Senior Systems Administrator – Cloud & Security

Novum Energy; Houston (TX); On-site; USD 85,000 - 120,000; Full time

Job summary

Novum Energy is seeking an experienced systems administrator to maintain Windows Server infrastructure, AD, and Group Policy. The role supports Microsoft 365, Azure, and Entra ID environments, while monitoring endpoints with EDR tooling and reviewing security logs.

You will assist with security hardening, manage routine maintenance and backups, and serve as the go-to for day-to-day IT support. Collaboration with SOC vendors and MSPs is expected, with strong emphasis on documentation and

Qualifications

• 5+ years of experience in a systems administration or similar IT role.
• Solid hands-on experience with Windows Server administration and Active Directory.
• Experience with Microsoft 365 and Azure/Entra ID environments.
• Familiarity with endpoint security tooling and basic log analysis.
• PowerShell scripting for administration and automation.
• Strong troubleshooting skills and ability to work independently.

Responsibilities

• Administer and maintain Windows Server infrastructure, Active Directory, and Group Policy.
• Support and manage Microsoft 365, Azure, and Entra ID environments.
• Monitor endpoints and respond to alerts using our EDR tooling.
• Review and triage security logs and events, elevate where needed.
• Assist with security hardening initiatives (firewall rules, MFA rollout, patch management).
• Handle routine server maintenance, backups, and patching.
• Serve as a primary point of contact for day-to-day IT support including hardware, software, connectivity, and user account issues.
• Troubleshoot and resolve end-user problems in a timely manner.
• Manage user onboarding and offboarding, including account provisioning and device setup.
• Work alongside external security vendors and managed service providers as needed.
• Help document systems, processes, and configurations.

Skills

Windows Server

Active Directory

Microsoft 365/Azure/Entra ID

Endpoint security tooling

PowerShell scripting

Troubleshooting

RMM tools

Meraki networking

SIEM/log aggregation

Security certifications

Tools

Kaseya VSA

Meraki

Job description

Novum Energy is seeking an experienced systems administrator to maintain Windows Server infrastructure, AD, and Group Policy. The role supports Microsoft 365, Azure, and Entra ID environments, while monitoring endpoints with EDR tooling and reviewing security logs.

You will assist with security hardening, manage routine maintenance and backups, and serve as the go-to for day-to-day IT support. Collaboration with SOC vendors and MSPs is expected, with strong emphasis on documentation and