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HVAC Principal Design Engineer

Tech Army, LLC
Greenville, SC Full Time
POSTED ON 7/9/2026
AVAILABLE BEFORE 8/31/2026

Job Description

The purpose of this position is to provide the essential administrative processes, technical knowledge and leadership as described below. This position has oversight of a specific project area and acts as a representative of the engineering discipline ensuring technical accuracy in project execution in all phases. This is a lead position on assigned projects performing engineering assignments of advanced complexity.

Responsibilities

  • Under general supervision of the Discipline Lead Engineer, serve as a Supervising Lead providing guidance/supervision to other engineers and designers.
  • Analyze and make independent recommendations regarding technical solutions to problems of advanced complexity in accordance with project requirements.
  • Develop and review specifications and design criteria.
  • Perform and check engineering analyses and calculations; specify materials, equipment and systems; and solve technical problems of advanced complexity.
  • Coordinate technical issues with other disciplines, project management, vendors and clients.
  • Execute work in compliance with Project Quality Plan and procedures.
  • Execute work in accordance with the approved project scope, cost and schedule baselines.
  • Develop and review estimates, schedules and progress reports including effort-hour estimating and staff forecasting.
  • Establish, control and report on material key quantities; provide analysis and forecasts.
  • Provide technical support to activities associated with equipment and material procurement and subcontracting including scopes of work, technical bid evaluations and review of vendor submittals.
  • Provide technical support to activities associated with construction administration including response to construction requests-for-information and field changes.
  • Other duties as assigned.


Basic Job Requirements

  • U.S. Citizenship required.
  • Bachelor of Science degree in Mechanical Engineering and minimum fifteen (15) years of work-related experience.
  • Working knowledge of applicable federal (including Department of Energy orders), state, and local codes and standards.
  • Ability to communicate effectively with audiences that include but are not limited to project management, coworkers, clients, vendors, and subcontractors.
  • Job related technical knowledge necessary to complete the job.
  • Advanced knowledge of discipline codes and standards.
  • Ability to perform work in compliance with applicable local, state, and federal codes, statutes and guidelines.
  • Ability to attend to detail and work in a time-conscious and time-effective manner.
  • Intermediate computer and software skills to include proficiency in the use of word processing, e-mail, spreadsheet and electronic presentation programs.
  • Significant experience providing engineering, procurement and construction (EPC) services on large industrial projects.
  • Proficiency executing large EPC projects utilizing engineering analysis, 3D modeling and 2D computer-aided drafting and design (CADD) automation tools in a multi-discipline environment.


Discipline-Specific Job Requirements

  • Advanced engineering knowledge in the design of heating, ventilation and air-conditioning (HVAC) systems.
  • Development of HVAC load calculations.
  • Development of HVAC air flow diagrams and instrument diagrams.
  • Development of HVAC system sequence of operation narratives.
  • Sizing and specification of air handling units and other equipment.
  • HVAC main duct and distribution duct sizing and routing.
  • Development of black utility (chiller, boiler, custom AHU, air compressor and cooling tower) specifications based upon sizing data provided by Process.
  • Development of HVAC specifications.


Preferred Qualifications

  • Professional Engineer license.
  • Experience with design of systems, structures and components for nuclear facilities under the requirements of ASME NQA-1.
  • Advanced knowledge of commercial availability and cost of materials.
  • Demonstrated experience managing and leading large projects.
  • Proficiency with project set-up, development of control-level schedules, progress reporting and project close-out.
  • Practical field experience.
  • EPC project experience for the following industries:
  • U.S. Department of Energy or other U.S. Federal Government Agency.
  • Nuclear facilities under a nuclear quality assurance program.
  • Manufacturing, pharmaceutical or biotechnology.

Salary : $90 - $110

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