322 Results for

Business Assistant Jobs in Riverside, CA

Jobs

New!

Rancho Cucamonga, CA3 days ago

$5,196 Per Month
Contractor

Assist in the development and preparation of reports, board items, budgets, and grant proposals; verify information and calculations; collect data and provides research assistance for various studies and reports; assist in the monitoring of budget expenditures, research variances and discrepancies, and recommend changes to budget accounts; prepare and process purchase orders and requisitions. May function as office coordinator for a college service area; coordinate work of clerical staff in various component programs; assess hourly staff skill levels and provide or arrange training as needed; coordinates accounting systems of component programs.

New!

Irvine, CA2 days ago

$23–$26

Determining compensation for this role (and others) at Vaco by Highspring depends upon a wide array of factors including but not limited to: the individual’s skill sets, experience and training; licensure and certification requirements; office location and other geographic considerations; other business and organizational needs. Determining compensation for this role (and others) at Vaco/Highspring depends upon a wide array of factors including but not limited to the individual’s skill sets, experience and training, licensure and certifications, office location and other geographic considerations, as well as other business and organizational needs.

New!

Brea, CA2 days ago

$23–$25

New!

Brea, CA1 day ago

$90,000–$110,000 Per Year

Job Description: Support Project Managers, manage jobsites when PM is unavailable, project reports/docs/planning, RFIs, change orders, takeoffs, field/GC/client relations, assist with project cost controls, submittals, and coordination . Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.

New!

Irvine, CA3 days ago

$19.36–$28 Per Hour

Lennar is one of the nation's leading homebuilders, dedicated to making an impact and creating an extraordinary experience for their Homeowners, Communities, and Associates by building quality homes and providing exceptional customer service, giving back to the communities in which we work and live in, and fostering a culture of opportunity and growth for our Associates throughout their career. Requires the ability to work more than eight hours per day in the confined quarters of a construction trailer, the ability to operate a motor vehicle, read plans, climb stairs and ladders, bend, stoop, reach, lift, move and/or carry equipment which may be in excess of 50 pounds.

New!

Irvine, CA4 days ago

$20–$31 Per Hour

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. A growing public accounting team is seeking a detail-focused Tax Administrative Assistant to support tax professionals with the preparation, assembly, and delivery of client returns.

Murrieta, CA12 days ago

$54,000–$62,000 Per Year

As an Assistant Sales Manager , you will support daily sales operations by working closely with customers, guiding team members, and helping drive consistent results. This Assistant Sales Manager role is ideal for someone who enjoys leading by example, communicating clearly, and balancing customer service with sales performance.

New!

Orange, CA5 days ago

$48,000–$60,000 Per Year

At SD Premier Consulting, we help people sharpen their leadership skills, master communication, and learn how to run successful sales operations from the ground up. Entry Level Assistant Manager must also support management in daily operations, event coordination, and client relations.

New!

Lake Elsinore, CA6 days ago

Whether you are visiting patients near the scenic vineyards of Temecula or the vibrant lakefronts of Elsinore and Canyon Lake, you'll find a family-friendly atmosphere rich with breweries, local eateries, and water activities. Looking for someone covering any part of: Murrieta, Temecula, Wildomar, Lake Elsinore, Nuevo, Lakeview, Perris, Lake Mathews, Menifee, Sun City, Romoland, Canyon Lake, Quail Valley #broadbean.

New!

Jurupa Valley, CA6 days ago

$70,000–$90,000 Per Year
Temporary

This role requires a hands-on leader who can manage core accounting functions, ensure regulatory compliance, and provide strategic financial insights to support business decisions. The Controller will play a key role in driving financial efficiency, maintaining accurate reporting, and partnering with leadership across departments.

New!

Corona, CA6 days ago

Temporary

The ideal candidate will be comfortable managing front desk responsibilities, assisting with administrative tasks, and providing excellent customer service in a fast-paced environment. We are seeking a professional and organized Receptionist / Administrative Assistant to join our team.

New!

Riverside, CA2 days ago

$35,000–$42,000 Per Year

See Sharp HealthCare Terms & Conditions at https://www.sharp.com/patient-rights-privacy/terms-of-use.cfm and Privacy Policy at https://www.sharp.com/patient-rights-privacy/privacy-practices.cfm and SonicJobs Privacy Policy at https://www.sonicjobs.com/us/privacy-policy and Terms of Use at https://www.sonicjobs.com/us/terms-conditions. The actual pay rate and pay grade for this position will be dependent on a variety of factors, including an applicant’s years of experience, unique skills and abilities, education, alignment with similar internal candidates, marketplace factors, other requirements for the position, and employer business practices.

