{"schemaVersion":"jobsearcher.job.v1","id":"fcf132335d196740708f1b0e","url":"https://jobsearcher.com/jobs/fcf132335d196740708f1b0e","canonicalUrl":"https://jobsearcher.com/jobs/fcf132335d196740708f1b0e","title":"Structural Engineer, Thermofluids","description":"Location\n\nAustin, TX; Los Angeles; CA; New York, NY; San Francisco, CA; Seattle, WA\n\nEmployment Type\n\nFull time\n\nLocation Type\n\nHybrid\n\nDepartment\n\nDevelopment\n\nCompensation\n$210K – $260K • Offers Equity\n\nTo provide greater transparency to candidates, we share base pay ranges for all US-based job postings. Our compensation package includes base salary, equity for all full time roles, benefits, and, for applicable roles, commissions plans.\n\nThis range reflects a good-faith estimate based on the applicable pay scale, the range previously established for this role, the compensation of individuals currently in equivalent positions, and/or the budgeted amount for the position. Actual compensation may vary based on experience, qualifications, and other factors.\n\nWe welcome compensation discussions if this range doesn't meet your requirements. Outstanding candidates may be eligible for adjusted terms, plus meaningful equity that ensures you benefit directly from the company's long-term performance.\n\nTotal compensation may also include equity in the form of restricted stock units.\nAbout Fluidstack\n\nWe exist to make humanity more free. For most of human history, you farmed or you starved. Technology gave people more time for the things they wanted to do, instead of things they had to do. Powerful AI will be the biggest lever for human choice we've ever built - but only if models are aligned with what humanity actually wants. There are groups building AI who don't share these goals. Whoever deploys frontier compute infrastructure fastest will decide whether AI expands human freedom or shrinks it.\n\nWe're singularly focused on delivering 10 to 100s of GWs of compute faster than anyone else, rethinking every layer of the stack. We acquire power, design and build data centers, and operate them - with teams spanning hardware and software. Speed and scale are our key differentiators. Come be a part of building civilization-scale infrastructure for AI.\n\nWe hire people who care deeply about this problem space. If that is you, please apply!\n\nHow We Operate\n\nBe a barrel. Full autonomy. Own things end to end, take on scope without being asked, no permission required to operate outside your core role.\n\nInsane urgency. We drive everything forward as fast as possible.\n\nReason from first principles. Challenge every assumption. Zero analogy thinking, no egos, the best idea wins.\n\nLove of the game. The frontier of AI is the most interesting problem of our time. We put in long hours at high intensity to push the frontier forward.\n\nBuild something that actually matters. If you're going to spend your time, spend it on something that matters to the world.\n\nThe Thermofluids R&D Team\n\nExamples of key problems the team is working on\n\nReject 10s of GW of heat, starting now. Fluidstack is targeting 10s of GW of compute over the next two years. Every watt of it becomes heat that has to go somewhere, and no cooling team has ever been asked to open at that scale rather than grow into it.\n\nDesign and build the machines, because nobody can supply them. The merchant compressor market cannot deliver at this rate, and the vendor base behind today’s chillers will not scale to gigawatts. We are taking compressor and chiller design in house, working on machine architectures nobody sells today, and going from blank sheet to production faster than this industry thinks is possible.\n\nOwn every thermofluids problem behind the fleet, not just the chiller. Working fluid and cycle architecture, heat exchangers at a scale that dominates the cost of the plant, two-phase heat transfer at the chip, and thermal energy storage. All of it is open, and whatever this team lands gets built thousands of times.\n\nRole Scope\n\nOwn the structural analysis of the machine: impeller and rotor stress, casing and pressure containment, and the load paths through the packaged unit.\n\nDesign the pressure-containing structures, and carry them from first calculation to hardware people are willing to stand next to.\n\nRun the rotordynamic and modal work alongside the turbomachinery engineer, covering critical speeds, whirl and the magnetic bearing interface.\n\nDesign the containment case, so an energetic failure at speed stays inside the machine.\n\nDesign the test cell structures and fixturing that carry the article, the drive and the loop under load.\n\nWhat We're Looking For\n\nThe below is a starting point. We always make space for exceptional people, so if you don't fit this role exactly, tell us where you would.\n\nYou’ve taken a pressure-containing design from calculation through to a fabricated article, and it held.\n\nYou’ve run FEA on rotating hardware and correlated it against strain gauge, spin-pit or test data rather than trusting the model.\n\nYou’ve owned a containment or burst case and made the argument for why it holds to people whose safety depended on it.\n\nYou’ve worked the modal and critical-speed problem jointly with whoever designed the aerodynamics, early enough to change both.\n\nYou’ve signed off a structure that got built, and you were there when it was first loaded.\n\nBonus: Flight and propulsion structures (spin pit testing, burst margin, containment). Rotordynamics and bearing dynamics. High-cycle fatigue and fracture on rotating hardware. Pressure vessel and containment design. Professional Engineer license.\n\nWe are committed to pay equity and transparency.\n\nFluidstack is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans’ status, or any other characteristic protected by law. Fluidstack will consider for employment qualified applicants with arrest and conviction records pursuant to applicable law.\n\nYou will receive a confirmation email once your application has successfully been accepted. If there is an error with your submission and you did not receive a confirmation email, please email careers@fluidstack.io with your resume/CV, the role you've applied for, and the date you submitted your application- someone from our recruiting team will be in touch.