243 Results for

Administrative Support Jobs in Westchester, CA

Jobs

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.

Irvine, CA7 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.

Alhambra, CA30+ days ago

$20–$30 Per Hour
Full-time
Employee

AHMC provides management services to AHMC Anaheim Regional Medical Center with 223 beds, Garfield Medical Center with 211 beds, Greater El Monte Community Hospital with 115 beds, Monterey Park Hospital with 102 beds, San Gabriel Valley Medical Center with 273 beds, Seton Medical Center with 357 beds, Seton Medical Center Coastside, a 116-bed skilled nursing facility, and Whittier Hospital Medical Center with 172 beds. The Administrative Assistant provides administrative support to the Senior Executive Vice President and the Corporate team in performing diversified administrative functions, which includes the maintenance of confidential records.

New!

Los Angeles, CA2 days ago

$30–$40 Per Year
Full-time
Employee

Demonstrates in-depth knowledge of Microsoft Office and other relevant software and applies it to work assignments, especially Outlook, Word, Excel and PowerPoint. Uses knowledge of the function and manager’s role to independently resolve issues for managers, escalating and redirecting more technical inquiries as appropriate.

New!

Monrovia, CA2 days ago

$24–$27 Per Hour

This role acts as a central point of contact for lab operations, ensuring efficient processing of customer samples and smooth communication across internal teams and external partners. Must be able to perform the essential physical functions of the position, including sitting, standing, walking, stooping, kneeling, andlifting upto 25 pounds, with or without reasonable accommodation.

New!

Los Angeles, CA3 days ago

$25–$27 Per Hour

Support research activities including manuscript submissions, grant support, and presentation preparation. Manage schedules, travel arrangements, invoices, reimbursements, and supply orders.

West Hollywood, CA14 days ago

$29–$29 Per Hour
Temporary
Contractor
Full-time

The Administrative Assistant will support our Supply Chain Department led by three directors and a team of professionals, a critical operational function within our healthcare organization. US Tech Solutions is a global staff augmentation firm providing a wide range of talent on-demand and total workforce solutions.

New!

Los Angeles, CA2 days ago

$21.50–$26 Per Year

Reconcile daily cash sale transaction payments and cash funds in the system, prepare the bank deposit, scan and process checks, prepare and submit required deposit paperwork to the Support Center. Maintain daily files for the Profit Center to include ship tickets, purchase order receivers, deposit back-ups, cash journals, and all daily reconciled reports. .

New!

Glendale, CA4 days ago

$23–$27 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. Providing clinical assistance by performing routine tasks such as taking vitals, preparing patients for examinations, administering medication under the direction of a physician, and maintaining patient records.

New!

Los Angeles, CA3 days ago

$80,000–$110,000 Per Year

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. Over the years our reputation for providing our people with the very best has caught the eye of high-profile clients in business and the entertainment industry who have chosen to use us as their primary firm!

New!

Santa Monica, CA4 days ago

$70,000–$100,000 Per Year

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. Job Details: We are seeking an experienced Executive Assistant to support our CEO in the fast-paced and ever-evolving Legal Tech industry.

New!

Los Angeles, CA4 days ago

$70,000–$125,000 Per Year

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. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and/or its agents and contracted partners.

New!

Los Angeles, CA2 days ago

$41.03–$51.28
Full-time
Employee

This role will deliver value in the following ways: central support resource for the leader and the practice team; an integrator connecting work streams that would otherwise remain siloed; a communicator linking the practice team, clients and the broader organization. Leveraging the firm's travel department while overseeing all aspects of travel planning, logistics, details and execution, to attorney's preferences, aiming to be efficient with the attorney's time during business trips, and keeping client-related components of business trips at the forefront.

Brea, CA7 days ago

$23–$25

Brea, CA7 days ago

$25–$25

Los Angeles, CA7 days ago

$25–$27

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. With that said, as required by local law, Vaco by Highspring believes that the following salary range referenced above reasonably estimates the base compensation for an individual hired into this position in geographies that require salary range disclosure.

