Salary : $131,050.26 - $159,289.00 Annually
Location : Santa Rosa, CA
Job Type: Full-Time
Job Number: 26/07-0118-O
Department: Information Systems Department (ISD)
Opening Date: 07/14/2026
Closing Date: 8/3/2026 11:59 PM Pacific
Bargaining Unit: 05

Position Information
Starting salary up to $76.32/hour ($159,289/year) and a competitive total compensation package!*
As the Active Directory and Messaging Administrator in the Information Systems Department (ISD), you will ensure the reliability, security, availability, and performance of the County's Microsoft infrastructure while implementing secure, scalable solutions that support business operations, cybersecurity initiatives, and future growth. Additional responsibilities include:

• Designing and supporting enterprise Microsoft Active Directory, Entra ID, Exchange Online, Exchange Server, and related identity and messaging services
• Developing, testing, documenting, and maintaining backup, recovery, and disaster recovery solutions for Active Directory, Microsoft 365, Exchange, and other enterprise Microsoft platforms
• Planning and implementing system upgrades, migrations, and enhancements to improve performance, scalability, security, and reliability
• Implementing and supporting enterprise identity and authentication solutions, including LDAP, SAML/OIDC single sign-on (SSO), DNS, SMTP, and cloud-based identity services
• Configuring and maintaining Active Directory forests, domains, organizational units (OUs), Group Policy Objects (GPOs), Intune policies, tenant configuration, trusts, and site architecture
• Partnering with Information Security, Governance, Risk, and Compliance teams to strengthen security, mitigate vulnerabilities, and implement enterprise security standards using technologies such as Microsoft Purview, Proofpoint, Valimail, and related security tools
• Automating administration and maintenance tasks through PowerShell and other scripting tools to improve efficiency, consistency, and security
• Administering the enterprise Microsoft 365 messaging and collaboration environment, including Exchange Online, Teams, SharePoint, OneDrive, mailbox management, auditing, compliance, litigation hold, retention policies, and security controls
• Monitoring the health, performance, and security of on-premises and cloud-based Microsoft environments while proactively identifying and resolving issues before they impact users
• Troubleshooting complex enterprise infrastructure issues, documenting system configurations, and providing advanced technical support for Microsoft identity and messaging platforms

The ideal candidate is an experienced Microsoft infrastructure professional with a strong background administering enterprise identity, messaging, and collaboration platforms in a complex enterprise environment. In this role, you will bring your collaborative problem-solving skills and commitment to maintaining secure, reliable, and high-performing systems. You will also possess many of the following:

• Advanced knowledge of Microsoft Active Directory and Entra ID administration and architecture
• Experience administering Microsoft 365 technologies, including Exchange Online, SharePoint, OneDrive, Teams, and Microsoft Purview (Data Loss Prevention, Security Labels, eDiscovery, and compliance features)
• Strong PowerShell scripting and automation experience
• Knowledge of enterprise identity, authentication, and messaging technologies, including LDAP, SAML, OIDC, DNS, SMTP, and email security
• Working knowledge of networking, virtualization, cloud infrastructure, storage, and cybersecurity best practices
• Experience implementing enterprise technology projects and following change management and IT governance practices
• Excellent analytical, troubleshooting, and problem-solving skills
• Strong written and verbal communication skills with the ability to collaborate across technical and business teams

Please note: This position requires being on-call or standby rotation, and may require working occasional evenings or weekends during maintenance windows or critical system events

This position is also required to have access to the Sheriff's Office or Probation Department facilities. This requires a more extensive "Security Clearance" that will be performed after hire. Successful completion of the probationary period may be contingent upon passing the security clearance, which may include completion and review of a Personal History Statement packet, Live Scan fingerprint-based criminal history checks, warrant checks, written reference checks, etc. If you are offered a position that requires a security clearance, the job offer letter will clearly specify this as a condition of the probationary period.
What We Offer

Working at the County of Sonoma offers expansive opportunities for growth and development, the ability to be a part of a challenging and rewarding work environment, and the satisfaction of knowing you're working to better our communities. You can also look forward to flexible work arrangements and excellent benefits* including:

• Hybrid Telework - A schedule that meets the needs of our staff, department operations, and the communities we serve may be available depending on the assignment
• Salary Advancement - A salary increase after 1,040 hours (6 months when working full-time) for good work performance; eligibility for a salary increase for good performance every year thereafter, until reaching the top of the salary range
• Paid Time Off - Competitive vacation and sick leave accruals, 12 paid holidays, and an additional 8 floating holiday hours per year
• County Paid Health Premium Contributions - 100% premium contribution for the majority of employee-only and employee + family health plan options
• Post-Retirement Health Reimbursement Arrangement - County contributions to help fund post-retirement health insurance/benefits
• Retirement - A pension fully integrated with Social Security
• Paid Parental Leave - May be eligible for up to 8 weeks (320 hours) after 12 months of County employment
• Additional Benefits - Excellent dental, vision, disability, life insurance, employee assistance program, professional development, and more
• Student Loan Debt Relief - County employees may be eligible for through the U.S. Department of Education

*Salary is negotiable within the established range. Benefits described herein do not represent a contract and may be changed without notice. Additional information can be found in the and our
This employment list may also be used to fill future full-time, part-time, or extra-help (temporary) positions as they occur during the active status of the list. Qualified County employees who wish to be considered for future positions should consider applying to this recruitment. The Civil Service title of the position is Systems Software Analyst.
Application submissions require the Supplemental Questionnaire to be completed.
Minimum Qualifications

Education: Any combination of education and training which would provide the opportunity to acquire the knowledge and abilities listed. Normally, graduation from a four year college or university with major coursework in computer science, information systems, or a closely related field would provide this opportunity.

