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PsiQuantum logo
Late stage On-site
Photonics Founded 501-1000 employees

PsiQuantum

Palo Alto, California, USA
View 7 open roles Follow Visit www.psiquantum.com ↗
Open roles
↓ -1
7
vs previous 30 days
Salary range
£31–£77k
Avg £51–63k
Hiring activity
Quiet
12-week rolling average
Open Hiring Score
Open
Salary, role detail, work policy

Open Hiring Score grades how openly a company posts jobs — across salary disclosure, role detail, work policy and profile completeness on every published listing.

Open = full disclosure. Detailed = most jobs disclose. Limited = minimal disclosure.

Open — every job discloses salary range, role detail and work policy.

About PsiQuantum

PsiQuantum is building the world's first commercially useful, fault-tolerant quantum computer based on photonic qubits. Using silicon photonics manufactured in a standard semiconductor fab, the company is pursuing a million-qubit-scale machine designed to tackle problems beyond the reach of classical computers, with applications spanning drug discovery, materials science, climate modeling, and financial services.

Photonics Hardware Semiconductors Deep Tech
7 open

Open roles

See all 7 →
PsiQuantum logo

Intern, System Architecture

This internship involves developing photonic quantum computing architectures through simulation, software implementation, and protocol design. Interns will work on translating quantum information theory into physical system designs, using programming and modeling to advance fault-tolerant quantum systems. The role emphasizes collaboration, innovation, and technical rigor in a cutting-edge quantum computing environment.

PsiQuantum United Kingdom £31,200 – £56,160 pa
Hybrid Internship
PsiQuantum logo

Mechanical Design Engineer – Photonic Hardware

This role involves designing precision mechanical and thermal systems for photonic quantum computing hardware, focusing on robustness, manufacturability, and performance in controlled environments. The engineer will work closely with cross-functional teams to translate system requirements into hardware solutions, conduct simulation and validation, and support prototyping and supplier collaboration. The position is based at Daresbury and supports the development of scalable, fault-tolerant quantum systems.

PsiQuantum Runcorn, WA7 1UP, United Kingdom £50,000 – £56,000 pa
On-site Permanent
PsiQuantum logo

Senior Optical Fibre Engineer

This role involves developing and evaluating advanced optical fibre technologies for high-performance photonic systems used in quantum computing. The engineer will perform optical modelling, design experiments to validate fibre properties, and collaborate with internal teams and external partners to integrate fibres into larger optical platforms. Work focuses on specialty fibres with attention to modal behaviour, loss, dispersion, and coupling in demanding environments.

PsiQuantum Runcorn, WA7 1UP, United Kingdom £64,000 – £76,500 pa
On-site Permanent
PsiQuantum logo

Electronics Engineer

Designs and develops RF and high-speed electronic systems for quantum photonic hardware, including electro-optic modulation, low-latency control, and readout systems for superconducting nanowire single-photon detectors. Works closely with photonics and quantum engineering teams to integrate electronics into advanced quantum computing systems using silicon photonics. Involves FPGA-based control, signal integrity optimization, and testing in lab environments.

PsiQuantum Runcorn, WA7 1UP, United Kingdom £50,000 – £57,000 pa
PsiQuantum logo

Integrated Photonics Engineer

Design and conduct experiments to characterize advanced integrated photonic circuits for quantum computing systems. Develop automated test workflows, analyze optical device performance, and collaborate with design teams to refine photonic components such as directional couplers, interferometers, and electro-optic modulators. Work within a high-tech R&D environment focused on scaling fault-tolerant quantum computers using silicon photonics.

PsiQuantum Runcorn, WA7 1UP, United Kingdom £45,000 – £55,000 pa
On-site Permanent
PsiQuantum logo

Senior Photonics Engineer, Optical Interfaces

Develops ultra-low-loss optical interface solutions between dissimilar waveguiding platforms using photonic device design, simulation, and experimental validation. Focuses on mode conversion and coupling for scalable quantum computing systems. Works closely with internal teams and external partners to mature practical, manufacturable solutions.

PsiQuantum Runcorn, WA7 1UP, United Kingdom £64,000 – £76,500 pa
On-site Permanent
See all 7 roles →

Why work here

  • ✓ Work on cutting-edge photonic quantum computing at one of the most well-funded quantum startups in the world
  • ✓ Collaborate with world-leading physicists, engineers, and researchers building a fault-tolerant million-qubit machine
  • ✓ Leverage standard semiconductor manufacturing to scale quantum hardware from prototype to utility
  • ✓ Strong backing from top-tier investors including BlackRock, Microsoft's M12, Temasek, and Baillie Gifford

Hiring at PsiQuantum

Across 5 roles

Work policy

Hybrid
1
Office-based
4
Across 5 roles

Role types

  • permanent 4
  • internship 1
Primary hiring location

Most of PsiQuantum's open roles on Quantum Computing Jobs are based in Runcorn.

Frequently asked questions

What does PsiQuantum do?

PsiQuantum is building the world's first commercially useful, fault-tolerant quantum computer based on photonic qubits. Using silicon photonics manufactured in a standard semiconductor fab, the company is pursuing a million-qubit-scale machine designed to tackle problems beyond the reach of classical computers, with applications spanning drug discovery, materials science, climate modeling, and financial services. PsiQuantum is active in Photonics, Hardware, and Semiconductors.

What stage is PsiQuantum at?

PsiQuantum is at the late stage stage, with £2.3B raised to date, founded 11 years ago in 2015.

When was PsiQuantum founded?

PsiQuantum was founded in 2015 — that makes them 11 years old.

How big is PsiQuantum?

PsiQuantum sits in the 501-1000 employee band according to their public profile. Use this as a rough size signal — actual headcount can shift between disclosures.

How many jobs does PsiQuantum have open on Quantum Computing Jobs?

PsiQuantum has 7 open roles on Quantum Computing Jobs right now. Browse the full list above and apply directly.

Does PsiQuantum hire remotely?

Of PsiQuantum's 5 open roles on Quantum Computing Jobs, 1 hybrid and 4 office-based.

What is the salary range at PsiQuantum?

Advertised salaries for PsiQuantum's current openings on Quantum Computing Jobs average between £50,700 and £62,860. Individual roles may pay above or below this range depending on seniority and location.

Does PsiQuantum publish salaries?

Yes — every live role from PsiQuantum on Quantum Computing Jobs discloses a salary range, alongside role detail and work policy. They score in the top tier of our Open Hiring Score.

Where is PsiQuantum hiring?

PsiQuantum's open roles on Quantum Computing Jobs are based primarily in Runcorn. Check individual listings for remote or hybrid options.

What role types does PsiQuantum hire for?

PsiQuantum's 5 open roles on Quantum Computing Jobs include 4 permanent and 1 internship.

Where PsiQuantum hires

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