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44 results for Office Administrative Assistant in Concord, CA

Accounting Assistant

San Leandro, CA
onsite
Temporary / Contract
22 - 28 USD / Hourly
We are seeking an organized and detail-oriented Accounting Assistant to support the accounting team in handling accounts payable (AP) and accounts receivable (AR) functions. This role is ideal for early-career professionals or recent graduates looking to grow their experience in accounting and finance while contributing to the smooth operation of our organization's financial processes. Key Responsibilities:<ul><li>Assist with the processing, verification, and reconciliation of invoices in accounts payable.</li><li>Support accounts receivable by tracking incoming payments, issuing invoices, and managing customer account records.</li><li>Perform data entry into accounting systems to ensure the accuracy of financial records.</li><li>Help resolve discrepancies, including research and communication with vendors and clients.</li><li>Prepare and review weekly reports related to AP and AR activities.</li><li>Maintain proper documentation of financial transactions in compliance with company policies.</li><li>Partner with team members to ensure timely month-end and year-end close processes.</li><li>Provide administrative support to accountants and finance staff as needed.</li><li>Learn and work within various accounting software systems.</li></ul>
2026-08-05T00:00:00Z

Marketing and Office Assistant

Walnut Creek, CA
onsite
Temporary to Hire
27 - 37 USD / Hourly
Robert Half's construction client is looking for a Marketing Assistant to join a construction industry team in Walnut Creek, California. This contract-to-permanent opportunity is ideal for someone who enjoys balancing marketing coordination with administrative support in a fast-paced office setting. In this role, you will contribute to proposals, promotional materials, social media activity, event planning, and day-to-day executive support while gaining the opportunity to grow within a dynamic work environment. Marketing Assistant Responsibilities:• Develop and format proposals, presentation decks, qualification packages, and other branded materials with a strong eye for accuracy and visual consistency.• Refresh and organize marketing content such as staff bios, project summaries, case studies, and collateral used for business development efforts.• Support content development by researching information, editing copy, and preparing materials needed for client-facing submissions and campaigns.• Coordinate social media activity by preparing posts, managing publishing schedules, and helping maintain an active presence across key platforms.• Maintain marketing and sales support resources, track ongoing initiatives, and assist with reporting related to engagement and campaign performance.• Help organize corporate events, industry conferences, sponsorships, and networking activities by handling logistics, communications, and execution details.• Provide administrative assistance to leadership through calendar coordination, meeting scheduling, travel planning, and related office support tasks.• Assist with general office operations, respond to correspondence and inbound inquiries, and contribute to special projects as needed.• Use business development, CRM, and AI-enabled tools to support marketing workflows, content preparation, and operational efficiency where appropriate. If you are interested in this Marketing Assistant position, please submit your resume today!
2026-08-14T00:00:00Z

Admin Assistant/EA/HR Support

San Mateo, CA
onsite
Permanent / Full Time
90000 - 100000 USD / Yearly
Administrative Assistant/EA/HR Assistant Exciting growing Ai company is seeking an Administrative Assistant to join their growing team. This role blends executive assistance, office coordination, and HR support in a fast-moving AI company environment. Position offers excellent benefits, bonus, and equity.Responsibilities:• Manage executive scheduling, coordinate travel arrangements, and prepare expense submissions with accuracy and timeliness.• Provide administrative support to leadership, including assistance with HR-related coordination and routine operational tasks.• Serve as the primary on-site point of contact for guests and clients, ensuring a welcoming, well-run, and attentive office experience.• Oversee day-to-day office operations by maintaining common areas, restocking kitchen and office supplies, and arranging meals for meetings or visitors.• Support presentations, meetings, and client demonstrations by setting up materials and troubleshooting basic technology needs.• Coordinate internal meetings, team events, and company-wide gatherings to ensure logistics run smoothly from planning through execution.• Manage front desk and reception activities, including greeting visitors, answering the door, and directing inquiries appropriately.• Handle confidential communications and sensitive information with sound judgment and close attention to detail.• Provide broad administrative assistance as needed and take on additional duties assigned by the reporting manager.
2026-07-28T00:00:00Z

