Mechanical Engineer - St. Louis, MO

Solutions AEC LLC•Saint Louis, MO
•$60,000 - $90,000

About The Position

Solutions AEC, a Design/Build-focused Engineering, Commissioning, and Consulting firm, is seeking a Mechanical Engineer to help advance building systems. The role is intended for someone with 0–5 years of experience who is eager to learn, solve real-world challenges, and grow alongside an experienced team. The company combines engineering fundamentals with innovative thinking, emerging technology, and continuous improvement, including thoughtful use of AI and digital tools while maintaining sound engineering judgment. The Mechanical Engineer assists with HVAC and plumbing system design and layout, prepares design and construction documents, documents existing conditions through site surveys, and applies quality-control practices. The role involves collaboration with engineers, architects, contractors, and other disciplines, as well as support for submittals, estimates, procurement, site visits, and client meetings. The position offers hands-on experience, mentorship, training, and opportunities to develop technical expertise. The position is based in St. Louis, Missouri; the posting does not specify a workplace type.

Requirements

  • Bachelor’s degree in Mechanical Engineering or Architectural Engineering.
  • 0–5 years of relevant experience in building systems design, construction, or a related field.
  • Ability to work with supervision while taking ownership of assigned responsibilities and contributing effectively as part of a project team.
  • Strong problem-solving, communication, time-management, and organizational skills.
  • Curiosity about AI, automation, and emerging technologies, with a willingness to learn and thoughtfully apply new tools to engineering workflows.

Nice To Haves

  • Experience with Revit, AutoCAD, and Trane TRACE 3D or similar load calculation software is desired.
  • Experience with HVAC and plumbing system design.
  • Knowledge of energy modeling and LEED documentation.
  • Experience with Design/Build projects and commissioning support.

Responsibilities

  • Assist with the design and layout of HVAC and plumbing systems for a variety of projects.
  • Produce design and construction documents using Revit, BIM, and other engineering design tools.
  • Conduct site surveys to document existing conditions and identify installation deficiencies.
  • Apply quality-control practices to help ensure designs and deliverables meet project requirements.
  • Collaborate with engineers, architects, contractors, and other disciplines throughout project delivery.
  • Assist with submittals, bid estimates, equipment procurement, site visits, and client meetings as needed.
  • Explore and responsibly use AI, automation, and emerging digital tools to improve workflows, productivity, and project delivery while applying sound engineering judgment.
  • Develop technical expertise through hands-on experience, mentorship, training, and continuous learning.

Benefits

  • Competitive salary and a standout benefits package.
  • 100% company-paid health insurance premiums for employees.
  • 401(k) with company contributions.
  • Generous vacation and PTO.
  • A four-week paid sabbatical every five years.
  • Flexible work schedule to support work-life balance.
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