Senior System Administrator

Insight Global; Cleveland (OH); Hybrid; USD 85,000 - 125,000; Full time

Job summary

Insight Global is seeking a Senior System Administrator in Cleveland, Ohio. This hands-on role involves managing a hybrid infrastructure environment, focusing on operational stability and improvement initiatives. The ideal candidate will have 5 to 10 years of experience in systems administration, with strong skills in Windows Server, Active Directory, virtualization platforms like Hyper-V or VMware, and networking technologies. This position offers potential growth into a Team Lead position while working closely with junior team members.

Qualifications

• 5–10+ years of progressive experience in systems or infrastructure administration.
• Strong hands-on experience with Windows Server & Active Directory.
• Comfortable operating as a generalist across infrastructure and networking domains.

Responsibilities

• Own and support the full infrastructure stack across systems, virtualization, storage, and networking/security.
• Administer Windows Server environments, including Active Directory and DNS/DHCP.
• Provide hands-on support for networking components including Cisco switches.

Skills

Windows Server & Active Directory

Hyper-V and/or VMware

NetApp

Veeam

Windows 11 management

Apple Business Manager

Cisco networking

Palo Alto

SD-WAN

VPNs

Job description

We’re seeking a Senior System Administrator to own and evolve a hybrid infrastructure environment (on‑prem plus Azure). This is a hands‑on senior role with a clear runway into a Team Lead position as the environment and team continue to mature. This person will take ownership of day‑to‑day infrastructure stability while driving improvement initiatives focused on simplification, consolidation, and bringing systems in‑house.

Day-to-Day

Own and support the full infrastructure stack across systems, virtualization, storage, backup, and core networking/security.

Administer Windows Server environments, including Active Directory, GPOs, DNS/DHCP, and identity services.

Support Hyper‑V and/or VMware platforms, including performance troubleshooting and capacity planning.

Manage storage and data protection using NetApp and Veeam.

Support endpoint management for Windows 11 and Apple device workflows via Apple Business Manager.

Provide hands‑on support for networking and security components, including:

• Cisco switches
• VPNs and Azure VPN tunnels

Support and improve a hybrid environment (on‑prem plus Azure) with a focus on reliability and standardization.

Participate in initiatives to consolidate tools, simplify architecture, and reduce technical sprawl.

Help plan and execute efforts to move or bring infrastructure in‑house.

Mentor junior team members and contribute to stronger operational practices.

Follow disciplined change management practices, emphasizing stability and risk awareness.

• 100 servers
• 50–70 TB of data
• Hybrid infrastructure (on‑prem with some Azure)

Required Skills and Experience

5–10+ years of progressive experience in systems or infrastructure administration.

Strong hands‑on experience with:

• Windows Server & Active Directory
• Hyper‑V and/or VMware
• NetApp
• Veeam
• Windows 11 management
• Apple Business Manager

Working knowledge of core networking/security technologies (Cisco, Palo Alto, SD‑WAN, VPNs).

Comfortable operating as a generalist across infrastructure and networking domains.

We are a company committed to creating inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity employer that believes everyone matters. Qualified candidates will receive consideration for employment opportunities without regard to race, religion, sex, age, marital status, national origin, sexual orientation, citizenship status, disability, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please send a request to Human Resources Request Form. The EEOC "Know Your Rights" Poster is available here.

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