Administrative Assistant I​/II

This posting will close on November 17, 2026 at 11:59 p.m. or when applicant count reaches 125.

The City of Lathrop is seeking an Administrative Assistant I or II to support the Public Works Department. This role provides essential administrative support to the Utilities, Streets, Parks, and Facilities divisions by coordinating workflow, maintaining records, and assisting with daily operational processes. Candidates should be organized, detail-oriented, and effective communicators in a fast-paced environment.

Key duties include processing invoices and payments, coordinating supply and equipment orders, preparing and tracking vendor contracts, and assisting with budget documentation. The position also responds to inquiries from residents, vendors, and staff, drafts correspondence, compiles report information, and enters data into department systems. The ideal candidate is dependable, customer-service focused, and able to manage multiple priorities efficiently.

Incorporated in 1989, the City of Lathrop is located in the Northern San Joaquin Valley and sits east and west of the San Joaquin River. Interstate 5, Interstate 205, and State Route 120 intersect within the city. We are located approximately 70 miles east of San Francisco and 70 miles south of Sacramento. Monterey, Santa Cruz, Napa Valley, and the Sierra Nevada Mountains are all located within 2 hours of Lathrop.

Lathrop is centrally located within a 30-minute commute of Tracy, Manteca, Stockton, Ripon, Lodi, Modesto, and Livermore.

The Department’s January 1, 2026, population estimates show Lathrop grew from 38,791 residents in 2025 to 40,942 residents in 2026, an increase of 2,151 people, or 5.5%. The report ranks Lathrop as the second fastest-growing city in California with a population over 30,000, behind only Mountain House. Lathrop also ranked fifth among California cities under 300,000 residents for the largest numeric population increase.

With the continued growth in the residential communities, our population is anticipated to reach approximately 70,000.

The Administrative Assistant I is the entry level class in the Administrative Assistant series that allows the incumbent to develop journey level knowledge and abilities. Initially, under immediate supervision, incumbents perform the more routine clerical support and customer service duties while learning City policies and procedures. As experience is gained, there is greater independence of action within established guidelines and incumbents are assigned the more complex tasks.

This classification is alternatively staffed with Administrative Assistant II and incumbents may advance to the higher level after gaining experience and demonstrating a level of proficiency that meets the qualifications of the higher level class.

The Administrative Assistant II is the full working level class in the Administrative Assistant series in which incumbents are expected to independently perform the full scope of assigned duties. Incumbents perform a full range of office and administrative support duties, including maintenance of a calendar and scheduling appointments, preparation of reports, and assisting in the issuance and collection of permits and fees.

This classification is distinguished from the next higher classification of Legal Assistant in that the latter performs a variety of clerical and office support duties involving sensitive legal and confidential documents and reports.

Receives immediate supervision from a department head and/or management staff. May provide technical and functional supervision to seasonal and temporary employees.

• Learns to perform and performs routine and complex tasks and duties assigned to classes within the Administrative Assistant series by providing office, clerical and administrative support to management staff and other staff in one or more departments as needed.
• Plans, organizes and carries out administrative assignments; researches, compiles and organizes a variety of information from various sources on specialized topics related to programs in assigned areas; assists in a variety of department operations; applies special knowledge in reviewing and determining completeness of applications, permits, records and files.
• Types drafts and a wide variety of finished documents from verbal and brief written instructions, and transcribing machine…