30 2026 intern jobs at 16 companies in Ballwin, MO

3w
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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.
1w
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Robotics Intern- Fall 2026
Saint Louis, Missouri, United States
$15/hr HybridInternship
Girl Scouts of Eastern Missouri
Girl Scouts of Eastern Missouri: Empowering girls through leadership, community, and outdoor educational programs.
Enrolled in an associate, bachelor's, or graduate program (≥1 semester completed), pursuing a relevant field; available 20–30 hrs/week; eligible for college credit; paid minimum wage.
1mo
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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)
1mo
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Architecture Student Intern - Fall 2026
St. Louis, Missouri, United States
HybridInternship, Part Time
HOK
HOK: Global architecture, engineering, and planning design firm.
Currently enrolled in an architecture program; available ≥20 hrs/week with majority onsite Tue–Thu in St. Louis; basic hand and CAD/BIM drafting skills; Revit preferred; portfolio and resume required.
CAD, BIM, Revit
4w
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Support Services Intern (Part time - Fall Semester 2026)
Chesterfield or St. Louis
$15/hr OnsitePart Time, Internship
ATB Technologies
ATB Technologies: Provides managed IT services and cybersecurity for mid-sized organizations.
Currently enrolled college student in a relevant IT field, basic proficiency with Windows/Mac/mobile devices, strong communication and problem-solving, 20+ hours/week onsite for Fall 2026, familiarity with networking/cloud and IT certifications a plus.
Windows, Mac
2mo
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Data Analyst Intern - Summer 2026
Saint Louis, Missouri, United States
OnsiteMultiple Commitments Available
Stifel Financial
Stifel FinancialNYSE: SF: Financial services firm providing wealth management and investment banking.
Pursuing degree in IT/CS/Finance/Business; strong SQL, Excel; able to perform data extraction/analysis and document requirements.
SQL, Microsoft Excel, Python, AWS, SQL Server
3w
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Strategic Student Program: Preference & Engagement Marketing Intern (CMMK, Fall 2026)
St. Louis, Missouri, United States
$18-$50/hr RemoteMultiple Commitments Available
Siemens
SiemensXETRA: SIE: Manufactures industrial automation, infrastructure, and energy technology systems.
0+ YOEUniversity student (sophomore or above) with minimum 3.0 GPA, available part-time starting Fall 2026, authorized to work in the U.S. without sponsorship; strong written communication, research and project coordination skills; no prior experience required.
2mo
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Clinical Intern - Masters Level Fall 2026
Fairview Heights, Illinois, United States
$3k/hr OnsiteInternship
Hoyleton Youth & Family Services
Hoyleton Youth & Family Services: Provides foster care, residential treatment, and behavioral health services.
Masters student in field; DCFS/CANTS clearance; 21+; driving license and insurance; able to build rapport; professional with clients and staff.
2mo
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ST Empower Your Life Student Intern Fall 2026
Jacksonville, Illinois, United States
$15/hr OnsiteInternship
Illinois College
Illinois College: Private liberal arts college providing undergraduate and graduate education.
Student internship requiring 5-10 hours/week for 16 weeks; $15/hour; supports mental health programming and campus peer sessions; completion of 8-module peer educator training.
2w
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Performance Engineer Intern, Systems Software- Fall 2026
St. Louis, Missouri, United States
$20-$71/hr OnsiteFull Time, Internship
NVIDIA
NVIDIANASDAQ: NVDA: Designs GPU-accelerated computing and artificial intelligence hardware.
Enrolled in a Bachelor's in CS/CE/SE or related; experience with Python and Linux; familiarity with ML lifecycle; teamwork and CS fundamentals; interest in performance benchmarking and containers.
Python, Linux, PyTorch, CUDA, cuOPT, CUTLASS, cuDNN, Kubernetes, Slurm
2mo
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Fall 2026 Internship - Unpaid
St. Louis, Missouri, United States
HybridInternship, Part Time
International Institute of St. Louis
International Institute of St. Louis: Providing comprehensive resettlement and support services for immigrants.
Organized, reliable students with strong communication skills who can work independently and in teams; interest in nonprofit or social impact; availability for a semester at 10–20 hours/week.
1w
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AI Agent & Data Quality Intern (Part Time - Fall Semester 2026)
Chesterfield, Missouri, United States
$15/hr OnsitePart Time, Internship
ATB Technologies
ATB Technologies: Provides managed IT services and cloud solutions for businesses.
Currently enrolled student or recent graduate with strong interest in AI, attention to detail, experience using AI tools, ability to test and document agent behavior, and ability to work on-site at least 20 hrs/week.
Copilot Studio
2mo
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LindenTeach Program Spring 2026
St. Charles, Missouri, United States
$106/day OnsiteInternship
City of St. Charles School District
City of St. Charles School District: Public school district providing K-12 and adult education services.
60 college credit hours; Missouri substitute teaching certificate; Lindenwood internship approval; ability to assist in absence coverage and manage basic classroom duties.
Microsoft Office, Educational software
2w
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Performance Engineer Intern, Systems Software- Fall 2026
St. Louis, Missouri, United States
$20-$71/hr OnsiteFull Time, Internship
NVIDIA
NVIDIANASDAQ: NVDA: Designs graphics processing units and artificial intelligence hardware.
Enrolled in a Bachelor's in CS/CE or related; experience with Python and Linux CLI; familiarity with ML lifecycle, teamwork, and interest in performance benchmarking and GPU-accelerated workloads.
Python, Linux, PyTorch, CUDA, cuOPT, CUTLASS, cuDNN, Kubernetes, Slurm
4w
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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.
3w
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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
1mo
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Internship Program (41458)
St. Louis or Illinois or Missouri
$15/hr HybridPart Time, Internship
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 college student; strong written and verbal communication; Microsoft Office proficiency; interest in non-profit/Scouting; approximately 20 hrs/week; internship term 12–16 weeks (Fall 2026).
Microsoft Office
5d
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Clipboard Job Fair 7/16/2026
Grafton, Illinois, United States
OnsiteFull Time
Nexus Health Management
Nexus Health Management: Operates and manages skilled nursing and rehabilitation facilities.
Hosts a recruiting event promoting employee benefits, 401(k), paid vacation/sick/holidays, tuition reimbursement, and internal growth opportunities.
1mo
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$445K + Compensation Package | Internal Medicine Physician with Mercy Hospital Washington, MO
Washington, Missouri, United States
$445k/yr OnsiteFull Time
Mercy
Mercy: Operates hospitals and clinics in the Midwestern United States.
Board certified or board eligible in Internal Medicine; ability to build and manage a large patient panel; familiarity with Epic EMR; summer 2026 start preferred.
Epic EMR, AI Dax Co-pilot
1mo
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$445K + Compensation Package | Internal Medicine Physician with Mercy Hospital Washington, MO
Washington, Missouri, United States
$445k/yr OnsiteFull Time
Mercy
Mercy: Integrated health care system providing hospital and clinical services.
Board certified or board eligible internal medicine physician; experience with Epic EMR and AI Dax Co-pilot preferred; ability to join an established primary care practice; summer 2026 start.
Epic EMR, AI Dax Co-pilot

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