Sr. Mechanical Engineer - Turbomachinery

About this role

<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>Role Overview</h2> <p><span data-contrast="auto">We are seeking a Mechanical Design Engineer to lead the design and analysis of rotors and casings for turbomachinery in a supercritical CO₂-based power cycle. This role involves conceptual design, assembly architecture selection, material selection, and structural analysis, ensuring high-performance, reliable operation under demanding conditions. The ideal candidate has expertise in bolted joint and seal design, finite element analysis (FEA), and thermomechanical analysis, with preferred experience in creep analysis and rotordynamics.</span><span data-ccp-props="{"335559738":240}"> </span></p> <p><span data-contrast="none">Arbor’s team of world-class engineers and scientists are</span><span data-contrast="none"> </span><span data-contrast="none">developing a scalable, low-cost approach to Bioenergy with Carbon Capture and Storage (BECCS) based on modern rocket engine technology. BECCS is a carbon dioxide removal (CDR) approach that uses biomass to produce energy and remove CO₂ from the atmosphere and store it permanently underground, while ensuring food security, rural livelihoods, and biodiversity are not affected. Our modular technology leverages the power density of supercritical CO2 to enable compact gasification, oxy-combustion, and high-pressure turbo-expansion to convert abundant waste biomass into clean electricity, water, and high-purity CO2, capturing and sequestering all emissions from the process.</span><span data-contrast="none"> </span><span data-contrast="none"> Our team brings together a passion for science, technology, and global stewardship to make low-cost, high-quality carbon removal and baseload power a reality.</span><span data-ccp-props="{}"> </span></p> <p><span data-ccp-props="{}"><span data-contrast="auto">This is an onsite opportunity in our El Segundo, CA office.</span> </span></p> <h2>Responsibilities</h2> <ul> <li><span data-contrast="auto">Design and optimize rotors and/or casings for high-performance turbomachinery using NX.</span><span data-ccp-props="{}"> </span></li> <li><span data-contrast="auto">Select assembly architectures and materials to meet performance and reliability requirements.</span><span data-ccp-props="{"335559738":240,"335559739":240}"> </span></li> <li><span data-contrast="auto">Size and analyze bolted joints, seals, and piping flanges for structural integrity.</span><span data-ccp-props="{"335559738":240,"335559739":240}"> </span></li> <li><span data-contrast="auto">Perform static and transient thermomechanical analysis using ANSYS.</span><span data-ccp-props="{"335559738":240,"335559739":240}"> </span></li> <li><span data-contrast="auto">Conduct modal analysis of both stationary and rotating systems to evaluate dynamic behavior.</span><span data-ccp-props="{"335559738":240,"335559739":240}"> </span></li> <li><span…