Top 60 Mechanical hvac/plumbing engineer Jobs in St. Louis, Mo

Project Engineer Mechanical Construction
Airco Service Company —Troy, IL
- $55,000 - $70,000 a year
- Overtime
- Microsoft Excel
- Construction site
- Mid-level
- Paid training
- Paid holidays
Quick Apply
Building Engineer
Colliers International —St. Louis, MO
- Full-time
- Microsoft Excel
- Microsoft Outlook
- Customer service
Senior Commercial HVAC/Refrigeration Technician
The Cigna Group —St. Louis, MO
- Online Application
- Microsoft Excel
- Microsoft Outlook
- Computer literacy
Lead Building Engineer
Colliers International —St. Louis, MO
- Full-time
- Microsoft Excel
- Microsoft Outlook
- 5 years
Mechanical Designer/Engineer
TechniPower, Inc. —Fenton, MO
- Mid-level
- Bachelor's degree
- 2 years
Quick Apply
Building Engineer
US AMR-Jones Lang LaSalle Americas, Inc. —St. Louis, MO
- Online Application
- 5 years
- High school diploma or GED
- US work authorization
- Paid parental leave
- Paid holidays
Quick Apply
5h
Commissioning Engineer & Mechanical Project Manager (Specialized Critical Facilities) - Enterprise Physical Operations
Washington University in St. Louis —St. Louis, MO
- $84,200 - $148,500 a year
- Online Application
- Construction site
- 5 years
- Writing skills
- Commuter assistance
- Employee assistance program
Mechanical HVAC/Plumbing Engineer
Donohue & Associates —St. Louis, MO
- 5 years
- Senior level
- Professional Engineer
- Profit sharing
- Paid holidays
Mechanical II
CannonDesign —St. Louis, MO
- $70,737 - $83,220 a year
- Remote
- Construction site
- Engineering
- Research
- Health insurance
- Dental insurance
12d
Mechanical Design Engineer (HVAC/R & Plumbing) - NDBS
Kelso Industries —St. Louis, MO
- Full-time
- Schematics
- 5 years
- System design
- Opportunities for advancement
Quick Apply
Project Mechanical V
CannonDesign —St. Louis, MO
- $115,045 - $143,830 a year
- Remote
- Construction site
- Engineering
- Business development
- Health insurance
- Dental insurance
12d
Project Manager -Construction to Installations of Medical Imaging Equipment - St Louis, MO
Siemens Healthineers —St. Louis, MO
- $89,220 - $122,672 a year
- Full-time
- Current TB test
- Construction site
- Hospital
- Disability insurance
- Health insurance
3d
Mechanical Engineer III
RTM Engineering Consultants, LLC —St. Louis, MO
- $85,000 - $115,000 a year
- 5 years
- Engineering
- Research
- Profit sharing
- Paid training
Quick Apply
Mechanical III
CannonDesign —St. Louis, MO
- 6 years
- Construction site
- Engineering
Senior Mechanical Engineer
Horner & Shifrin, Inc. —St. Louis, MO
- $110,000 - $145,000 a year
- Online Application
- Background check
- Microsoft Excel
- Microsoft Outlook
- Paid parental leave
- Parental leave
Quick Apply
Mechanical Design Engineer
National Design Build Services —Maryland Heights, MO
- Full-time
- Schematics
- 5 years
- Mid-level
- Opportunities for advancement
Quick Apply
Senior Mechanical Engineer - Consumer & Life Solutions (Multiple Locations)
Burns & McDonnell —St. Louis, MO
- $135,000 - $210,000 a year
- Full-time
- 6 years
- Construction site
- Office
- 401(k)
- Employee stock ownership plan
Mechanical Engineer - Aviation/Airport Terminal Construction
Kwame Building Group, Inc. —Bridgeton, MO
- Construction site
- System design
- Mid-level
Quick Apply
2d
Mechanical Designer
Vestal Corporation —St. Louis, MO
- Full-time
- Mid-level
- Office
- Quality control
Quick Apply
Director of Mechanical Engineering
Vestal Corporation —St. Louis, MO
- $165,000 - $190,000 a year
- Full-time
- Office
- Quality control
- Travel
Quick Apply

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mechanical hvac/plumbing engineer jobs near st. louis, mo

Project Engineer Mechanical Construction

Airco Service Company -
Troy, IL

Quick Apply

Job Details

Full-time
$55,000 - $70,000 a year

Benefits

Paid training
Paid holidays
Health insurance
Dental insurance
Paid time off
Vision insurance
401(k) matching

Qualifications

Bachelor's degree in mechanical engineering
CAD software
Bluebeam Revu
Project engineering
Microsoft Excel
Construction material procurement
Coordinating with subcontractors on construction projects
Construction safety management
Bachelor's degree in construction management
Mechanical Engineering
Filing
OSHA 10
Mid-level
Utility locating experience for construction industry
Occupational Safety And Health Administration Outreach Training Program 30-Hour
Schedule management
Records management
Job order costing
HVAC
Compliance documentation
Construction document control
Construction stakeholder communication
Construction permits
Safety records management
Productivity software
Construction submittals
Commercial building projects
Microsoft Project
Construction vendor management
Ordering supplies