New!

Riverside, CAToday

$35,000–$42,000 Per Year

Murrieta, CA10 days ago

As a Family Law Assistant, you'll play a vital role in supporting our dedicated team, ensuring seamless case management, and delivering personalized service. Legal Secretarial experience is preferred, but in some cases, experience as a file clerk, receptionist, or project assistant will suffice.

New!

Brea, CA2 days ago

$23–$25

New!

Irvine, CA4 days ago

Full-time
Employee

3+ years of experience supporting C-suite executives (ideally CFO, CAO, or similar leadership roles)Prior experience within real estate, property management, finance, or a related industry is highly preferredStrong organizational and time management skills with the ability to multitask and prioritize effectivelyExcellent written and verbal communication skills, with a polished and professional demeanorHigh level of integrity, discretion, and sound judgment when handling confidential informationAdvanced proficiency in Microsoft Office Suite (Outlook, Excel, PowerPoint, Word); experience with tools like Teams or SharePoint is a plus. Determining compensation for this role (and others) at Vaco by Highspring depends upon a wide array of factors including but not limited to: the individual’s skill sets, experience and training; licensure and certification requirements; office location and other geographic considerations; other business and organizational needs.

Ontario, CA30+ days ago

$21–$26 Per Hour

At Fletcher Jones, we attract, nurture, and retain the most talented people in the industry by providing the highest quality work environment where productivity, creativity, and personal and professional growth can flourish. We are currently hiring a Business Office Assistant to join our centralized Regional Business Office team located in Ontario, California!

Corona, CA20 days ago

$20–$25 Per Hour

Communication Technology Services, CTS, is one of the largest integrators and managed service providers for mobile networks in the U.S. The company specializes in the design, installation and support of Distributed Antenna System (DAS), Small Cell, and 4G/5G Private Wireless Networks for the mobile network operators, enterprise and venue owners and network infrastructure owners. Support construction billing processes, including invoice preparation, change order tracking, cost reconciliation, and maintaining accurate billing and financial records.

Irvine, CA30+ days ago

JOYA Health Membership – Access to over $1,000 in annual skin health and wellness benefits, including complimentary facials or peels, aesthetic service credits, priority skin cancer screenings, teledermatology services, and discounts on skincare products. Scammers might reference real job openings or describe fake opportunities that generally match individuals' professional backgrounds, with the goal of establishing communication and eventually obtaining private financial information to defraud people.

Santa Ana, CA26 days ago

The successful candidate will be a part of a national team of 300 lawyers and professional staff spread across nine offices located in Atlanta, Buffalo, Charleston, Chicago, Dallas, Detroit, Los Angeles, Napa, New York, Orange County, Raleigh, St. Louis, San Diego, San Francisco and West Virginia. HPY represents a variety of clients from global corporations to small local businesses and individual clients in high-risk litigation and business disputes across the country and U.S. Territories.

Irvine, CA30+ days ago

Full-time

This role will provide a mix of office coordination, administrative support, scheduling assistance, event preparation, and occasional personal errand support for business leaders and the broader team. The Administrative Assistant will play an important role in helping the office and leadership team operate smoothly, efficiently, and with a high level of follow-through.

Brea, California7 days ago

$18–$20

In this role you will provide direct support to the owners by taking on a wide variety of tasks and projects, allowing them to focus on running the company at a high level. CHECK US OUTCheck out our career page to learn more about the opportunities we have available: https://cbphysicaltherapy.com/careers-at-cbpt/ .

New!

Riverside, CA3 days ago

In this role you will support daily operations by managing payroll processes, tracking productivity, maintaining employee records, and coordinating administrative functions. Are you a superhero at assisting others and adding tons of value to a growing team?

New!

Irvine, CA4 days ago

$17.50–$23.15 Per Hour

Prefer experience directly related to licensing, preferably working for a direct sales vehicle manufacturer or a highly regulated industry. Experience directly related to licensing, preferably working for a direct sales vehicle manufacturer or a highly regulated industry.

New!

San Bernardino, CA1 day ago

$18–$21 Per Hour

Minimum qualifications include a high school diploma and one year of clerical experience, strong communication and computer skills, and the ability to work with diverse populations. Responsibilities include answering phones, scheduling and confirming appointments, assisting with events and outreach, updating databases, managing promotional materials, and supporting campaigns.

New!

Claremont, CA1 day ago

$33.65–$38.46 Per Hour

Requirements include a bachelor’s degree in Business Administration or related field, 5+ years of admin experience, proficiency in MS Office, strong organizational and communication skills, and ability to handle sensitive information. Responsibilities include tracking deadlines, assisting with academic and administrative tasks, supporting events, and supervising staff.

