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Application Engineer (HVAC)

Critical Systems
Rockville, MD Full Time
POSTED ON 8/26/2026
AVAILABLE BEFORE 9/24/2026

Job Summary:

The Applications Engineer is responsible for providing technical support for sales team members and clients in both the acquisition and fulfillment stages of equipment projects. This position requires strong customer service skills, learned technical knowledge of commercial HVAC systems, and problem-solving skills to ensure accurate equipment delivery in a given time frame with limited resources.


Duties and Responsibilities:

  • Provides technical support to sales engineers, consulting engineers, contractors or technical buyers for system and product selection, design and pricing during the design and fulfillment stages.
  • Responsible for the take-off, optimization/validation of the equipment to include selection of size, configuration, voltage, options, etc. of the HVAC equipment by reviewing the plans and specifications.
  • Prepares proposals and pricing breakdowns while evaluating equipment savings.
  • Develops preliminary and/or final submittals as required for timely production release and delivery of equipment.
  • Performs periodic job site visits as needed.
  • Maintains an accurate, organized and up to date library and database of technical information allowing easy accessibility to information for a timely resolution to customer questions, inquiries and requests.
  • Responsible for holding job meetings such as; cost reviews, submittals and pre-release meetings.
  • Coordinates service and technical support during start-up and throughout the warranty period.
  • Meets deadlines for proposals, submittals, equipment release and other assigned tasks.
  • Simultaneously handles a large and diverse number of projects and issues with tact, cooperation and persistence.
  • Flexibility to work outside normal work hours, as required.

Required Qualification:

  • Bachelor’s degree in Mechanical Engineering (HVAC), Civil Engineering, or Construction management or Engineering Technology, or other related technical areas
  • Two (2) to three (3) years of experience in the HVAC industry in applications or inside sales.
  • Strong mechanical and technical aptitude to develop an in-depth knowledge of our product offerings.
  • Excellent verbal and written communication skills are required.
  • Working knowledge of Microsoft Office, Web-enabled applications and intermediate level experience with Excel.
  • Ability to thrive in a fast paced environment.
  • Work independently with minimal direction.


Benefits at Critical Systems LLC:

  • Medical, Dental, and Vision Insurance
  • 401(k) with matching and profit sharing
  • Generous Paid Time Off (PTO)
  • Competitive salary with performance-based incentives
  • Opportunities for professional development and continuous learning
  • Collaborative, growth-oriented team culture
  • Employee Assistance Program


Critical Systems LLC is an Equal Opportunity Employer

Salary.com Estimation for Application Engineer (HVAC) in Rockville, MD
$95,905 to $120,782
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