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52 business support assistant jobs at 42 companies in Oceanside, CA

1mo
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Business Office Assistant
La Jolla, California, United States
OnsitePart Time
Links Healthcare Group
Links Healthcare Group: Operates and manages skilled nursing and rehabilitation healthcare facilities
Assist Business Office Manager with billing and claims, maintain health information security and records, manage release of information, support admissions and discharge documentation, and ensure regulatory compliance.
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2w
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Assistant Business Manager
Santa Ana, California, United States
$20-$23/hr OnsiteFull Time
Legacy Partners
Legacy Partners: Develops and manages multifamily residential communities across the United States.
Support business manager in leasing, administration, rent collection, maintenance coordination, inspections, and staff supervision; strong bookkeeping and compliance skills required.
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3w
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Business Office Assistant
Poway, California, United States
$22-$26/hr OnsiteFull Time
PACS
PACSNYSE: PACS: Operates skilled nursing and post-acute healthcare facilities nationwide.
High school diploma/GED, clerical and computer literacy, Microsoft Excel proficiency preferred, typing 40 WPM, ability to lift up to 25 lbs, maintain confidentiality of PHI, perform clerical and basic accounting tasks.
Microsoft Excel
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3d
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Administrative Support Assistant II, Nursing & Allied Health
Oceanside or Cardiff-by-the-Sea or Carlsbad
$2k/mo OnsitePart Time, Temporary
MiraCosta College
MiraCosta College: Public community college offering associate degrees and vocational certification.
2+ YOEHigh school diploma or GED and two years of clerical or administrative support experience, or equivalent training and experience. Associate degree preferred; requires business software, payroll, budgeting, and database skills.
Zoom, Microsoft Excel
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1w
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Business Office Administrative Assistant
Santa Ana, California, United States
OnsitePart Time
Think Together
Think Together: Provides after-school and academic support programs for students.
Submit a resume, a letter of introduction addressed to Melissa O'Neill, and two letters of reference.
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3w
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Business Development & Marketing Assistant
Los Angeles or Irvine or Los Angeles
$62k-$75k/yr OnsiteFull Time
Allen Matkins
Allen Matkins: California law firm specializing in real estate and business law.
Provides administrative and project coordination support for marketing, business development, client programs, and events; requires bachelor’s degree (or equivalent experience), strong writing, organization, and 1–2 years relevant experience preferred.
Microsoft Outlook, Microsoft Word, Microsoft PowerPoint, Microsoft Excel, Litera Foundation
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3w
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Business Intake and Conflicts Assistant
San Diego, California, United States
$28-$34/hr OnsiteFull Time
Cooley
Cooley: Provides legal counsel to technology and life sciences companies.
Proficiency with Microsoft Office, iManage and SharePoint after orientation; strong communication, organizational and analytical skills; available for overtime; bachelor’s degree preferred; prior law firm clerical experience preferred.
Microsoft Office, iManage, Microsoft SharePoint, Microsoft Excel
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1mo
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Assistant Studio Manager
San Diego, California, United States
$20/hr OnsiteFull Time
Orangetheory Fitness Franchise #0303
Orangetheory Fitness Franchise #0303: A franchise-operated fitness studio offering science-based full-body workouts and member-focused coaching.
Supporting the studio manager, assisting with operations, coaching members, and helping achieve studio goals; willingness to learn studio business and complete provided training.
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5d
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Executive Assistant
San Diego, California, United States
$85k-$100k/yr OnsiteFull Time
Bumble Bee Seafoods
Bumble Bee Seafoods: Produces and distributes shelf-stable seafood and specialty protein products.
5+ YOEBachelor’s degree in business administration or related field and 5–10 years of executive support experience, including direct C-suite support. Requires discretion, organization, communication, judgment, and Microsoft 365 proficiency.
Microsoft Outlook, Microsoft Teams, Microsoft PowerPoint, Microsoft Excel, Microsoft Word, Concur
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5d
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Executive Assistant
San Diego, California, United States
$100k-$125k/yr OnsiteFull Time
Manatt, Phelps & Phillips
Manatt, Phelps & Phillips: Integrated professional services firm providing legal, advocacy, and consulting.
10+ YOERequires 10+ years of executive support experience, including 5+ years supporting a C-suite or senior business leader; bachelor's degree preferred; exceptional organization, communication, judgment, discretion, and calendar and travel management.