New!

Riverside, CA1 day ago

$20.50–$28.50 Per Hour

Requirements include an Associate's Degree in business or related field, 3+ years of experience, and knowledge of office technology. Open to a flexible two-day schedule on Tuesdays and Wednesdays.

Irvine, CA14 days ago

Must have working knowledge of a variety of computer software applications including word processing, spreadsheets, email, and presentation software (MSWord, Excel, Outlook, PowerPoint, and Teams), and other technical software and database (SharePoint, etc.) programs. Maintains matter-related and general office files per company directives (hard copies, electronic, archived, vendor files) and other files related to the company’s business.

Upland, California30+ days ago

$17–$19

We provide a variety of services including: Monthly bookkeeping, Income Tax Preparation for all types of businesses and individuals, IRS and State Audit Representation, Payroll Reporting, Business startup services, and financial statements. Key responsibilities include:Answering phones, greeting clients, managing files, ordering supplies, and performing general clerical tasks like data entry and filing.

New!

Yorba Linda, CA3 days ago

Remote

$58,734–$66,364

FCG offers a wide range of professional services, including engineering, planning, design, program management, construction management, and business development services for municipal, federal, and private sector clients. With a strong commitment to quality and client satisfaction, FCG delivers practical, cost-effective solutions through a team of experienced professionals dedicated to helping clients achieve their goals and project objectives.

Irvine, CA30+ days ago

$40–$45
Contractor

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. This is a high‑level contract role ideal for an experienced legal assistant who can step in with minimal ramp‑up and provide seamless support to multiple attorneys in an active litigation practice.

New!

Santa Ana, CA6 days ago

Examples include picking up dry cleaning, making purchases on the CEO’s behalf, running errands at any time of day, dropping off or picking up items, coordinating personal appointments, and handling tasks that come up day-to-day with little notice. Given the access this role has to personal finances, personal information, and the CEO’s private and family life, all final candidates will be subject to a complete background check — including criminal history, credit history, and reference verification.

Mission Viejo, CA30+ days ago

The Business Office Coordinator (BOC) is responsible for assisting the community with business administration, human resources, and system related business processes such as, Payroll and Human Resources Administration, Recruitment Administration and Process, Information Monitoring/Process and Systems, Financial Systems Close and Management, Business Processes-Key Controls, Technical/Professional Knowledge, and Quality Assurance. Partner with leadership team by championing the overall recruitment process; process candidates in the ATS system and perform background screenings, license verifications, and other required screenings/verifications per applicable federal and state laws/provincial labor/labour laws and Sunrise policy.

Ontario, California11 days ago

$19.44–$26.27 Per Hour

A minimum of one year’s experience performing increasingly complex and highly responsible office and administrative/secretarial support work of which involved administrative support work in an academic or business office environment preferred. Assist and coordinate the flow of incoming and outgoing communications by routing documents to and from appropriate parties including obtaining signatures, gathering, and relaying information as needed and returning signed documents to requestors.

Santa Ana, CA30+ days ago

$19–$24 Per Hour

Prepare and review reports, records, and directives, and confer with managers/supervisors to obtain data required for planning activities, such as new commitments, status of work in progress, and problems encountered. Assists by providing direction for the manufacturing associates/department, including safety, morale, production schedule attainment, quality, and enforcing company policies and procedures.

Lake Elsinore, CA30+ days ago

$20–$25 Per Hour

With over two decades of expertise in the construction industry, Quality Mobile Home Services, Inc. (QMHS) is in search of a committed Bookkeeper/Administrative Assistant to join our team at our corporate headquarters in Lake Elsinore, CA. Our corporate headquarters is located in Lake Elsinore, CA, with a Northern California office in the Pleasanton/Dublin area, and Mesa, Arizona.

New!

Moreno Valley, CA4 days ago

We provide a wide range of support services to other City departments including budget coordination; financial reporting; payroll; billing and accounts receivable; purchasing and central stores; accounts payable; cash management and investing; cashiering; technology services including network administration and security, enterprise systems and database administration, geographic information systems, backbone infrastructure and telecommunications; and maintenance service for all City facilities. Management Assistant is distinguished from Management Analyst in that incumbents in the latter class perform more difficult research assignments involving gathering and interpretation of data from multiple sources on issues of significant impact and importance, while exercising sound judgment in formulating study approach and analytical techniques necessary to achieve expected study results.

