20 Results for Office Assistant Jobs in Manteca, CA

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Office Manager

San Jose, CA
onsite
Temporary to Hire
26.125 - 30.25 USD / Hourly
We are looking for an organized Office Manager to support daily administrative operations in California. This contract opportunity is ideal for someone who enjoys creating an efficient workplace, coordinating front-office activities, and keeping essential office functions running smoothly. The person in this role will help maintain a well-organized environment while supporting supply management, vendor coordination, and routine financial administration. Responsibilities: • Oversee day-to-day office operations to ensure the workplace remains organized, efficient, and fully supported. • Manage purchasing for office materials and track inventory levels so teams have the supplies they need. • Coordinate with vendors and service providers to maintain smooth administrative and facility-related support. • Handle reception responsibilities by welcoming visitors, answering incoming communications, and directing inquiries appropriately. • Support accounts payable activities, including reviewing invoices and assisting with timely processing of payments. • Maintain administrative records, organize office documentation, and help streamline routine support tasks. • Assist with scheduling, internal coordination, and general office logistics to keep daily operations on track.
2026-11-10T00:00:00Z

Administrative Assistant

Lathrop, CA
onsite
Temporary / Contract
20.9 - 24.2 USD / Hourly
We are looking for an organized Administrative Assistant to support daily office operations for a non-profit organization in Lathrop, California. This Long-term Contract opportunity is ideal for someone who can manage administrative workflows, maintain accurate records, and provide detail-oriented front-desk support. The role requires strong attention to detail, clear communication, and the ability to handle multiple tasks in a busy office environment. Schedule: Monday–Friday, 8 AM–5 PM Assignment: permanent Contract, 3–6 Months Seeking an organized and dependable Administrative Assistant to support a busy Public Works Department. Responsibilities: Process purchase orders and invoices Order supplies and maintain office inventory Answer and route incoming calls Assist customers and respond to vendor inquiries Provide general administrative and clerical support
2026-11-10T00:00:00Z

Executive Assistant

Sacramento, CA
onsite
Temporary / Contract
30 - 35 USD / Hourly
We are looking for an Executive Assistant to provide high-level administrative support for leadership in Sacramento, California. This Long-term Contract position is ideal for someone who excels at organizing complex schedules, coordinating logistics, and keeping executive priorities moving efficiently. The role requires strong judgment, attention to detail, and the ability to manage meeting and travel needs in a fast-paced environment. Responsibilities: • Manage executive calendars by organizing appointments, resolving scheduling conflicts, and ensuring leaders are prepared for daily commitments • Arrange domestic and potentially complex travel plans, including transportation, lodging, and itinerary coordination based on business needs • Support meeting planning by scheduling executive sessions, confirming attendee availability, and coordinating logistics in advance • Prepare and maintain detailed travel schedules and related materials so executives have clear, accurate trip information • Serve as a central point of coordination for administrative activities, helping leadership stay organized and informed • Monitor shifting priorities and adjust calendars or travel arrangements quickly to accommodate business demands
2026-11-10T00:00:00Z

Executive Assistant

Fremont, CA
onsite
Temporary / Contract
31.6635 - 36.663 USD / Hourly
We are looking for an organized and proactive Executive Assistant to support leadership in Fremont, California. This is a Contract position suited for someone who is detail oriented and can manage complex schedules, coordinate meetings, and handle travel logistics with accuracy and discretion. The ideal candidate brings strong administrative judgment, anticipates needs, and keeps daily operations running smoothly in a fast-paced environment. Responsibilities: • Manage executive calendars by prioritizing appointments, resolving scheduling conflicts, and ensuring leaders are prepared for daily commitments. • Arrange domestic and international travel, including flights, lodging, ground transportation, and itinerary planning. • Coordinate meeting logistics for executive sessions, including scheduling, room reservations, agenda support, and follow-up on action items. • Communicate with internal teams and external contacts to confirm appointments, travel details, and schedule updates. • Prepare and maintain organized records related to travel plans, meeting schedules, and executive activities. • Monitor changes to calendars and travel plans, responding quickly to updates while minimizing disruption to executive priorities.
2026-11-11T00:00:00Z

