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35 event assistant jobs at 26 companies in Hesperia, CA

1mo
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Executive Assistant
Brea, California, United States
$90k-$110k/yr OnsiteFull Time
Infusion For Health
Infusion For Health: Provides infusion therapy services for patients with chronic conditions.
Proven executive assistant experience supporting C-suite, strong organizational and typing skills, proficiency with Microsoft Office, Google Workspace, QuickBooks, DocuSign, and video conferencing, event planning and bookkeeping knowledge.
Microsoft Office, Google Workspace, QuickBooks, DocuSign
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3mo
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Executive Assistant
Anaheim, California, United States
$88k-$98k/yr OnsiteFull Time
Pacsun
Pacsun: Sells lifestyle apparel and accessories for teens and young adults.
3+ YOE4-year degree required; 3+ years as an Executive Administrative Assistant supporting multiple executives; proficient in Microsoft Office, Canva, DocuSign, Concur; strong calendar management and event planning skills.
Microsoft Office, Canva, Docusign, Concur
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1mo
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Temporary Events Assistant
Claremont, California, United States
$20-$22/hr OnsiteFull Time
Scripps College
Scripps College: Private liberal arts women's college in Claremont, California.
Coordinate event reservations and logistics using EMS, support event planning, provide administrative support, strong communication, MS Office and WordPress experience; bachelor’s degree or equivalent preferred.
Event Management System (EMS), WordPress, Microsoft Office Suite
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2mo
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Ministry Operations Assistant
Riverside, California, United States
$22-$25/hr OnsitePart Time, Temporary
Southeastern California Conference of Seventh-day Adventists
Southeastern California Conference of Seventh-day Adventists: Administers Seventh-day Adventist churches and schools in southeastern California.
Administrative, logistical, and event support; clerical duties; coordination; on-site event support; some weekend availability.
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3w
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Honors Program - Student Office Assistant
Riverside, California, United States
$17-$18/hr OnsitePart Time
La Sierra University
La Sierra University: Private university offering undergraduate and graduate degree programs.
Provide clerical support for the Honors Program, staff front desk, maintain inventory, update communications, assist recruiting and events; reliable, strong clerical and computer skills required.
Microsoft Word, Microsoft Excel, Google products, Banner, Etrieve, Degree Works
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2w
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Student Leadership and Engagement Leadership Lab - Student Assistant
San Bernardino, California, United States
$17/hr OnsiteMultiple Commitments Available
California State University
California State University: Public university system providing higher education and academic research.
Currently enrolled CSU student with minimum GPA, able to communicate effectively, learn tasks, perform data entry, assist with events, and work on-campus; eligible to work in the U.S.
Coyote Connection (Engage), Facebook, Instagram, Twitter, TikTok
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2mo
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Assistant Manager, Banquet
Highland, California, United States
OnsiteFull Time
Yuhaaviatam of San Manuel Nation
Yuhaaviatam of San Manuel Nation: Operates a luxury resort and casino in Southern California.
3+ YOE2+ MgmtBachelor's in Hospitality; 3+ years in Banquet/Catering/Event Management; 2+ years supervisory role; Food Handler’s Card; ServSafe certification; valid driver’s license.
Microsoft Office
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2mo
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Park Assistant Manager
Pomona, California, United States
$20-$21/hr OnsiteFull Time
Kids Empire
Kids Empire: Operates indoor playground centers for children and family entertainment.
Supervise staff, ensure guest satisfaction and safety, operate POS/iPad for check-in and cash handling, open/close park, schedule events; high school diploma and weekend/holiday availability required.
iPad, POS
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3w
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Machine Operator I - Hiring Event
Chino, California, United States
$21-$33/hr OnsiteFull Time
Amcor
AmcorNYSE: AMCR: Develops and produces flexible and rigid packaging solutions globally.
Operate and supervise production lines, perform quality and weight checks, handle scrap, assist maintenance, and follow EHS and PPE requirements.
McGuires
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1d
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Field Marketing Assistant
Rancho Cucamonga or Riverside County or San Bernardino County
$17-$18/hr FieldPart Time
i9 Sports
i9 Sports: Providing recreational youth sports leagues and instructional athletic programs.
Requires reliable transportation, valid driver's license, strong organization and communication skills, physical ability to handle signs and event booths, and basic digital reporting proficiency.
