Jobs at PsiQuantum

Design, develop, and optimize HPC software using NVIDIA GPUs, AMD CPUs, MPI, CUDA, and OpenMP. Scale and manage distributed HPC clusters, optimize parallel algorithms, profile applications, and benchmark performance across multi-node environments. Collaborate with scientists, engineers, and IT teams to deliver scalable research and production systems while documenting configurations, processes, and performance improvements.

Serves as a strategic advisor on complex employee relations matters, leading workplace investigations, advising on performance and conduct management, developing compliant ER policies, and mitigating organizational risk. Partners with executives, HR, Legal, and analytics teams to identify trends, deliver executive reporting, support high-risk exits, and build scalable manager training and employee relations frameworks.

Lead and mentor a team developing quantum applications software. Oversee simulators, resource estimation frameworks, compilation pipelines, and application integrations while remaining hands-on with software design, development, deployment, testing, and code quality. Collaborate with quantum architects, algorithm researchers, and engineering teams to support fault-tolerant quantum computing, scalable infrastructure, and real-world applications. Drive execution, resolve blockers, and deliver reliable tools for quantum algorithm development.

Own the detailed design, integration, verification, qualification, and manufacturing transfer of electro-optic hardware modules. Translate system requirements into optical, electrical, mechanical, thermal, firmware-control, and test interfaces. Lead experiments, EVT/DVT, debugging, reliability testing, documentation, configuration control, supplier management, and design-for-manufacture activities. Coordinate cross-functional teams and external vendors while ensuring rigorous verification, production readiness, and closure of technical risks.

Design and verify photonic integrated circuit layouts for foundry fabrication. Responsibilities include preparing passive and active component layouts, managing tapeouts, performing DRC, LVS, fill, and density checks, developing Python or commercial-tool automation, contributing to PDK development, and preparing tapeout documentation. The role requires collaboration across hardware and design enablement teams and experience with silicon photonics manufacturing processes, layout tools, and foundry workflows.

Design and extend high-performance, scalable graph database systems supporting PsiQuantum’s distributed quantum-computing control plane. Responsibilities include data systems design, implementation, code reviews, database testing and maintenance, and collaboration with software, hardware, and research teams. The role requires building reliable, performant software for mission-critical, high-scale environments and championing strong software development practices.

Own manufacturing test strategy and scalable production test systems for quantum-computing hardware. Develop fixtures, automated test equipment, software, diagnostics, calibration methods, and test coverage across global manufacturers. Lead deployment, station qualification, operator training, production support, yield analysis, failure investigations, and ramp activities through EVT, DVT, and PVT. Partner with engineering, quality, operations, suppliers, and contract manufacturers to improve coverage, reduce false failures and cycle time, and support commercial-scale production.

Leads firmware architecture and development for quantum computing control systems. Responsibilities include system architecture, component selection, schematic reviews, firmware validation, software interface specifications, technical direction, design reviews, and mentorship across hardware, systems, and software teams.

Designs, models, optimizes, and validates integrated photonic devices and circuits for silicon photonic quantum computing systems. Responsibilities include developing photonic circuit screening plans, analyzing device performance, creating software for photonic design and data analysis, and collaborating with systems, foundry, testing, and cross-functional teams. The role requires strong photonics fundamentals, computational and analytical skills, Python automation experience, and proficiency with commercial photonic and electromagnetic simulation tools.

Designs complex optomechanical and optoelectronic subsystem assemblies for quantum computing systems. Responsibilities include translating requirements into designs, rapid prototyping, owning designs through production, creating process documentation and BOMs, conducting FMEA and risk analyses, performing basic structural and thermal analyses, and maintaining engineering revision control. The role requires collaboration across cryogenics, optics, electronics, and manufacturing teams, with strong emphasis on manufacturability, GD&T, tolerance analysis, and precision design.

Analyze large-scale superconducting nanowire single-photon detector data and film metrology results, apply microscopic superconductivity theory and device models, and design experiments to improve SNSPD materials and performance. Collaborate with materials science, fabrication, testing, and layout teams to support scalable, high-temperature devices and future design tape-outs for fault-tolerant photonic quantum computers.

Build predictive, system-level models of photonic and electronic quantum systems. Translate component nonidealities into quantum performance metrics, develop reduced-order abstractions, validate models against hardware measurements, quantify uncertainty, and drive model closure. Create modular Python simulation software, documented APIs, model libraries, and reproducible workflows. Partner with architecture, validation, design, photonics, electronics, controls, calibration, and systems engineering teams to support trade studies and design decisions.

Design and deliver optomechanical and optoelectronic OCS packages from prototype to production. Lead DFM/DFx, GD&T, tolerance and risk analyses, fixtures and test setups, BOMs, drawings, and supplier documentation. Coordinate with photonics, process, quality, supply chain, and manufacturing partners to ensure manufacturable, verifiable package designs and production readiness.

The Senior Photonics Engineer will develop ultra-low-loss optical interfaces, combining device concept development, optical simulation, and experimental validation for mode conversion and coupling between optical platforms.

The Senior Optical Fibre Engineer will develop and evaluate advanced optical fibre for high-performance optical systems, using simulation tools and conducting experiments to validate fibre properties and performance.

Designs, develops, integrates, and tests electrical cables, connectors, feedthroughs, and PCB interconnects for cryogenic vacuum systems. Responsibilities include electrical, thermal, mechanical, and vacuum analysis; 3D CAD and documentation; component qualification; thermal anchoring and cable routing; supplier coordination; manufacturing support; installation; commissioning; and troubleshooting. The role collaborates across electrical, mechanical, PCB, cryogenic, and systems engineering teams.

Own hardware design for quantum computing systems, including analog and digital PCB circuitry, high-speed electrical and optical links, FPGA and microcontroller systems, clocking, power distribution, signal integrity, and EMI suppression. Develop electro-optic test setups, characterize and debug circuitry, create measurement software, analyze performance data, and document designs and test results. Collaborate with thermal, mechanical, firmware, and optical engineering teams to deliver products for volume manufacturing.

The Principal Power Systems Architect will design and manage large-scale power systems for quantum computing, ensuring power integrity and compliance with stringent requirements.

The Quantum Electronics Engineer will design electronic systems for quantum hardware, focusing on RF design, electro-optic modulation, and working with high-speed electronics while collaborating closely with photonics teams. Responsibilities include implementing low-latency control systems and optimizing complex quantum hardware systems.

Supports electrical, optical, thermal, and mechanical characterization of photonic devices, packages, and assemblies. Develops test plans, operates laboratory equipment, analyzes data, supports DOE, reliability testing, failure analysis, and root-cause investigations. Creates automated Python-based test and analysis tools, prepares technical reports, maintains laboratory documentation and calibration records, and collaborates with product, packaging, reliability, process, and manufacturing engineering teams.