HVAC Design Engineer

Location: This role is based out of our Grafton, WI office

Project Coverage: Milwaukee, Madison, and Green Bay metro areas

Job Type: Full-Time

Industry: HVAC / Mechanical Construction

About Us

We are a fast-growing HVAC contractor operating throughout Wisconsin, Illinois, Indiana, and Florida, serving multi-family, commercial, K–12, municipal, hospitality, and other markets. Our company differentiates itself through strong project execution and internal engineering design capabilities, allowing us to successfully deliver design-build and design-assist projects.

With expansion plans across the Midwest and the Southeast, we are building a team of leaders who want to grow with the organization. We value professionals who bring an entrepreneurial mindset, take ownership of their work, and thrive in a dynamic environment.

Position Overview

We are seeking an HVAC Design Engineer who will play a key role in the design, coordination, and execution of HVAC systems for commercial, multifamily, and municipal projects. This position is ideal for a motivated professional with 2–5 years of experience who is eager to expand their technical expertise within a rapidly scaling organization.

The HVAC Design Engineer will collaborate closely with Project Managers, internal engineering staff, field teams, and clients to develop practical, efficient, and code-compliant HVAC system designs.

Responsibilities

• Design HVAC systems including load calculations, equipment selection, ductwork and piping layouts.
• Develop construction documents, drawings, and specifications.
• Perform energy calculations and ensure compliance with applicable codes and standards.
• Coordinate with architects, structural engineers, and other trades.
• Support design-build and plan-spec projects from concept through construction.
• Participate in project meetings and provide technical input.
• Review submittals and assist with RFI responses.
• Conduct site visits as needed to verify field conditions and support project teams.
• Contribute to value engineering and cost-optimization efforts.
• Assist in developing internal engineering standards and best practices.
• Train junior engineers and/or interns.

Required Qualifications

• BS in Mechanical Engineering, Architectural Engineering, or a related field.
• 2–5 years of HVAC design experience.
• Current PE certification or a desire to obtain PE certification.
• Strong understanding of HVAC systems, load calculations, and applicable mechanical codes.
• Strong communication and coordination skills.
• Proficiency in AutoCAD and/or Revit.
• Proficiency in Microsoft Office (Excel, Word, Outlook, Teams).

Preferred Qualifications

• Strong understanding of HVAC systems and mechanical construction practices.
• Experience with commercial, K–12, municipal, or hospitality projects.
• Experience in multifamily projects preferred.
• Experience with public-sector and prevailing wage projects.
• Design-build or design-assist experience.
• PMP, LEED, or similar certifications.
• Familiarity with Wisconsin and Florida codes is a plus.

Travel & Work Environment

• Based out of our Grafton, WI office.
• Supports projects in assigned areas.
• Regular visits to active construction sites.

Compensation & Benefits

• Health, dental, and vision insurance.
• Employer-provided life/AD&D insurance.
• 401(k) with company match.
• Paid time off and paid holidays.
• Coming in 2027: Employer provided Short-Term Disability Coverage.
• Growth-oriented work culture.

This job description in no way states or implies that these are the only duties to be performed by the employee(s) incumbent in this position. Employees will be required to follow any other job-related instructions and to perform any other job-related duties requested by any person authorized to give instructions or assignments. All duties and responsibilities are essential functions and requirements and are subject to possible modification to reasonably accommodate individuals with disabilities. To perform this job successfully, the incumbents will possess the skills, aptitudes, and abilities to perform each duty proficiently. Some requirements may exclude individuals who pose a direct threat or significant risk to the health or safety of themselves or others. The requirements listed in this document are the minimum levels of knowledge, skills, or abilities. This document does not create an employment contract, implied or otherwise, other than an “at will” relationship.