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2mo
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Job Fair Hiring Event - CPP Students #705082049
Pomona, California, United States
$17-$20/hr OnsitePart Time
Cal Poly Pomona Foundation
Cal Poly Pomona Foundation: Auxiliary organization providing support services for Cal Poly Pomona.
Entry-level student positions across multiple campus departments; candidates should attend on‑site interviews with a resume; conditional offer contingent on satisfactory background check.
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2mo
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Multicultural Services Student Assistant (26/27) - FWS
La Verne, California, United States
$17/hr OnsitePart Time
University of La Verne
University of La Verne: Private non-profit university offering undergraduate and graduate degrees.
Must be a ULV student and Federal Work Study recipient; basic understanding/interest in diversity, equity, and social justice; ability to work independently, organize tasks, maintain databases, perform clerical duties, assist events, and lift up to 20 lbs occasionally. Proficiency with specified software required.
Microsoft Word, Microsoft Excel, Microsoft Publisher, Canva, GivePulse, HandShake, SurveyMonkey, Flickr, Qualtrics, Microsoft PowerPoint
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3mo
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Volleyball Assistant Coach
Hesperia, California, United States
OnsitePart Time
Summit Leadership Academy
Summit Leadership Academy: Provides secondary education and public service career training.
Previous coaching or playing experience with youth preferred; CPR/First Aid certification required; ability to work after-school hours and attend events; bilingual in English/Spanish is a plus.
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2w
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Hospitality Ministry Assistant Director
Riverside, California, United States
OnsitePart Time
The Grove Community Church
The Grove Community Church: Providing religious services and community development programs.
Leads hospitality teams, volunteers, guest experiences, and large community events while coordinating vendors, implementing systems, and aligning activities with the church's faith and foundational beliefs.
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2w
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Insomniac - Nocturnal Wonderland 2026 Seasonal Production Assistant
San Bernardino, California, United States
$17-$20/hr OnsitePart Time, Seasonal
Live Nation Entertainment
Live Nation EntertainmentNYSE: LYV: Sells tickets and produces concerts for live entertainment events.
Experience in event planning, management, and coordination; strong Microsoft Office skills, communication, organization, problem-solving, deadline management, and ability to perform frequent physical tasks.
Microsoft Excel, Microsoft Word, Microsoft PowerPoint
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2w
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Insomniac - Nocturnal Wonderland 2026 Seasonal Production Assistant
San Bernardino, California, United States
$17-$20/hr OnsitePart Time, Seasonal
Insomniac
Insomniac: Produces immersive music festivals and electronic dance music events.
Experience in event planning, management, and coordination; strong Microsoft Office skills, communication, organization, problem-solving, deadline management, and ability to perform demanding physical tasks.
Microsoft Excel, Microsoft Word, Microsoft PowerPoint
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1w
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Production Assistant - THE POLAR EXPRESS Train Ride,Perris, CA
Perris, California, United States
$21/hr OnsiteTemporary
Rail Events Productions
Rail Events Productions: Produces officially licensed live entertainment shows on heritage trains.
Special or theatrical event experience, valid US driver's license, van-driving ability, petty cash and expense report experience, strong communication, organization, teamwork, and problem-solving skills.
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1w
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Production Assistant - THE POLAR EXPRESS Train Ride,Perris, CA
Perris, California, United States
$21/hr OnsiteTemporary
American Heritage Railways
American Heritage Railways: Operates historic heritage railroads and themed tourist rail experiences.
Experience with special or theatrical events; valid US driver's license; ability to drive passenger vans, handle petty cash, write expense reports, communicate effectively, and work independently in changing team environments.
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3w
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Lead Student Government Office Assistant PTS
Pomona, California, United States
$19/hr OnsitePart Time
Associated Students, Inc. Cal Poly Pomona
Associated Students, Inc. Cal Poly Pomona: Operates recreational facilities and student services for Cal Poly Pomona.
2+ YOEBachelor's major in communications, business/event management, public administration or related preferred; minimum 2 years clerical/admin experience; 1 year student‑government or student‑union experience preferred; supervisory experience preferred; strong communication and organizational skills.
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2mo
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Promotional Specialist - Bacardi - Ontario, CA
Ontario or Ontario
$40/hr FieldPart Time
TEAM
TEAM: Experiential marketing agency creating brand activations and consumer engagements.
Outgoing, friendly promotional specialist to staff events, engage consumers, distribute materials, and assist setup; prior brand ambassador or event experience preferred.
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