On-Site IT Systems & Network Administrator — 24x7 Ops

Kings III; Coppell (TX); On-site; USD 80,000 - 110,000; Full time

Benefits offered by this job

Medical insurance with HSA

PPO options

Dental coverage

Vision coverage

Life insurance

Disability insurance

401k with company match

Employee Assistance Program (EAP)

Telemedicine

Wellness program

Paid holidays

PTO

Referral bonus

Work life balance

Team building

Casual dress code

Job summary

Kings III is seeking an IT Systems & Network Administrator to support a mission-critical 24x7 emergency communications environment from our Coppell, TX headquarters. You will manage servers, networks, identity, and security tooling in both on-prem and cloud settings, ensuring high availability and secure operations.

You will own projects from planning through go-live, collaborate with a small IT team, and deliver reliable IT services across Microsoft 365, backup, SIP telecoms, and endpoints.

Qualifications

• High school diploma or equivalent.
• 3+ years administering servers, networks, identity, Microsoft 365, and security tooling.
• Hands-on experience with virtualized server environments (VMware or Hyper-V).
• Ability to communicate clearly with technical and non-technical audiences at all levels of the organization.
• Strong troubleshooting skills and a sense of ownership.
• A learner’s mindset with the ability to both teach and be taught.

Responsibilities

• Implement, maintain, and secure physical and virtual servers in Microsoft on-premises and cloud environments.
• Administer networks including switches, firewalls, wireless, SANs, and monitoring platforms.
• Support Active Directory and Azure AD (Entra ID) in a hybrid environment.
• Administer Microsoft 365 services and integrated applications.
• Maintain backup, disaster recovery, and business continuity systems.
• Support SIP-based telecom platforms and related infrastructure.
• Secure and manage endpoints and mobile devices using MDM and security tooling.
• Support security operations, incident response, and evidence collection for SOC 2 controls across access management, change management, and monitoring.
• Create and maintain technical documentation and runbooks.

Skills

Server administration

Network administration

AD/Azure AD

Microsoft 365

Security tooling

Backup & DR

VoIP/SIP (nice to have)

Documentation

Collaboration

Education

High school diploma or equivalent

Tools

VMware

Hyper-V

PowerShell

Veeam

Job description

Kings III is seeking an IT Systems & Network Administrator to support a mission-critical 24x7 emergency communications environment from our Coppell, TX headquarters. You will manage servers, networks, identity, and security tooling in both on-prem and cloud settings, ensuring high availability and secure operations.

You will own projects from planning through go-live, collaborate with a small IT team, and deliver reliable IT services across Microsoft 365, backup, SIP telecoms, and endpoints.