Senior Systems Administrator (Client Facing MSP) (Anaheim)

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