Senior IT Systems Administrator – Core Infra & Security

Koitecc Solutions; Northern (KY); Hybrid; USD 90,000 - 120,000; Full time

Benefits offered by this job

Health insurance

401k

Pension

Paid vacation

Job summary

Koitecc Solutions seeks a Senior IT Systems Administrator to ensure the stability, security, and performance of core IT and OT systems. You will manage servers, virtualization, networking, Active Directory, and Microsoft 365, while delivering proactive support and training.

The role emphasizes disaster recovery, road-mapping, and upgrades, with a strong focus on documentation and security culture. Office-based in Cando or Carrington, with a collaborative team and ongoing modernization efforts.

Qualifications

• Bachelor's degree in Computer Science, IT, Engineering or related field.
• 5+ years of systems administration, network engineering or similar IT infra role.
• Experience with IT/OT environments and security-focused practices.
• Experience with M365, Active Directory, DNS, DHCP and enterprise networks.

Responsibilities

• Architect and manage core infrastructure.
• Lead network operations and security.
• Oversee disaster recovery and incident response.
• Support and train users; document procedures.
• Evaluate emerging tech and AI for potential adoption.
• Ensure compliance with security standards.

Skills

Security best practices

Automation

Documentation

Team leadership

Communication

Disaster recovery planning

Incident response

IT/OT networking

Active Directory

Education

Bachelor's degree in Computer Science/IT/Engineering

Tools

Cisco Meraki

Veeam

Hyper-V

NISC

SQL

Power BI

Scripting

Windows Server

Linux

Job description

Koitecc Solutions seeks a Senior IT Systems Administrator to ensure the stability, security, and performance of core IT and OT systems. You will manage servers, virtualization, networking, Active Directory, and Microsoft 365, while delivering proactive support and training.

The role emphasizes disaster recovery, road-mapping, and upgrades, with a strong focus on documentation and security culture. Office-based in Cando or Carrington, with a collaborative team and ongoing modernization efforts.