Senior Office Assistant

Salary : $60,443.00 - $73,487.50 Annually
Location : Santa Rosa, CA
Job Type: Full-Time
Job Number: -DP
Department: Sonoma County Public Infrastructure (SPI)
Opening Date: 05/15/2025
Closing Date: 5/22/:59 PM Pacific
Bargaining Unit: 01

Position Information

This recruitment is promotional only. You must presently be a full or part-time regular or probationary County of Sonoma, Community Development Commission, Sonoma County Fairgrounds, or Sonoma County Water Agency employee in order to apply for this position. Sonoma Public Infrastructure (SPI) has requested a department promotional certification to fill a Senior Office Assistant position. Only qualified permanent and/or probationary SPI department employees on the eligible list may be eligible for referral to the department for the advertised position. This employment list may also be used to fill future full-time or part-time positions as they occur during the active status of the list.

As a Senior Office Assistant with Sonoma Public Infrastructure's Transit Division, you will be assigned a variety of administrative support duties that are complex in nature or have a high consequence of error. When accepting, filing, and maintaining records and documents, you will work to ensure they are processed on time and within State and Federal regulations and department guidelines. Additionally, you will provide exceptional customer service support and:

• Be the first point of contact for the public and other agencies
• Create invoices and receipts
• Organize and maintain office supplies
• Route incoming and outgoing mail
• Respond to inquiries by phone, in person, and through written electronic communication
• Process event reservation requests
• Scan and file contracts and grant agreements
• Assist with organizing electronic file systems
• Issue proximity cards for County employees
• Provide clerical support for all SPI divisions

The ideal candidate for this position will possess many of the following:

• The drive to provide exemplary customer service support
• Experience working with the public in an office environment
• A collaborative mindset, willing to work with and establish relationships with others
• Excellent interpersonal skills and the ability to communicate effectively both orally and in writing
• A talent for working well under pressure and meeting deadlines
• The capacity to work independently and exercise sound judgment
• Superb attention to detail, with an aptitude for focusing on complex projects while working in a frequently interrupted environment
• Experience operating multi-line phone systems
• Advanced Microsoft Suite skills (the ability to edit and remediate documents in Adobe Acrobat or learn those skills is a plus.)

This recruitment is being conducted to fill one Senior Office Assistant position in Sonoma Public Infrastructure. The Civil Service title for this classification is Senior Office Assistant.Application submissions require the Supplemental Questionnaire to be completed.
Minimum Qualifications

Education & Experience: Any combination of training and experience which would likely provide the required knowledge and abilities. Normally, two years as an Office Assistant II with the County or two years of comparable work experience in an office environment will provide this opportunity.

Special Skill Assignment: Some positions may require the ability to type at a corrected speed of 45 words per minute. All positions require considerable ability to operate a personal computer and multiple software. Some positions may require the ability to communicate in a language other than English.

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 of: clerical and department practices, procedures, programs, services, policies, and regulations; the purpose and processing of a diversity of forms and documents; English grammar, vocabulary, spelling, punctuation and composition.

Working knowledge of: methods and techniques used in researching, proofing, evaluation, gathering, organizing and arranging data; techniques and practices for leading workers; basic mathematics; business letter writing; the use of electronic information equipment and specific systems as used within the department.

Ability to: read English at a level necessary to understand procedures, manuals, policies and guidelines; write English at a level necessary to prepare correspondence and record incoming information; speak English at a level necessary to communicate information clearly; answer a variety of questions related to department programs, services and operations; exercise sound judgement when initiating processes, actions, and alternatives within established procedures and regulations; understand and carry out written and oral instructions; prepare and maintain accurate reports and records; establish and maintain harmonious work relationships with employees and the public; communicate effectively verbally and in writing with individuals from diverse socio-economic and cultural backgrounds; enter data accurately into automated systems; maintain confidentiality of restricted information; use discretion in organizing work and carrying out assignments with minimum supervision; use electronic information equipment and specific systems as used within the department; understand and apply specific rules, codes, regulations, procedures, policies, and precedents; select, interpret and explain regulations and procedures to others; locate, identify, and correct technical inaccuracies; provide direction to others; work independently in performing assignments and in resolving problems and deviations; establish, organize and arrange and revise the maintenance of department files; research, proof, evaluate, gather, organize and arrange a diversity of information; produce on a computer keyboard or a typewriter a variety of material to include graphs, charts, statistical statements, specifications, purchase orders, reports and standardized forms; independently research and prepare correspondence in answer to inquiries about department records, programs, services and regulations; maintain and process a variety of records and transactions; make accurate and rapid mathematical calculations; operate office equipment to include personal computers, alpha readers, typewriters, calculators, printers, copiers, adding machines, microfilm equipment, and data processing terminals.
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 BE COMPLETED.

Responses to supplemental questions may 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 & 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. 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 & 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 & 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.
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