48 Results for

Intern Jobs in Clayton, MO

Jobs

Belleville, IL10 days ago

Current enrollment in a bachelor’s or Master’s degree program in social work, psychology, counseling, public health, exercise science or related field; OR possession of a bachelors degree in any other field plus 2 years’ supervised clinical experience in a mental health setting. Help patients to understand care processes and the financial aspects of behavioral health care, linking them to resources as needed.

Granite City, IL11 days ago

Practice and promote the recovery model of treatment including trauma-informed care, hope, respect, empowerment, health/wellness and spirituality/connectedness by assisting consumers with regaining control over their own lives through self-directed recovery; including utilizing recovery language in all applicable documentation and teaching recovery and using recovery tools such as WRAP. Complete required data entry and paperwork in accordance with program and agency policies and procedures, including but not limited to progress notes and any other funder requirements: 80% of progress notes and any other required data entry or paperwork submitted within forty-eight hours of the delivery of the service, Timely, accurate and thorough shift report completion.

New!

Saint Louis, Missouri4 days ago

It’s important to note the pay range may be narrower than displayed, as various factors are used to determine the offered compensation package including skill set, level of experience, geographic locations, and other relevant factors- i.e. budgetary requirements. Overview: Intern will provide accounting, financial, and reporting support to the internal finance & legal teams.

St. Louis, MO30+ days ago

Additional duties may include data entry, BOM support, automation projects to streamline processes, periodic testing, and results summary with report out, light design work to support New Products or Research into new technology, based on business need and skill set of the student. Position Summary: The Intern/Co-Op position at Maxcess Rotometrics is targeting Junior or Senior level undergraduate students currently enrolled in an Accredited engineering program at a College or University.

St. Louis, MO30+ days ago

Larson provides a challenging and empowered environment that encourages employee growth and provides flexibility for your active life outside of work. Established in 1979, Larson Engineering, Inc. is an employee-owned company with a long-standing track record of success.

Roxana, IL30+ days ago

$2,894–$3,308 Per Week

Through its refining business segment, Phillips 66 is upgrading crude oil and other feedstocks into higher-value petroleum products including clean-burning gasoline, ultra-low-sulfur diesel, jet fuel, lubricants, petroleum coke and other specialty products while maintaining a high regard for safety and environmental limitations. Areas of focus may include optimization of an existing process, improving energy efficiency, handling key logistics, improving equipment reliability, monitoring emissions or completing permit applications, optimizing the use of equipment by finding and eliminating defects, using sophisticated modeling and data analysis software tools.

St. Louis - Brentwood, Missouri30+ days ago

As an IT Intern, you will assist all areas of the Technology department including responding to support tickets, maintaining technical documentation, and assisting with account creation. NECESSARY QUALIFICATIONS: Candidates must be currently enrolled in a university or technical program in one of the following or a related technical field Information Technology, Computer Science, or Cybersecurity.

Chesterfield, Missouri19 days ago

The actual salary for this position will be determined by a number of factors, including the scope, complexity and location of the role; the skills, education, training, credentials and experience of the candidate; and other conditions of employment. Responsibilities: The Underwriting & Policy Services Internship is designed for business-focused college students interested in insurance, risk management, finance, analytics, or operations.

St. Louis, MO30+ days ago

$20–$25 Per Hour

Compensation depends on several factors including: experience, education, key skills, geographic location of the position, client requirements, external market competitiveness, and internal equity among other employees within APTIM. The Aptim Construction Management (CM) Internship Program is designed to provide students with hands-on experience in the construction field while supporting ongoing project needs.

Arnold, Missouri28 days ago

Intern

You will interact with team members and leaders to gain real-world experience by working alongside our team to learn about many aspects of the day-to-day operations of a branch as well as the overall business including: the Republic Way sales and customer service approach, compliance training, loan closing, leadership training as well as one or more branch operations continuous improvement projects involving various other departments of the company. Assist in daily production of loan origination, processing, closings and fundings including allocating files for doc prep; auditing closed files; prep files ready to fund.

New!

