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85 admin assistant jobs at 55 companies in Mission Viejo, CA

2w
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Admin Assistant Intern
Huntington Beach, California, United States
$18/hr OnsiteInternship, Part Time
CareWorks Health Services
CareWorks Health Services: Provides in-home senior care and skilled nursing services.
Pursuing a degree in social work or related field, dependable, organized, basic technical skills for downloading/printing, comfortable handling sensitive information; on-site availability ~4 hrs/week.
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3mo
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Admin Assistant (Southern California)
Los Angeles, California, United States
$20/hr HybridFull Time
ServiceMaster by Crane IFS
ServiceMaster by Crane IFS: Provides professional commercial janitorial and facility cleaning services.
Supports onboarding/offboarding, records, training compliance, timekeeping; hybrid role with on-site majority.
Microsoft Teams, HR systems
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3w
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Student GCI Admin Assistant
Orange, California, United States
$17/hr OnsitePart Time
Chapman University
Chapman University: A private university offering undergraduate and graduate degree programs.
Minimal prior experience required; familiarity with Microsoft Office Suite; ability to learn support processes; flexible availability for events; basic problem-solving and communication skills.
Microsoft Office Suite
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2w
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People & Culture Admin Assistant
Los Angeles, California, United States
$20-$25/hr HybridFull Time
Cater2.me
Cater2.me: Managed corporate catering services from local food vendors.
Provide People & Culture and office administrative support, excellent communication, Google Suite proficiency, vendor coordination, confidentiality, multitasking in a hybrid office setting (3 days/week onsite).
Gmail, Google Docs, Google Sheets, Google Calendar
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1w
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Public Works Admin Assistant
San Jacinto, California, United States
OnsiteFull Time
Soboba Band of Luiseño Indians
Soboba Band of Luiseño Indians: Provides government and public safety services to tribal members.
3+ YOEProvide clerical support including answering phones, data entry, processing invoices and purchase orders, maintaining logs, and coordinating meetings; high school diploma and 3 years administrative experience required.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint
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1mo
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Admin Logistics Assistant
City of Industry, California, United States
$20-$22/hr OnsiteFull Time
Bentley Mills
Bentley MillsEuronext Brussels: BELYS: Manufactures and designs commercial carpeting and flooring products.
3+ YOE3 years shipping experience, forklift experience, international shipping knowledge, intermediate-to-advanced math, Excel and Monarch proficiency, strong English communication, ability to work overtime including weekends.
Microsoft Excel, monarch
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1w
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Sr. Admin Assistant
City of Industry or La Jolla or Newport Beach
$46k-$76k/yr FieldFull Time
BMO
BMOTSX: BMO: Provides personal and commercial banking, investment, and wealth services.
3+ YOERequires 3–5 years of administrative or professional support experience; a related post-secondary degree is desirable. Strong communication, organization, collaboration, analytical, and problem-solving skills required.
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1w
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Office Assistant (Admin)
Pasadena, California, United States
$23/hr OnsiteFull Time
Retirement Housing Foundation
Retirement Housing Foundation: Operates affordable housing communities and provides senior living services.
2+ YOEHigh school diploma or equivalent and 2 years of administrative experience required. Requires Microsoft Office proficiency, communication, organization, confidentiality, and customer service skills.
Microsoft Office Suite, Microsoft Word, Microsoft Excel, Microsoft Outlook, Yardi, RealPage
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2d
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Laboratory Admin Assistant
San Juan Capistrano, California, United States
$20-$26/hr OnsiteFull Time
Quest Diagnostics
Quest DiagnosticsNYSE: DGX: Provides clinical laboratory diagnostic testing and health information services.
1+ YOERequires 1–3 years of office or laboratory experience, high school diploma or equivalent, computer skills, 35+ wpm typing, advanced Excel, organization, and professional telephone skills.
Microsoft Office Suite, Microsoft Excel, SJC LIS
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1mo
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Center Based Admin Assistant
Inglewood, California, United States
$20-$23/hr OnsiteFull Time
360 Behavioral Health
360 Behavioral Health: Provides Applied Behavior Analysis therapy for individuals with autism.
High school diploma/GED required. Bilingual preferred. Administrative or customer service experience preferred. Comfortable with Microsoft Office (Word, Excel, Outlook); strong communication and organizational skills.
