<div><span style="font-size:16px;">At Arbor, we’re creating technology to power our lives while protecting the planet that sustains them.  Our advanced power systems deliver clean, reliable baseload electricity with zero operating emissions—modular, fuel-flexible, and engineered for the realities of today’s energy demand. At the core is a supercritical CO₂ turbine with integrated carbon capture, designed to bring carbon-neutral power online quickly at meaningful scale. </span></div><div><span style="font-size:16px;"> </span></div><div><span style="font-size:16px;">Our team includes aerospace engineers, combustion experts, and systems thinkers with a shared goal: to build technology worthy of the world we want to live in. While many of us began our journeys looking to the stars, we’re applying that expertise here at home to deliver dependable, emission-free baseload power and a future of lasting abundance.  </span></div><div><span style="font-size:16px;"> </span></div><div><span style="font-size:16px;">If you’re drawn to rigorous work with lasting impact, we’d love to hear from you. Come build what the future will run on. </span></div><div><br></div><div><span style="font-size:16px;">We are seeking an experienced Heat Transfer Engineer to lead component- and system-level thermal modeling for its advanced turbomachinery systems. You will own the development and integration of heat transfer and secondary flow models across the compressor, turbine, and combustor, enabling robust thermal boundary conditions, cooling flows, and clearance predictions. You will work closely with aerodynamics, mechanical design, systems, and controls teams to ensure thermally integrated, operable hardware. Ideal candidates will have prior experience in high-temperature turbomachinery design, including thermal FEA, flow network modeling, and transient clearance analysis. </span></div><br><br><h3>Responsibilities</h3><ul><li>Own thermal and heat transfer analysis for rotating and stationary turbomachinery components. </li><li>Develop and maintain secondary air system models, including cooling and sealing flow circuits. </li><li>Generate thermal boundary conditions for structural and clearance analysis. </li><li>Collaborate with aero, mechanical design, and systems teams to ensure robust thermal integration and operability. </li><li>Work with test and validation teams to define thermal instrumentation requirements and interpret test data. </li><li>Support transient thermal analysis for startup, shutdown, and off-nominal operating conditions. </li><li>Document results and methods in formal design memos and interface reports. </li><li>Contribute to the development of analysis tools and modeling standards for thermal integration. </li></ul><h3>Requirements</h3><ul><li>Bachelor’s degree in Mechanical, Aerospace, or a related Engineering field. </li><li>6+ years of experience in heat transfer and secondary flow analysis for turbomachinery (gas turbine, aero engine,sCO₂, etc.). </li><li>Experience with thermal FEA, internal cooling design, and/or system-level secondary air system modeling. </li><li>Proficiency in tools such as ANSYS, CFX, Siemens Flowmaster, or equivalent. </li><li>Understanding of transient thermal behavior and its effect on clearances and mechanical integrity. </li><li>Familiarity with turbomachinery design principles and thermomechanical integration. </li><li>Ability to manage thermal interfaces across teams and contribute to system-level decisions. </li><li>Strong communication and documentation skills. </li></ul><h3>Benefits</h3><ul><li>Stock options </li><li>Medical, dental, and vision insurance (Arbor covers 90% for employees) </li><li>Basic life insurance fully covered </li><li>Health savings account (HSA) with matching </li><li>Flexible savings account (FSA) </li><li>Unlimited PTO   </li><li>12+ company holidays, including Earth Day!   </li><li>401(k) </li><li>Commuter benefits </li><li>Annual learning and development stipend </li><li>And more! </li></ul><br><div><span style="font-size:16px;">Arbor is proud to be an equal opportunity employer. We evaluate qualified applicants without regard to race, religion, national origin, gender identity or expression, sexual orientation, age, marital or veteran status, disability, or any other protected characteristic under applicable law. Solving global energy challenges requires a wide range of perspectives and experiences, and we are committed to building a team that reflects the world we serve.</span></div>

<p>In order for humanity to progress and thrive, we must appreciate Earth as the spaceship it is. Our atmosphere, and the diverse ecosystems it sustains, are our vital life support system against an otherwise inhospitable space. Equipped with an astronaut mindset, we treat our natural resources as precious and human kindness as essential.</p>
<p>Arbor is developing a scalable and low-cost approach to reverse humanity&rsquo;s climate footprint, leveraging advanced rocket engine technology and Earth&rsquo;s own natural rhythms. We are designing, manufacturing, and operating systems that will restore balance to the planet and set the foundation for a global circular economy. Our technology converts waste into clean energy and fresh water, while permanently removing CO2 from the atmosphere. We're using the same technology developed to get humans off the Earth to now help us save it.</p>