Legal Receptionist

San Francisco, CA
onsite
Temporary / Contract
22 - 28 USD / Hourly
A San Francisco–based law firm is seeking a professional and client-focused Legal Receptionist to serve as the first point of contact for attorneys, clients, and visitors. This is a contract-to-hire opportunity for someone who excels in a fast-paced, detail-oriented legal environment and takes pride in providing exceptional front-desk and administrative support. The Legal Receptionist will manage daily reception operations, maintain a welcoming office atmosphere, and support attorneys and legal staff with light administrative tasks to ensure smooth day-to-day operations. Key Responsibilities<ul><li>Greet and assist clients, visitors, and vendors in a professional and courteous manner</li><li>Answer and route incoming phone calls, take accurate messages, and manage voicemail systems</li><li>Maintain lobby, conference rooms, and reception areas to ensure a polished and organized office environment</li><li>Coordinate conference room scheduling and assist with meeting setup as needed</li><li>Receive, sort, and distribute mail and courier deliveries</li><li>Assist with basic administrative tasks such as data entry, filing, scanning, and document preparation</li><li>Support attorneys, paralegals, and legal assistants with ad hoc administrative requests</li><li>Monitor office supplies and coordinate restocking as needed</li><li>Ensure compliance with firm confidentiality and professionalism standards</li></ul>
2026-08-03T00:00:00Z

Human Resources Assistant

Oakland, CA
onsite
Temporary / Contract
25 - 27 USD / Hourly
Position SummarySupport the HR department with onboarding, employee records management, and administrative functions.Responsibilities<ul><li>Assist with onboarding and new hire paperwork.</li><li>Maintain employee records.</li><li>Schedule interviews and meetings.</li><li>Support benefits and HR inquiries.</li><li>Ensure document compliance.</li></ul>
2026-07-31T00:00:00Z

Legal Assistant

San Francisco, CA
onsite
Temporary / Contract
25 - 32 USD / Hourly
A San Francisco–based personal injury law firm is seeking a motivated and detail-oriented Legal Assistant to support its civil litigation practice. This is a contract-to-hire opportunity offering hands-on experience in a collaborative, plaintiff-side law firm environment with long-term potential. The Legal Assistant will provide essential administrative and case support to attorneys and paralegals handling civil litigation matters, primarily personal injury cases. This role is ideal for a legal professional looking to deepen their litigation experience while contributing to the day-to-day operations of a fast-paced firm. Key Responsibilities<ul><li>Provide administrative and litigation support to attorneys and paralegals</li><li>Assist with drafting, formatting, and proofreading legal documents and correspondence</li><li>Help prepare and organize pleadings, discovery, and case materials</li><li>Maintain and organize electronic and physical case files</li><li>Track deadlines, assist with calendaring, and schedule meetings and appointments</li><li>Coordinate with clients, court personnel, experts, and vendors as needed</li><li>Assist with court filings and service of documents under attorney direction</li><li>Support trial preparation and other litigation-related tasks as assigned</li></ul>
2026-08-03T00:00:00Z

Legal Assistant

Oakland, CA
onsite
Permanent / Full Time
70000 - 80000 USD / Yearly
We are looking for an experienced Workers Compensation Legal Assistant to support attorneys in a fast-paced law practice. This position is ideal for someone who is highly organized, communicates effectively, and can manage multiple priorities with accuracy and professionalism. The role offers a primarily remote schedule, with weekly in-office attendance and initial onsite training for new hires. Responsibilities:• Oversee attorney schedules by tracking key dates, monitoring deadlines, and helping ensure timely case progression.• Arrange litigation-related events such as depositions, hearings, trials, and medical evaluations while coordinating with all relevant parties.• Build, update, and maintain well-organized client matter files so documents and case information remain complete and accessible.• Prepare clear and accurate written communications for external contacts, including counsel, insurance representatives, witnesses, and service providers.• Draft legal documents and supporting materials for court submission, including pleadings and electronic filings.• Handle incoming and outgoing correspondence and mail, ensuring timely distribution and proper case documentation.• Provide day-to-day administrative and legal support to assigned attorneys across a range of case activities.• Participate in onsite training during the onboarding period and report to the office once each week thereafter.
2026-07-31T00:00:00Z

Human Resources (HR) Assistant

Stockton, CA
onsite
Temporary / Contract
24.7 - 26 USD / Hourly
We are looking for a detail-oriented Human Resources Assistant to support daily HR operations for a Contract position based in Stockton, California. In this role, you will serve as a key point of contact for employee questions, assist with onboarding activities, and provide administrative support across core HR functions. The ideal candidate brings at least 2 years of experience in human resources and is comfortable interacting with employees and leaders at all levels of the organization. Familiarity with Paycom is important to help respond to system-related inquiries and support routine HR processes effectively. Responsibilities: • Respond to day-to-day employee questions and provide timely guidance on HR-related matters. • Support onboarding activities by coordinating documentation, communications, and orientation-related tasks. • Assist with employee relations matters by helping route inquiries and maintain appropriate follow-up. • Conduct and track candidate screening activities to support the hiring process. • Provide administrative support for a range of HR functions, including record maintenance and routine correspondence. • Use Paycom to help address user questions, review information, and support HR team processes within the system. • Work closely with employees, supervisors, and leadership to ensure clear communication and consistent HR support.
2026-07-27T00:00:00Z

