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Intern Project Engineer Jobs in O Fallon, MO (NOW HIRING)

Russell Co

Project Engineer

Saint Louis, MO · On-site

How You'll Contribute As Project Engineer you will help us reach our strategic growth goals by ... Industry Intern/Coop experience preferred. Thorough knowledge of all aspects of construction ...

New

Solutions AEC LLC

Electrical Intern

Saint Louis, MO · On-site

$18 - $20/hr

As an Electrical Engineering Intern with SAEC, you will gain hands-on experience working on a variety of exciting projects. You'll support our senior engineers and designers in tasks that range from ...

Safe Fleet

Firmware Engineer Intern

Saint Louis, MO · On-site

The Firmware Engineer Intern is primarily responsible for providing technical excellence in ... Support the work of other engineers on project teams. * Participate in technical reviews (code ...

Safe Fleet

Firmware Engineer Intern

Saint Louis, MO · On-site

The Firmware Engineer Intern is primarily responsible for providing technical excellence in ... Support the work of other engineers on project teams. * Participate in technical reviews (code ...

Solutions AEC LLC

Mechanical Intern

Saint Louis, MO · On-site

$18 - $20/hr

As a Mechanical Engineering Intern at SAEC, you'll be an integral part of our dynamic engineering team. You'll gain hands-on experience, contributing to real-world projects and working alongside ...

Leonardo DRS

Quality Software Engineer Intern

Bridgeton, MO · On-site

$41K - $53K/yr

Job Summary Leonardo DRS Land Systems is seeking a Summer Quality Engineer Intern for our Bridgeton ... Review key project deliverables to verify alignment with quality requirements * Conduct limited ...

Leonardo DRS

Electrical Engineer Intern

Bridgeton, MO · On-site

$41K - $53K/yr

Job Summary Leonardo DRS Land Systems is seeking a Summer Electrical Engineer Intern for our ... Position will be working on various projects that may include skills with Electrical Analysis ...

Leonardo DRS

Electrical Engineer Intern

Bridgeton, MO

$41K - $53K/yr

Job Summary Leonardo DRS Land Systems is seeking a Summer Electrical Engineer Intern for our ... Position will be working on various projects that may include skills with Electrical Analysis ...

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Showing results 1-20

All JobsIntern Project Engineer JobsIntern Project Engineer Jobs in O'Fallon, MO

Intern Project Engineer information

See O Fallon, MO salary details

$10

$18

$27

How much do intern project engineer jobs pay per hour?

As of Aug 15, 2026, the average hourly pay for intern project engineer in O'Fallon, MO is $18.07, according to ZipRecruiter salary data. Most workers in this role earn between $15.05 and $19.57 per hour, depending on experience, location, and employer.

What types of projects and responsibilities can I expect as an intern project engineer?

As an Intern Project Engineer, you can expect to assist in coordinating engineering project activities, such as preparing technical documentation, supporting senior engineers with design or site visits, and tracking project progress. Interns often work alongside multidisciplinary teams, gaining exposure to project management processes, client communication, and problem-solving in real-world scenarios. The role is hands-on and offers valuable experience in applying engineering principles, making it a great stepping stone for a full-time engineering career.

What are the key skills and qualifications needed to thrive as an intern project engineer, and why are they important?

To thrive as an Intern Project Engineer, you need a foundational knowledge in engineering principles, problem-solving abilities, and academic progress toward a relevant engineering degree. Familiarity with CAD software, project management tools, and basic understanding of industry-specific codes or standards is often expected. Strong communication, teamwork, and a willingness to learn help you stand out in collaborative project environments. These skills and qualities are crucial for effectively supporting project teams, learning on the job, and contributing to successful project outcomes.

What is the difference between Intern Project Engineer vs Project Engineer?

AspectIntern Project EngineerProject Engineer
QualificationsEnrolled in or recent graduate of engineering or related programBachelor's degree in engineering or related field, some experience
Work EnvironmentSupport role, learning-focused, supervised by senior staffResponsible for project planning, coordination, and execution
ResponsibilitiesAssisting with tasks, gaining industry knowledgeManaging project phases, liaising with teams and clients

The Intern Project Engineer role is an entry-level, learning position for students or recent graduates, focusing on support and skill development. The Project Engineer is a more experienced role with responsibilities for managing parts of projects, requiring relevant education and some experience. Both roles are common in engineering industries, but they differ mainly in experience level and scope of responsibilities.

What does an intern project engineer do?