\n\nCompensation Range: $210K - $260K","company":"FluidStack","rawCompany":"fluidstack","city":"Austin","state":"TX","isRemote":false,"isActive":false,"createdAt":"2026-09-24T06:40:12.698Z","occupations":[{"code":"17-2141.00","title":"Mechanical Engineers","slug":"mechanical-engineers"},{"code":"17-2199.00","title":"Engineers, All Other","slug":"engineers-all-other"},{"code":"17-2051.00","title":"Civil Engineers","slug":"civil-engineers"}],"industries":[{"code":"541330","title":"Engineering Services","slug":"engineering-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Structural Engineer, Thermofluids","description":"Location\n\nAustin, TX; Los Angeles; CA; New York, NY; San Francisco, CA; Seattle, WA\n\nEmployment Type\n\nFull time\n\nLocation Type\n\nHybrid\n\nDepartment\n\nDevelopment\n\nCompensation\n$210K – $260K • Offers Equity\n\nTo provide greater transparency to candidates, we share base pay ranges for all US-based job postings. Our compensation package includes base salary, equity for all full time roles, benefits, and, for applicable roles, commissions plans.\n\nThis range reflects a good-faith estimate based on the applicable pay scale, the range previously established for this role, the compensation of individuals currently in equivalent positions, and/or the budgeted amount for the position. Actual compensation may vary based on experience, qualifications, and other factors.\n\nWe welcome compensation discussions if this range doesn't meet your requirements. Outstanding candidates may be eligible for adjusted terms, plus meaningful equity that ensures you benefit directly from the company's long-term performance.\n\nTotal compensation may also include equity in the form of restricted stock units.\nAbout Fluidstack\n\nWe exist to make humanity more free. For most of human history, you farmed or you starved. Technology gave people more time for the things they wanted to do, instead of things they had to do. Powerful AI will be the biggest lever for human choice we've ever built - but only if models are aligned with what humanity actually wants. There are groups building AI who don't share these goals. Whoever deploys frontier compute infrastructure fastest will decide whether AI expands human freedom or shrinks it.\n\nWe're singularly focused on delivering 10 to 100s of GWs of compute faster than anyone else, rethinking every layer of the stack. We acquire power, design and build data centers, and operate them - with teams spanning hardware and software. Speed and scale are our key differentiators. Come be a part of building civilization-scale infrastructure for AI.\n\nWe hire people who care deeply about this problem space. If that is you, please apply!\n\nHow We Operate\n\nBe a barrel. Full autonomy. Own things end to end, take on scope without being asked, no permission required to operate outside your core role.\n\nInsane urgency. We drive everything forward as fast as possible.\n\nReason from first principles. Challenge every assumption. Zero analogy thinking, no egos, the best idea wins.\n\nLove of the game. The frontier of AI is the most interesting problem of our time. We put in long hours at high intensity to push the frontier forward.\n\nBuild something that actually matters. If you're going to spend your time, spend it on something that matters to the world.\n\nThe Thermofluids R&D Team\n\nExamples of key problems the team is working on\n\nReject 10s of GW of heat, starting now. Fluidstack is targeting 10s of GW of compute over the next two years. Every watt of it becomes heat that has to go somewhere, and no cooling team has ever been asked to open at that scale rather than grow into it.\n\nDesign and build the machines, because nobody can supply them. The merchant compressor market cannot deliver at this rate, and the vendor base behind today’s chillers will not scale to gigawatts. We are taking compressor and chiller design in house, working on machine architectures nobody sells today, and going from blank sheet to production faster than this industry thinks is possible.\n\nOwn every thermofluids problem behind the fleet, not just the chiller. Working fluid and cycle architecture, heat exchangers at a scale that dominates the cost of the plant, two-phase heat transfer at the chip, and thermal energy storage. All of it is open, and whatever this team lands gets built thousands of times.\n\nRole Scope\n\nOwn the structural analysis of the machine: impeller and rotor stress, casing and pressure containment, and the load paths through the packaged unit.\n\nDesign the pressure-containing structures, and carry them from first calculation to hardware people are willing to stand next to.\n\nRun the rotordynamic and modal work alongside the turbomachinery engineer, covering critical speeds, whirl and the magnetic bearing interface.\n\nDesign the containment case, so an energetic failure at speed stays inside the machine.\n\nDesign the test cell structures and fixturing that carry the article, the drive and the loop under load.\n\nWhat We're Looking For\n\nThe below is a starting point. We always make space for exceptional people, so if you don't fit this role exactly, tell us where you would.\n\nYou’ve taken a pressure-containing design from calculation through to a fabricated article, and it held.\n\nYou’ve run FEA on rotating hardware and correlated it against strain gauge, spin-pit or test data rather than trusting the model.\n\nYou’ve owned a containment or burst case and made the argument for why it holds to people whose safety depended on it.\n\nYou’ve worked the modal and critical-speed problem jointly with whoever designed the aerodynamics, early enough to change both.\n\nYou’ve signed off a structure that got built, and you were there when it was first loaded.\n\nBonus: Flight and propulsion structures (spin pit testing, burst margin, containment). Rotordynamics and bearing dynamics. High-cycle fatigue and fracture on rotating hardware. Pressure vessel and containment design. Professional Engineer license.\n\nWe are committed to pay equity and transparency.\n\nFluidstack is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans’ status, or any other characteristic protected by law. Fluidstack will consider for employment qualified applicants with arrest and conviction records pursuant to applicable law.\n\nYou will receive a confirmation email once your application has successfully been accepted. If there is an error with your submission and you did not receive a confirmation email, please email careers@fluidstack.io with your resume/CV, the role you've applied for, and the date you submitted your application- someone from our recruiting team will be in touch.\n\nCompensation Range: $210K - $260K","datePosted":"2026-09-24T06:40:12.698Z","dateModified":"2026-09-24T06:40:12.698Z","hiringOrganization":{"@type":"Organization","name":"FluidStack","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Austin","addressRegion":"TX","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"fcf132335d196740708f1b0e"},"url":"https://jobsearcher.com/jobs/fcf132335d196740708f1b0e"}}