Microsoft Outlook, Microsoft Word, Microsoft PowerPoint, Microsoft Teams, Microsoft Excel, Zoom, AI-powered productivity tools
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1mo
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Administrative Assistant III - Human Resources
Irvine, California, United States
OnsiteFull Time
In-N-Out Burger
In-N-Out Burger: Family-owned fast-food chain serving fresh, made-to-order hamburgers.
Provide administrative support to HR Business Partners at the Irvine corporate office.
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4d
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PROGRAM ASSISTANT APPRENTICE
Irvine, California, United States
$30/hr OnsiteFull Time, Temporary
City of Irvine
City of Irvine: Municipal government serving the City of Irvine, California.
4+ YOECommunity college coursework in business or office practices and four years of customer service, clerical, or administrative support experience, or equivalent education and experience. Applicants must be ages 18–30.
Microsoft Word, Microsoft Outlook, Microsoft Excel
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1mo
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Executive Assistant, SEPS
San Diego, California, United States
$75k-$83k/yr HybridFull Time
Sony
SonyNYSE: SONY: Sells consumer electronics, video games, and entertainment media.
5+ YOEMinimum 5 years executive-level administrative experience, business-fluent Japanese, college degree preferred, proficient in Microsoft Office suite, strong organization, communication, confidentiality, and ability to support senior executives.
Microsoft Outlook, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Teams, Microsoft OneDrive, Microsoft SharePoint, Microsoft OneNote
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5d
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Advancement Operations Student Assistant
Orange, California, United States
$17/hr OnsitePart Time, Temporary
Chapman University
Chapman University: A private university offering undergraduate and graduate degree programs.
Little to minimal experience, ability to learn support processes, and familiarity with Microsoft Office Suite. Federal work-study eligibility is required; business or accounting major preferred.
Microsoft Office Suite
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2w
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Administrative Assistant II
San Diego, California, United States
$21-$26/hr OnsiteFull Time
Family Health Centers of San Diego
Family Health Centers of San Diego: Provides affordable medical and supportive care to underserved communities.
2+ YOEHigh school diploma or GED, 2 years administrative support experience (medical preferred), ability to type 40-50 WPM, intermediate math, college coursework in English/Business/Math preferred, valid California driver’s license required.
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2mo
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Law School Faculty Assistant
San Diego, California, United States
$25-$28/hr OnsiteFull Time
University of San Diego
University of San Diego: Private Catholic university providing higher education and research programs.
2+ YOEHigh school diploma/GED and 2 years business office experience required; strong PC, word processing and spreadsheet skills; ability to type 60 WPM, maintain confidentiality, and support faculty and academic operations.
Westlaw, Lexis-Nexis, LG 2.5, TWEN, Canvas, Zoom, G-Suite, Microsoft Word, Adobe Acrobat Pro
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2h
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Executive Assistant
Carlsbad, California, United States
$95k-$116k/yr OnsiteFull Time
City of Carlsbad
City of Carlsbad: Municipal government providing public services and programs for Carlsbad residents.
5+ YOEHigh school completion with specialized secretarial or business training and five years of progressively responsible clerical and executive administrative experience; requires communication, judgment, confidentiality, and staff supervision.
word processing, spreadsheet, presentation graphics, database programs, microcomputer systems
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3d
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Program Assistant Apprenticeship - One Irvine Workforce
Irvine, California, United States
$30/hr OnsiteFull Time, Temporary
City of Irvine
City of Irvine: Municipal government providing public services to Irvine residents.
Community college coursework in business, office practices, or a related field, plus four years of customer service, clerical, or administrative support experience or equivalent. California driver's license may be required.
Microsoft Word, Microsoft Outlook, Microsoft Excel
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2mo
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Operations - Assistant Branch Manager - Class X
San Diego, California, United States
$23-$25/hr OnsiteFull Time, Part Time
Continental Battery Systems
Continental Battery Systems: Distributor of automotive, commercial, and industrial power solutions.
Assistant Branch Manager role involving training, performance evaluation, daily data entry, and supporting branch operations.
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9h
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Administrative Assistant
Huntington Beach, California, United States
$20/hr OnsiteFull Time
Premier Workspaces
Premier Workspaces: Provides flexible private offices and shared workspace rental solutions.
Requires valid driver's license, business etiquette, customer service, communication, organizational, multitasking, basic Microsoft Word and Excel skills, Yardi knowledge, background and driving record clearance, and US work authorization.
Microsoft Office, Microsoft Word, Microsoft Excel, Yardi, Internet
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