St. Louis, MO5 days ago

With more than 10,000 team members and over 400,000 supplies, Bunzl is recognized as a leading supplier across North America—and proudly certified as a Great Place to Work®. The Environmental Health & Safety (EHS) Intern will support the EHS team with a primary focus on updating policies, procedures, and documentation, as well as assisting with audit templates and guidelines.

St. Louis, MO21 days ago

As the largest independent distributor of welding and gas products in Missouri and downstate Illinois, we distribute a full line of industrial welding and gas related equipment focusing on product quality, best in class service and family values. The Environmental Health & Safety Intern supports CK's safety initiatives by working alongside the Safety Director to assist with employee training, conducting audits and inspections, and helping implement safety policies in compliance with OSHA, DOT, and other regulations across all CK Supply locations.

CHESTERFIELD, Missouri12 days ago

St Louis, MO30+ days ago

In the U.S., Grant Thornton delivers professional services through two specialized entities: Grant Thornton LLP, a licensed, certified public accounting (CPA) firm that provides audit and assurance services ― and Grant Thornton Advisors LLC (not a licensed CPA firm), which exclusively provides non-attest offerings, including tax and advisory services. With $2.7 billion in revenues and more than 50 offices spanning the U.S., Ireland and other territories, the platform delivers a singular client experience that includes enhanced solutions and capabilities, backed by powerful technologies and a roster of 12,000 quality-driven professionals enjoying exceptional career-growth opportunities and a distinctive cross-border culture.

Saint Louis, MO30+ days ago

$21–$23 Per Hour

Crothall has almost 30,000 dedicated team members across its core services, which include: Environmental Services, Patient Transportation, Patient Observation, Facilities Management, Healthcare Technology Solutions, Ambulatory Services, and Sterile Processing. As an intern with Crothall you will have the opportunity to perform/assist in a variety of duties to include the overall cleanliness of the hospital, managing, scheduling, and training of the frontline team members, vendor relations, and patient experience efforts, and more.

Creve Coeur, MO12 days ago

Remote

PracticeMatch is the industry leader in providing practicing physician and resident/fellow data and services to in-house physician staffing professionals and offers a continuum of services designed to provide a clear competitive hiring advantage to health organizations. As the physician recruiting industry evolves, PracticeMatch continues to innovate with new solutions for physician sourcing, developing sourcing solutions enhanced with the power of PracticeMatch databases.

St. Louis, MO30+ days ago

These states include: Alabama, Alaska, Arizona, Arkansas, Delaware, Florida, Georgia, Hawaii, Idaho, Iowa, Kansas, Maryland, Massachusetts, Michigan, Nebraska, Ohio, Pennsylvania, Texas, Utah, Vermont, and Washington State._. If you will be working at home occasionally or permanently, the internet connection must be obtained through a cable broadband or fiber optic internet service provider with speeds of at least 10Mbps download/5Mbps upload.

Saint Louis, MO30+ days ago

$18–$19.75 Per Hour

Contributing to positive patient experiences showing empathy and genuine care: creating heartfelt and personalized moments while serving patients at pick-up, drive-thru, and over the phone; keeping patients healthy by offering immunizations and other services at the register and over the phone; and demonstrating compassionate care by solving or escalating patient problems. As tenure increases, 3rd year Pharmacy Interns take on increasing responsibility of the safety and effectiveness of operations in the pharmacy, including but not limited to: + Living our purpose by following all company SOPs at each workstation to help our Pharmacists and Technicians manage and improve patient health.

St. Louis, MO30+ days ago

Temporary

As a Camp Counselor, you will be an active participant in all camp activities and will assist your Camp Director with a variety of daily tasks, all with the goal of creating a memorable and meaningful camp experience for your campers. We partner with over 230 private clubs all over the country to implement traditional-style day camps for elementary-aged children.

St. Louis, MO30+ days ago

Full-time

Reporting to the VP of Global & Commercial Development, this person will assist with data entry and reporting while collaborating with cross‑functional teams to maintain organized records, marketing support projects, and contribute to consistent, high‑quality operational and marketing outcomes. Duties will include: Assist with Coal Supply Agreement processes by helping route agreements for internal approval, tracking progress across stakeholders, and ensuring final documents are properly stored in the electronic contract repository for easy access and compliance .

