Position: Senior I.T. Systems Administrator Department: Finance FLSA Status: Non-Exempt Division: Information Technology Pay Grade: 32 Reports To: I.T. Manager

BASIC FUNCTION

Performs a variety of complex duties associated with maintaining the citys information technology resources under the supervision and review of the IT Manager. Anemployee in this classification installs, supports, maintains, and troubleshoots computer software, hardware, and network systems. The employee is responsible for WAN/LANadministration, including designing and managing network services, Internet connectivity, Active Directory, virtualization, email systems, firewall standards, securityprotocols, and AV/EDR enterprise solutions. The employee also supports various departmental software applications. Work is performed with considerable independenceand requires considerable initiative and judgment. The employee is expected to adhere to regulations involving policy, standards and procedures, and confidentiality asdetermined by departmental regulations and local, state, and federal legal requirements. A thorough criminal history and background check is mandatory and the successfulapplicant must be approved by TLETS (Texas Law Enforcement Telecommunication Systems).

ESSENTIAL DUTIES AND RESPONSIBILITIES

Install, configure, and maintain Windows Server operating systems (both onpremises and in cloud environments). Install, configure, and manage VMware vSphere environments, including vCenter and ESXi hosts. Manage Active Directory (AD), Group Policy, DNS and DHCP. Monitor and optimize server performance, including regular updates, patches, and backups. Perform VM backups, snapshots, and restores using VMware tools and integrated third-party solutions. Implement and manage hybrid identity solutions, hybrid backup and disaster recovery strategies, including Azure Active Directory and Entra Connect. Implement security measures and harden systems to protect against threats across both Windows and VMware platforms. Deploy, configure, and manage virtual machines (VMs), ensuring resource allocation, performance optimization, and high availability. Monitor and maintain VMware clusters, ensuring proper load balancing, failover, and resource management through vSphere HA and DRS, firewalls, antivirus solutions, and security tools across the infrastructure. Regularly apply updates, patches, and upgrades to VMware and ESXi environments to ensure security and stability. Conduct regular vulnerability assessments and apply patches to ensure system compliance with security policies. Maintains inventories and product documentation. Assists the department with research, development, and implementation of new technologies. Serves in a support capacity during emergency and disaster operations as needed. Occasional extended hours and after hour call-out required. All other duties as assigned.

SUPERVISORY RESPONSIBILITIES

This position does not require supervisor responsibilities.

REQUIRED KNOWLEDGE/SKILLS

Information technologies, including but not limited to: Windows Server, Active Directory, Group Policy, VMware, Backup Strategies, TCP/IP, Microsoft Visio, Microsoft Office, PChardware/software and peripherals.

Must be able to @type work independently and perform tasks under pressure with short deadlines; develop and maintain relationships with peers across departments and consultants; multi-task, organize and prioritize a changing work schedule to meet needs of department; follow oral and written instructions; effectively communicate both orally and in written form, technical information to non-technical users; obtain sufficient and essential information; attend training classes, seminars, meetings, etc both locally and/or out of town as needed.

EDUCATION and/or EXPERIENCE

Degree from an accredited secondary learning institution with major coursework in Computer Science/IT and two or more years of experience; OR an equivalentcombination of education and/or experience. Relative technical certifications may be considered for substitution. Cisco, Microsoft or equivalent certifications are desirable. Must be approved by TLETS (Texas Law Enforcement Telecommunications Systems). Must possess a valid driver license.

PHYSICAL AND ENVIRONMENTAL CONDITIONS

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

While performing the duties of this job, the employee is regularly required to talk and hear. The employee is required to stand or sit for extended periods of time. The employee is occasionally required to use hands to finger, handle, or feel; reach with hands and arms; push, pull, and grasp; and perform repetitive motions. Must possess the visual acuity to perform computer related tasks. Must be able to lift, push, drag, pull and/or carry up to 20 pounds of computer equipment and/or related supplies. While performing the duties of this job, the employee regularly works in a standard office environment with cooler than normal temperatures. The noise level in the work environment is usually moderate to loud with constant noise for extended periods of time. The employee is occasionally subjected to outside environments. The employee will have some exposure to electrical and mechanical hazards and dusts.

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