Legal Assistant/Paralegal

Oakland, CA
onsite
Permanent / Full Time
80000 - 103000 USD / Yearly
Litigation SecretaryA midsize East Bay law firm is seeking a full-time Litigation Secretary to support its litigation practice. The ideal candidate will be highly organized, detail-oriented, and experienced with calendaring and case coordination. Familiarity with PowerPoint, Excel, WordPerfect, Adobe, Microsoft Office, Abacus, and MerusCase is a plus. The ability to multitask, work well under pressure, and communicate effectively is essential.This firm offers excellent benefits, and compensation is commensurate with experience. Key Responsibilities:<ul><li>Manage calendaring and scheduling for client appointments, depositions, court appearances, court reporters, and mediations</li><li>Assist with trial preparation</li><li>Prepare exhibit binders and indexes</li><li>E-file documents in state and federal courts</li><li>Draft court documents, pleadings, notices of deposition, and complaints</li><li>Communicate with outside vendors</li><li>Subpoena records and complete/send related forms to vendors</li><li>Process billing</li><li>Support preparation of TOAs and TOCs</li></ul>Qualifications:<ul><li>Typing speed of 60+ WPM</li><li>Prior litigation support experience preferred</li><li>Strong organizational and multitasking skills</li><li>Ability to thrive in a fast-paced environment</li></ul>
2026-07-31T00:00:00Z

Accounting Clerk

Walnut Creek, CA
onsite
Temporary / Contract
24 - 27 USD / Hourly
We are looking for an Accounting Clerk to join our client in Walnut Creek, California on a Contract basis. This position supports both accounts payable and accounts receivable activities, with a strong focus on accuracy, organization, and responsive service. The role is well suited to someone who can manage detailed financial tasks, communicate clearly with residents, and maintain a detail-oriented, calm approach. Responsibilities: • Review and process a high volume of vendor invoices each week, ensuring supporting documentation is complete and matched accurately before payment.• Verify invoice coding generated through the NetSuite add-on tool and make corrections as needed to maintain accurate financial records across multiple entities.• Support accounts receivable activities related to resident move-ins and move-outs, including updating account details and recording charges correctly.• Set up and manage direct debit payment arrangements for residents while confirming information is entered accurately.• Respond to resident account inquiries and provide clear, courteous assistance regarding balances, payments, and billing matters.• Perform detailed data entry and maintain organized accounting records to support daily financial operations.• Coordinate with internal team members to help resolve discrepancies in payable and receivable transactions in a timely manner.• Use NetSuite for transaction processing and routine account maintenance while handling minimal Excel-related tasks as needed.
2026-08-11T00:00:00Z

Accounting Clerk

Pleasanton, CA
onsite
Permanent / Full Time
25.5 - 30.5 USD / Hourly
Join Robert Half's Full-Time Engagement Professionals (FTEP) practice as an Accounting Clerk. Build your experience by supporting diverse client projects across accounts payable, accounts receivable, billing, collections, and general accounting. We're seeking candidates with 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>
2026-07-31T00:00:00Z

Accounting Clerk

Concord, CA
onsite
Temporary to Hire
23.75 - 27.5 USD / Hourly
We are looking for an entry-level Accounting Clerk to join a construction-focused team in Contra Costa County, California on a contract basis with the potential for a permanent position. This opportunity is well suited for someone with accounting knowledge or related education who wants to build hands-on experience in project billing and financial support within a busy office setting. The role will contribute to billing accuracy, payroll assistance, and project documentation while working closely with project managers, subcontractors, and internal accounting staff. Responsibilities:• Coordinate daily project billing tasks and help keep invoicing activities accurate, organized, and on schedule.• Review, enter, and monitor change order information to ensure project records remain current and complete.• Provide support for payroll-related processing by gathering documentation and assisting with related administrative tasks.• Maintain billing files, backup records, and supporting financial information with a high degree of accuracy.• Perform large-volume data entry work efficiently while checking details carefully to reduce errors.• Communicate with project managers, subcontractors, and internal departments to address questions tied to billing or account activity.• Investigate discrepancies in billing or payroll information and assist in resolving issues in a timely manner.
2026-08-12T00:00:00Z