Experience: Any combination of training and experience which would provide an opportunity to acquire the knowledge and abilities listed. Normally, three years of technical professional experience involving systems analysis, programming, systems engineering, or similar field in a multi-platform information systems environment including experience installing and maintaining systems software and working with database structures. Additional, highly relevant professional level experience may be substituted for the required education.

License: Possession of a valid driver's license at the appropriate level including special endorsements, as required by the State of California, may be required depending upon assignment to perform the essential job functions of the position.

Knowledge, Skills, and Abilities

Considerable knowledge and understanding of: operating systems and software products; database principles and design; data collection and classification procedures; database and systems problem identification, tracking, resolution, and vendor support; structured coding and analysis; application development products; specific programming techniques and languages; mainframe, mid-size, and client-server network systems capabilities and operations; methods and techniques of troubleshooting hardware, software and inter-connectivity problems; principles of data security; methods and techniques of providing support to staff and end users.

Working knowledge and understanding of: local and wide area network design, management, and operation; the inter-relationship of mainframe, PC, LAN, Network and telecommunications systems including hardware components, software applications, operating systems, and documentation; principles, methods, and techniques of systems analysis.

Ability to: plan, design, upgrade, install, and tune systems software; create systems specifications; provide technical support related to systems software; write and modify instructions, procedures, manuals, documentation; analyze systems problems, develop effective solutions, and prepare cost estimates; work cooperatively and effectively with staff, customers, and vendors; perform a variety of tasks in a consistent and accurate manner; analyze and evaluate information, problems, and situations and develop an effective course of action; prepare clear, concise and accurate oral and written reports.
Selection Procedure & Some Helpful Tips When Applying

• Your application information and your responses to the supplemental questions are evaluated and taken into consideration throughout the entire selection process.
• You should list all employers and positions held within the last ten years in the work history section of your application. Be as thorough as possible when responding to the supplemental questions.
• You may include history beyond ten years if related to the position for which you are applying. If you held multiple positions with one employer, list out each position separately.
• Failure to follow these instructions may impact your competitiveness in this process or may result in disqualification.

Please visit to review more detailed information about the hiring process, including the application process, examination steps, and department selection process.

Application submissions require the Supplemental Questionnaire to be completed.

Responses to supplemental questions will be scored using position-specific criteria. Please provide specific and detailed responses of a reasonable length to allow for a thorough assessment of your qualifications. Responses that state, "See Resume" or "See Application" may be considered insufficient and therefore may not be scored.

The selection procedure will consist of the following examination:

An Application and Supplemental Questionnaire Appraisal Examination (weight 100%) will be conducted to evaluate each applicant's application and supplemental questionnaire for satisfaction of minimum qualifications (pass/not pass); and for educational coursework, training, experience, knowledge, and abilities which relate to this position. Personally identifiable information (PII) is removed from the standard application fields and applicable attachments. This PII blind screening practice redacts a candidate's personal information that could potentially influence or bias the scoring process. Personal information includes the applicant's name, former last name, address, phone number, email, driver's license number, school name, education start and end dates, age, date of birth, gender, and race. This PII blind screening practice helps contribute to a fair and equitable examination process.

Each applicant will be evaluated based on the following criteria:

• Relevance of work history, related experience, and achieved level of education and/or training as described in the application and responses to the supplemental questions.

Candidates demonstrating possession of the minimum qualifications will be placed on an employment list in order of most qualified to least qualified based on the achieved score received in the Application and Supplemental Questionnaire Appraisal Examination which evaluates the education, training, experience, skills, knowledge, abilities, and other qualifications that you demonstrate in your application and/or response to the supplemental questionnaire. Please be aware that resumes and cover letters are not typically evaluated in the Application and Supplemental Questionnaire Appraisal Examination. Scores may be adjusted based on such factors as the number of candidates, anticipated vacancies, past practice, and natural breaks in the scores achieved by this group of candidates.

Additional Information

A background investigation is required prior to employment. Candidates referred to departments for a selection interview are typically required to sign authorization and release forms enabling such an investigation. Failure to sign prescribed forms will result in the candidate not being considered further for that vacancy. Reference information will not be made available to candidates.

For positions that are required to have access to the Sheriff's Office or Probation Department facilities, a more extensive "Security Clearance" will be performed after hire. Successful completion of the probationary period may be contingent upon passing the security clearance, which may include completion and review of a Personal History Statement packet, Live Scan fingerprint-based cri