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Systems Administrator

Remote / Online - Candidates ideally in
Dallas, Dallas County, Texas, 75215, USA
Listing for: Suntex-Marina-Investors,-LLC
Remote/Work from Home position
Listed on 2026-09-13
Job specializations:
  • IT/Tech
    Systems Administrator, Network Administrator, IT Support, Cybersecurity
Salary/Wage Range or Industry Benchmark: 75000 - 110000 USD Yearly USD 75000.00 110000.00 YEAR
Job Description & How to Apply Below

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Systems Administrator

Professional Home Office, Dallas, TX, US

3 days ago Requisition

JOB posting

JOB TITLE: Systems Administrator

DEPARTMENT: Information Technology

REPORTS TO: Senior Manager, Infrastructure

POSITION PURPOSE

The Systems Administrator is a vital member of the IT team with a primary focus on the day-to-day management and support of the Company’s server, cloud, and network infrastructure that spans across multiple sites. This role demands a hands-on approach to ensure the stability, integrity, and efficient operation of the systems, applications, and network that support core organizational functions across various locations.

This position emphasizes operational aspects such as administration, monitoring, maintenance, and troubleshooting of servers, endpoints, identity services, and network devices. It also involves interfacing with other members of the IT team and liaising with third party providers, adapting systems and network strategies to support the Company’s growth through acquisitions and expansion of infrastructure reach.

DUTIES AND RESPONSIBILITIES
  • Systems Administration and Support
    • Administer, maintain, and troubleshoot physical and virtual servers, operating systems (Windows Server, Linux), and core business applications to ensure reliable day-to-day operations
    • Manager user accounts, groups, permissions, and access controls through Active Directory, Azure AD/Entra , and Microsoft 365
    • Perform routine system administration tasks, including patch management, software updates, backups, and disaster recovery testing to safeguard data and maintain business continuity
    • Provide endpoint support for desktops, laptops, and peripherals, including imaging, deployment, and resolution of hardware and software issues
  • Network Administration and Support
    • Assist with the administration, maintenance, and troubleshooting of the network infrastructure across multiple sites and different ISP vendors, including routers, switches, firewalls, and other associated equipment primarily using Meraki technology
    • Monitor network and system performance, ensuring availability and reliability, and respond promptly to outages and other issues
    • Configure, manage, and troubleshoot Ring Central VOIP services, ensuring optimal performance and reliability
  • Operational Excellence
    • Provide hands-on support for all systems and network-related issues, acting as an escalation point of contact for internal teams and external partners
    • Collaborate with IT team members to ensure smooth and reliable operation of servers, software, and systems for fulfilling business objectives and processes
  • Security and Compliance
    • Assist in system and network security measures, including managing firewalls, endpoint protection, and regular security audits to protect data and infrastructure
    • Support adherence to industry standards and compliance requirements, such as PCI-DSS, through diligent monitoring and documentation
  • Documentation and Communication
    • Maintain detailed documentation for system and network configurations, solutions, and processes
    • Coordinate with technology vendors, including Cisco, AT&T, and other service providers, to resolve issues and ensure technology solutions are aligned with business needs and deliver optimal performance
  • All other duties as assigned
  • EDUCATION AND EXPERIENCE
  • A degree in information technology, computer science, network engineering, cybersecurity, or a related field, is preferred
  • Must have a minimum of five (5) years of related experience administering server operating systems (Windows Server, Linux), identity and access management (Active Directory, Azure AD/Entra ), Microsoft 365, virtualization, and backup/disaster recovery solutions, as well as Fiber circuits, Ubiquiti, and/or Cisco LAN/WAN products
  • Familiarity with system and network monitoring and management tools, as well as security practices and technologies are required
  • Experience with cloud service providers such as AWS, Azure, or Google Cloud, and understanding of how to administer and integrate cloud services with the existing server, endpoint, network, and VOIP infrastructure to enhance performance, security, and scalability
  • Must have CompTIA Server+ and/or Network+ certifications
  • Must be Microsoft certified in Azure/Microsoft 365 Administrator (or MCSA), CCNA, or have equivalent practical experience
  • Certifications in Microsoft,…
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