Hands-on IT Manager: Infrastructure & Security Lead

AARC Environmental; Houston (TX); On-site; USD 90,000 - 120,000; Full time

Job summary

A leading environmental firm located in Houston is seeking an IT Manager – Infrastructure & Security to lead the design, maintenance, and support of technology infrastructure. This hands-on role requires supervising a small IT support team, managing technical troubleshooting, and ensuring the security of Microsoft 365 environments. Ideal candidates will have 5-10+ years of IT experience, strong networking skills, and a proactive approach to problem-solving. The role offers a chance to work in a dynamic environment emphasizing teamwork and innovative solutions.

Qualifications

• 5–10+ years of progressive IT experience including networking, systems administration, and end-user support.
• Strong hands-on hardware troubleshooting experience.
• Ability to work independently while leading a small team.

Responsibilities

• Supervise and mentor two desktop support technicians.
• Manage device lifecycle including procurement, provisioning, and replacement.
• Provide advanced troubleshooting support for devices and productivity platforms.

Skills

Windows troubleshooting

Networking knowledge

System administration

Microsoft 365 security

Documentation skills

Team leadership

Tools

Microsoft 365

Ubiquiti networking equipment

VoIP systems

Job description

A leading environmental firm located in Houston is seeking an IT Manager – Infrastructure & Security to lead the design, maintenance, and support of technology infrastructure. This hands-on role requires supervising a small IT support team, managing technical troubleshooting, and ensuring the security of Microsoft 365 environments. Ideal candidates will have 5-10+ years of IT experience, strong networking skills, and a proactive approach to problem-solving. The role offers a chance to work in a dynamic environment emphasizing teamwork and innovative solutions.