🚀We are seeking a Systems Administrator to play a critical, hands-on role in supporting and advancing our IT infrastructure across both client environments and internal operations. This position is ideal for someone who thrives in a fast‑paced MSP environment, enjoys working across diverse technologies, and takes pride in delivering reliable, secure, and scalable systems.  As a Systems Administrator, you’ll be a technical escalation point for complex issues, a trusted partner in infrastructure projects, and a key contributor to continuous improvement in service delivery and internal IT excellence.

At Zirrus, we believe great technology starts with great people. You’ll work alongside experienced professionals in a collaborative, fast‑moving environment where your expertise is valued and your growth is supported. We invest in our team so they can focus on doing their best work—without unnecessary friction.

What You’ll Do

• Administer Microsoft 365, Windows Server, Active Directory, and Group Policy
• Manage Linux servers (Ubuntu, CentOS, RHEL)
• Support Azure and/or AWS cloud infrastructure
• Troubleshoot and resolve escalated Level 2–3 system and network issues
• Monitor RMM/NMS alerts and meet SLA requirements
• Deploy and support virtualization (VMware vSphere/ESXi)
• Configure and support network infrastructure (firewalls, switches, APs)
• Assist with IT projects, automation, documentation, and security initiatives

What We’re Looking For

• 5+ years of experience in an MSP or IT service provider environment
• Strong experience with Microsoft 365, Linux, cloud platforms, networking, and security
• Scripting experience (PowerShell, Bash, or Python) a plus
• Bachelor’s degree or equivalent experience
• Relevant certifications preferred (Microsoft, CompTIA, Linux+, Azure/AWS)

Why Work at Zirrus

• Outstanding Medical Coverage – No deductible and no co‑pay
• 401(k) with up to 9% company match
• Work with modern technologies in a collaborative, professional environment
• Opportunity to make a real impact across client and internal systems