Executive Assistant

Hayward, CA
onsite
Temporary / Contract
28.5 - 33 USD / Hourly
We are looking for an experienced Executive Assistant to provide high-level support to senior leadership within a healthcare organization in Hayward, California. This Long-term Contract position calls for a highly experienced, detail-oriented individual who can manage complex scheduling, executive communications, meeting coordination, and board-related activities with discretion and accuracy. The ideal candidate will help keep leadership operations organized, support strategic initiatives, and ensure important priorities move forward efficiently. Responsibilities: • Provide dedicated administrative support to executive leadership, managing daily priorities and ensuring smooth coordination of leadership activities. • Oversee complex calendars, arrange travel, process expense documentation, and handle executive correspondence with care and attention to detail. • Prepare meeting agendas, presentation materials, reports, and follow-up notes to support informed decision-making and effective leadership communication. • Coordinate internal meetings, external engagements, retreats, and leadership events while managing logistics and schedule changes efficiently. • Maintain organized executive records, contracts, governance files, and key organizational documents in accordance with internal standards. • Track action items, deadlines, project milestones, and leadership commitments, escalating concerns when timelines or deliverables are at risk. • Support cross-functional initiatives by coordinating meetings, gathering information, and assisting with reports and materials tied to strategic priorities. • Serve as a key point of contact for board-related administration, including scheduling meetings, preparing board packets, recording minutes, and maintaining governance documentation. • Facilitate communication with board members, executives, community partners, and external stakeholders while upholding a high degree of confidentiality. • Contribute to board onboarding, annual governance processes, committee administration, and special planning sessions as needed.
2026-11-06T00:00:00Z

Legal Assistant

Walnut Creek, CA
onsite
Temporary to Hire
25 - 35 USD / Hourly
Legal SecretaryWe are seeking a Legal Secretary to support attorneys with a variety of administrative and legal support duties. The ideal candidate will be organized, detail-oriented, and comfortable managing multiple priorities in a fast-paced legal environment.Responsibilities:<ul><li>Provide administrative support to attorneys</li><li>Manage calendars, schedule meetings, and track deadlines</li><li>Prepare, format, revise, and proofread legal documents</li><li>Communicate with clients, courts, and outside parties</li><li>Maintain electronic and physical client files</li><li>Assist with document management and filing</li><li>Support general office and legal administrative functions</li></ul>Qualifications:<ul><li>2+ years of legal secretary, legal assistant, or related legal support experience</li><li>Strong Microsoft Word and document formatting skills</li><li>Experience with calendaring and deadline management</li><li>Professional written and verbal communication skills</li><li>Highly organized with strong attention to detail</li><li>Experience in Trusts & Estates (T&E), estate planning, or probate is a plus</li></ul>This role is ideal for someone who enjoys supporting attorneys, handling client interactions, and keeping legal matters organized and moving forward.
2026-11-05T00:00:00Z

Legal Assistant

San Jose, CA
onsite
Temporary / Contract
25 - 25 USD / Hourly
National immigration law firm has an immediate opening for an entry level Legal Assistant! This Legal Assistant will perform challenging, substantive legal work with a focus on preparing immigration applications. The firm provides comprehensive training and support to ensure your success, including ongoing workshops, legal practice meetings, and a client service team structure that facilitates mentoring from senior professionals. This is a great opportunity for individuals looking to build a rewarding career in immigration law and the legal field. This Legal Assistant must be able to work on-site full-time in San Jose, CA. The ideal candidate will be a recent college graduate or have 1-2+ years of experience working in the legal field. Responsibilities: <ul><li>Organize and maintain legal documents detailing eligibility for visa classification.</li><li>Handle clerical tasks such as copying, printing, and scanning documents.</li><li>Create electronic and physical client files for efficient case management.</li><li>Track and monitor the status of immigration cases, ensuring timely updates.</li><li>Circulate incoming mail according to specified procedures.</li><li>Learn to analyze case documents and prepare immigration applications for filing.</li><li>Draft specialized support letters detailing eligibility for visa classification and other immigration benefits.</li><li>Interface with corporate representatives and foreign nationals.</li><li>Participate in legal practice meetings and alerts for updates on current events, advanced topics, and client relationship building skills.</li><li>Projects as assigned.</li></ul>
2026-11-10T00:00:00Z

