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44 admin assistant jobs at 28 companies in Murrieta, CA

2mo
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Office Admin Assistant I
Vista, California, United States
$19-$25/hr OnsiteFull Time
Dyad Law P.C.
Dyad Law P.C.: Immigration law support services provided by a law firm.
1+ YOEBilingual English and Spanish; Associate's degree or 1–3 years admin/clerical experience; strong organizational, communication, and tech skills.
Microsoft Office, Case Management System
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2d
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Admin Assistant - Clinical Research
Anaheim, California, United States
$20-$22/hr OnsiteFull Time
CenExel Clinical Research
CenExel Clinical Research: Operates a nationwide network of clinical trial research sites.
High school diploma/GED, strong interpersonal and communication skills, self-motivated, able to complete training and follow protocols, assist with audits and documentation.
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3mo
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*TEST* Admin Assistant
Irvine, California, United States
$20-$25/hr OnsiteFull Time
Serenity Mental Health Centers
Serenity Mental Health Centers: Provider of comprehensive outpatient psychiatric and mental health services.
1+ YOENo explicit requirements listed in the posting.
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2d
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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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4d
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Admin Assistant
Eastvale, California, United States
$22/hr HybridFull Time
ServiceMaster by Crane IFS
ServiceMaster by Crane IFS: Provides professional commercial janitorial and facility cleaning services.
Perform onboarding/offboarding, background checks, offer letters, timekeeping, training compliance, record maintenance, and candidate screening; hybrid role with strong Microsoft Teams and administrative skills.
Microsoft Teams
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2d
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Admin Assistant - Clinical Research
Anaheim, California, United States
$20-$22/hr OnsiteFull Time
CenExel
CenExel: Operates a nationwide network of clinical research sites.
High school diploma or GED, strong interpersonal skills, self-motivated, able to complete required study coordinator training and follow protocols, able to perform light physical tasks.
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6d
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Admin Assistant III - Hematology/Oncology
Orange, California, United States
$29-$42/hr OnsiteFull Time
University of California, Irvine
University of California, Irvine: Public research university offering higher education and academic degrees.
1+ YOEProvide administrative support including reimbursements, purchasing, scheduling, onboarding/offboarding, and academic personnel coordination; bachelor\u0002s degree or related experience; 1+ year administrative experience; Microsoft Office and EPIC proficiency.
Microsoft Word, Microsoft Excel, Microsoft Outlook, Microsoft PowerPoint, EPIC
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2mo
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Department of CIO Admin Office - Graduate Assistant (GA) Pool
San Bernardino, California, United States
$3k-$6k/mo OnsiteTemporary, Part Time
California State University
California State University: Public university system providing higher education and academic research.
Graduate student enrollment; 3.0 GPA min; 5-20 hours/week; ability to work with faculty and students.
GPU, Containerization, CI/CD, Python, Docker
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2mo
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Quality Assistant
Poway, California, United States
$63k-$89k/yr OnsiteFull Time, Part Time
TMS Titanium
TMS Titanium: A quality-focused metal delivering service and precision.
Detail-oriented admin support with knowledge of ISO 9001/AS9100, strong communication, and ability to multi-task in fast-paced environment.
QuickBooks, Outlook, AR/AP, Data Entry
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2mo
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Legal Assistant
Costa Mesa, California, United States
HybridFull Time
HR MGMT 10
HR MGMT 10: Provides employer of record and human resources support services.
2+ YOEHigh school diploma required; 1-3 years legal admin experience; familiarity with CA procedures; MS Office; strong writing and communication; detail oriented.
Microsoft Office Suite, Legal practice software (e.g., Clio, MyCase)
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1mo
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Administrative Assistant (Bilingual in Mandarin)
Buford or Fontana
$18-$20/hr OnsiteFull Time
YQN Logistics
YQN Logistics: Digital logistics platform for international shipping and supply chain.
Bilingual English/Mandarin admin support for warehouse operations; 1+ year admin or warehouse experience preferred; Microsoft Office skills; WMS/ERP experience a plus; strong organization and communication.