Irvine, CA30+ days ago

This trusted role ensures seamless coordination of complex schedules, travel, healthcare logistics, and events, enabling the Principals to remain focused on their philanthropic, cultural, and community leadership commitments. The Senior Executive Assistant provides high-level personal, health, life, and business support to three executives across two generations of Principals in a private family office.

Mira Loma, CA19 days ago

$76,500–$80,500

This position requires proven experience as an EA, with the ability to manage complex schedules, prioritize competing demands, and maintain the highest level of professionalism and discretion. We are dedicated to improving health outcomes by addressing social determinants of health and coordinating comprehensive community-based services, particularly through our programs.

Orange, California30+ days ago

Misconduct Disclosure Requirement: As a condition of employment, the final candidate who accepts a conditional offer of employment will be required to disclose if they have been subject to any final administrative or judicial decisions within the last seven years determining that they committed any misconduct; received notice of any allegations or are currently the subject of any administrative or disciplinary proceedings involving misconduct; have left a position after receiving notice of allegations or while under investigation in an administrative or disciplinary proceeding involving misconduct; or have filed an appeal of a finding of misconduct with a previous employer. Under the supervision of the Hospital Medicine & Palliative Medicine faculty and guided by the applicable policies and procedures, the Physician Assistant will participate in the comprehensive care of patients in the ambulatory or inpatient settings and provide multi- disciplinary care coordination, treatment, education, monitoring, and communication with patients and referring physicians.

Orange, California30+ days ago

Corona del Mar, CA30+ days ago

$130,000–$150,000 Per Year

Coordinate with the CEO, Board of Directors, Executive Team, Extended Leadership Team, and Staff to schedule the system of meetings and other events used to operate the business, such as quarterly board meetings, quarterly business reviews, quarterly executive offsites, monthly performance reviews, monthly town hall meetings, weekly executive team execution meetings, etc. Impeccable organizational and execution skills: demonstrated ability to proactively anticipate needs, manage complex event logistics (e.g., QBRs, Offsites, Town Halls) and handle the high volume of work with flawless execution across executive support and office operations.

Orange, California30+ days ago

Under the joint supervision of Chief of Trauma, Burns, and Critical Care Services and the Trauma Medical Director and guided by the applicable policies and procedures, the Senior physician assistant will participate in the comprehensive care of patients in the ambulatory or inpatient settings and provide multi-disciplinary care coordination, treatment, education, monitoring, and communication with patients and referring physicians. *Misconduct Disclosure Requirement: As a condition of employment, the final candidate who accepts a conditional offer of employment will be required to disclose if they have been subject to any final administrative or judicial decisions within the last seven years determining that they committed any misconduct; received notice of any allegations or are currently the subject of any administrative or disciplinary proceedings involving misconduct; have left a position after receiving notice of allegations or while under investigation in an administrative or disciplinary proceeding involving misconduct; or have filed an appeal of a finding of misconduct with a previous employer.

Orange, California30+ days ago

The Sr Physician Assistant will respond to Rapid Response activations involving Trauma patients, participate in trauma resuscitations as assigned, perform surgical consultations on potential trauma or acute care surgery patients, and assist with bedside procedures within approved privileges and scope of practice (including chest tube removal, wound VAC changes, complex dressing changes, drain removal, laceration repairs, and tracheostomy downsizing or removal). *Misconduct Disclosure Requirement: As a condition of employment, the final candidate who accepts a conditional offer of employment will be required to disclose if they have been subject to any final administrative or judicial decisions within the last seven years determining that they committed any misconduct; received notice of any allegations or are currently the subject of any administrative or disciplinary proceedings involving misconduct; have left a position after receiving notice of allegations or while under investigation in an administrative or disciplinary proceeding involving misconduct; or have filed an appeal of a finding of misconduct with a previous employer.

New!

Irvine, CA6 days ago

$23–$25 Per Hour
Full-time

Job Overview: The Assistant Association Manager ("AAM") assists the lead manager(s) in overseeing a portfolio of Commercial Property Owner Association “CPOA” accounts to ensure business is executed in a timely and accurate manner in accordance with the Association governing documents, MarWest policies and procedures, and State law. Requesting Information About the AEDT - NYC Local Law 144: Candidates who reside in New York City and are subject to NYC Local Law 144 may request information about the AEDT, including details on the type of data collected, the sources of such data, and our data retention policies.

Newport Beach, CA30+ days ago

$22–$25 Per Hour

Newport Beach, CAAssignment Duration: Ending 12/20 Potential for ExtensionPotential to convert to FTE, If so, what rate: NoResource's typical working day:The purpose of this position is to provide business operations administrative support to a corporate real estate brokerage team. Years of Experience needed: 2+ Years of administrative experience is requiredLevel of Education:H.S DiplomaSystems/Software proficiencies:Intermediate Microsoft Skills.

