Office Assistant III (Front Desk)

Job Description:

Office Assistant III (Front Desk)

Description

ABOUT US

At the County of Marin, our employees overwhelmingly report feeling their work is meaningful, they like the work they do, and they are proud to tell people “I work for the County of Marin.” Discover more about us, our values and our organizational culture here . Read on to find out more about this opportunity.

DEPARTMENT OF PUBLIC WORKS MISSION STATEMENT: Provide the community with quality services, maintain and improve our public infrastructures and facilities, and support the preservation of Marin’s unsurpassed beauty.

ABOUT THE POSITION

The Department of Public Works is seeking a dependable and service-oriented Office Assistant III to join the Administrative Services Team within the Business Services Branch. Public Works provides essential services that support Marin County’s infrastructure, including facilities, roads, engineering, environmental programs, and other community-serving services. This position supports that work by serving as the primary front desk and reception contact for Public Works at the historic Marin County Civic Center.

This position plays an important role in welcoming members of the public, County staff, vendors, and partner agencies; answering and routing phone calls; responding to general inquiries; and helping connect people with the appropriate division, program, or staff member. The Office Assistant III will also provide general clerical and administrative support as assigned, including assistance with daily office operations.

ABOUT YOU

Our ideal candidate is professional, reliable, organized, and values the importance of serving as the first point of contact for a public-facing department. They will create a positive first impression for visitors and callers by maintaining a welcoming and professional reception area, providing accurate information, and representing the department in a calm, courteous, respectful, and responsive manner.

They will have strong interpersonal skills, communicate clearly and professionally, and be able to assist a wide range of stakeholders, including members of the public, County staff, vendors, and partner agencies. They will demonstrate sound judgment, discretion, and the ability to follow established procedures and policies while routing inquiries appropriately.

This role requires a service-oriented approach, patience, dependability, attention to detail, and professionalism. The ideal candidate will also be flexible and willing to support assigned clerical and administrative tasks that help the Administrative Services Team operate smoothly.
KNOWLEDGE OF

• Standard office practices and procedures including filing and retrieval systems, correspondence formats and the operation of standard office equipment.
• Standard office applications including word processing, spreadsheet and database systems.
• Correct English usage including grammar, spelling and punctuation.
• Business arithmetic.

ABILITY TO
Office Assistant I

• Learn general office practices and procedures.
• Perform routine clerical work.
• Learn policies and procedures related to the department to which assigned.
• Understand and follow written and oral instructions.
• Perform simple mathematic calculations.
• Communicate effectively both verbally and in written form sufficient to convey information and instructions to the public and other employees in situations requiring tact, courtesy and poise.
• Establish and maintain effective working relationships with those contacted in the course of the work.
• Type at an acceptable rate of speed based on the requirements of the position.

Office Assistant II (in addition to above):

• Perform general clerical and technical work quickly and accurately.
• Use database, spreadsheet, word processing, publishing and/or internet applications depending on assignment.
• Read, interpret and apply rules, policies and procedures in specific situations.
• Prepare and maintain accurate and concise records and reports.
• Read and comprehend manuals and instructions related to assignment such as: maps; drawings; policies and procedures; training materials; code books; instructions for equipment; and safety rules and procedures.
• Perform basic mathematic calculations.

Office Assistant III (in addition to above):

• Perform difficult and/or complex clerical duties including document processing and auditing.
• Use independent judgment and prioritize multiple tasks.
• Learn complex enterprise resource planning software and/or assignment-specific database systems.
• Some assignments may require ability to perform more advanced mathematical calculations such as computing percentages and calculating simple measurements.
• Provide lead direction and training to staff depending on assignment.

PLEASE NOTE: The benefits described herein do not apply to temporary (contingent) or to part-time employees that work less than 50%.

COUNTY OF MARIN BENEFITS: GENERAL
Below are some of the excellent benefits the County offers. More information about our benefits can be found on the Marin County's Benefits Homepage .

Paid Time Off : Competitive vacation accrual; 12 holidays per year; and generous sick leave accruals. Additional types of paid leaves are available for some bargaining units.

Health Plan : Choice of four health plans (two Kaiser HMOs, Western Health Advantage HMO, and an Anthem Blue Cross PPO) along with dental through Delta Dental PPO, and vision through Vision Service Plan (VSP). There is a County contribution toward the premiums (the contribution amount varies depending on coverage tier elected such as employee only, employee + 1, employee + family). Plus, the County offers excellent Life Insurance, Disability, Flexible Spending Plans, a Dependent Care Assistance Program, professional development and more.

Retirement : Defined benefit plan under the County Employees Retirement Act of 1937. More information can be found online at www.mcera.org.

IRS 457 Plan : Choice of pre-tax or post-tax (Roth) employee contribution up to the IRS annual maximum.

Retiree Medical : The County provides access to group health plan coverage to eligible retirees.

For specific questions regarding the employment process, please contact Human Resources at (415) 473-6104. For additional details about the benefits or retirement, please contact the Benefits Division at (415) 473-2197.

*IMPORTANT NOTE: Benefits described herein do not represent a contract and may be changed without notice.

Closing Date/Time: 8/9/2026 11:59 PM Pacific

Salary:

$63,024.00 - $74,587.50 Annually