Senior Systems Administrator - Infra & Automation Leader

Luma Financial Technologies; Cincinnati (OH); On-site; USD 105,000 - 160,000; Full time

Job summary

Luma Financial Technologies in Cincinnati is seeking a Senior Systems Administrator to ensure stability, security, and scalability of our enterprise environments. You will lead infrastructure upgrades, automate routine tasks, and serve as the highest tier of internal technical support.

The ideal candidate has 5–10 years of experience in large-scale IT, deep knowledge of Windows and Mac OS, virtualization (VMware/Hyper-V), and cloud platforms (AWS/Azure).

Qualifications

• Bachelor’s degree in Computer Science, IT, or related field or equivalent experience.
• 5–10 years of professional systems administration in medium to large enterprises.
• Advanced Windows and Mac OS administration, Active Directory, and AWS/Azure.
• Experience with VMware/Hyper‑V and cloud deployments.
• Strong networking fundamentals and security/compliance skills.
• Excellent problem-solving and communication skills.

Responsibilities

• Design, implement, and maintain enterprise server, storage, and network configurations.
• Automate tasks with PowerShell, Bash, or Python to improve efficiency.
• Apply security patches, manage access controls, and perform vulnerability scans.
• Develop disaster recovery plans and test data backup and DR procedures.
• Monitor performance and optimize resource allocations for high availability.
• Provide Tier 2/3 technical support and mentor junior staff.
• Coordinate with vendors and manage system migrations and projects.

Skills

Windows & Mac OS administration

Active Directory & Group Policy

VMware / Hyper-V virtualization

AWS / Azure cloud

Networking fundamentals

Scripting (PowerShell, Bash, Python)

Security & compliance

Technical leadership & mentoring

Education

Bachelor’s degree in Computer Science or related field

Tools

Microsoft Entra ID

Okta

Rippling

Snowflake

Job description

Luma Financial Technologies in Cincinnati is seeking a Senior Systems Administrator to ensure stability, security, and scalability of our enterprise environments. You will lead infrastructure upgrades, automate routine tasks, and serve as the highest tier of internal technical support.

The ideal candidate has 5–10 years of experience in large-scale IT, deep knowledge of Windows and Mac OS, virtualization (VMware/Hyper-V), and cloud platforms (AWS/Azure).