General Office Clerk

Hayward, CA
onsite
Temporary / Contract
24 - 25 USD / Hourly
We are seeking a part-time temporary Office Clerk to support daily office operations and provide exceptional service to members and visitors in Hayward, California. This role is responsible for front desk reception, processing payments, assisting members with paperwork, maintaining records, and providing bilingual support in both English and Spanish. Office Clerk Key Responsibilities:Greet and assist members and visitors at the front desk and service windowAnswer and direct a high volume of incoming callsAssist members daily in person with questions, forms, and enrollment paperworkProcess payments received in person and over the phoneMaintain and reconcile daily payment receipts and recordsScan, file, and upload member documents into the company databaseExplain membership enrollment and sign-up processes to new membersProvide support to union members as neededPerform general clerical duties, including data entry, filing, document management, and administrative support Software & Technical Skills:Microsoft Excel (basic data entry and record keeping)Microsoft WordDocument scanning and electronic file management Qualifications:Previous front desk, office clerk, receptionist, or customer service experienceBilingual English/Spanish requiredStrong communication and customer service skillsAbility to handle multiple tasks in a fast-paced environmentStrong attention to detail and organizational skills If you are interested in this part-time Office Clerk role, please apply today!
2026-11-07T00:00:00Z

Accounting Assistant

Modesto, CA
onsite
Temporary to Hire
24 - 27 USD / Hourly
We are looking for an Accounting Assistant to join a team in Modesto, California and contribute to both accounting support and day-to-day office coordination. This contract opportunity with potential for a permanent role is well suited for someone who is organized, adaptable, and comfortable handling a mix of financial and administrative responsibilities in a fast-paced setting. The ideal candidate brings a strong grasp of core accounting tasks, enjoys keeping records accurate, and can step in across functions as priorities shift. Responsibilities:• Manage incoming payments and support accounts receivable activities by maintaining accurate documentation and updating financial records.• Prepare check deposits, record transactions in the appropriate systems, and help ensure timely processing of daily cash activity.• Complete routine account reconciliations to verify accuracy, resolve discrepancies, and maintain dependable financial data.• Assist with payroll-related activities, including gathering information, reviewing entries, and supporting processing as needed.• Maintain orderly accounting files and administrative records to support compliance, reporting, and efficient office operations.• Use Microsoft Excel to track financial information, build supporting spreadsheets, and assist with reporting and data review.• Provide general office support, including organizing materials, assisting with operational cleanup efforts, and helping improve day-to-day workflow. For immediate consideration contact Robert half at 209-232-1991.
2026-11-06T00:00:00Z

Bookkeeper / Office Manager

Concord, CA
onsite
Temporary / Contract
34 - 40 USD / Hourly
About the RoleRobert Half is seeking a versatile Bookkeeper / Office Manager to oversee both financial and administrative operations for a respected organization in the construction industry. The ideal candidate will manage bookkeeping functions and ensure seamless office operations. This is a great opportunity for an organized, detail-oriented professional who thrives in collaborative, multi-faceted environments. Key Responsibilities<ul><li>Manage all bookkeeping duties, including general ledger entries, account reconciliations, and preparation of financial statements.</li><li>Oversee accounts receivable (AR), accounts payable (AP), and payroll processes.</li><li>Handle expense reports, budget tracking, and assist with financial forecasting.</li><li>Organize vendor invoices, purchase orders, and client billing.</li><li>Maintain electronic and paper-based records for accessibility and reporting.</li><li>Coordinate office operations, supplies, and vendor relationships.</li><li>Support employee onboarding and ensure accurate HR documentation.</li><li>Serve as a liaison between leadership and staff to facilitate communication and operational efficiency.</li><li>Provide administrative support as needed, including calendar management, facilities coordination, and event planning.</li></ul>
2026-10-30T00:00:00Z