An Intern Project Engineer supports engineering teams by assisting in the planning, design, and execution of projects. Typical tasks may include preparing project documentation, coordinating between departments, conducting site visits, and performing data analysis. The role is designed to give students or recent graduates practical experience in engineering project management while working under the supervision of experienced engineers. Intern Project Engineers learn industry standards, develop technical skills, and gain insight into the project's lifecycle from conception to completion.

What cities near O'Fallon, MO are hiring for Intern Project Engineer jobs?

Cities near O'Fallon, MO with the most Intern Project Engineer job openings:

Intern Project Engineer jobs near you
Infographic showing various Intern Project Engineer job openings in O'Fallon, MO as of August 2026, with employment types broken down into 85% Full Time, 11% Part Time, and 4% Contract. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution, with an average salary of $37,582 per year, or $18.1 per hour.

Project Engineer Intern

Midwest Insulation

Maryland Heights, MO

$16.25 - $21/hr

Internship

Retirement

Posted 3 days ago

New

Job description

Midwest Insulation is hiring a Project Engineer Intern to support our team. Are you a Construction Management student ready to jumpstart your career? Join our estimating team as a Project Engineer Intern and gain hands-on experience with projects ranging from renovations to large-scale commercial builds.
As a Project Engineer Intern, you will support our Preconstruction and Project Management Teams in preparing accurate and detailed cost estimates and executing a variety of projects. You’ll work closely with team members to understand project scopes, develop takeoffs, and help create bid packages, while also learning to carry out a variety of project management responsibilities.
This is a great opportunity to apply what you’ve learned in school and develop your skills in real-world construction estimation and project management.
This role will run for at least 10 weeks at 15 - 25 hours per week with potential for renewal.
Why Work With Us

Midwest Insulation has been a trusted name in the insulation industry. As a union contractor, we take pride in delivering high-quality solutions for commercial and residential projects throughout St. Louis, MO and surrounding areas.

We deliver Building Performance Solutions, expert installation, and exceed customer expectations. Here, initiative is encouraged, innovation thrives, and collaboration feels like family. With the right tools, training, and support, we empower every team member to grow, succeed, and build a rewarding career.

Our Values in Action
Our core values guide everything we do — shaping how we work, grow, and succeed together:
  • Drive to Win – We set high standards and take pride in delivering exceptional results.
  • Deliver Beyond Expectations – We go the extra mile to ensure quality, safety, and client satisfaction.
  • Step Up amp; Take Ownership – Every team member is empowered to take initiative and make an impact.
  • Strive to Innovate – Continuous learning and problem-solving keep us at the forefront of our industry.
  • We Are Family – Respect, trust, and teamwork define our workplace culture.
At Midwest Insulation, you’re more than an employee — you’re part of a team committed to building excellence together.
Key Responsibilities Include:
  • Assist on projects of varying size and complexity
  • Review plans, specifications, and related documents
  • Prepare quantity takeoffs and preliminary estimates
  • Help prepare bid packages and manage bid documentation
  • Support clear and complete handoffs of estimates to the sales and project management teams
  • Read and interpret architectural drawings
  • Input project data into Plan Swift and Excel
  • Compose and track RFIs
  • Assist in reviewing subcontractor proposals
  • Ensure timely and complete estimate submissions
  • Assist with project management tasks
Working Conditions:
  • Work Environment: Primarily office-based, with occasional site visits to active construction projects.
  • Schedule: Flexible hours during standard business days (Monday–Friday), with accommodations for academic schedules.
  • Location: This role is based at our Maryland Heights, MO location.
  • Physical Requirements: Ability to sit or stand for extended periods, work at a computer, and review both physical and digital construction documents.
Qualifications
Required:
  • Currently enrolled in a college/university program pursuing a Bachelor’s degree in Construction Management or a related field (e.g., Civil Engineering, Architecture, Building Science)
  • Strong interest in construction, preconstruction and/or estimating
  • Familiarity with blueprint reading and drafting
  • Detail-oriented with strong analytical skills
  • Comfortable working both independently and within a team
  • Strong communication and organizational abilities
Preferred:
  • Experience or coursework using PlanSwift, Excel, Outlook and Adobe PDF
The Midwest Advantage
When you join our team, you’re not just taking a job — you’re investing in your future. We offer professional growth, industry-leading training, and a supportive environment built on trust, teamwork, and excellence. What you'll gain:
  • Competitive pay
  • 401(k) retirement plan with company match
  • Consideration for a return engagement based on performance.
  • Opportunities for career growth in the rapidly expanding energy efficiency industry
Here you’re more than an employee; you are part of a team building excellence together.

Apply