HVAC Design Engineer (Principal)

Job Type


Full-time

Description

Application Deadline:


7/28/2026

Position Summary:


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. This position is in-office full time.

Duties and 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

Requirements

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


Security Clearance:


The ability to obtain and maintain a DOE/DoD Security Clearance - Secret, Top Secret, L or Q is required.

Background Check and Screenings


A pre-employment drug screening and background review that includes checks of personal references, credit, law enforcement records, and employment/education verification is required.

Benefits


We take pride in promoting a healthy work-life balance, family-friendly benefits, servant leadership, team values and professional growth. Our competitive benefits package includes:

• Medical Insurance - 100% company paid premiums for employees.
• Dental and Vision Insurance.
• 401k plan with company match.
• 24 hours of paid community service a year!
• Up to 4 weeks paid time off a year.
• 10 paid floating holidays.
• Life insurance, short- and long-term disability.
• Employee Assistance Program (EAP).
• Professional development opportunities.

JGMS Family of Companies


Ethically minded, mission driven.


We provide applied technology, engineering, science, and management services to government and private sector clients nationwide. As a diverse team of professionals, we are focused on meeting the needs of our clients and following through with real solutions that effectively and efficiently meet all budgetary and scheduling requirements. As a member of the team, you will be involved in a growing, dynamic organization that is developing new client solutions to benefit our environment and economy.

Equal Opportunity Employer


JGMS Government Services LLC (JGMS-GS) is dedicated to the principles of equal employment opportunity (EEO) in any term, condition, or privilege of employment. The Company prohibits unlawful discrimination against applicants or employees on the basis of age (40 and over), race, color, religion, national origin, disability, genetic information, sexual identity, sexual orientation, pregnancy, veteran status, marital status, or any other status protected by federal, state or local laws. This policy applies to all applicants, employees, including managers, supervisors, co-workers, and non-employees such as customers, clients, vendors, consultants, or any other entity in professional contact with the Company.

Due to the nature of the government contract requirements and/or clearance requirements, US citizenship may be required.

Interested candidates should submit an application through the JGMS Careers page by the application deadline listed in this posting. Applications may include a current resume and any other materials identified in the posting. Applicants may redact information from application materials that identifies age, date of birth, or dates of attendance at or graduation from an educational institution.

If you are an individual with a disability and need assistance completing the online application, please call View phone number on click.appcast.io.


Alternatively, an email may be sent to View email address on click.appcast.io with the subject line 'Applicant Accommodation' in the email.

Salary Description


$125,000 - $150,000 annually