Mechanical Engineer - Commercial HVAC & Mechanical Construction

Mechanical Engineer – Commercial HVAC & Mechanical Construction

State Mechanical Services | A MechanAir Company

Location: 535 Exchange Ct., Aurora, IL 60504 | Commercial projects throughout Chicagoland

Base Salary: $78,000–$125,000

ROLE OVERVIEW

State Mechanical Services (SMS) is seeking a Mechanical Engineer to design and support the technical execution of commercial HVAC and mechanical systems from concept through coordinated construction, startup, commissioning, and closeout. In our design-build and design-assist environment, you will work with project management, BIM/VDC, estimating, and field teams to advance constructability, system performance, field execution, customer outcomes, and project economics.

The position may be filled at a developing, experienced, or Senior Mechanical Engineer level. Level and scope reflect relevant experience, technical capability, independence, commercial HVAC/mechanical construction expertise, scope of responsibility, and professional licensure where applicable—not years of experience alone.

KEY RESPONSIBILITIES

• Design commercial HVAC, hydronic, and mechanical systems; perform HVAC load calculations, system sizing, equipment selection, controls coordination, technical analysis, and code review.


• Develop and review mechanical drawings, specifications, permit and construction documents, submittals, RFIs, design changes, equipment substitutions, and supporting technical documentation.


• Use Revit, AutoCAD, and BIM/VDC tools to coordinate multidisciplinary designs and models, resolve clashes, and translate engineering intent into constructible field solutions.


• Evaluate alternatives for system performance, constructability, labor, materials, equipment, schedule, cost, and technical risk.


• Coordinate technical execution with project management, estimating, BIM/VDC, field teams, vendors, and customers from design through installation.


• Provide field engineering through site reviews, startup, commissioning, troubleshooting, and closeout; verify installed systems meet design intent.


• Produce accurate, timely, coordinated, and code-compliant work that supports quality, field productivity, and reliable system performance.


• At the senior level, independently solve complex technical problems, identify risk early, guide engineering work, and communicate tradeoffs and recommendations.

WHAT SUCCESS LOOKS LIKE

Accurate, code-compliant, and constructible mechanical solutions that reduce rework, improve field productivity, protect project economics, and deliver reliable HVAC system performance.

REQUIRED QUALIFICATIONS

• Bachelor’s degree in Mechanical Engineering or a closely related engineering discipline.


• Demonstrated capability in HVAC design, mechanical systems, engineering calculations, equipment selection, and construction documentation.


• Working knowledge of applicable mechanical, energy, building, and other relevant codes and engineering standards.


• Proficiency with Revit and AutoCAD and the ability to work effectively within BIM/VDC coordination processes.


• Ability to produce accurate, coordinated work, manage priorities, document decisions, and meet project deadlines.


• Clear technical communication and effective collaboration across office, field, vendor, and customer teams.


• Sound judgment in identifying technical risk, evaluating tradeoffs, and resolving problems appropriate to assigned level.

PREFERRED QUALIFICATIONS

• Commercial HVAC or commercial mechanical construction experience in a design-build or design-assist environment.


• Field engineering, constructability, commissioning, or mechanical project engineering experience.


• EIT certification preferred for developing engineers; PE licensure preferred for senior-level candidates.

COMPENSATION & BENEFITS

Base Salary: $78,000–$125,000. Final compensation is based on experience, qualifications, technical capability, position level, scope of responsibility, professional licensure where applicable, and other lawful business factors.

Benefits include medical coverage with Cigna PPO and HSA options; Guardian dental and vision coverage; telehealth and preventive care; Employee Assistance Program (EAP); 401(k) with company contribution; company-paid life and AD&D insurance; voluntary life insurance options; company-paid short-term disability; supplemental coverage options; paid time off; company-paid holidays; employee discount marketplace; and wellness and support resources.

Benefits begin the first of the month following date of hire for eligible employees working 32 or more hours per week. Full plan details and eligibility requirements apply.

WHY JOIN US

• Engineer systems that are coordinated, constructed, commissioned, and proven in the field—not limited to consulting deliverables.


• Influence constructability, quality, schedule, field productivity, cost, and long-term system performance.


• Work across the full project lifecycle with experienced construction, BIM/VDC, estimating, and field professionals.


• Grow from developing engineer to senior technical contributor as capability, judgment, and scope expand.


• Apply modern design and coordination tools to reduce risk, prevent rework, and improve project outcomes.

If you’re an engineer who wants to connect technical design with how commercial HVAC systems are coordinated, constructed, and commissioned, we want to hear from you.

Apply today to help engineer HVAC systems that perform—from design through installation and commissioning.

Equal Opportunity Employer: State Mechanical Services is an equal opportunity employer and considers applicants without regard to any characteristic protected by applicable federal, state, or local law.