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Internship Operating Engineer Jobs in St Louis, MO

Propose and prioritize improvements, then partner with engineering and design to execute them ... Comfort operating with ambiguity - we'll give you context and direction, but you'll need to drive ...

Propose and prioritize improvements, then partner with engineering and design to execute them ... Comfort operating with ambiguity - we'll give you context and direction, but you'll need to drive ...

Digital Co-op

Saint Louis, MO · Hybrid

$21 - $30/hr

... operating companies, subsidiaries and affiliates. Thousands of co-workers serve the company with ... Within our Digital department, we host dozens of interns and co-ops annually. Our collegiate co ...

Digital Co-op

Saint Louis, MO · On-site

$21 - $30/hr

... operating companies, subsidiaries and affiliates. Thousands of co-workers serve the company with ... Within our Digital department, we host dozens of interns and co-ops annually. Our collegiate co ...

Digital Co-op

Saint Louis, MO · Hybrid

$21 - $30/hr

... operating companies, subsidiaries and affiliates. Thousands of co-workers serve the company with ... Within our Digital department, we host dozens of interns and co-ops annually. Our collegiate co ...

MECHANIC, GEN MAINT - SR

Saint Louis, MO · On-site

$20.17 - $33.51/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... interns, fellows and other medical professionals. Recognizing its excellence in nursing care ... Facilities Engineering maintains 6 million square foot of facilities dedicated to clinical and ...

MECHANIC, GEN MAINT - SR

Saint Louis, MO · On-site

$23.75 - $32.25/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... interns, fellows and other medical professionals. Recognizing its excellence in nursing care ... Facilities Engineering maintains 6 million square foot of facilities dedicated to clinical and ...

General Maintenance Mechanic - SR

Saint Louis, MO · On-site

$23.75 - $32.25/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... interns, fellows and other medical professionals. Recognizing its excellence in nursing care ... Facilities Engineering maintains 6 million square foot of facilities dedicated to clinical and ...

MILLWRIGHT - SR

Saint Louis, MO · On-site

$23.10 - $38.36/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Facilities Engineering maintains 6 million square foot of facilities dedicated to clinical and ... Operating machine tools to fabricate parts required during overhaul, maintenance or set-up of ...

MILLWRIGHT - SR

Saint Louis, MO · On-site

$22.75 - $29.75/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Facilities Engineering is comprised of 150 professionals, including engineers, MEP mechanics ... Operating machine tools to fabricate parts required during overhaul, maintenance or set-up of ...

Mechanical Packaging Associate

Saint Louis, MO

$61K - $85K/yr

  • Medical

  • Retirement

... engineering, or related field * 6+ months of mechanical packaging experience or relevant internship ... Contact us at accommodations@nestle.com or please dial 711 and provide this number to the operator ...

General Maintenance Mechanic - SR

Saint Louis, MO · On-site

$20.17 - $33.51/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... interns, fellows and other medical professionals. Recognizing its excellence in nursing care ... Facilities Engineering maintains 6 million square foot of facilities dedicated to clinical and ...

Showing results 21-40

Internship Operating Engineer information

See St Louis, MO salary details

$10

$18

$28

How much do internship operating engineer jobs pay per hour?

As of Aug 15, 2026, the average hourly pay for internship operating engineer in St. Louis, MO is $18.78, according to ZipRecruiter salary data. Most workers in this role earn between $15.67 and $20.34 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as an internship operating engineer?

To thrive as an Internship Operating Engineer, you need a foundational understanding of mechanical and electrical systems, safety protocols, and typically be pursuing or have a degree in engineering or a related technical field. Familiarity with building automation systems, HVAC controls, and maintenance management software is often expected. Strong problem-solving abilities, attention to detail, and effective teamwork and communication skills help interns excel in this hands-on environment. These skills ensure safe, efficient operation of building systems and support career development in facilities management.

What is the difference between Internship Operating Engineer vs Operating Engineer?

AspectInternship Operating EngineerOperating Engineer
CredentialsTypically pursuing or completed relevant technical training or certificationsHigh school diploma or equivalent; often requires licenses or certifications depending on state
Work EnvironmentEntry-level, training-focused, often in construction sites or facilitiesFull-time, hands-on work in construction, industrial, or facility settings
Employer & Industry UsageInternship programs in construction, utilities, or industrial firmsConstruction companies, industrial plants, utilities

The Internship Operating Engineer is an entry-level position designed for training and skill development, often part of an internship program. In contrast, the Operating Engineer is a fully qualified professional responsible for operating heavy machinery and managing equipment in various industrial settings. The internship provides foundational experience, while the operating engineer role involves independent work and greater responsibility.

What does an internship operating engineer do?

An Internship Operating Engineer assists in the operation and maintenance of building systems, such as heating, ventilation, air conditioning (HVAC), electrical, and plumbing. Interns often work under the supervision of experienced engineers to learn how to monitor equipment, perform routine inspections, and troubleshoot issues. This role provides valuable hands-on experience in facility management and building operations, preparing interns for a career as a licensed Operating Engineer. Responsibilities may also include helping with repairs, maintaining logs, and ensuring safety protocols are followed.