Accounting Clerk

Walnut Creek, CA
onsite
Temporary / Contract
25 - 30 USD / Hourly
We are seeking an experienced Accounts Payable Specialist for a short-term temporary project. This position will provide additional support to a busy accounting department by processing invoices, reconciling vendor accounts, and assisting with an accounts payable backlog. Responsibilities:<ul><li>Review, code, and enter vendor invoices</li><li>Match invoices with purchase orders and receiving documentation</li><li>Obtain required invoice approvals</li><li>Research and resolve invoice and payment discrepancies</li><li>Reconcile vendor statements and follow up on missing invoices</li><li>Assist with check runs, ACH payments, and other payment processing</li><li>Maintain accurate vendor records and supporting documentation</li><li>Respond to vendor inquiries regarding invoices and payment status</li><li>Assist with cleaning up aging accounts and unapplied credits</li><li>Support additional accounts payable projects as needed</li></ul> This is a short-term temporary assignment for someone who can quickly step in, work independently, and help the accounting team complete a time-sensitive project.
2026-08-13T00:00:00Z

Accounting Clerk

Livermore, CA
onsite
Permanent / Full Time
24.5 - 28.5 USD / Hourly
Launch your career with Robert Half's Full-Time Engagement Professionals (FTEP) practice as an Accounting Clerk. Gain hands-on experience supporting a variety of client engagements across accounts payable, accounts receivable, billing, collections, and general accounting. 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 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>
2026-07-31T00:00:00Z

Accounting Clerk

Hayward, CA
onsite
Permanent / Full Time
25.5 - 30.5 USD / Hourly
Join our Full-Time Engagement Professionals team as an Accounting Clerk, supporting client projects with accounts payable, accounts receivable, billing, collections, and general accounting. Ideal candidates have intermediate Excel skills, strong data entry accuracy, commute flexibility, and a degree in accounting, finance, or a related field. Great opportunity to learn and grow in your career! 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>
2026-07-31T00:00:00Z

Accounting Clerk

Benicia, CA
onsite
Permanent / Full Time
25.5 - 28.5 USD / Hourly
Are you an accounting professional looking for a role with variety and growth potential? Our team is hiring an Accounting Clerk for our Full-Time Engagement Professionals program. This full-time role offers the stability of full-time employment, the chance to support different clients and projects, and valuable experience to strengthen your skills, broaden your background, and grow your career. 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>
2026-07-31T00:00:00Z

Accounting Clerk

San Ramon, CA
onsite
Permanent / Full Time
24.5 - 30.5 USD / Hourly
Launch your career with Robert Half's Full-Time Engagement Professionals (FTEP) practice as an Accounting Clerk. Gain hands-on experience supporting a variety of client engagements across accounts payable, accounts receivable, billing, collections, and general accounting. 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 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>
2026-07-31T00:00:00Z

Accounting Clerk

Emeryville, CA
onsite
Temporary / Contract
25 - 28 USD / Hourly
We are looking for a contract accounting clerk to assist a client located in Emeryville, CA for approximately 2-3 months. This position is based 100% onsite in Emeryville, CA.Schedule is Monday to Friday, 8AM-5PM. The Accounting Clerk will work between the various teams to support both teams’ data and administrative duties. <ul><li>Assist with invoices, prepare payment requests, and coordinate approvals.</li><li>Assist with AP, AR and payroll support</li><li>Monitor team email, review and forward to appropriate contact.</li><li>Monitor team mailbox and forward to appropriate contact. Track notices received, responses submitted and notice resolution.</li><li>Mail correspondence, check payments and returns, when necessary.</li><li>Coordinate documents for signature with company directors and officers.</li><li>Assist with the preparation of state compliance reports and tax returns.</li><li>Support the data entry process into reporting modules.</li><li>Perform ad hoc responsibilities, as needed.</li></ul>
2026-08-04T00:00:00Z

Accounting Assistant 4

San Francisco, CA
onsite
Temporary / Contract
25 - 28 USD / Hourly
We are looking for a detail-oriented Accounting Assistant to support medical billing and core accounting operations for a busy office in San Francisco, California. This is a Contract position suited for someone who enjoys balancing financial tasks with administrative coordination in a deadline-driven environment. The ideal candidate takes a detail-oriented, service-focused approach, communicates well with internal teams and external contacts, and stays organized while managing a high volume of work. Responsibilities:• Process incoming invoices each day, assign the appropriate coding, and verify that all required backup documentation is complete before entry.• Record cash receipts, apply billing updates, and help maintain accurate accounts receivable activity across tenant and client accounts.• Support accounts payable functions by entering invoices, setting up vendor records, and responding to payment-related questions from shared services and other stakeholders.• Prepare recurring financial reports and assist with monthly documentation needed by accounting leadership.• Provide day-to-day administrative support to the Accounting Manager, General Manager, and Assistant General Manager, including drafting, updating, and finalizing business documents.• Coordinate vendor agreement paperwork and help maintain organized files that can be easily reviewed and retrieved.• Contribute to special assignments and priority projects while meeting accounting deadlines in a fast-paced office setting.• Work collaboratively with internal teams while also handling assigned tasks independently and effectively.
2026-08-13T00:00:00Z