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

PsiQuantum

Palo Alto, California, USA
View 10 open roles Follow Visit www.psiquantum.com ↗
Open roles
↓ -3
10
vs previous 30 days
Salary range
£31–£77k
Avg £49–63k
Hiring activity
Quiet
12-week rolling average
Open Hiring Score
Detailed
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.

Detailed — most jobs include 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
10 open

Open roles

See all 10 →
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

Optical Architect (Design)

Design and develop the optical architecture for a fault-tolerant, large-scale quantum computer using silicon photonics. Translate quantum protocols into hardware specifications, model system performance, and collaborate across multidisciplinary teams to refine implementation strategies. Focus on qubit networking, error correction, and integration with scalable manufacturing processes.

PsiQuantum Runcorn, WA7 1UP, United Kingdom £55,000 – £66,000 pa
On-site Permanent
PsiQuantum logo

Mechanical Design Engineer – Photonic Hardware

This role involves the mechanical and thermal design, prototyping, and validation of high-specification photonic hardware for quantum computing. The engineer will work closely with photonics, systems, and architecture teams to develop robust, testable, and manufacturable hardware for controlled environments, focusing on precision assemblies, thermal management, and environmental control.

PsiQuantum Runcorn, WA7 1UP, United Kingdom
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

The Quantum Electronics Engineer will design and develop advanced electronic and electro-optic systems for quantum computing, focusing on RF design, electro-optic modulation, and low-latency control systems. You will collaborate closely with senior engineers and photonics teams to integrate electronics with optical systems and optimize complex quantum hardware.

PsiQuantum Runcorn, WA7 1UP, United Kingdom
PsiQuantum logo

Quantum Systems Engineer

The Quantum Systems Engineer will design, build, and validate quantum photonic subsystems and experiments, contributing to the development of fault-tolerant quantum computers. Responsibilities include implementing quantum interference experiments, developing entangling circuits, and integrating subsystems into larger quantum architectures.

PsiQuantum Runcorn, WA7 1UP, United Kingdom
On-site Permanent
See all 10 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 7 roles

Work policy

Hybrid
1
Office-based
6
Across 7 roles

Role types

  • permanent 6
  • 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 10 open roles on Quantum Computing Jobs right now. Browse the full list above and apply directly.

Does PsiQuantum hire remotely?

Of PsiQuantum's 7 open roles on Quantum Computing Jobs, 1 hybrid and 6 office-based.

What is the salary range at PsiQuantum?

Advertised salaries for PsiQuantum's current openings on Quantum Computing Jobs average between £48,800 and £63,415. Individual roles may pay above or below this range depending on seniority and location.

Does PsiQuantum publish salaries?

Mostly — most of PsiQuantum's live roles on Quantum Computing Jobs disclose a salary range, with consistent role detail and work policy across listings.

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 7 open roles on Quantum Computing Jobs include 6 permanent and 1 internship.

Where PsiQuantum hires

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