Senior System Admin

Post Date

Jul 24, 2026

Location

Houston,
Texas

ZIP/Postal Code

77002
US
Sep 23, 2026 Insight Global

Job Type

Contract

Category

Network Engineer

Req #

FTL-f630e382-ee1f-4a9a-ad87-7924f03d0357

Pay Rate

$42 - $53 (hourly estimate)

Job Description

We are seeking a highly skilled Hybrid Infrastructure Administrator to manage, maintain, and modernize our enterprise infrastructure across both on-premises and cloud environments. The ideal candidate will possess deep expertise in traditional systems administration, including servers, virtualization, networking, storage, Active Directory, and firewall management, while also demonstrating hands-on experience with public cloud platforms such as AWS, Google Cloud Platform (GCP), Microsoft Azure, or equivalent cloud technologies.

This role is responsible for ensuring the reliability, security, scalability, and performance of enterprise infrastructure supporting critical business operations. The successful candidate will have experience designing, implementing, and supporting hybrid infrastructure solutions that integrate on-premises systems with cloud services. Strong expertise in VMware, infrastructure automation, Infrastructure as Code (IaC), vendor management, and project delivery is highly desirable.

The ideal candidate is a self-starter with excellent technical, analytical, and communication skills who can effectively support operational requirements while driving infrastructure modernization initiatives.

Key responsibilities:
• Administer and support enterprise infrastructure across on-prem and cloud environments
• Manage Windows/Linux servers, VMware, Active Directory, networking, and storage
• Support AWS/Azure/GCP cloud services and hybrid infrastructure initiatives
• Maintain security, firewall configurations, patching, and system reliability
• Automate infrastructure processes through scripting and Infrastructure as Code
• Participate in infrastructure upgrades, migrations, and modernization projects
• Work with vendors and internal stakeholders to deliver infrastructure solutions

We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please send a request to HR@insightglobal.com.To learn more about how we collect, keep, and process your private information, please review Insight Global's Workforce Privacy Policy: https://insightglobal.com/workforce-privacy-policy/.

Required Skills & Experience

Requirements
• 7+ years of experience in Systems Administration, Infrastructure Administration, or Network Administration
• Strong experience supporting enterprise Windows/Linux servers
• Deep knowledge of Active Directory, DNS, DHCP, Group Policy, networking, and storage
• Hands-on experience with VMware
• Experience supporting hybrid environments (on-prem + cloud)
• Experience with AWS, Azure, or GCP
• Experience with firewall administration (Palo Alto or SonicWall preferred)
• Scripting/automation experience using PowerShell, Bash, or Python
• Strong troubleshooting and infrastructure project experience

Nice to Have Skills & Experience

• Terraform, Ansible, CloudFormation, or other IaC tools
• Enterprise storage platforms (Isilon, VxRail, Data Domain, Avamar, etc.)
• Docker/Kubernetes
• Cloud or VMware certifications

Benefit packages for this role will start on the 1st day of employment and include medical, dental, and vision insurance, as well as HSA, FSA, and DCFSA account options, and 401k retirement account access with employer matching. Employees in this role are also entitled to paid sick leave and/or other paid time off as provided by applicable law.