Project Engineer Mechanical Construction

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.