Norco, CA30+ days ago

Higher Profits: Partners with Restaurant Manager in using management information tools to analyze restaurant operational and financial performance each Period, including I&E, quality and service reports, health inspections, HACCP, etc; identifies trends and consults with management on implementing action plans for improvement; uses data to analyze business results; and contacts regional and CSC resources as Develops and executes action plans to increase restaurant sales and profitability by executing the Service Profit Chain and understanding its impact on the overall business; considers cost/benefit impact of financial decisions and works to protect the JIB brand. Monitors staffing levels to ensure sufficient development and talent; ensures systems for training employees on workstations are fully implemented and adhered to by management and team members; identifies and develops internal candidates for management and Team Leader Works with restaurant team to ensure effective execution of "My Promise to You" and the Service Profit Chain; creates a restaurant environment that friendly, fun, clean, and safe; treats all employees with care and respect; motivates and inspires employees to achieve high performance while adhering to Company procedures; recognizes and rewards employees appropriately.

Riverside, CA11 days ago

Full-time

As an integral member of the litigation and advocacy team, the Housing Legal Assistant ensures accurate case tracking, litigation preparation, and timely client communication while supporting attorneys and paralegals in all aspects of case management. Together, you will collaborate on case strategies, track emerging housing trends, and receive mentorship to strengthen your skills in unlawful detainer defense, foreclosure prevention, habitability claims, subsidized housing advocacy, and tenant outreach.

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Business Assistant Jobs in Riverside, CA

Administrative Assistant II, Distance Education Chaffey College

Administrative Assistant Vaco LLC

HR Assistant Vaco LLC

Electrical Construction Assistant Project Manager Jobot

Jr Construction Field Assistant Lennar Corporation

Tax Administrative Assistant Jobot

Assistant Sales Manager 3V Expansions Inc

Entry Level Assistant Manager SD Premier Consulting, Inc

Home Health Physical Therapy Assistant (PTA) -PTA LICENSE REQUIRED Lifespan Therapy

Assistant Controller Kinetic Personnel Group

Receptionist / Administrative Assistant Kinetic Personnel Group

Medical Assistant - Podiatry - SRS Rancho Bernardo - Full-Time - Day Shift SHARP HEALTHCARE

Medical Assistant - SRS Primary Care - Rancho Bernardo - Full-Time - Day Shift SHARP HEALTHCARE

Legal Assistant The Grey Legal Group, APC

Human Resources Admin Vaco LLC

Executive Assistant Company Confidential

Dealership Business Office Assistant Fletcher Jones Management West

Administrative Assistant- SoCal Communication Technology Services (CTS)

Front Desk Administrative Assistant EKN Engineering

Administrative Assistant - Litigation - Orange County Hawkins Parnell & Young, LLP

Administrative / Office Assistant - On-Site (Irvine) Eggs Unlimited

Executive Administrative Assistant Coury & Buehler Physical Therapy

Distribution Center Administrative Assistant Hot Topic & BoxLunch

Administrative Assistant Iconma

Administrative Assistant/IEWBC (UEC) University Enterprises Corporation at CSUSB

Executive Assistant Staffmark Group

Regional Administrative Assistant PDS Health

Administrative Assistant Rimkus

Office Assistant Vista Business Service

Digital Records Assistant FCG Consultants

Senior Litigation Legal Assistant Jobot

Executive & Personal Assistant to CEO eJam

Business Office Coordinator Sunrise Senior Living

Administrative Assistant American Career College

Production Assistant (Gummy Dept - 1st shift) Robinson Pharma

Bookkeeper Assistant Quality Mobile Home Services

Management Assistant (Purchasing) City of Moreno Valley, CA

Sr. Executive Assistant Alliance Resource Group

Executive Assistant Pacific Health Group

Hospital Physician Assistant - Day and Swing Shift (90%) University of California, Irvine

Hospital Medicine Physician Assistant University of California, Irvine

Hospital Physician Assistant - Night Shift (90%) University of California, Irvine

Executive Assistant, CEO Tebra

Sr Physician Assistant, Trauma (Day Shift) University of California, Irvine

Sr Physician Assistant, Trauma (Swing Shift) University of California, Irvine

Assistant Association Manager FirstService Residential

Administrative Assistant Veterans Sourcing Group

Jack In The Box - ASSISTANT RESTAURANT MANAGER Feast Enterprises

Legal Assistant - Housing Practice Group Inland Counties Legal Services Inc.

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