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49 operation intern jobs at 28 companies in O'Fallon, MO

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Intern to Intern Conversion – Business Functions (All) (Summer 2026 Intern Program)
Everett or Huntsville or Charleston or Tinker Air Force Base or Oklahoma City or Berkeley or Huntington Beach or Hazelwood or Germantown or El Segundo or China Lake or Arlington or Ridley Park or Tukwila or North Charleston or Kennedy Space Center or Fairfax or Houston or Colorado Springs or Chicago or Long Beach or Renton or Saint Louis or Dallas or Seattle or Auburn or Philadelphia or San Antonio or Kent or Mesa
$38k-$64k/yr OnsiteFull Time, Internship
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, satellites, and defense systems.
Must be enrolled in a bachelor's or higher program (graduation on/after Aug 2027), be available full-time for a 10-12 week Summer 2027 internship, and have previously interned with Boeing.
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2d
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Pharmacy Intern
Fairview Heights, Illinois, United States
$18-$31/hr OnsiteInternship
Walgreens
Walgreens: Retail pharmacy providing prescriptions and health and wellness products.
Must be enrolled in a school of pharmacy, fluent in English, willing to work flexible hours including evenings and weekends, and able to learn pharmacy operations and customer service.
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1w
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Fall Management Trainee Intern
St. Louis, Missouri, United States
$16/hr OnsiteInternship
Enterprise Mobility
Enterprise Mobility: Provider of vehicle rental and diverse mobility solutions.
0.5+ YOERising senior enrolled full-time, 6+ months sales/customer service/marketing/management experience, valid driver's license, authorized to work in the U.S., 10–12 week commitment.
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3mo
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MRI Intern, Mercy South
Saint Louis, Missouri, United States
OnsitePart Time
Mercy
Mercy: Operates hospitals and clinics in the Midwestern United States.
High school graduate; currently in second year of an accredited Radiologic Technology program; current BLS; English communication; basic computer skills; ability to operate radiology equipment and assist patients.
Radiology equipment, PACS (not specified)
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3mo
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MRI Intern, Mercy South
Saint Louis, Missouri, United States
OnsitePart Time
Mercy
Mercy: Integrated health care system providing hospital and clinical services.
High school graduate; enrolled in second year of radiologic technology program; current BLS; English proficiency; basic computer skills; ability to lift and move patients and operate radiology equipment.
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2w
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Intern, Outdoor Leadership Corps (Assistant Crew Leader)
St. Louis, Missouri, United States
$17/hr OnsitePart Time, Temporary
Missouri Botanical Garden
Missouri Botanical Garden: Operates botanical gardens for research, education, and plant conservation.
Hands-on conservation and restoration experience; ability to operate hand and power tools; must complete First Aid and CPR; high school diploma or equivalent required; ability to work outdoors and lift up to 60 lbs.
Microsoft Access, Microsoft Office
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3mo
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Pharmacy Pre-Grad Intern - WM
Collinsville, Illinois, United States
$21-$34/hr OnsitePart Time
Walmart
WalmartNYSE: WMT: Multinational retail operating discount stores and supermarkets.
Must be enrolled in an accredited pharmacy school; support pharmacy operations, process prescriptions, deliver patient care, and maintain inventory while following HIPAA guidelines.
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Recruiting Intern Summer 2026 - Distribution |St. Louis, MO
Creve Coeur, Missouri, United States
$17-$18/hr OnsiteMultiple Commitments Available
Bunzl
BunzlLondon Stock Exchange: BNZL: Global distributor of essential non-food consumables and services.
Pursuing a Bachelor's in HR/Business, available full-time onsite Summer 2026 (40 hrs/wk). Responsibilities include screening candidates, scheduling interviews, using ATS and Microsoft Teams, and supporting recruiting operations.
Microsoft Teams, LinkedIn, Applicant Tracking System (ATS)
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2w
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Internship Program (Edwardsville, Illinois) (41707)
Fairview Heights, Illinois, United States
$15/hr OnsitePart Time
Greater St. Louis Area Council
Greater St. Louis Area Council: Provides outdoor youth programs and leadership training in St. Louis.
High school diploma or current high-school junior/senior; strong written/verbal communication; Microsoft Office proficiency; interest in non-profit; schedule/hours negotiable.
Microsoft Office Suite
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1d
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Operations Management Intern, Summer 2027 - Grain Handling (Multiple U.S. Locations)
Minneapolis or Savage or East St. Louis or Linden or Albion
$22-$30/hr OnsiteInternship
Cargill
Cargill: Produces and distributes food, agricultural, and industrial products globally.