Saint Louis, MO29 days ago

You will work alongside skilled professionals in various aspects of the wastewater treatment cycle, including system monitoring, data collection, and analysis, troubleshooting equipment, and ensuring compliance with environmental regulations. As a Treatment Plant Intern, you will gain hands-on experience in water treatment processes, operations, and maintenance at one of our facilities.

Saint Louis, MO30+ days ago

Responsibilities range from participation in initial project set up and buyout, cost spread/estimate familiarity, job quantity tracking, on-site daily activity involvement, concrete material tracking, equipment and manpower productivity tracking, invoice approval, extra work ticket tracking, participation in job cost reporting, project safety compliance, quality control compliance, production analysis/tracking. Is attentive to detail and accuracy, is committed to excellence, looks for improvements continuously, monitors quality levels, finds root cause of quality problems, owns/acts on quality problems.

Granite City, IL30+ days ago

Our mission is to provide compassionate, high-quality healthcare services to our community, promoting wellness and healing through innovative treatments, advanced technology, and a dedicated team of professionals. Disclaimer: Pay is determined based on various factors, including education level, years of experience, relevant certifications, and specific skills related to the position.

New!

Bridgeton, MOToday

Hogan Transportation is a 100-year-old full-service, multi-faceted transportation company operating throughout North America with a tradition of unparalleled, personalized service to clients, utilizing first-class equipment and advanced technology. Associate’s degree in Accounting, Finance, or related field preferred; equivalent relevant experience considered.

CLAYTON, MO30+ days ago

$16.50–$25 Per Hour

Models and shares customer service best practices with all team members to deliver a distinctive and delightful customer experience, including interpersonal habits (e.g., greeting, eye contact, courtesy, etc.) and Walgreens service traits (e.g., offering help proactively, identifying needs, servicing until satisfied, etc.). + Assists pharmacists and other healthcare providers in delivering patient care and services that are within the state scope of practice for pharmacy interns including patient counseling and other health services (i.e. blood pressure, medication therapy management).

O FALLON, MO30+ days ago

$16.50–$25 Per Hour

St Louis, MO21 days ago

Deliver quality, educational instruction to elementary and middle school-aged students in a class and one-on-one environment from the provided curriculum for STEM topics includingAI - Artificial Intelligence,Coding, Robotics, Minecraft, Roblox, Game Design, Video Production for YouTube, STEM & Medicine, 3D Modeling, All-Girls STEAM, Science, Digital Art, Graphic Design, Filmmaking, Digital Animation, and more. Lavner Education, one of the world's leading EdTech companies for kids, powers the Lavner Camps, Tech Revolution, Lavner IQ, and Lavner Fitness brands, offering year-round camps, classes, tournaments, and online tutoring to kids worldwide.

St. Charles, MO14 days ago

A day in the life as an HR InternEach day at HireLevel will be different but the focus will remain the same, placing candidates into jobs that turn into careers. At HireLevel, we partner with employers to ensure they're hiring the right person for the job with most of our positions focused on light-industrial and warehouse roles.

St. Louis, MO30+ days ago

Strong Excel proficiency is required, including frequent use of formulas and functions such as SUM, IF, VLOOKUP, XLOOKUP, SUMIF(S), IFERROR, data sorting, filtering, conditional formatting, and ability to work with large datasets. Under the supervision of the Chief Compliance Officer, the Compliance Intern will assist with a variety of compliance-related tasks and projects including client guideline testing, trade surveillance, regulatory support and testing of the firm's compliance policies and procedures.

New!

St Charles, MO6 days ago

At HireLevel, we partner with employers to ensure they're hiring the right person for the job with most of our positions focused on light-industrial and warehouse roles. Each day at HireLevel will be different but the focus will remain the same, placing candidates into jobs that turn into careers.