Microsoft Word, Microsoft Excel, Microsoft Outlook
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1w
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Research Admin Assistant - Clinical Research
Los Alamitos, California, United States
$20-$22/hr OnsiteFull Time
CenExel
CenExel: Operates a nationwide network of clinical research sites.
High school diploma or GED, excellent interpersonal skills, self-motivation, ability to work independently, professional presentation, and completion of study coordinator training requirements.
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1w
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Reception/ Admin Assistant
Los Angeles, California, United States
$20-$26/hr OnsiteFull Time
Howard Building Corporation
Howard Building Corporation: General contractor providing commercial interior tenant improvement services.
2+ YOE2 years reception or administrative experience, high school diploma or equivalent, professional appearance, Microsoft Office and Adobe proficiency, strong written and verbal communication, comfortable with office equipment.
Microsoft Excel, Outlook, Microsoft Word, Adobe
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1w
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Property Accounting Assistant / Accounting Admin Clerk
La Mirada, California, United States
$25-$28/hr OnsiteFull Time
Skin and Cancer Institute
Skin and Cancer Institute: Dermatology and skin cancer treatment medical practice.
Entry-level accounting role requiring accounting coursework or current enrollment/recent graduation, with internship, bookkeeping, or administrative experience preferred and interest in real estate finance.
Microsoft Excel
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1mo
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Admin Assistant - TEMP (Cypress, CA, US, 90630)
Cypress, California, United States
$23-$32/hr HybridPart Time, Temporary
Exemplis
Exemplis: Manufactures customizable office seating and consumer lifestyle products.
2+ YOE2+ years administrative/operations or accounting support experience; strong attention to detail, organization, cross-functional communication; proficient in Microsoft Office Suite; experience with OnBase and Concur preferred; familiarity with ERP systems.
Microsoft Office Suite, OnBase, Concur, Nutrient, ERP, Amazon, Instacart
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Intermarket Coordinator | Admin Assistant
Cypress, California, United States
$28-$32/hr OnsiteFull Time
PeopleSpace
PeopleSpace: Providing workspace strategy and commercial office furniture solutions.
Coordinate multi-location furniture installations, prepare labor quotes and paperwork, maintain job folders, communicate with stakeholders, and resolve project issues.
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3d
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Theatre Arts Student Financial Admin. Assistant 26/27
La Verne, California, United States
OnsitePart Time
University of La Verne
University of La Verne: Private non-profit university offering undergraduate and graduate degrees.
Must be enrolled in a University of La Verne graduate program and demonstrate familiarity with theatre publicity tools or techniques. Theatre production, graphics, writing, and video experience preferred.
Eventbrite
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3mo
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Administrative Assistant (Pasadena Studios)
Los Angeles, California, United States
$24/hr OnsiteTemporary
WinnCompanies
WinnCompanies: Develops and manages affordable and mixed-income residential communities.
0+ YOETemporary per diem admin assistant; 0-1 year experience; MS Office; front desk and residents support; strong organization; good communication.
Microsoft Office, OrgPlus 4.0
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2w
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Sales Admin Asst
Commerce, California, United States
$20-$22/hr OnsiteFull Time
TPG Hotels & Resorts
TPG Hotels & Resorts: Manages and operates a national portfolio of hospitality assets.
High school diploma, prior sales or hospitality experience preferred, proficiency with Microsoft Office Suite and Marriott CI/TY, strong communication and organizational skills.
Microsoft Office Suite, Marriott CI/TY
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2w
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Program Assistant - Recycling
Escondido, California, United States
$55k-$73k/yr OnsiteFull Time
City of Escondido
City of Escondido: Providing municipal governance and public services to Escondido residents.
1+ YOEProvide administrative and technical support for recycling and waste-reduction programs; conduct research, prepare reports, assist with outreach, grants, and budget tracking; must have HS diploma and 1 year admin/program experience.
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2mo
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Registered Dental Assistant Saturday Only
Commerce, California, United States
OnsiteFull Time
Family Health Care Centers of Greater Los Angeles
Family Health Care Centers of Greater Los Angeles: Non-profit community health center providing comprehensive medical care.
1+ YOERegistered Dental Assistant with CPR, 1+ year experience; RDA certification; proficient in digital radiographs, patient care, and admin duties.
Digital radiography, NextGen EHR, Microsoft Word, Excel
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