Application Engineer

* This is a Hybrid role with Monday - Thursday onsite and Friday work from home in Jacksonville, FL.

Stellar Energy is a trusted provider of turnkey liquid-to-chip cooling solutions for the world’s leading data center and industrial manufacturing customers. As computing demand and industrial processes continue to grow, modern facilities require cooling infrastructure that can scale quickly, efficiently, and reliably.

Our modular approach enables high-volume production while maintaining the flexibility to customize each solution. From Central Utility Plants to Coolant Distribution Units, Stellar Energy delivers scalable cooling infrastructure designed to support the rapid expansion of data centers and mission-critical industrial operations.

Backed by deep engineering expertise and large‑scale manufacturing capability, Stellar Energy helps customers deploy critical infrastructure faster and with confidence.

The ideal candidate will have direct experience designing commercial or industrial HVAC systems
, including equipment selection, chilled water systems, cooling towers, pumps, heat exchangers, and central plant equipment. They should have experience performing load calculations, developing system layouts, evaluating thermal performance, and supporting customers through the proposal/application engineering process. Candidates from HVAC consulting engineering firms, mechanical contractors, chiller manufacturers, data center cooling companies, or industrial process cooling organizations will be the strongest fits.

The ability to be client facing is also a high priority.

The Application Engineer is responsible for supporting the proposal, design, and execution phases of the business as required.

Assigned projects could span multiple vertical markets, including Power Generation, Oil and Gas, Data Centers, Mission Critical, District Cooling, and Combined Heat and Power.

Specific functions include (but are not limited to): analyzing project-specific weather profiles, building thermal performance modes, predicting/estimating output, efficiency, environmental impact, carrying out sensitivity analysis, technical writing, specification reviews, and equipment/process calculations.

• Undertake engineering and design work independently.
• Analyze and calculate the optimum weather design point based on project specific location.
• Design and specify the process around the optimum design point.
• Develop and improve thermal performance analysis tools to understand system performance.
• Analyze, calculate and present the financial advantages and disadvantages to leadership.
• Present and review various technical solutions with clients.
• Contribute to the business development process and work with engineering and operations to prepare studies on internal products and services.
• Participate in all facets of projects and pursuits including bid support, presentation support, augmentation philosophy development and competitor evaluations.
• Provide technical support to sales and marketing for bids and proposals, such as performance analysis, schematics, equipment selection and specification review.
• Create ROR/ROI models to support internal bid strategies, present to external clients and to prepare external publication materials for marketing purposes.

• Bachelor of Science degree in Engineering from an accredited University with focus on thermodynamics, heat transfer, or energy systems.
• Proficiency with Microsoft Word and PowerPoint.
• Advanced Excel skills particularly with macros and VBA.
• Familiarity with design procedures and inter-discipline communication.
• Familiarity with engineering deliverables (P&IDs, Single Line Diagrams, General Arrangements, etc.).

• Proficiency with GT Pro/GT Master software, Ebsilon Professional, Eta Pro, Gate Ccle, Pepse or similar thermodynamic modelling tools
• 3+ years of industry experience in thermal design, engineering specifically working with Gas Turbine OEMs (preferably knowledgeable in all Gas Turbine OEMs product offerings), Utility Owners, IPPs, EPCs, Technical advisory firms etc.
• Understanding of Thermal Power…