We are a well-established Managed Services Provider is seeking a Senior Systems Administrator with strong MSP experience and the ability to work hands-on inside client environments. This role is primarily onsite with clients throughout Anaheim and Buena Park, making it ideal for someone who enjoys building relationships, solving recurring issues, and driving real technical improvements. You will serve as the dedicated onsite technical expert, ensuring environments remain stable, secure, and aligned with modern Microsoft standards.
What You Will Do
Deliver hands-on support inside client environments, resolving issues and preventing recurrence
Deploy and configure hardware, software, and Microsoft ecosystem technologies including Microsoft 365, Azure Entra ID, and Windows Server
Implement changes, perform monthly environment hardening, and lead onsite technical projects
Conduct local audits and maintain documentation to ensure client environments meet MSP standards
Identify recurring problems and collaborate with internal teams to deliver long-term fixes
Act as the trusted technical resource for your assigned clients, building strong relationships and clear communication
What You Bring
Five or more years of IT support or systems administration experience
Prior experience working in a Managed Service Provider environment
Strong skills with Microsoft 365, Azure Entra ID, Windows Server, networking fundamentals, and workstation support
Ability to work independently onsite and communicate clearly with nontechnical stakeholders
Familiarity with PSA and RMM tools such as ConnectWise
A proactive, organized mindset with strong documentation habits
Benefits
Health insurance starting day one
Vision, dental, life, accident, and disability options
401k with company match
PTO, holidays, and additional paid programs
Laptop and cellphone reimbursement
Certification reimbursement with salary increases for every passed certification
System Administrator • Anaheim, CA, United States