Commercial Sales Engineer (HVAC)

Kettle Moraine Heating & Air Conditioning, LLC; Delafield (WI); On-site; USD 90,000 - 130,000; Full time

Job summary

Kettle Moraine Heating & Air Conditioning, LLC is seeking a Commercial Sales Engineer to lead complex HVAC projects from concept through completion in Southeast Wisconsin. You will design and specify systems, serve as a technical advisor, and collaborate with sales, project management, and field teams to deliver cost-effective, code-compliant solutions.

The role emphasizes proposal-driven leadership, energy efficiency, and adherence to ASHRAE standards, with opportunities to influence project

Qualifications

• Bachelor’s Degree in Mechanical Engineering or related field (preferred).
• Clean driving record with valid license.
• Organized and able to manage multiple projects.
• Strong communication and collaboration skills.
• Knowledge of building codes and mechanical standards.
• Experience with Lennox, Carrier or Mitsubishi a plus.

Responsibilities

• Perform load calculations and energy analysis for HVAC sizing.
• Design HVAC systems including ductwork, piping, and controls.
• Prepare detailed drawings, specifications, and equipment schedules.
• Collaborate with project managers, estimators, and installation teams to ensure designs are fully executable and cost-efficient.
• Stay updated with local building codes, ASHRAE standards, and energy codes.
• Provide technical support during construction and installation phases, including jobsite visits.
• Participate in value engineering and design-build projects to maximize system performance and client value.
• Recommend energy-saving upgrades or alternative system designs.
• Support the development of internal standards, templates, and best practices.

Skills

Load Calculations

HVAC Design

Communication

Project Management

Problem Solving

Code Knowledge

Education

Bachelor’s in Mechanical Engineering

Job description

Ready to take your HVAC expertise to the next level—without the physical demands of fieldwork? Kettle Moraine Heating & Air Conditioning is looking for a knowledgeable and motivated Commercial Sales Engineer to join our growing team! At KMH, we support each and every employee in their professional and personal journey. We’re a family-owned home services company serving Southeast Wisconsin with 190+ employees.

This is your opportunity to transition into a leadership-focused, technically rewarding role where you’ll make a real impact—guiding complex commercial HVAC projects from concept through completion. Reporting directly to the Commercial Sales Manager, you'll work alongside our sales, project management, and field teams to develop innovative solutions that are energy-efficient, code-compliant, cost-effective, and built to perform.

In this role, you’ll be responsible for designing and specifying systems—including RTUs, UAUs, boilers, forced air, and geothermal—to ensure flawless execution and total client satisfaction. You’ll serve as a trusted technical advisor, helping turn customer needs into engineered solutions while supporting project success at every step.

At Kettle Moraine, we do it all—and we do it well. Join a best-in-class team that values your experience, supports your growth, and gives you the tools to thrive in the next phase of your HVAC career.

Responsibilities:

• Perform load calculations and energy analysis for HVAC system sizing
• Design HVAC systems including ductwork, piping, and controls
• Prepare detailed drawings, specifications, and equipment schedules
• Collaborate with project managers, estimators, and installation teams to ensure designs are fully executable and cost-efficient.
• Select equipment and materials based on project requirements and best engineering practices.
• Stay updated with local building codes, ASHRAE standards, and energy codes.
• Provide technical support during construction and installation phases, including jobsite visits.
• Participate in value engineering and design-build projects to maximize system performance and client value.
• Recommend energy-saving upgrades or alternative system designs.
• Support the development of internal standards, templates, and best practices.

Job Requirements:

• Bachelor’s Degree in Mechanical Engineering or a related field (preferred)
• Clean driving record with valid license
• Organized
• Strong communication, collaboration, and problem-solving skills
• Strong knowledge of building codes and mechanical standards
• Ability to manage multiple projects and meet deadlines
• Lennox, Carrier and Mitsubishi experience a plus

This is a full-time role Monday–Friday. Occasional overtime may be needed during peak periods.