<div class="content-intro"><h2><span style="color: rgb(0, 0, 0);">About Us</span></h2> <p><span style="color: rgb(0, 0, 0);">At Arbor Energy & Resources Corporation ("Arbor Energy"), 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></p> <p><span style="color: rgb(0, 0, 0);">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></p> <p><span style="color: rgb(0, 0, 0);">If you share our values and are drawn to rigorous work with lasting impact, we’d love to learn more about you. Come build what the future will run on.</span></p> <p><span style="color: rgb(0, 0, 0);"><span data-sheets-root="1"><strong>Steward our planet</strong>: We build for tomorrow, ensuring every bolt we tighten and every hand we lend leaves our environment stronger than we found it.</span></span></p> <p><span style="color: rgb(0, 0, 0);"><strong>Lead with Love</strong>: We champion the success of our people, partners, and planet, nurturing excellence through camaraderie and rigor.</span></p> <p><span style="color: rgb(0, 0, 0);"><strong>Explore the Uncharted</strong>: We embrace the unknown with curiosity, using courage and discipline to transform uncertainty into opportunity.</span></p></div><h2><span style="color: rgb(0, 0, 0);">Role Overview</span></h2> <p>We're looking for a Sr. Heat Exchanger Engineer to own the design, specification, and development of the compact heat exchangers at the heart of Arbor's supercritical CO₂ power system—the high- and low-temperature recuperators that set plant efficiency, and the coolers around them. You'll lead technical engagement with our heat exchanger suppliers, develop and test additively manufactured and diffusion-bonded designs in high-temperature nickel alloys, and own the thermal and mechanical case for the hardware we put into service. You'll work closely with cycle analysts, mechanical and pressure vessel engineers, manufacturing, and test engineers in a fast-paced, hands-on R&D environment. This is a rare opportunity to apply deep thermal-fluids and manufacturing expertise to climate-impactful technology at the frontier of power generation.</p> <p><em>A power-industry background is not required. Engineers who have designed, built, and tested high-performance thermal hardware in aerospace, propulsion, or advanced manufacturing are encouraged to apply.</em></p> <p><span class="EOP Selected SCXW73947984 BCX0" data-ccp-props="{"335559739":140}"><span data-contrast="auto">This is an onsite opportunity in our El Segundo, CA office.</span><span data-ccp-props="{}"> </span></span></p> <h2><span style="color: rgb(0, 0, 0);">Responsibilities</span></h2> <div> <ul> <li>Own the thermal-hydraulic design of compact heat exchangers across the Arbor power system—high- and low-temperature recuperators, precoolers, and heaters—from conceptual sizing through detailed design, balancing effectiveness, pressure drop, mass, and cost.</li> <li>Serve as technical lead with suppliers of advanced compact heat exchangers, including additively manufactured and printed circuit (diffusion-bonded) units: define requirements and specifications, lead design reviews, and own qualification and acceptance testing.</li> <li>Lead in-house design and development of additively manufactured heat exchangers in high-temperature nickel alloys (e.g., Inconel 625, Haynes 282), applying design for additive manufacturing (DfAM) to channels, headers, and manifolds.</li> <li>Plan and run print and flow trials—from coupons through subscale cores—to characterize geometry, surface finish, and process effects, and anchor thermal-hydraulic and pressure drop models to the data.</li> <li>Own the thermal-mechanical life case for high-temperature heat exchangers—pressure containment, thermal transients, creep, and fatigue—working with mechanical and pressure vessel engineers on ASME code compliance.</li> <li>Plan and execute thermal and hydraulic performance testing on development and plant hardware: define instrumentation, write test procedures, lead data reduction, and close the loop between test results and design.</li> <li>Specify and technically manage conventional heat exchangers (shell-and-tube, air-cooled) per TEMA and API 661 as balance-of-plant needs arise.</li> <li>Generate and maintain the full engineering documentation package: thermal and mechanical calculation packages, drawings, material and process specifications, and test reports.</li> </ul> <h2><span style="color: rgb(0, 0, 0);">Requirements</span></h2> <ul> <li>Bachelor's degree in Mechanical, Chemical, Aerospace, or related Engineering field.</li> <li>6+ years of experience designing, building, and testing high-performance thermal-fluid hardware—heat exchangers, recuperators, precoolers, regeneratively cooled components, or similar.</