What types of projects or tasks can I expect to work on as an internship operating engineer?

As an Internship Operating Engineer, you can expect to assist with the operation, maintenance, and troubleshooting of mechanical and electrical systems in facilities such as commercial buildings or industrial plants. Typical tasks may include monitoring equipment performance, conducting routine inspections, supporting preventive maintenance schedules, and helping diagnose system issues under the guidance of experienced engineers. You will likely collaborate closely with senior operating engineers, facility management teams, and vendors, gaining hands-on experience that is valuable for future full-time roles in building operations or plant engineering.

What are popular job titles related to Internship Operating Engineer jobs in St. Louis, MO?

For Internship Operating Engineer jobs in St. Louis, MO, the most frequently searched job titles are:

What cities near St. Louis, MO are hiring for Internship Operating Engineer jobs?

Cities near St. Louis, MO with the most Internship Operating Engineer job openings:

2027 University Intern- Health, Safety, and Environment

Phillips 66

Roxana, IL

$2.0K - $3.3K/wk

Internship

Posted 3 days ago

New


Phillips 66 rating

7.2

Company rating: 7.2 out of 10

Based on 87 frontline employees who took The Breakroom Quiz

51st of 86 rated oil and gas companies


Job description

As a 2027 University Intern - Health, Safety and Environment, you will gain hands-on experience through meaningful projects that help build your technical and professional skills at Phillips 66.

Our Health, Safety & Environment (HSE) organization supports our business and operating facilities through regulatory compliance, advocacy, interpretation, and education. Phillips 66 is committed to the health and safety of everyone who works in our facilities and those who live in the communities where we operate or use our products. As such, we conduct our business with care for the environment and strive for world class operating excellence by integrating our Health, Occupational Safety, Process Safety and Environmental principles throughout our businesses with a commitment to continuous improvement.

HSE Interns may expect to:

  • Specialize: Concentrate in one or more functional areas including general accident prevention, personal safety, process safety, occupational health, industrial hygiene, ergonomics, air, water, waste, energy and resource conservation, social responsibility, and regulatory compliance.
  • Learn and Network: Develop technically and professionally by working with experts inside and outside the company.
  • Make An Impact: Assist in the development and production of plans, programs, and procedures guiding company policy and regulatory compliance, safe operations, and prevention of undesired consequences. Assignments may include reviewing and analyzing environmental regulatory requirements for a project or portion of the operation, performing technical calculations, estimations and database management, preparing applications for regulatory approvals or reports, and developing programs, plans and proposals.

Locations may include: Linden, NJ; Borger, TX; Lake Charles, LA; Roxana, IL; Billings, MT; Ponca City, OK; Sweeny, TX.
 

Requirements for a Phillips 66 Internship:
 

Basic/Required:

  • Legally authorized to work in the job posting country
  • Currently enrolled in a Bachelor's or Master's degree program in Industrial Safety, Industrial Hygiene, Health & Safety, Environmental Engineering, Environmental Sciences, or equivalent STEM field of study
  • Greater than 30 hours of earned college credit
  • Pursuing a degree for the duration of the internship
  • Expected to have a graduation date of August 2027 or later
  • Available for a minimum of eleven continuous weeks
  • Depending on the specific position, you must be willing and able, with or without reasonable accommodation, to maintain your face daily so that a respirator/face mask can seal properly (some examples include being free of facial hair and/or clean shaven)
  • Willing and able to obtain a Transportation Worker Identification Card (TWIC). Information can be found at https://www.tsa.gov/for-industry/twic

Preferred Qualifications: 

  • A minimum cumulative GPA of 3.0 on a 4.0 scale
  • Previous internship with Phillips 66
  • Previous internship or co-op participant in related industry
  • Willing to work in any of our operating location
  • Valid driver's license

Compensation Range 

This position has a pay range of $2,017-$3,332 bi-weekly, dependent on a candidate's degree type and expected graduation date.

To apply and be considered:

  • Apply online by going to careers.phillips66.com. and complete the entire application process
  • Attach an electronic copy of your resume
  • Answer all prescreening questions and provide your eSignature

Candidates for regular U.S. positions must be a U.S. citizen or national, or an alien admitted as permanent resident, refugee, asylee or temporary resident under 8 U.S.C. 1160(a)(1). Individuals with temporary visas such as E, F-1, H-1, H-2, L, B, J, or TN or who need sponsorship for work authorization now or in the future, are not eligible for hire.

About Phillips 66

Providing Energy. Improving Lives. We are excited about the future of energy. Our advantaged and nimble company is full of seasoned leadership and talented teams making responsible choices to adapt and explore the opportunities the changing market brings. We do this while living out our values of safety, honor and commitment; improving lives by providing access to the energy which is essential to a high standard of living and health throughout the world. Our employees, suppliers and partners share this vision to provide energy and improve lives. Our hard work, and teamwork, keeps energy flowing. At Phillips 66, we know that now, more than ever, is the time to try new things.

Phillips 66 is an EEO and Affirmative Action Employer of Women/Minorities/Veterans/Individuals with Disabilities


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