Project Engineer, HVAC Modeling
Brightcore EnergyBrooklyn, NY
Full Time
Posted September 22, 2026
$100k - $130k
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Job Description
This role will help Brightcore accelerate its ability to model the advanced thermal performance of geothermal heating and cooling systems, working as part of a team across all of our modeling efforts.
Key Responsibilities
- (Management may amend or assign duties and responsibilities to this job at any time)
- Perform geothermal modeling for core business projects, including thermal performance modeling for data center applications that combine geothermal borefields, dry coolers, and chillers.
- Develop and enhance advanced thermal models for geothermal heating and cooling systems, with a focus on system performance, efficiency, and optimization.
- Model integrated thermal systems combining geothermal borefields, dry coolers, chillers, and other HVAC technologies.
- Support the development of thermal modeling capabilities for data center applications, including high-density and mission-critical environments.
- Collaborate with engineering, design, and project teams to apply modeling insights to real-world customer projects and system designs.
- Expand Brightcore’s modeling capabilities to evaluate new technologies, system configurations, and applications across the geothermal and data center markets.
- Analyze modeling results to identify opportunities to improve system performance, energy efficiency, and overall project economics.
- Help establish and improve modeling tools, methodologies, and processes to support scalable and consistent project development.
- Translate complex modeling results into clear technical recommendations for internal teams and customers.
- Build, run, and maintain models in Modelica and TRNSYS.
- Apply other geothermal-specific modeling tools, including EED (Earth Energy Designer) and pygfunction.
- Analyze model results and modify or calibrate models accordingly.
- Write automated scripts to optimally size systems based on different customer priorities or needs.
- Simulate fluid flow for large piping systems.
- Design hydraulic piping to meet flow and pumping power requirements.
- Model different control strategies and evaluate their impact on system performance.
- All other duties and projects as assigned.
- This position does not have supervisory responsibility.
Requirements
- B.S. in Mechanical Engineering or related field.
- 2+ years of experience in thermal modeling.
- Strong grounding in heat transfer, fluid dynamics, and thermodynamics; comfort reasoning through equipment performance metrics (COP, EER, approach temperatures, heat transfer rates).
- Working proficiency with energy/load modeling tools (e.g., TRNSYS, Modelica, EnergyPlus, eQuest, HAP, or equivalent) and Excel-based engineering models preferred..
- Working proficiency, or ability to quickly come up to speed, with AutoCAD.
- Ability to carry ambiguous concept work — from first-light feasibility through prototype to product requirement — to a defensible, documented result without heavy supervision.
- Fluent with AI tools.
- Direct experience with EED and/or pygfunction for borefield design and analysis preferred.
- Experience modeling data center cooling systems preferred.
- Basic proficiency in Python, or ability to quickly come up to speed preferred.
- EIT certification or active progress toward PE licensure preferred.
- Office presence required at least three (3) days per week, unless otherwise agreed upon with final approval by direct supervisor.
Benefits & Perks
- Brightcore offers a full slate of medical, dental, and vision benefits including options to enroll in a Flexible Spending Account (FSA) and a Health Savings Account (HSA).
- PTO
- Financial Wellness Benefits
- Benefit Concierge Program through Health Advocate
- EAP - Employee Assistance Program
- Disability, Life, & AD&D Benefits
- Access to Marketplace for Discounted Goods & Services
- Brightcore Energy is committed to bringing together individuals from different backgrounds and perspectives.
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