Lebanon, IL30+ days ago

For 12 weeks during the summer, you will join our Distribution Operations team in one of our distribution centers across the US and receive an exceptional experience through a mix of on-the-job training, project management experience and ongoing mentorship from your leadership team. Interns will be given the opportunity to manage and lead a process improvement project that supports a key facility/organizational initiative and give a final presentation to the US executive leadership team upon completion of the internship.

St. Louis, MO29 days ago

Full-time

From homes and workplaces to infrastructure and precious landmarks, RPM’s market-leading brands are trusted by consumers and professionals alike to help build a better world. This immersive 12-week program (Anticipated: May 18, 2026 - August 7, 2026), offers a unique opportunity to gain valuable experience, build lasting connections, and make a meaningful impact—all before heading back to campus.

St. Louis, MO30+ days ago

Clayton, MO30+ days ago

$14–$15 Per Hour

Promptly post all blog entries and StangeLawFirm.com articles to Firm Facebook, Twitter, Google+ and LinkedIn Accounts and any other social media accounts as directed. Some primary responsibilities include: Assist in producing, proofreading, and/or generating articles/advertisements for print media at the direction of the Founding Partners.

Clayton, MO30+ days ago

$16–$18 Per Hour

Attorneys at the firm also speak at Continuing Legal Education Seminars for organizations such as the Missouri Bar, National Business Institute, MyLawCLE, and many more. Watch the following video to learn more about starting a career with Stange Law Firm: https://www.youtube.com/watch?v=PJMiDiwD-8E.

Clayton, MO30+ days ago

$16–$18 Per Hour

Stange Law Firm, PC has an immediate opening for a part time Recruiting Intern to assist the Recruiting Director at the Firm's office in Clayton, Missouri. Attorneys at the firm also speak at Continuing Legal Education Seminars for organizations such as the Missouri Bar, National Business Institute, MyLawCLE and many more.

O'Fallon, Missouri30+ days ago

Chesterfield, Missouri8 days ago

Intern

It is an opportunity to be part of a diverse and engaged community of professionals, to be treated as a respected and valued member of a motivated team and to be empowered to do exceptional work that advances the best interest of everyone involved. We recognize the importance of creating a work environment that is both rewarding to our employees and supportive of our unwavering commitment to provide unparalleled service to our clients.

Bridgeton, MO30+ days ago

With nearly 40,000 team members, travel stops are the core business along with products and services that provide value for professional drivers, fleets, traveling public, RVers, alternative energy and wholesale fuel customers. Our interns work alongside seasoned leaders to learn facility operations, team management, and exceptional customer service, all while helping professional drivers and travelers get back on the road quickly.

O'Fallon, MO30+ days ago

$23–$28 Per Hour

Program Components: • Impactful assignments that drive business results • Networking sessions and leadership speakers’ series • Volunteer and team building experiences Program Qualifications: • Currently enrolled in an undergraduate or accelerated graduate program graduating Dec 2027 to June 2028 • Ability to partner across the organization • Proficient with Microsoft Office Suite (e.g., Excel, PPT) and CRM preferred • Strong analytical and organizational skills • Excellent communication skills and attention to detail • Ability to work independently and as part of a team • Familiarity with project management tools (e.g., Smartsheet, SharePoint, or similar) preferred Application Process: • Submit your application • If eligible, receive invitation for a one-way digital interview; this includes answering pre-recorded interview questions that advance your application • If recommended further, receive invitation for final round interview(s); you will have the opportunity to meet with us virtually to learn more about our business and culture Compensation: $23- $28/ hour This role is not eligible for Mastercard’s work authorization sponsorship. As a Real Estate Services Intern, you will support day-to-day facilities operations, assist with project management activities, and help oversee onsite café services to enhance workplace experience, operational efficiency, and vendor performance.

St. Louis, MO30+ days ago

As a global leader in the pet care industry, we emphasize the importance of regulatory compliance and are committed to delivering innovative solutions that positively impact the lives of people and pets around the world. Our Regulatory and Scientific Affairs (RSA) Team provides business-focused, collaborative, and strategic advice for the dynamic needs of Nestlé Purina PetCare Company.