New!

Los Angeles, CA4 days ago

$49,000–$52,000 Per Year
Full-time

You will handle day-to-day case administration through our proprietary case management system (PRISM), correspond with parties, attorneys, and neutrals, and ensure accurate scheduling, documentation, and billing processes. The American Arbitration Association (AAA) seeks a detail-oriented and service-driven Case Administrator to manage arbitration and mediation cases across a wide range of industries.

Los Angeles, CA18 days ago

$22–$24 Per Hour

Join a dynamic team in Downtown Los Angeles as an Administrative & Meeting Support Assistant and play a vital part in supporting public meetings and administrative functions within a collaborative environment. As an Administrative & Meeting Support Assistant, you will be responsible for: Providing comprehensive administrative and clerical support across various projects and teams, ensuring all tasks are completed efficiently.

Los Angeles, California8 days ago

The Administrative Support Coordinator provide support for the executive leadership team by managing and supporting their initiatives, operations, daily activities, events, and communications. Energetic and focused personality with a demonstrated ability to take initiative, successfully handle and prioritize multiple competing assignments and effectively manage deadlines.

Los Angeles, CA30+ days ago

Remote

$45,760–$58,240

As a Remote Administrative Support Specialist, you will play a crucial role in providing exceptional administrative support to our gig workers and ensuring a seamless experience on our platform. NoGigiddy, a leading gig staffing platform revolutionizing the industry, is seeking a motivated and detail-oriented Remote Administrative Support Specialist to join our dynamic team.

New!

El Segundo, CA3 days ago

This includes but is not limited to conducting research, preparing statistical reports, handling information requests, coordinating personnel and appraisal records, mail distribution, office support services, managing executive schedules, planning government travel from initial booking to reimbursement voucher Page 12 of 26 Space Domain Awareness & Combat Power (SDACP) Hemisphere PWS FA8819-24-R-B002 completion (i.e., Defense Travel System), coordinating staff activities, arranging meetings, events, and conventions, and performing other clerical functions. Tasks can include but are not limited to reviewing and coordinating performance reports, ensuring documents are in compliance with Space Systems Command, Space Force, Air Force, and DoD policy, laws, and regulations, facilitating interfaces with critical internal and external acquisition organizations, ensuring completeness and quality of acquisition and requirements-related documents, and monitoring front office tasks.

Los Angeles, CA30+ days ago

$65,000–$85,000 Per Year

Arrowhead is leading the field in bringing the promise of RNAi to address diseases outside of the liver, and our clinical pipeline includes disease targets in the liver and lung with a promising pipeline of preclinical candidates. Travel & Congress Management: Coordinate and manage domestic and international travel arrangements for various congresses, including flights, accommodations and event logistics, ensuring a smooth and efficient experience.

Costa Mesa, CA30+ days ago

$55,000–$65,000 Per Year

It’s a feat that wouldn’t be possible without our team, a diverse group of creative visionaries and innovative experts who are relentless in pursuit of one goal: to ensure our buildings don’t simply meet the needs of our tenants, residents, and communities — but exceed them, every day. As part of Brookfield — one of the largest alternative asset managers in the world — we harness our resources to bring a fresh approach, unparalleled creativity, relentless innovation, and sound Sustainability practices to the planning, development, and management of buildings everywhere.

Los Angeles, California30+ days ago

$69,500–$100,800 Per Year

The firm has approximately 2,500 lawyers and professionals serving clients in major centers of business, finance, technology, and government in Boston, Chicago, Dublin, Hong Kong, London, Los Angeles, Milan, New York, Paris, San Francisco, Seoul, Shanghai, Silicon Valley, Singapore, Tokyo and Washington, D.C. The firm has consistently been recognized for its leading practices in many areas, including asset management, private equity, M&A, finance, real estate, tax, antitrust, life sciences, health care, intellectual property, litigation & enforcement, privacy & cybersecurity, and business restructuring. The Legal Administrative Assistant will coordinate travel arrangements, including booking flights, hotels, and ground transportation, and will process invoices and expense reports, reviewing submissions for accuracy, ensuring correct coding, and resolving discrepancies in a timely manner.