Project Assistant

Modesto, CA
onsite
Temporary / Contract
20 - 22 USD / Hourly
Client in Central Valley is looking for an Administrative Assistant for a busy and growing construction office. Previous construction industry experience is a must. This requires experience working with RFI and submittals you will assist with construction projects correspondence, document handling, phones, filing, ordering office supplies, processing mail, data entry, processing contracts to subcontractors and purchase orders, change orders to subs and other clerical duties as needed.A background in accounts payable is desired. Office uses SAGE 300. Autodesk. Schedule will be Monday through Friday 8 to 5 - office closes from 12 to 1 for lunch.
2026-11-06T00:00:00Z

Accounting Clerk

Union City, CA
onsite
Temporary / Contract
20 - 22 USD / Hourly
We are looking for an Accounting Clerk to support day-to-day financial and administrative operations for a Contract position based in Union City, California. This role is ideal for someone who is organized, detail-oriented, and comfortable handling a mix of accounting support, document processing, and front-office coordination. The successful candidate will contribute to accurate recordkeeping, timely invoice handling, and responsive internal and external communication in an onsite work environment. Responsibilities: • Process customer and vendor invoices accurately, ensuring records are entered and coded correctly within the appropriate systems. • Maintain accounts receivable documentation, update payment information, and assist with tracking outstanding balances. • Perform high-volume data entry with strong attention to detail using tools such as Microsoft Excel, Microsoft Word, and SAP R/3. • Scan, file, and organize financial and clerical documents so records remain complete, accessible, and audit-ready. • Provide receptionist and general administrative support, including handling paperwork, routing communications, and assisting visitors or callers professionally. • Support day-to-day office operations by preparing templates, managing routine clerical tasks, and helping maintain organized workflows. • Assist with training or guidance for administrative processes when needed, helping team members follow established procedures. • Communicate with customers and internal teams to resolve invoice questions, confirm documentation, and support timely processing.
2026-11-03T00:00:00Z

Accounting Clerk

San Ramon, CA
onsite
Temporary / Contract
24 - 28 USD / Hourly
Accounting ClerkEmployment Type: ContractPay Rate: $20 - $28 hourly About the Role:Are you an organized, detail-oriented individual looking to build a rewarding career in accounting? Join Robert Half as an Accounting Clerk where you will play a pivotal role in maintaining accurate financial records and supporting the daily operations of the accounting department. This is an excellent opportunity for someone passionate about numbers and efficiency to grow within a collaborative and supportive environment. Key Responsibilities:<ul><li>Perform data entry and maintain accurate and up-to-date financial records.</li><li>Process accounts payable and accounts receivable transactions.</li><li>Assist with bank reconciliations and general ledger entries.</li><li>Prepare, track, and ensure the timely processing of invoices and payments.</li><li>Support in the preparation of financial statements and reports as needed.</li><li>Assist with month-end and year-end closing activities.</li><li>Respond to inquiries regarding financial transactions and records.</li><li>Collaborate with team members to streamline accounting processes and increase efficiency.</li><li>Provide administrative support to the accounting team and other duties as required.</li></ul>
2026-10-26T00:00:00Z

Accounting Clerk

Pleasanton, CA
onsite
Permanent / Full Time
25.5 - 30.5 USD / Hourly
Launch your accounting career with Robert Half’s Full-Time Engagement Professionals (FTEP) program as an Accounting Clerk! Gain hands-on experience across AP/AR, billing, collections, and general accounting while supporting diverse client projects. Ideal candidates have intermediate Excel skills, strong attention to detail, and a degree in accounting, finance, or a related field. For more information, please contact Tawnia Kirshen via LinkedIn and send your resume to my email found there. Key Responsibilities<ul><li>Support AP, AR, billing, collections, and daily accounting operations.</li><li>Process invoices, post payments, and maintain vendor and customer accounts.</li><li>Generate invoices, review aging reports, and follow up on past-due balances.</li><li>Reconcile accounts, research discrepancies, and maintain accurate records.</li><li>Perform high-volume data entry with accuracy and efficiency.</li><li>Assist with cash application, payment tracking, and account updates.</li><li>Respond to vendor, customer, and internal inquiries professionally.</li><li>Maintain documentation, support month-end close, and use Excel for reporting and analysis.</li><li>Adapt quickly to new client systems and processes while providing quality support.</li></ul>
2026-11-02T00:00:00Z