ST LOUIS, Missouri30+ days ago

The jobs listed are examples of the typical kinds of positions that Costco may hire for when openings exist. Under the supervision of a registered pharmacist, dispenses prescription medications in a high-volume pharmacy.

O'Fallon, MO30+ days ago

Assists trainer with all administrative tasks (i.e. payroll, sales book, memo verification, invoices), as well as hiring, including interviews and orientations. You’ll see our stores from the inside and work hands-on with district managers running multi-million dollar businesses.

CHESTERFIELD, Missouri30+ days ago

St. Louis, MO30+ days ago

$23–$24 Per Hour

St. Louis, MO30+ days ago

$22–$35 Per Hour

To be considered, candidates must demonstrate the following qualifications through their resume, including relevant coursework, school projects, internships, co-ops, or professional experience: + Education: Currently enrolled in a Bachelor’s or Master’s program in technical disciplines such as Computer Science, Data Science, Cybersecurity, Engineering, or a closely related field. Build Community & Connections: Our interns thrive in a vibrant, supportive community—connecting through curated events, cross-functional projects, employee resource groups, and peer-driven initiatives that foster lasting relationships and professional growth.

Resume Resources

Free Resume Templates Free Resume Builder

Get noticed by top employers!

Upload your resume to let employers know you're open to Intern job opportunities. Plus, receive relevant job recommendations in your inbox.

Intern Jobs in Clayton, MO

Jobs

Behavioral Health InternChestnut Health Systems

Recovery Support Technician InternChestnut Health Systems

Finance InternTierpoint

Engineering Intern/Co-OpMaxcess International

Engineer Intern - StructuralLarson Engineering

2026 University Intern - Wood River Refining EngineerPhillips 66

IT Intern/Co-opARCO a Family of Construction Companies

Underwriting & Policy Services InternBerkley

Constructions Management InternAPTIM

Branch Operations InternRepublic Finance, LLC

EHS Intern - Summer 2026BUNZL

Environmental Health and Safety InternCK Supply

Student Nurse InternSt. Luke's Hospital - MO

Audit & Assurance Intern - Winter 2027Grant Thornton

Environmental Services Intern (SUMMER) / Crothall Healthcare, St. Louis Children's HospitalCompass Group, North America

Physician Relations Intern (Remote)Profiles

Express Scripts Summer Intern - 2026The Cigna Group

Pharmacy InternCVS Health

Summer Day Camp Counselor-InternKE Camps

Marketing InternPeabody Energy

Treatment Plant InternMetropolitan St. Louis Sewer District

Project Engineer InternClayco

Pharmacy Student InternGateway Regional Medical Center

Insurance Summer InternHogan

Pharmacy Intern YearWalgreens

Pharmacy InternWalgreens

Paid STEM Instructor/Intern - Summer PositionLavner Education

Human Resources InternHireLevel

Compliance Analyst InternKennedy Capital Management

Human Resource InternHireLevel

Distribution Operations/Supply Chain InternReyes Holdings

Marketing: Graphic Design Intern - Summer 2026Carboline Global Inc.

Human Resources Leadership Development Program - Summer Intern (On-Site)The Cigna Group

Marketing Intern (Part-time)Stange Law Firm

Human Resource InternStange Law Firm

Recruiting Intern (Part Time)Stange Law Firm

Maintenance Summer Intern - O'Fallon, MOTrue Manufacturing

Information Technology InternBowman Consulting Group, Ltd.

Retail Management Intern - Summer 2026)Love's Travel Stops & Country Stores

Real Estate Services Intern, Summer 2026 - St. Louis, MOMasterCard

Regulatory and Scientific Affairs InternNestle

RX Grad InternCostco Wholesale Corporation

District Manager Intern - Lower Midwest and ArkansasALDI

Intern - Medical Group OperationsSt. Luke's Hospital - MO

Finance Summer InternshipThe Cigna Group

Technology Development Program (TECDP) Summer Internship 2026The Cigna Group

Resume Resources