HVAC Principal Design Engineer

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    "url": "https://careers-geosyntec.icims.com/jobs/4526/hvac-principal-design-engineer/job",
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    "datePosted": "2026-06-02T04:00:00.000Z",
    "description": "<h2>Overview</h2>\n<p>Longenecker & Associates (L&A), a Geosyntec Company, is a trusted partner enabling critical missions across the U.S. Department of Energy (DOE) complex for more than 30 years. We contribute to DOE’s nuclear security and environmental remediation enterprise by providing the highest-caliber staff and experts. We are seeking a motivated <strong>HVAC Principal Design Engineer </strong>to contribute to our mission supporting our work in <strong>Greenville, South Carolina.</strong><strong> </strong></p>\n<p> </p>\n<p>Geosyntec is an innovative, international engineering and consulting firm serving private and public-sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure. Our engineers, scientists, technical and project employees serve our clients from offices across the world. Ranked by ENR as one of the top environmental engineering design firms, Geosyntec is internationally known for its technical leadership, broad experience, and exceptional client service.</p>\n<p> </p>\n<p>We invest in our people.  Each employee is unique, and your career at Geosyntec will be too.  We offer <u>competitive pay and benefits, and well-being programs</u> to support you and your family.</p>\n<p> </p>\n<p>To Learn More Visit: http://www.geosyntec.com/careers/.</p>\n<h2>Essential Duties and Responsibilities</h2>\n<p>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.</p>\n<ul>\n <li>Under general supervision of the Discipline Lead Engineer, serve as a Supervising Lead providing guidance / supervision to other engineers and designers;</li>\n <li>Analyze and make independent recommendations regarding technical solutions to problems of advanced complexity in accordance with project requirements;</li>\n <li>Develop and review specifications and design criteria;</li>\n <li>Perform and check engineering analyses and calculations; specify materials, equipment, and systems; and solve technical problems of advanced complexity;</li>\n <li>Coordinate technical issues with other disciplines, project management, vendors, and clients;</li>\n <li>Execute work in compliance with Project Quality Plan and procedures;</li>\n <li>Execute work in accordance with the approved project scope, cost, and schedule baselines;</li>\n <li>Develop and review estimates, schedules and progress reports including effort-hour estimating and staff forecasting;</li>\n <li>Establish, control, and report on material key quantities; provide analysis and forecasts;</li>\n <li>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;</li>\n <li>Provide technical support to activities associated with construction administration including response to construction requests-for-information and field changes; </li>\n <li>Development of HVAC load calculations;</li>\n <li>Development of HVAC air flow diagrams and instrument diagrams;</li>\n <li>Development of HVAC system sequence of operation narratives;</li>\n <li>Sizing and specification of air handling units and other equipment;</li>\n <li>HVAC main duct and distribution duct sizing and routing;</li>\n <li>Development of black utility (chiller, boiler, custom Air Handling Unit (AHU), air compressor and cooling tower) specifications based upon sizing data provided by Process;</li>\n <li>Development of HVAC specifications; and</li>\n <li>Other duties as assigned.</li>\n</ul>\n<h2>Education and Licensure</h2>\n<ul>\n <li>Bachelor of Science degree in Mechanical Engineering. (required)</li>\n <li>Professional registration (i.e., P.E.). (preferred)</li>\n</ul>\n<h2>Skills, Experience and Qualifications</h2>\n<ul>\n <li>At least 15 years of related work experience required.</li>\n <li>Working knowledge of applicable federal (including Department of Energy orders), state, and local codes and standards.</li>\n <li>Ability to communicate effectively with audiences that include but are not limited to project management, coworkers, clients, vendors, and subcontractors.</li>\n <li>Job related technical knowledge necessary to complete the job.</li>\n <li>Advanced knowledge of discipline codes and standards.</li>\n <li>Ability to perform work in compliance with applicable local, state, and federal codes, statutes and guidelines.</li>\n <li>Ability to attend detail and work in a time-conscious and time-effective manner.</li>\n <li>Intermediate computer and software skills to include proficiency in the use of word, processing, e-mail, spreadsheet and electronic presentation programs.</li>\n <li>Significant experience providing Engineering, Procurement, and Construction (EPC) services on large industrial projects.</li>\n <li>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.</li>\n <li>Advanced engineering knowledge in the design of Heating, Ventilation and Air-Conditioning (HVAC) systems. </li>\n <li>Due to federal contract security requirements, this position requires U.S. Citizenship. (required)</li>\n <li>Due to federal contract security requirements, candidates must be able to successfully pass a federal background investigation to secure and maintain DOE Q security clearance. (required)</li>\n <li>Successful candidates will be able to perform the essential functions of the job with or without reasonable accommodation. This job posting reflects management’s assignment of essential functions and the descriptions listed do not restrict management’s right to assign or reassign duties and responsibilities to this job at any time.                                        </li>\n <li>Health & Safety training, medical monitoring, and client-driven drug and background testing. (required)</li>\n</ul>\n<p>Please note that marijuana remains a Schedule III controlled substance under Federal Law. Federal contractors must follow Federal drug-free workplace rules, which prohibit marijuana use, even if medical or recreational use is permitted under State Law. </p>\n<p> </p>\n<p><strong>PREFERRED QUALIFICATIONS & LOCATION DETAILS:</strong></p>\n<ul>\n <li>Previous experience on DOE sites and programs.</li>\n <li>Experience with design of systems, structures and components for nuclear facilities under the requirements of American Society of Mechanical Engineers (ASME) NQA-1.</li>\n <li>Advanced knowledge of commercial availability and cost of materials.</li>\n <li>Demonstrated experience managing and leading large projects.</li>\n <li>Proficiency with project set-up, development of control-level schedules, progress reporting and project close-out.</li>\n <li>Practical field experience.</li>\n <li>EPC project experience for the following industries:\n  <ul>\n   <li>U.S Department of Energy or other U.S. Federal Government Agency</li>\n   <li>Nuclear facilities under a nuclear quality assurance program</li>\n   <li>Manufacturing, pharmaceutical or biotechnology</li>\n  </ul></li>\n <li>Work location is Greenville, SC</li>\n</ul>",
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