Sr. Heat Transfer Engineer (Turbomachinery)

<div><span>At Arbor, we’re creating technology to power our lives while protecting the planet that sustains them.&nbsp; Our advanced power systems deliver clean, reliable baseload electricity with zero operating emissions—modular, fuel-flexible, and engineered for the realities of today’s energy demand. At the core is a supercritical CO₂ turbine with integrated carbon capture, designed to bring carbon-neutral power online quickly at meaningful scale.&nbsp;</span></div><div><span>&nbsp;</span></div><div><span>Our team includes aerospace engineers, combustion experts, and systems thinkers with a shared goal: to build technology worthy of the world we want to live in. While many of us began our journeys looking to the stars, we’re applying that expertise here at home to deliver dependable, emission-free baseload power and a future of lasting abundance.&nbsp;&nbsp;</span></div><div><span>&nbsp;</span></div><div><span>If you’re drawn to rigorous work with lasting impact, we’d love to hear from you. Come build what the future will run on.&nbsp;</span></div><div><br></div><div><span>We are seeking an experienced Heat Transfer Engineer to lead component- and system-level thermal modeling for its advanced turbomachinery systems. You will own the development and integration of heat transfer and secondary flow models across the compressor, turbine, and combustor, enabling robust thermal boundary conditions, cooling flows, and clearance predictions. You will work closely with aerodynamics, mechanical design, systems, and controls teams to ensure thermally integrated, operable hardware. Ideal candidates will have prior experience in high-temperature turbomachinery design, including thermal FEA, flow network modeling, and transient clearance analysis.&nbsp;</span></div><br><br><h3>Responsibilities</h3><ul><li>Own thermal and heat transfer analysis for rotating and stationary turbomachinery components.&nbsp;</li><li>Develop and maintain secondary air system models, including cooling and sealing flow circuits.&nbsp;</li><li>Generate thermal boundary conditions for structural and clearance analysis.&nbsp;</li><li>Collaborate with aero, mechanical design, and systems teams to ensure robust thermal integration and operability.&nbsp;</li><li>Work with test and validation teams to define thermal instrumentation requirements and interpret test data.&nbsp;</li><li>Support transient thermal analysis for startup, shutdown, and off-nominal operating conditions.&nbsp;</li><li>Document results and methods in formal design memos and interface reports.&nbsp;</li><li>Contribute to the development of analysis tools and modeling standards for thermal integration.&nbsp;</li></ul><h3>Requirements</h3><ul><li>Bachelor’s degree in Mechanical, Aerospace, or a related Engineering field.&nbsp;</li><li>6+ years of experience in heat transfer and secondary flow analysis for turbomachinery (gas turbine, aero engine,sCO₂, etc.).&nbsp;</li><li>Experience with thermal FEA, internal cooling design, and/or system-level secondary air system modeling.&nbsp;</li><li>Proficiency in tools such as ANSYS, CFX, Siemens Flowmaster, or equivalent.&nbsp;</li><li>Understanding of transient thermal behavior and its effect on clearances and mechanical integrity.&nbsp;</li><li>Familiarity with turbomachinery design principles and thermomechanical integration.&nbsp;</li><li>Ability to manage thermal interfaces across teams and contribute to system-level decisions.&nbsp;</li><li>Strong communication and documentation skills.&nbsp;</li></ul><h3>Benefits</h3><ul><li>Stock options&nbsp;</li><li>Medical, dental, and vision insurance (Arbor covers 90% for employees)&nbsp;</li><li>Basic life insurance fully covered&nbsp;</li><li>Health savings account (HSA) with matching&nbsp;</li><li>Flexible savings account (FSA)&nbsp;</li><li>Unlimited PTO &nbsp;&nbsp;</li><li>12+ company holidays, including Earth Day! &nbsp;&nbsp;</li><li>401(k)&nbsp;</li><li>Commuter benefits&nbsp;</li><li>Annual learning and development stipend&nbsp;</li><li>And more!&nbsp;</li></ul><br><div><span>Arbor is proud to be an equal opportunity employer. We evaluate qualified applicants without regard to race, religion, national origin, gender identity or expression, sexual orientation, age, marital or veteran status, disability, or any other protected characteristic under applicable law. Solving global energy challenges requires a wide range of perspectives and experiences, and we are committed to building a team that reflects the world we serve.</span></div>

Sr. Heat Transfer Engineer (Turbomachinery)

About the Job

About the Company

Arbor Energy

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