP; San Antonio (TX); On-site; USD 70,000 - 90,000; Full time

Job summary

The 20 MSP is seeking an experienced System Administrator to maintain and secure our client environments, ensuring reliable operation of computer systems, servers, workstations, and networking equipment. You will collaborate with internal teams to plan upgrades and optimize IT infrastructure.

Ideal candidates have 4–6 years in IT administration, strong AD/Azure, Microsoft 365, virtualization, and networking skills, plus experience with IT Glue and Kaseya BMS/VSA.

Qualifications

• Associate or Bachelor’s degree in Computer Science, Information Technology, System Administration, or related field.
• 4–6 years IT administration experience.
• System administration certifications in Microsoft or networking fields are a plus.
• Experience with virtualization (VMware/Hyper‑V) and networking software/hardware.

Responsibilities

• Maintain, configure, and operate computer systems, servers, workstations and networking equipment.
• Install and upgrade computer components and software.
• Troubleshoot hardware and software issues using diagnostics; document problems and resolutions.
• Provide documentation and technical specs to Project Team and Manager for planning/upgrades.
• Lead desktop and helpdesk support to resolve issues promptly with minimal disruptions.
• Travel onsite to client locations to provide hands-on support and implement solutions.

Skills

Active Directory and Azure AD

Microsoft 365 administration

Virtualization (VMware/Hyper-V)

Firewall management

Networking fundamentals

Active Directory & Group Policy

Education

Bachelor’s or Associate degree in CS/IT or related field

Tools

IT Glue

Kaseya BMS

Kaseya VSA

Job description

The 20 MSP is seeking an experienced System Administrator to maintain and secure our client environments, ensuring reliable operation of computer systems, servers, workstations, and networking equipment. You will collaborate with internal teams to plan upgrades and optimize IT infrastructure.

Ideal candidates have 4–6 years in IT administration, strong AD/Azure, Microsoft 365, virtualization, and networking skills, plus experience with IT Glue and Kaseya BMS/VSA.