713 administrative assistant jobs at 379 companies in Winchester, CA
1mo
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Administrative Assistant
Anaheim, California, United States
OnsiteFull Time
Organized administrative professional with project management and contract administration skills; experience with AR/AP, DMV/title paperwork, technical writing, and proficiency with Microsoft Office, CRM and ERP; clean driving record.
Microsoft Office, CRM, ERP
1mo
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Administrative Assistant
Newport Beach, California, United States
$55k-$83k/yr OnsiteFull Time
0+ YOEEntry-level administrative support with basic office procedures, PC and typing skills, good oral and written communication. No prior experience required; ability to handle confidential information and routine administrative tasks.
3mo
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Administrative Assistant
Brea, California, United States
$19-$24/hr OnsiteFull Time
Administrative tasks, scheduling, data entry, documentation, and on-site tastings support.
1w
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Administrative Assistant
Rancho Cucamonga, California, United States
$20-$24/hr OnsiteFull Time
Provide administrative support to a mental health team, organize patient charts and electronic files, schedule appointments, compose correspondence, and communicate with stakeholders.
Microsoft Word, Microsoft Excel, Microsoft Outlook
1w
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Administrative Assistant
Bakersfield or Brentwood or Beverly Hills or Clovis or Chino or Chino Hills or Costa Mesa or Downtown Los Angeles or Fresno or Fullerton or Hemet or Huntington Park or Lake Elsinore or Lakewood or Mission Viejo or North Hollywood or Riverside or Santa Ana or Upland or Torrance
OnsiteFull Time
Perform office administrative tasks including phone screening, scheduling and calendar management, preparing meeting documents, filing, mail handling, and maintaining office supplies.
2d
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Administrative Assistant
Rancho Cucamonga, California, United States
$18-$24/hr OnsiteFull Time
Administrative, purchasing, or construction data-entry experience preferred; Microsoft Office proficiency, 40 WPM typing, proofreading, auditing, detail orientation, and professional communication required.
Microsoft Office, Microsoft Outlook, Microsoft Word, Microsoft Excel
1w
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Administrative Assistant
Rancho Cucamonga, California, United States
$26-$31/hr HybridFull Time
4+ YOEHigh school diploma or equivalent and 4+ years of administrative or office support experience required. Requires strong organization, communication, customer service, multitasking, and Microsoft Office proficiency.
Microsoft Outlook, Microsoft Word, Microsoft Excel, Microsoft Teams
2d
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ADMINISTRATIVE ASSISTANT
Running Springs, California, United States
$57k-$66k/yr OnsiteFull Time
2+ YOEHigh school diploma or GED and two years of administrative support experience, or equivalent education, training, and experience. Requires office, financial, records, computer, and customer service skills.
databases, spreadsheets, word processing
3d
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Administrative Assistant
Placentia, California, United States
$24-$25/hr OnsiteFull Time
2+ YOERequires 2+ years of administrative or office experience, Microsoft Office proficiency, strong organization, communication, writing, computer, multitasking, and attention-to-detail skills; property management experience preferred.
Microsoft Office, Microsoft Word, Microsoft Excel, G-Suite
1mo
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Administrative Assistant
Santa Ana, California, United States
$26-$29/hr OnsiteFull Time
3+ YOEAssociate degree or equivalent, 3+ years administrative support experience, strong Microsoft Office proficiency, valid CA driver's license, excellent written/verbal communication, board and executive support experience.
Microsoft Office
1mo
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Administrative Assistant
Rancho Cucamonga, California, United States
$20-$24/hr OnsiteFull Time
High school diploma or equivalent, experience in administrative/clerical roles, MS Office proficiency, strong oral and written communication, ability to manage front desk, schedule meetings, coordinate travel and maintain confidential records.
Microsoft Office
1w
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Administrative Assistant
Camp Pendleton, California, United States
OnsiteFull Time
1+ YOEProvide administrative support using ETMS2, Defense Travel System (DTS), Marine-On-Line (MOL), Microsoft SharePoint; coordinate conferences, manage correspondence, calendars, and office records; must obtain and retain Secret clearance.
Enterprise Task Knowledge Management Software Solution (ETMS2), Defense Travel System (DTS), Marine-On-Line (MOL), Microsoft SharePoint
2w
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Administrative Assistant
Brea, California, United States
$18-$21/hr OnsiteFull Time
Front-desk and administrative duties; Microsoft Office proficiency; valid driver\u0002s license, auto insurance and reliable car; negative TB test and ability to clear FBI & DOJ fingerprinting; BA/BS preferred.
Microsoft Word, Microsoft Excel, Microsoft Outlook
2mo
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Administrative Assistant
Loma Linda, California, United States
$23-$30/hr OnsiteFull Time
3+ YOEAssociate's degree or two years college (or equivalent experience), minimum 3 years clerical/administrative experience, valid driver’s license, proficiency with Microsoft Word/Excel/Outlook/PowerPoint/Access, medical terminology preferred.
Microsoft Word, Microsoft Excel, Microsoft Outlook, Microsoft PowerPoint, Microsoft Access
2w
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Administrative Assistant
Escondido, California, United States
$25-$30/hr OnsiteFull Time
1+ YOEHigh school diploma/GED, type 60 WPM, Microsoft Office proficiency, medical secretary or secretarial certification preferred, 1+ year administrative experience in medical setting preferred, may require COVID-19 vaccination.
Microsoft Office, StarLearning, Headspace
3w
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RECEPTIONIST/ADMINISTRATIVE ASSISTANT
Costa Mesa, California, United States
OnsiteFull Time
Perform receptionist and administrative support duties including clerical tasks, managing communications, assisting with class registrations, and collecting/recording registration fees.
2w
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Fire Administrative Assistant
Valley Center, California, United States
$20-$22/hr OnsitePart Time
2+ YOEPerforms clerical and administrative tasks including records management, document preparation, grant and invoice processing; requires high school/GED, 2+ years administrative experience, confidentiality, and valid California driver license.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Adobe Acrobat Pro, Intacct, Gronk, AI-powered productivity tools
5d
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Administrative Assistant I
Ontario, California, United States
$23-$30/hr OnsiteFull Time
1+ YOEHigh school diploma or equivalent required; at least one year of administrative experience preferred. Construction or concrete industry experience preferred, with accurate data entry and spreadsheet skills.
Microsoft Excel
4d
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Administrative Assistant I
Escondido, California, United States
$19-$21/hr OnsiteFull Time
0+ YOEHigh school diploma or equivalent, 0-2 years of administrative experience, Microsoft Office proficiency, strong organization and communication skills, confidentiality, and ability to work independently and collaboratively.
Microsoft Office Suite, Microsoft Word, Microsoft Excel, Microsoft Outlook, Microsoft PowerPoint
5d
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Senior Administrative Assistant
Irvine, California, United States
$30-$54/hr OnsiteFull Time
10+ YOERequires 10–12+ years of administrative experience, advanced Microsoft Office skills, complex travel and expense coordination, strong communication, organization, judgment, and independent priority management.
Microsoft Outlook, Microsoft PowerPoint, Microsoft Excel, Microsoft Word
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