Mechanical Engineer Intern
ARCO National · Richmond Heights
ABOUT YOU
We are looking for a Mechanical Engineer Intern to join our growing team in St. Louis (Richmond Heights). You will assist with the design and engineering of HVAC and mechanical systems from concept through construction. The ideal candidate is a proactive problem solver who thrives in a collaborative environment and brings both technical knowledge and a practical mindset to each project.
A DAY IN THE LIFE
At ARCO, we are committed to taking care of our greatest asset – our team. ARCO’s best-in-class benefits and superior compensation are what set us apart from the competition and continue to attract top industry talent.
- Competitive hourly rate (with overtime possible)
- Housing stipend (based on need)
- Internship hours count towards our ESOP eligibility
- End-of-term performance bonus based on merit
- Path to full time position
- Sign-on bonus for each term served if hired as a full-time associate following graduation
- Direct access to leaders
- Intern training program to learn real world skills
- 2 formal reviews during your Internship to enhance learning opportunities
- Traveling to jobsites
- Engagement events
NECESSARY QUALIFICATIONS
- Enrolled in Civil or Mechanical Bachelor’s degree program
- Minimum Grade Point Average of 3.0 out of 4.0
- Previous Internship or Co-op construction experience preferred
- Excellent verbal and written communication skills and a strong work ethic
WHAT WE CAN OFFER YOU
At ARCO, we are committed to taking care of our greatest asset – our team. ARCO’s best-in-class benefits and superior compensation are what set us apart from the competition and continue to attract top industry talent.
- Competitive hourly rate (with overtime possible)
- Housing stipend (based on need)
- Internship hours count towards our ESOP eligibility
- End-of-term performance bonus based on merit
- Path to full time position
- Sign-on bonus for each term served if hired as a full-time associate following graduation
- Direct access to leaders
- Intern training program to learn real world skills
- 2 formal reviews during your Internship to enhance learning opportunities
- Traveling to jobsites
- Engagement events
MAKE YOUR MOVE
We are proud to be one of the fastest-growing, privately-owned companies in America, celebrating over 30 years of experience as design-build experts. We have completed over 7,500 design-build projects nationwide. We ranked #9 on ENR’s Design-Build Firms list and #34 on ENR's Top 400 Contractors list of 2026. Most importantly, our clients like us, trust us, and want to do business with us. We are looking for people with the same enthusiasm, passion, and respect for the hard work that brought us to where we are today. Are you a person who can make a difference at ARCO? If the answer is “Yes!” we look forward to meeting you.
ARCO does not accept unsolicited resumes from individual recruiters or third-party recruiting agencies without pre-approval from ARCO’s Human Resources team. Pre-approval is required before any external candidate can be submitted. ARCO will not be responsible for fees related to unsolicited resumes and for candidates who are sent directly to our hiring managers. Agencies must have a fully executed vendor agreement in place as well as written approval to submit candidates from an ARCO TA Manager for a specific position before submitting candidates.
LEGAL DISCLAIMER
EOE, including disability/vets
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