Accounting Clerk

Martinez, CA
onsite
Temporary / Contract
24 - 28 USD / Hourly
About the Role:Are you someone who enjoys working with numbers, staying organized, and ensuring accuracy in financial records? Robert Half is seeking a dependable and detail-focused Accounting Clerk to support the day-to-day functions of an accounting department. In this role, you'll contribute to essential financial processes, help maintain accurate records, and work alongside a team dedicated to keeping operations running smoothly. This is a great opportunity to expand your accounting experience and develop your skills in a professional, team-oriented environment. Key Responsibilities:<ul><li>Enter, review, and update financial information while ensuring records remain accurate and organized.</li><li>Handle daily accounts payable and accounts receivable activities.</li><li>Assist with bank reconciliations and general ledger maintenance.</li><li>Review, organize, and process invoices, payments, and related documentation.</li><li>Help compile financial data and prepare reports as requested.</li><li>Provide support during monthly and annual accounting close processes.</li><li>Research and respond to questions related to invoices, payments, and account activity.</li><li>Work closely with the accounting team to identify opportunities for improved workflows and processes.</li><li>Assist with general accounting administration and additional tasks as assigned.</li></ul>
2026-11-06T00:00:00Z

Accounting Clerk

Walnut Creek, CA
onsite
Permanent / Full Time
0 - 0 USD / Hourly
Join Robert Half’s Full-Time Engagement Professionals (FTEP) practice as an Accounting Clerk and gain hands-on experience supporting a variety of client projects. You’ll contribute across key accounting functions, including accounts payable, accounts receivable, billing, collections, and general accounting. We’re looking for detail-oriented candidates with intermediate Excel skills and a strong foundation in accounting or finance. A degree in Accounting, Finance, or a related field is preferred. For more information, please contact Tawnia Kirshen via LinkedIn and send your resume to my email found there. Key Responsibilities<ul><li>Support AP, AR, billing, collections, and daily accounting operations.</li><li>Process invoices, post payments, and maintain vendor and customer accounts.</li><li>Generate invoices, review aging reports, and follow up on past-due balances.</li><li>Reconcile accounts, research discrepancies, and maintain accurate records.</li><li>Perform high-volume data entry with accuracy and efficiency.</li><li>Assist with cash application, payment tracking, and account updates.</li><li>Respond to vendor, customer, and internal inquiries professionally.</li><li>Maintain documentation, support month-end close, and use Excel for reporting and analysis.</li><li>Adapt quickly to new client systems and processes while providing quality support.</li></ul>
2026-11-03T00:00:00Z

Accounting Clerk

Livermore, CA
onsite
Permanent / Full Time
24.5 - 28.5 USD / Hourly
Launch your accounting career with Robert Half’s Full-Time Engagement Professionals (FTEP) program! As an Accounting Clerk, gain hands-on experience across accounts payable, receivable, billing, collections, and general accounting while supporting diverse client engagements. Enjoy full-time stability, professional growth, and exposure to leading organizations. Candidates should have intermediate Excel skills, strong attention to detail, and a degree in accounting, finance, or a related field. For more information, please contact Tawnia Kirshen via LinkedIn and send your resume to my email found there. Key Responsibilities<ul><li>Support day-to-day accounting operations across accounts payable, accounts receivable, billing, and collections.</li><li>Process invoices, post payments, and assist with vendor and customer account maintenance.</li><li>Generate and distribute invoices, monitor aging reports, and follow up on outstanding balances.</li><li>Reconcile account activity and research discrepancies to support accurate financial records.</li><li>Perform high-volume data entry with speed and accuracy.</li><li>Assist with cash application, payment tracking, and account updates.</li><li>Respond to vendor, customer, and internal inquiries in a timely and professional manner.</li><li>Maintain organized accounting documentation and support month-end close activities as needed.</li><li>Use Excel to prepare reports, track account activity, and support data review and analysis.</li><li>Adapt quickly to new client systems, workflows, and processes while delivering high-quality support.</li></ul>
2026-11-02T00:00:00Z

