Senior Vacuum System Engineer

OverviewQuantum computing holds the promise of humanity's mastery over the natural world, but only if we can build a real quantum computer. PsiQuantum is on a mission to build the first real, useful quantum computers, capable of delivering world-changing applications. We aim to build a system with roughly 1 million qubits that supports fault tolerant error correction within a scalable architecture and a data center footprint.By harnessing the laws of quantum physics, quantum computers can provide exponential performance increases over today'7;s most powerful supercomputers, offering potential advances across climate, energy, healthcare, pharmaceuticals, finance, agriculture, transportation, materials design, and more.PsiQuantum has determined the fastest path to delivering a useful quantum computer, years earlier than the rest of the industry. Our architecture is based on silicon photonics, enabling high-volume manufacturing at Tier-1 fabs such as GlobalFoundries. We leverage existing cryogenic cooling systems and standard fiber connectivity because photons do not feel heat or electromagnetic 2024, PsiQuantum announced two government-funded projects to support the build-out of our first Quantum Data Centers and utility-scale quantum computers in Brisbane, Australia and Chicago, Illinois. These projects are backed by nations recognizing quantum computing's potential and the need to scale this technology. We will build hardware and fault tolerant quantum applications to deliver industry-transforming results.Quantum computing is not just an evolution of compute power; it is a pathway to mastering our future. The potential is enormous, and we have a plan to make it real. Come join us. There is much more work to be done and we are looking for exceptional talent to join us on this journey.We are not accepting unsolicited resumes from employment agencies.Job SummaryThe cryogenic engineering department is hiring a vacuum system engineer who will be heavily involved in quantum computer design. This position will interact with multiple teams internally and suppliers externally.ResponsibilitiesThe Vacuum System Engineer focuses primarily on the vacuum system design to support quantum computerApply knowledge of thermodynamics, heat transfer, fluid mechanics, and structural mechanics to the development of vacuum systemsPerform detailed analysis, design and test of pumps, pipes, pressure control devicesLead engineering activities from concept development to final onsite commissioning of vacuum equipmentAnalyze field issues related to vacuum system design and provide solutionsThoroughly document design inputs and outputsGeneral design activities such as requirements management, materials and component selection, Design Failure Modes and Effects Analysis (FMEA), and tolerance analysesAssist and/or direct vendors to develop necessary manufacturing processesParticipate in cross functional project teams through all phases of product developmentExperience/QualificationsSc., M.Sc., or Ph.D in Mechanical Engineering, Aerospace Engineering or PhysicsSoftware tools: Mathcad, SINDA/FLUINT, Thermal Desktop, ANSYS Workbench, Solidworks, Fluent, SpaceClaim, Matlab5+ years of experience applying engineering principles to solve complex thermal/fluid problemsKnowledge of high vacuum theory, practice, and equipment including clean room procedures, leak detectors, residual gas analyzers, vacuum pumps and gauges, vacuum modelling and cryogenic environmentsExperience specifying and operating electrical vacuum pumps and modern vacuum systemsExperience using FEA, CFD, or related analysis toolsExperience performing risk evaluation and process hazard analyses for vacuum systemsKnowledge of ASME BPVC and B31.3 codesAbility to adapt to changing priorities and manage multiple assignmentsExcellent written and verbal communication skillsStrong analytical and problem-solving skillsDesired Skills/ExperienceExperience with multiple material performance, design constraints, and manufacturing constraints under cryogenicsHands-on experience with fabrication methods such as machining, welding, brazing, soldering, formingExperience with deep vacuum systems, including cryopumps, ion pumps, turbomolecular pumpsHands-on lab testing and data acquisition experienceUnderstanding of Geometric Dimensioning & Tolerancing per ASME Y14.5PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex, gender identity, national origin, age, disability, military/veteran status, marital status, sexual orientation, or any other basis protected by applicable laws. Note: PsiQuantum will reach out using an official PsiQuantum email address and will never ask for bank account information. Please report suspicious activity to are not accepting unsolicited resumes from employment pensationThe ranges below reflect the target ranges for a new hire base salary. One range is for the Bay Area (within 50 miles of HQ, Palo Alto); the second range, if applicable, is for elsewhere in the US. Actual compensation may vary based on qualifications, location, and business needs. Base pay is part of the total compensation package and may be modified in the future. Full-time roles are eligible for equity and benefits.U.S. Base Pay Range: $133,000 — $173,000 USD #J-18808-Ljbffr

Created: 2025-09-17