Pasadena, California18 days ago

$22–$30 Per Hour

We are seeking a detail-oriented Administrative Assistant / Collections Coordinator to support our office operations and accounts receivable process. This role requires prior experience in restoration or construction, as well as strong organizational, communication, and follow-up skills.

Costa Mesa, California28 days ago

$24–$26 Per Hour

Convenient location in the vibrant city of Costa Mesa with easy access to dining for lunch. -Maintain office supplies inventory and ensure proper functioning of office equipment.

Costa Mesa, California17 days ago

$33–$34 Per Hour

Design and produce high-quality digital and print marketing materials (presentations, brochures, tradeshow assets, product packaging, and web content). This combination role will be responsible for providing high-level executive support while leading the development and execution of marketing and creative initiatives.

Northridge, CA30+ days ago

$25–$32 Per Hour

The Administrative Assistant interacts with the general public, merchants, tenants, in-house facilities technicians, third-party contractors including housekeeping and security, and other persons servicing the mall, its merchants and tenants. + Supports the day-to-day management of the mall including general office work such as file organization, fulfilling written requests, answering phones, greeting guests, word processing, distributing mail, purchasing and replenishing supplies.

Long Beach, CA30+ days ago

Under the responsibility of the Chief of Projects & Construction Management or the Chief of Planning, Major Projects and Activations and Program Management, the Administrative Assistant will perform administrative functions that may include human resources, administration, management, budgetary financial and program analysis, office support services, document control, procurement and logistics, contract management, and a variety of other related administrative matters in support of the Projects & Construction Management Section or Planning and Program Management Major Projects and Activations. Positions will be assigned to specific sections within the department, including Capital Development, Projects & Construction, Business Management, and Maintenance & Operations, and report to the respective Section Supervisor in support of medical center tasks.

Glendale, California20 days ago

$22–$27 Per Hour

This temporary role is primarily administrative and requires strong organizational skills, attention to detail, and prior experience within the finance or banking industry, preferably in collections or recovery. The Credit & Collection Administrative Assistant will support the credit and collections team within a large banking environment.

New!

Cypress, CA4 days ago

$25–$28 Per Hour

The Administrative Assistant provides high-level administrative and operational support to senior leadership, including executives and board members. We provide billing, staffing, credentialing, marketing, systems, accounting and purchasing services to over 300 physicians in the L.A. and Orange County.

Costa Mesa, CA18 days ago

$32.69–$33.65 Per Hour

As a Senior Administrative Assistant, you'll play a vital role in supporting top-level leadership teams, including the President, Vice Presidents, and Business Development teams. Your advanced organizational skills, mastery of Microsoft Office, and ability to manage multiple priorities will ensure smooth operations and professional execution across various functions.

El Segundo, California9 days ago

$80,000–$110,000 Per Year

Provide comprehensive administrative support, including creating reports and briefings, reviewing staff packages, answering phones, managing conference rooms, scheduling meetings, supporting in/out-processing, managing mail, updating recall rosters, and tracking personnel actions. This Task Order (TO) provides the MilComm & PNT Directorate with a broad range of acquisition capabilities to execute effective and responsive integrated program management of space-related research, development, production, operations and maintenance, and lifecycle acquisition activities.

Sun Valley, California30+ days ago

$28–$35

From its roots in the early stages of the plastics polymer modification industry a half century ago, PMC has branched out through start-ups and strategic acquisitions to dominate select markets in plastics/chemicals, manufacturing, food service, packaging and finance. About PMC Global, Inc:PMC Global, Inc. is a privately-held management company and resource partner with corporate offices in three states and more than 20 subsidiaries in 10 U.S. states and 17 countries.