Accounting Clerk

Concord, CA
onsite
Temporary / Contract
24 - 28 USD / Hourly
Accounting ClerkEmployment Type: Contract About the Role:Are you an organized, detail-oriented individual looking to build a rewarding career in accounting? Join Robert Half as an Accounting Clerk where you will play a pivotal role in maintaining accurate financial records and supporting the daily operations of the accounting department. This is an excellent opportunity for someone passionate about numbers and efficiency to grow within a collaborative and supportive environment. Key Responsibilities:<ul><li>Perform data entry and maintain accurate and up-to-date financial records.</li><li>Process accounts payable and accounts receivable transactions.</li><li>Assist with bank reconciliations and general ledger entries.</li><li>Prepare, track, and ensure the timely processing of invoices and payments.</li><li>Support in the preparation of financial statements and reports as needed.</li><li>Assist with month-end and year-end closing activities.</li><li>Respond to inquiries regarding financial transactions and records.</li><li>Collaborate with team members to streamline accounting processes and increase efficiency.</li><li>Provide administrative support to the accounting team and other duties as required.</li></ul>
2026-10-26T00:00:00Z

Accounting Clerk

San Ramon, CA
onsite
Permanent / Full Time
24.5 - 30.5 USD / Hourly
Launch your accounting career with Robert Half’s Full-Time Engagement Professionals (FTEP) program! As an Accounting Clerk, gain hands-on experience across accounts payable, receivable, billing, collections, and general accounting while supporting diverse client engagements. Enjoy full-time stability, professional growth, and exposure to leading organizations. Candidates should have intermediate Excel skills, strong attention to detail, and a degree in accounting, finance, or a related field. For more information, please contact Tawnia Kirshen via LinkedIn and send your resume to my email found there. Key Responsibilities<ul><li>Support day-to-day accounting operations across accounts payable, accounts receivable, billing, and collections.</li><li>Process invoices, post payments, and assist with vendor and customer account maintenance.</li><li>Generate and distribute invoices, monitor aging reports, and follow up on outstanding balances.</li><li>Reconcile account activity and research discrepancies to support accurate financial records.</li><li>Perform high-volume data entry with speed and accuracy.</li><li>Assist with cash application, payment tracking, and account updates.</li><li>Respond to vendor, customer, and internal inquiries in a timely and professional manner.</li><li>Maintain organized accounting documentation and support month-end close activities as needed.</li><li>Use Excel to prepare reports, track account activity, and support data review and analysis.</li><li>Adapt quickly to new client systems, workflows, and processes while delivering high-quality support.</li></ul>
2026-11-02T00:00:00Z

Immigration Legal Assistant

San Jose, CA
onsite
Temporary / Contract
28 - 35 USD / Hourly
We are seeking an experienced immigration professional to support high-volume employment-based immigration matters, with a primary focus on independently preparing I-140 petitions and assisting with H-1B filings. This role requires a detail-oriented and highly organized Legal Assistant or Paralegal who can manage a substantial case inventory, meet strict deadlines, and work effectively with minimal supervision. This Legal Assistant must work on-site in San Jose, CA. Key Responsibilities:<ul><li>Independently prepare high-volume I-140 petitions from intake through filing.</li><li>Review supporting documentation for completeness, accuracy, and consistency.</li><li>Conduct case assessments and identify eligibility, documentary, or procedural issues.</li><li>Assemble petitions and filing packages, including forms, exhibits, and supporting evidence.</li><li>Perform quality control reviews to ensure accuracy and compliance before submission.</li><li>Manage filing procedures, including final assembly, shipment, and case tracking.</li><li>Prepare H-1B forms and supporting documentation.</li><li>Coordinate Labor Condition Applications (LCAs) and monitor related timelines.</li><li>Review position details, worksite information, and client-provided data for accuracy.</li><li>Identify missing, incomplete, or inconsistent information and follow up as needed.</li><li>Maintain organized case records and manage matters through submission.</li><li>Prioritize a high-volume caseload while meeting established and compressed deadlines.</li></ul>
2026-10-30T00:00:00Z

20 results for Office Assistant in Manteca, CA