Microsoft Excel, Microsoft Word, Microsoft Outlook, Warehouse Management Systems (WMS), ERP
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1w
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Development Department Assistant
Huntington Beach, California, United States
$53k/yr OnsiteFull Time
Hebrew Academy Community Day School
Hebrew Academy Community Day School: Private school providing secular and Jewish K-12 education.
1+ YOESupports fundraising and donor engagement with admin tasks, donor records, event coordination, Google Suite proficiency, 1+ years nonprofit or administrative experience.
Google Suite, QuickBooks
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1mo
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Administrative Assistant
Anaheim, California, United States
$19-$26/hr OnsiteFull Time
West Coast University
West Coast University: Private university offering degree programs for healthcare professionals.
1+ YOEPerform complex administrative support including drafting correspondence, scheduling meetings, coordinating events and travel, processing expense reports in Concur/Excel, and maintaining records; 1+ year admin experience; HS required; Associates preferred.
Concur, Microsoft Excel, Microsoft Office
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3mo
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Executive Assistant I, Rail Operations
Orange, California, United States
OnsiteFull Time
Orange County Transportation Authority
Orange County Transportation Authority: Operates public transportation and manages infrastructure for Orange County.
6+ YOEHigh school diploma; at least six years' admin or executive secretarial experience; strong organization; discretion; excellent communication.
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1w
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Administrative & Finance Assistant
Santa Ana, California, United States
$27-$30/hr OnsitePart Time
OneOC
OneOC: Provides fiscal sponsorship and back-office support for nonprofits.
2+ YOE2+ years admin or bookkeeping experience, bilingual English/Spanish, QuickBooks Online and Microsoft Office proficiency, cash handling, payroll and AR/AP support, strong communication and confidentiality.
QuickBooks Online, Microsoft Excel, Microsoft Outlook, Microsoft Word
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1w
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Preschool Assistant Principal
San Diego, California, United States
$25-$29/hr OnsiteFull Time
Spring Education Group
Spring Education Group: Operates a national network of private preschools and academies.
4+ YOEHigh school diploma/GED, 12 core ECE units including 3 Infant/Toddler units, 3 admin/staff-relations units, minimum 4 years licensed childcare teaching experience, strong communication and organizational skills, US work authorization required.
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3d
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Assistant Director - Santa Ana
Santa Ana, California, United States
$21-$25/hr OnsiteFull Time
YMCA of Orange County
YMCA of Orange County: Operates community centers providing childcare, fitness, and youth programs.
Experience working with children (ages 5-12),12 college units including child development and related fields plus admin units or enrollment,CPR and First Aid,ability to mentor staff and enforce safety/licensing standards.
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2w
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Business Office Assistant
Laguna Hills, California, United States
$25-$26/hr OnsiteFull Time
Meridian at Laguna Hills
Meridian at Laguna Hills: A senior living community providing independent and assisted living services.
Customer-service experience preferred, bilingual candidates preferred, high school diploma required; duties include concierge tasks, A/R, A/P, payroll time edits, HR paperwork, marketing/admin support, and background/drug screening.
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2mo
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Front Office Medical Assistant
Corona, California, United States
$21-$25/hr OnsiteFull Time
Argus Medical Management
Argus Medical Management: Provides administrative and operational management services for physician practices.
2+ YOETwo years in front office/medical admin; rheumatology preferred; bilingual Spanish required; experience with insurance eligibility, prior authorizations, referrals; strong organization and customer service.
Electronic Health Record (EHR), Insurance verification software
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1mo
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Administrative Assistant to the Chief Executive Officer (Hourly)
Santa Ana, California, United States
$21-$25/hr OnsiteFull Time
Orange County Council, Boy Scouts of America
Orange County Council, Boy Scouts of America: Provides character development and leadership training for youth.
2+ YOEHigh school diploma or equivalent; 2+ years admin or executive support; strong organizational and communication skills; proficient with MS Office or Google Workspace; able to manage multiple priorities.
Microsoft Office, Google Workspace
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