Senior Systems Administrator — Lead Enterprise IT & Security

Luma Financial Technologies, LLC; Cincinnati (OH); On-site; USD 105,000 - 130,000; Full time

Job summary

Luma Financial Technologies is seeking a Senior Systems Administrator to ensure stability, security, and scalability of our enterprise environments in Cincinnati. You will lead upgrades, automate tasks, and serve as the top escalation point for complex engineering issues.

The role requires 5–10 years of systems administration in large environments, deep knowledge of Windows/Mac OS, Active Directory, virtualization (VMware/Hyper‑V), and cloud platforms (AWS/Azure).

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or a related discipline
• 5–10 years of professional systems administration experience in a medium to large enterprise environments
• Advanced expertise with Windows and Mac OS environments, Active Directory, Group Policies, or AWS deployments
• Deep experience with virtualization platforms like VMware or Hyper‑V, plus cloud environments such as AWS or Azure
• Strong networking fundamentals (TCP/IP, DNS, DHCP, VLANs, firewalls)
• Excellent root‑cause problem‑solving capabilities with clear communication to non‑technical stakeholders

Responsibilities

• Design, plan, test, and implement enterprise server, storage, and network configurations across physical, virtual, and cloud environments
• Develop scripts using PowerShell, Bash, or Python to automate administrative tasks
• Implement security patching, manage access via Active Directory, and perform vulnerability scanning
• Design, test, and maintain data backup schedules and business continuity plans
• Monitor infrastructure health and optimize resource allocations for high availability
• Serve as escalation point for Tier 2/3 engineering problems and mentor juniors
• Coordinate with external vendors to evaluate technologies and manage system migrations

Skills

Problem-solving

Communication

Education

Bachelor’s degree in Computer Science or related field

Tools

VMware

Hyper-V

AWS

Azure

Windows OS

Mac OS

Job description

Luma Financial Technologies is seeking a Senior Systems Administrator to ensure stability, security, and scalability of our enterprise environments in Cincinnati. You will lead upgrades, automate tasks, and serve as the top escalation point for complex engineering issues.

The role requires 5–10 years of systems administration in large environments, deep knowledge of Windows/Mac OS, Active Directory, virtualization (VMware/Hyper‑V), and cloud platforms (AWS/Azure).