Must be pursuing a Bachelors or Masters (graduating Dec 2027–May 2029), right to work in the U.S., willing to relocate, work rotating shifts and weekends, able to work outdoors and at heights, and possess strong communication and teamwork skills.
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2mo
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Operations Manager-Global Settlements
Saint Louis, Missouri, United States
OnsiteFull Time
Stifel
StifelNYSE: SF: Global wealth management and investment banking firm.
8+ YOEOversee global settlements operations; lead international equity and fixed-income settlements; ensure compliance and timely processing.
Microsoft Office, Excel, Word, PowerPoint, SQL, CitiDirect, NetX360, DTC settlement platforms
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Trade Advisor, FTZ
Cheektowaga or Nashville or Huntsville or Cleveland or Chicago or Boston or Albany or Birmingham or Savannah or Charleston or Columbia or Raleigh or Charlotte or Houston or Kansas City or Grand Rapids or Milwaukee or Madison or Indianapolis or St. Louis or Cincinnati or Philadelphia or Detroit or Atlanta or Edison or Syracuse or Rochester
$60k-$75k/yr OnsiteFull Time
Mohawk Global
Mohawk Global: Provides international freight forwarding and customs brokerage services.
3+ YOEBachelor's in International Business or related field; 3+ years FTZ operations; strong knowledge of FTZ regulations and CBP; FTZ software experience; LCB or CZS a plus.
FTZ software platforms, Integration Point, QuestaWeb
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2mo
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Operations Manager-Global Settlements
Saint Louis, Missouri, United States
OnsiteFull Time
Stifel Financial
Stifel FinancialNYSE: SF: Financial services firm providing wealth management and investment banking.
8+ YOEOversee international equity and fixed-income settlements; manage supervision, SLAs, regulatory compliance, and process improvements.
Microsoft Office, SQL, CitiDirect, NetX360, DTC settlement, BETA
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1mo
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Sports Management, Tournament Operations Internship | 2026 Fall
O'Fallon, Missouri, United States
FieldInternship
Lafayette Aviators
Lafayette Aviators: Collegiate summer baseball team and sports entertainment provider.
Internship providing experience in event management, marketing, logistics, staff management, POS operation, and customer service for youth and high school baseball/softball tournaments.
POS
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2mo
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(18yrs+ to apply) Assistant Floral Manager - Woods Mill (141 & Clayton)
Clayton, Missouri, United States
OnsiteFull Time
Schnucks
Schnucks: Midwest supermarket chain providing groceries and pharmacy services.
0+ YOEInternal candidates preferred; six months with Schnucks for store/teaching roles; good standing; manager approval for interviews.
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2d
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Manager - Business Operations - General Internal Medicine
St. Louis, Missouri, United States
OnsiteFull Time
SSM Health
SSM Health: Provide medical services through hospitals and outpatient clinics.
5+ YOE2+ MgmtManages daily departmental operations, staff relations, budgets, compliance, contracts and projects; bachelor's degree or equivalent; 5 years' experience with 2 years leadership.
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2mo
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International Operations Manager
Bridgeton, Missouri, United States
OnsiteFull Time
AIT Worldwide Logistics
AIT Worldwide Logistics: Global provider of freight forwarding and supply chain solutions.
7+ YOE3+ MgmtManage daily international operations, staff development, and multi-station P&L; drive growth, negotiate carrier agreements, and ensure KPI targets.
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1mo
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Senior Consultant, Business SOX IA
Austin or St. Louis or Philadelphia or Duluth or Brunswick or Atlanta or Dallas
OnsiteFull Time
Armanino
Armanino: Provides accounting, tax, and consulting services to diverse organizations.
2+ YOEBachelor's in Accounting/Finance required; 2+ years public accounting or corporate internal audit; strong SOX/COSO/GAAP/GAAS knowledge; supervisory experience; Microsoft Office and Adobe Acrobat experience; progress toward CPA/CIA preferred.
Microsoft Office Suite, Adobe Acrobat Engagement
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3mo
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General Manager
Macomb, Illinois, United States
OnsiteFull Time
GF Enterprise
GF Enterprise: Operates quick-service restaurant franchises.
2+ YOE2+ MgmtHigh school diploma or GED; 2-4 years supervisory experience in food service/retail; basic computer literacy; internal promotion preference; reliable transportation; basic business math; ability to lift up to 50 lbs; standing/walking most of shift.
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1mo
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Stadium Operations - 2026 Fall Internship
Sauget, Illinois, United States
OnsiteInternship, Temporary
Florence Y'alls
Florence Y'alls: Professional independent baseball team in the Frontier League.
College-credit internship; authorized to work in the U.S.; valid driver's license; able to lift up to 50 lbs; available for long days, evenings, weekends, and holidays; teamwork and problem-solving skills required.
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