Mechanical Engineer III
Cannon DesignSt. Louis, Missouri
Full Time
Posted February 24, 2026
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Job Description
This position involves designing and managing HVAC systems for various construction projects, including educational, healthcare, and commercial buildings, with responsibilities such as system layout, equipment selection, BIM modeling, project coordination, and site visits, under the guidance of project leadership.
Key Responsibilities
- Design and direct HVAC systems, including ductwork, piping, and equipment selection.
- Assist with plumbing and fire protection system designs as needed.
- Supervise or provide project management within the mechanical discipline, monitoring progress and budgets.
- Calculate heating and cooling loads, and develop system layouts using energy modeling software.
- Create Revit BIM models of HVAC, plumbing, and fire protection systems from schematic to construction phases.
- Specify mechanical equipment such as boilers, chillers, and air handling units.
- Review shop drawings for compliance with specifications and contract documents.
- Conduct site visits to verify conditions and observe construction progress.
- Participate in construction meetings and respond to RFIs and change orders.
Requirements
- Minimum of 6 years of related experience in mechanical design, HVAC systems, or similar fields.
- Current Professional Engineer (PE) license in the United States.
- Experience in performing and directing design of ductwork, piping, and equipment selection for HVAC systems independently on assigned projects.
- Experience in calculating heating and cooling loads, and designing ductwork and piping using energy modeling software.
- Proficiency in preparing Revit BIM modeling of construction drawings for HVAC systems from schematic design to construction administration phases, including layout, sketches, and detail drawings.
- Experience in performing Revit BIM modeling for plumbing and fire protection systems as necessary.
- Ability to review shop drawings for compliance with specifications and contract documents.
- Experience in specifying mechanical equipment such as boilers, chillers, and air handling units.
- Experience in reviewing and editing specifications related to existing or new projects.
- Ability to independently research as needed and respond to emergent issues.
- Experience in interface effectively with clients and project team members, including attending Owner, Architect, Construction Administration (OAC) meetings with an understanding of project budget.
- Experience in responding to RFIs and reviewing change orders in the preparation of construction documents.
- Ability to conduct job site visits to verify existing conditions and observe construction progress, including physical walk-throughs of sites.
- Experience in attending and participating in construction meetings.
- Ability to coordinate work activities on specific projects with several persons at various levels of capability.
- Excellent verbal and written communication skills.
- Experience in computer applications for engineering design programs such as Revit, Trane Trace, or Trane 3D Plus.
Benefits & Perks
Compensation/salary range not specified
Work schedule not specified
Work environment perks not specified
Equal opportunity employment
Support for diversity, equity, and inclusion initiatives
Mandatory compliance and internal policy training
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