Senior Systems Administrator-Mercedes-Benz Grapevine

Avondale Dealerships; Grapevine (TX); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Medical insurance

Dental

Vision

Life insurance

401K Retirement Plan

Paid Holidays/Vacation/Paid Time Off

Employee Assistance Program

Job summary

Avondale Dealerships seeks a Senior Systems Administrator to design, implement, and manage dealership IT systems across Windows/Cisco/Webex environments. The role ensures secure, reliable operations with virtualization and cloud support.

The candidate will lead AD/DNS/DHCP, network infrastructure, UC platforms, and disaster recovery, while maintaining security patches and documentation.

Qualifications

• Bachelor’s degree in IT or CS from an accredited institution.
• Minimum five years related IT experience or training.
• Experience designing and administering Windows Server, AD, DNS/DHCP.
• Strong networking with Cisco switches/routers/firewalls.
• Experience with AWS cloud and virtualization technologies.

Responsibilities

• Serves as a senior-level resource for design, implementation, and ongoing administration of IT systems.
• Administers Windows Server environment, AD, DNS/DHCP, file/print, and virtualization.
• Manages Cisco network infrastructure across dealership locations.
• Administers Cisco Webex Calling/Meetings and related UC platforms.
• Plans upgrades, patches, and migrations with minimal business disruption.
• Monitors performance and proactively resolves issues.
• Implements data backup, disaster recovery, and business continuity procedures.
• Maintains security, including firewalls and patching.
• Installs and troubleshoots hardware/software; provides escalated support.
• Sets up new users on phones, voicemail, and business software.
• Maintains AWS cloud resources, provisioning, monitoring, and cost optimization.
• Keeps detailed network diagrams, configurations, licensing, and SOPs.

Skills

Windows Server

Active Directory

Group Policy

DNS/DHCP

Virtualization

Cisco networking

Cisco Webex

Cloud computing

Data backup

Security patches

Education

Bachelor’s degree in Information Technology or Computer Science

Tools

AWS

Cisco devices

Windows Server virtualization

Job description

For over 35 years, Avondale Group has grown to become one of the most respected family-owned automotive groups in the world. We pride ourselves on creating an elevated client experience from purchase, to service, to collision repair, to subscription and beyond. The sincere and endless commitment to our employees drives our success and the inclusive culture makes Avondale Dealerships a truly special place!

We feel honored that we attract, nurture, respect and retain the most talented people in the industry! We do so by providing a world‑class, high-quality work environment where productivity, innovation, and personal and professional growth lead to success and lasting, meaningful relationships. It would be our sincere pleasure to show you this, first‑hand.

EXCELLENT MEDICAL INSURANCE AND LIFE BENEFITS FOR YOU AND YOUR FAMILY!

• Your Choice of Medical Plans (we reduced employee healthcare expense through our self-insured plans for our employees and their families for 2024)
• Dental
• Vision
• FREE Company Paid Life Insurance
• FREE Employee Assistance Program Support for all employees
• 401K Retirement Plan
• Paid Holidays/Vacation/Paid Time Off

Avondale is proud to represent Mercedes-Benz, Sprinter Commercial Vehicles, Porsche, Aston Martin, Bentley, Rolls Royce, McLaren, Maserati and Koenigsegg.

Who is Avondale Group?

A career at Avondale

Our Senior Systems Administrator designs, implement, and administer all dealership computer, network, telephony, and security systems in a Windows / Cisco / Cisco Webex environment, ensuring reliable, secure, and efficient technology operations across the organization.

Responsibilities

• Serves as a senior-level technical resource for the design, implementation, and ongoing administration of all dealership computer, network, telephony, and security systems
• Administers and maintains the Windows Server environment, including Active Directory, Group Policy, DNS/DHCP, file and print services, and virtualization infrastructure
• Designs, configures, and maintains Cisco network infrastructure including switches, routers, firewalls, and wireless access points across all dealership locations
• Administers Cisco Webex Calling, Webex Meetings, and related unified communications platforms, including user provisioning, call routing, and system upgrades
• Plans, tests, and implements upgrades, patches, and migrations to servers, network equipment, and business applications with minimal disruption to operations
• Manages and monitors system, network, and backup performance; proactively identifies and resolves issues before they impact the business
• Develops, implements, and maintains data backup, disaster recovery, and business continuity procedures for all critical systems
• Implements and manages network and system security, including firewalls, endpoint protection, access controls, and security patching
• Installs, configures, and troubleshoots hardware, software, and office equipment; provides escalated (Tier 2/3) technical support
• Sets up and trains new users on phones, voice mail, cellular devices, and business software systems
• Administers and maintains cloud infrastructure and services hosted in Amazon Web Services (AWS), including provisioning, monitoring, and cost optimization of cloud resources
• Maintains accurate documentation of network diagrams, system configurations, licensing, and standard operating procedures

EDUCATION And/or EXPERIENCE

Bachelor’s degree (4-year) from an accredited college or university in Information Technology, Computer Science, or a related field required

Minimum five year related experience and/or training; or equivalent combination of education and experience.

Other Requirements

Operator's Driver’s License (must be insurable)

PHYSICAL DEMANDS

The employee must occasionally lift and/or move up to 50 pounds.