Jobs at PsiQuantum

Develop firmware and system software controlling silicon photonics hardware. Responsibilities include closed-loop control algorithms, real-time systems, device initialization, calibration, diagnostics, state machines, recovery, updates, manufacturing test, and hardware bring-up. The role interfaces with ASICs, FPGAs, converters, sensors, and board-level electronics while supporting reliability, qualification, and failure analysis. Candidates need strong C/C++, Python, embedded systems, control theory, hardware debugging, communication protocols, and software architecture skills.

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.

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.

Lead full-cycle recruitment for highly specialized technical and senior roles in quantum computing, engineering, AI, and applied sciences. Partner with executives and hiring managers on talent strategies, source passive and global candidates, manage leadership searches, provide market intelligence, promote employer branding, advance DEI initiatives, and use recruiting analytics to improve hiring outcomes.

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.

Leads the design, programming, commissioning, and operation of PLC-based controls for cryogenic infrastructure. Responsibilities include electrical and instrumentation systems, PLC and HMI development, safety interlocks, industrial networks, data acquisition, commissioning, troubleshooting, vendor coordination, and system reliability. The role also provides technical leadership, mentors engineers and technicians, establishes controls standards, and supports global installations and cryogenic operations.

Coordinates high-volume recruiting activities, including complex interview scheduling, candidate travel and food arrangements, follow-up, applicant record maintenance, correspondence tracking, and recruiting documentation. Ensures accurate data handling and compliance with employment regulations while supporting a positive candidate experience and collaborating with managers across the organization.

Leads technical product management for quantum computing systems, serving as the technical interface with customers, partners, and industry stakeholders. Responsibilities include negotiating product specifications, defining customer-boundary performance tests, translating customer needs into requirements, supporting engineering priorities and trade-offs, authoring technical content, and representing the company at conferences and standards organizations. The role requires deep datacenter networking expertise, switch and fabric architecture experience, optical networking knowledge, product management experience, and exceptional technical writing skills.

The Mechanical Design Drafter will develop CAD models, drawings, and documentation for cryogenic systems, ensuring accuracy and manufacturability while participating in system commissioning.

Lead installation, commissioning, and maintenance of large-scale cryostats and associated vacuum, instrumentation, and control systems. Develop commissioning procedures, perform diagnostics, preventative and corrective maintenance, and collaborate with cross-functional teams to ensure system reliability, safety compliance, and documentation in an R&D/production environment.

The intern will develop quantum algorithms, optimize subroutines, compile algorithms, apply architecture-aware optimizations, and estimate quantum resources.

Design and run experiments to characterize integrated photonic circuits, test devices (couplers, interferometers, EO modulators), develop automated control and data acquisition with Python, analyze results, collaborate with designers to troubleshoot and scale testing for large photonic systems, and document findings.

The Senior Optical Process Engineer leads process development for R&D and assembly builds in quantum computing, ensuring quality in systems integration and deployment.