Costa Mesa, CA16 days ago

As an Administrative Assistant at High Seas, you will play a crucial role in supporting the General Manager and ensuring effective communication and system management within our dynamic environment. We are seeking a motivated Administrative Assistant to support our General Manager in ongoing business operations and ensure smooth daily operations at our vibrant dispensary.

New!

Irvine, CA4 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.

New!

Santa Ana, CA4 days ago

Screen mail and callers, respond to and route inquiries to appropriate personnel as necessary; determine the importance and priority of various issues and determine what major issues should be brought to the attention of the department head and/or department members. Provide advanced assistance to departments by performing various administrative support functions, including but not limited to, analytical and specialized administrative duties to ensure efficient office operations.

Los Angeles, CA30+ days ago

$21–$22 Per Hour

You'll work closely with management and various departments to facilitate communication and office workflows, helping the team succeed and grow. As an Administrative Assistant, you will be responsible for: Screen incoming phone calls and direct them to the appropriate personnel or departments to ensure smooth communication flow.

Los Angeles, CA30+ days ago

We are seeking a highly organized and proactive Administrative Assistant | Office Manager to support management team and small office. Responsibilities include: Coordinate schedules, meetings, and travel; screen calls and provide general administrative support to leadership.

Newport Beach, CA30+ days ago

Resource's typical working day: The purpose of this position is to provide business operations administrative support to a corporate real estate brokerage team. May perform administrative duties specific to department such as, conducting research, updating databases, and preparing collateral materials for mass mailings.

Los Angeles, CA30+ days ago

$70,000–$85,000 Per Year

Our founding charter commits the firm to “allow and encourage each individual within it to be a full person,” and we strive to offer an exceptional professional environment, intellectually challenging and engaging work in multiple disciplines, competitive compensation and benefits, opportunities for training and career development. Arrange travel and handle expense reports for attorneys, enter lawyers’ expenses for submission to Accounting through internal billing software.

Los Angeles, California15 days ago

$35.50–$41.38 Per Hour

Uses knowledge of the function and manager's role to independently resolve issues for managers, escalating and redirecting more technical inquiries as appropriate. - Manages incoming and outgoing mail and correspondence (post, email, etc.); handles routine issues directly and prioritizes remainder.

New!

Santa Ana, CA6 days ago

$20–$25 Per Hour

This is an excellent opportunity for someone with strong administrative and customer service skills who enjoys working in a fast-paced office environment. The ideal candidate will be highly organized, professional on the phone, and capable of managing multiple administrative tasks efficiently.

Los Angeles, CA30+ days ago

$23–$30 Per Hour

This role is critical to ensuring smooth day-to-day administrative functions, with a strong emphasis on advanced Microsoft Office skills, communication, and coordination. We strive to achieve excellence in job placement, staffing, and recruiting services, while treating candidates with the professionalism and respect they deserve.

Universal City, California30+ days ago

Prepares and processes P-card and expense reports in accordance with established divisional travel policy guidelines; Ensures the timely processing of expenses utilizing the latest electronic processes for payment to corporate credit card. Summary: The Administrative Assistant is responsible for managing schedules, coordinating meetings and handling travel arrangements for an SVP in Brand Marketing.

New!

Duarte, CA3 days ago

Must have exceptional communication skills (written and verbal) as well as excellent organization skills.- 5-10 years of experience in the above category- MUST have experience working with physicians in admin capacity. Responsibilities also include preparation and reconciliation of business expense reports, along with day-to-day administrative partnership to ensure efficient workflow, responsiveness, and continuity of operations.

Irvine, California24 days ago

$26–$28 Per Hour

Prepare and manage international and domestic travel arrangements, meetings, appointments, and travel expense reports for the Vice President, Marketing. Coordinate Marketing team as needed with logistics for team meetings, event planning, and vehicle event planning and auto show registrations.

