Job Summary:
GMi is a 100% employee-owned commercial construction company operating in Texas since 1978, seeking a Senior Systems Administrator to manage their technology environment. The role involves designing, maintaining, and supporting the network and security systems for a multi-site organization while leading the Help Desk function and ensuring optimal technology support for the workforce.
Responsibilities:
โข Design, implement, and maintain all aspects of GMi's network and infrastructure: LAN/WAN, switching, routing, firewall management, VPN, and wireless.
โข Own the security posture of GMi's technology environment including firewall policy, endpoint protection, MFA enforcement, access control, and compliance with company data security standards.
โข Own the full device lifecycle: procurement, imaging, deployment, management, and retirement including endpoint management via RMM, mobile device management via MDM, and inventory tracking across all GMi locations.
โข Oversee the tools and platforms that knowledge workers depend on daily โ Microsoft 365, identity and access management, VoIP, and collaboration systems.
โข Lead GMi's Help Desk function โ currently one technician, with anticipated growth in 2027.
โข Manage relationships with vendors, telecom providers, and hardware suppliers.
โข Maintain thorough, current documentation of GMi's technology environment.
Qualifications:
Required:
โข 5+ years of progressive IT experience in an environment of comparable size and complexity, with demonstrated ownership of infrastructure rather than component-level support work
โข Microsoft 365 administration (Exchange Online, Teams, SharePoint, Entra ID / Azure AD, Intune)
โข Windows Server environments: Active Directory, DNS, DHCP, Group Policy, file services
โข Network infrastructure: LAN/WAN, routing, switching, VLANs, firewall management (Fortinet, Palo Alto, or equivalent)
โข Remote monitoring and management (RMM) platforms
โข Mobile device management (MDM): Intune or equivalent
โข Multi-factor authentication (MFA) and identity governance
โข VoIP telephony systems administration
โข Endpoint security and patching
โข Backup and disaster recovery design and operation
โข Virtualization (VMware, Hyper-V, or equivalent)
โข SQL Server fundamentals sufficient for basic administration and troubleshooting
โข Ownership Mindset: You treat the environment as yours. You do not wait for things to break or for the CIO to identify a problem. You monitor, assess, and act. When something goes wrong, you own it through resolution.
โข Clear Communication: You can explain a technical issue to a non-technical executive in two sentences and write a change management plan that an IT auditor can follow. You communicate proactively โ your colleagues and leadership know what is happening without having to ask.
โข Judgment and Prioritization: In a complex environment with competing demands, you can accurately assess what is urgent versus important and allocate your time accordingly. You can push back with a reasoned argument when asked to do something that conflicts with sound practice.
โข Planning and Follow-Through: You are organized. Projects you start, you finish. You build schedules that are realistic, track against them, and communicate when something changes. You do not let things drift.
โข Reliability: People at GMi depend on technology working. That means they depend on you. You understand that consistency and follow-through are as important as technical skill.
โข Collaboration: You work across departments โ construction operations, project management, finance, HR โ and you understand their needs well enough to anticipate them. You are a resource, not a gatekeeper.
โข Documentation Discipline: You document before you are asked. You plan your work then work your plan. Changes, configurations, procedures, runbooks โ written, current, and findable.
Company:
GMi is a 100% employee-owned, client relationship driven, turnkey drywall, framing, and acoustical commercial construction company that has been operating throughout the State of Texas since 1978 with offices in the Dallas/Fort Worth Metroplex, Austin, Houston and San Antonio. Founded in 1978, the company is headquartered in Southlake, USA, with a team of 1001-5000 employees. The company is currently Late Stage.