Full Job Description

Benefits:

401(k) matching
Competitive salary
Dental insurance
Health insurance
Paid time off
Vision insurance

Project Engineer – Mechanical Construction
Airco MEP – Troy, Illinois
Full-Time | In-Office / On-Site

Compensation & Benefits
Base salary: $55,000–$70,000, depending on experience
Comprehensive benefits package
PTO and paid holidays
Training and development opportunities
Long-term growth path into Project Management and/or Estimating

Who We Are

Airco MEP is a leading commercial mechanical contractor based in Troy, Illinois, serving customers across the Metro East and Greater St. Louis market. We support complex mechanical construction projects with a focus on safety, quality, responsiveness, and accountability.

We operate with a hands-on team approach and are looking for people who are willing to learn, take ownership, and support projects from planning through closeout.

The Role

We are hiring a Project Engineer – Mechanical Construction to support our Project Managers across active commercial mechanical projects. This is an early-career role for someone who is hungry, detail-oriented, coachable, and interested in growing into a Project Manager and/or Estimator over time.

The ideal candidate will typically have 2–5 years of experience supporting construction projects, preferably in mechanical construction. We will also consider entry-level candidates with a relevant four-year degree, such as Construction Management, Mechanical Engineering, or a related field, if they have strong internship, co-op, field, or project exposure.

What You’ll Do

Manage and track submittals, product data, RFIs, closeout documents, and project logs
Assist with takeoffs, quantities, job costing, and estimating support as needed
Support purchasing, including material ordering, lead times, delivery coordination, and vendor follow-up
Help build and maintain project documentation, files, turnover packages, and closeout materials
Support job planning and scheduling; Microsoft Project exposure is a plus
Assist with permits, utility locates, and related project documentation as needed
Create and maintain safety documentation, including safety plans, crane plans, and compliance records
Attend job walks when needed, take photos, capture detailed notes, and verify field conditions
Measure and verify field conditions to support mechanical, piping, plumbing, and HVAC coordination
Use tools such as Bluebeam; AutoCAD familiarity is a plus for mechanical coordination work
Communicate professionally with project managers, field leaders, vendors, subcontractors, general contractors, and customers

What We’re Looking For

2–5 years of experience supporting construction projects, preferably in mechanical construction, HVAC, plumbing, piping, or commercial construction
Or a relevant four-year degree in Construction Management, Mechanical Engineering, or a similar field with internship, co-op, field, or project experience
Comfortable around jobsites and able to communicate professionally with field teams
Strong proficiency with Microsoft Office, especially Excel and Word
High attention to detail, strong follow-through, and the ability to stay organized across multiple priorities
Ability to manage a mixed workload, including submittals, purchasing, permits, job walks, documentation, and project support
Coachable, adaptable, team-oriented, and willing to learn how Airco MEP runs work
Interest in long-term growth into Project Management and/or Estimating

Preferred Qualifications

Bluebeam experience
Microsoft Project experience or coursework
OSHA coursework or certifications, such as OSHA-10 or OSHA-30
AutoCAD familiarity, especially for piping, plumbing, HVAC, or mechanical coordination
Mechanical construction background through internships, field exposure, trade experience, or related coursework
Existing familiarity with the Metro East / Greater St. Louis construction market

Work Environment / Location

This is an in-office / on-site role based in Troy, Illinois, with local travel to project sites, job walks, and customer or project meetings across the Metro East and Greater St. Louis market.

Apply Today

If you are detail-oriented, coachable, comfortable around construction projects, and interested in building a long-term career in mechanical construction project management or estimating, we would like to hear from you.

Quick Apply

Refine Your Search

mechanical hvac/plumbing engineer jobs in st. louis, mo

Project Engineer Mechanical Construction

Building Engineer

Senior Commercial HVAC/Refrigeration Technician

Lead Building Engineer

Mechanical Designer/Engineer

Building Engineer

Commissioning Engineer & Mechanical Project Manager (Specialized Critical Facilities) - Enterprise Physical Operations

Mechanical HVAC/Plumbing Engineer

Mechanical II

Mechanical Design Engineer (HVAC/R & Plumbing) - NDBS

Project Mechanical V

Project Manager -Construction to Installations of Medical Imaging Equipment - St Louis, MO

Mechanical Engineer III

Mechanical III

Senior Mechanical Engineer

Mechanical Design Engineer

Senior Mechanical Engineer - Consumer & Life Solutions (Multiple Locations)

Mechanical Engineer - Aviation/Airport Terminal Construction

Mechanical Designer

Director of Mechanical Engineering

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