Santa Fe Springs, California23 days ago

$27–$37 Per Hour

Various voluntary plans are available, including short- and long-term disability, supplemental vision, accident, hospital and critical illness, and additional voluntary life insurance plans for employees and dependents. Our services include electrical construction, technology solutions, and alternative energy where CSI Electric is regarded as a premier provider of energy development, installation, and maintenance.

Costa Mesa, California30+ days ago

$25–$28 Per Hour

Position Overview: Ultimate Staffing Services is actively seeking a friendly and organized Receptionist/Administrative Assistant to join their client's team in Irvine. This role is essential for ensuring smooth daily operations and providing exceptional service to both internal and external stakeholders.

Los Angeles, California8 days ago

The ideal candidate has strong organizational skills, experience with invoicing and accounts, and is comfortable working near the office location on a consistent schedule. This role is critical to keeping administrative workflows running smoothly and supporting the broader team.

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Administrative Support Jobs in Westchester, CA

Jobs

Tax Administrative AssistantJobot

Administrative AssistantVaco LLC

Administrative AssistantAHMC Healthcare Inc

Administrative AssistantWinCorp Solutions

Administrative CoordinatorPEAK Technical Staffing

Administrative AssistantProKatchers

Administrative AssistantUS Tech Solutions, Inc.

Sr Profit Center Office AdministratorHajoca Corporation

Medical Assistant (Primary Care, Oncology, OB/GYN, Women's Health)Jobot

Litigation Legal Assistant / Legal Secretary (No Family Law Experience required)Jobot

Executive AssistantJobot

Litigation Legal AssistantJobot

Executive AssistantReed Smith LLP

Human Resources AdminVaco LLC

HR AssistantVaco LLC

Recruiting AdminVaco LLC

Case Administrator (Legal Services/Administrative Support)American Arbitration Association Inc.

Administrative & Meeting Support Assistant- Government background helpful 836598Helpmates

Administrative Support CoordinatorAllied Universal

Remote Administrative Support Specialist - No Degree RequiredNoGigiddy

Administrative Support Services - Secret ClearanceSolutions Through Innovative Technologies, Inc

Specialist, Administrative SupportArrowhead Pharmaceuticals

Insurance Administrative SupportBrookfield Properties

Legal Administrative AssistantRopes & Gray

Administrative Assistant / CollectionsUltimate Staffing Services

Administrative AssistantUltimate Staffing Services

Senior Administrative AssistantUltimate Staffing Services

Administrative AssistantBrookfield Properties

Administrative AssistantTerrestris Global Solutions

Credit & Collections Administrative AssistantUltimate Staffing Services

Administrative AssistantArgus Medical Management, LLC

Sr. Administrative Assistant 836603Helpmates

Executive Administrative AssistantApogee Engineering, LLC

Administrative Assistant (Insurance and/or Legal Experience)PMC Global, Inc

Administrative AssistantHigh Seas

Administrative AssistantRimkus

Office Administrative AssistantMission Landscape Companies, Inc

Administrative Assistant- Government background helpful 836059Helpmates

Administrative Assistant | Office Manager for a stable family oriented companyVertical Careers, Inc.

Administrative/Operations - Administrative AssistantVeterans Sourcing Group

Legal Administrative AssistantKutak Rock LLP

Administrative Assistant IIIRoth Staffing Companies

Administrative Assistant - TalentZokTalentZok

Administrative Assistant IIIConnexion Systems + Engineering

Administrative Assistant - Brand MarketingTricon Solutions

Administrative Assistant IIIMedNational Staffing

Senior Administrative Assistant to Marketing departmentUltimate Staffing Services

Safety Administrative AssistantCSI Electrical Contractors

Receptionist/Administrative AssistantUltimate Staffing Services

Administrative AssistantThe Employee Connect

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