IT Systems Administrator III - District Attorney
Listed on 2026-05-21
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IT/Tech
Systems Administrator, IT Support, Cybersecurity, Network Administrator
Overview
The County of Riverside's Office of The District Attorney has an opportunity for an IT Systems Administrator III position located in Riverside. This role will involve strategic planning, architectural design, security, cost optimization, and ensuring that cloud infrastructure meets both current and future business needs. The selected candidate will engage in work related to infrastructure, Microsoft 365 administration, and assisting with the ongoing operational aspects of the Exchange Online mail environment.
The incumbent will also act as a lead over important and ongoing technical projects and will administer Windows servers and storage systems, monitor and troubleshoot system performance, and provide solutions and recommendations to improve performance.
The IT Systems Administrator III is the lead level classification in the IT Systems Administrator series and reports to a supervisory or manager level position. Incumbents in this class exercise a high degree of independent judgement, provide project oversight to subordinate staff, and perform the most complex assignments that require extensive knowledge and proficiency.
Preferred Knowledge, Skills, and Abilities- Hands-on experience with Windows AD directory, Group Policies, Power Shell, Windows Server environments, and Hyper-V.
- Hands-on experience with Entra/Azure administration (Exchange Online and OnPrem, Defender XDR Suite, Compliance, Endpoint Manager/Intune, One Drive, etc.).
- Demonstrated experience running System Center products.
- Demonstrated experience administering Windows servers as well as hands-on experience with storage systems.
- Experience managing complex patching deployments of various systems.
- Understanding of system performance monitoring and actions that can be taken to improve or correct performance.
A successful security clearance is mandatory for positions within the Riverside County Office of the District Attorney.
May include the following responsibilities- Plan and implement hardware installation and upgrades; maintain physical technical infrastructure, directories, and system documentation; plan and implement operating system and application upgrades.
- Monitor resource use, and tailor and tune to ensure optimal performance and reliability.
- Conduct analysis of network and system management, capacity planning, fault tolerance, and disaster recovery.
- Develop utility programs and shell scripts (e.g., backup, security); evaluate software; assist with application testing.
- Develop system security and firewall requirements based on industry standards and management preferences; plan and implement systems backups, coordinating recoveries, including offsite disaster recovery.
- Research, evaluate, and test proposed products, product versions, and systems solutions; coordinate design, installation, and support activities with application vendors.
- Evaluate conformance of system security and database integration requirements with County standards.
Education: Completion of 30 semester or 45 quarter units from an accredited college or university, preferably with coursework in computer science, computer information systems, data processing, information management, or a related field to the assignment. (Additional IT job-related experience may substitute for the required education on the basis of 30 semester or 45 quarter units equaling one year of full-time experience.)
Experience: Four years of successful journey level experience with system administration for Windows AD directory, Group Policies, Power Shell, Windows Server environments, and Hyper-V or with Entra/Azure administration (Exchange Online and OnPrem, Defender XDR Suite, Compliance, Endpoint Manager/Intune, One Drive, etc.), one year of which included either lead level duties or technically advanced IT job-related work. One year as an IT Systems Administrator II will satisfy the one year of lead or technically advanced experience requirement.
Knowledge of: The principles, methods, and techniques used in the course of work for the IT Systems Administrator series; principles and techniques applied to IT devices, applications, and systems; principles of organization and…
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