Mechanical Engineer Intern

ARCO National Holdings•Richmond Heights, MO
•Onsite

About The Position

ARCO is seeking a Mechanical Engineer Intern to join its team in St. Louis (Richmond Heights). The intern will assist with the design and engineering of HVAC and mechanical systems from concept through construction. The role suits a proactive problem solver who works collaboratively and brings technical knowledge and a practical mindset to projects. The internship includes travel to jobsites, an intern training program, direct access to leaders, and two formal reviews intended to enhance learning opportunities. The posting also describes opportunities for overtime, a potential path to full-time employment after graduation, and other compensation and engagement offerings.

Requirements

  • Be enrolled in a Civil or Mechanical bachelor's degree program.
  • Have a minimum GPA of 3.0 out of 4.0.
  • Have excellent verbal and written communication skills and a strong work ethic.

Nice To Haves

  • Previous internship or co-op construction experience.

Responsibilities

  • Assist with the design and engineering of HVAC and mechanical systems from concept through construction.
  • Travel to jobsites.

Benefits

  • Competitive hourly rate, with overtime possible
  • Housing stipend based on need
  • Internship hours count toward ESOP eligibility
  • End-of-term performance bonus based on merit
  • Path to a 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
  • Two formal reviews during the internship
  • Engagement events
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service