608 Backend jobs in United Kingdom.

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PIMCO

Quantitative Research Analyst, Mortgages

PIMCO is a global leader in active fixed income with deep expertise across public and private markets. We invest our clients’ capital across a range of fixed income and credit opportunities, leveraging our decades of experience navigating complex debt markets.

London, United Kingdom

Mercor

Physics Research Scientist - Fully Remote | Upto $70/hr

  • Remote
  • Contract

$70 per hour

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey .

London, United Kingdom

UK Atomic Energy Authority

Computational Scientist

  • On-site

£43.7k per annum

Job Description About the job Join a team developing advanced computational tools that support world-leading fusion energy research.

Culham, United Kingdom

Heriot-Watt University

Research Assistant/Associate in Micromanufacturing of Passive Wireless Components

Role: Research Assistant/Associate in RF and Experimental Characterisation of Microfabricated Electronic Devices Grade and Salary: Grade 6 - £31,236 - £36,636 / Grade 7 - £37,694 - £47,389 per annum Contract Type: Full Time (1FTE), Fixed Term for 4 Months Holiday Entitlement: 33 days annual leave plus 9 buildings

Edinburgh, United Kingdom

QUANTUM MOTION TECHNOLOGIES LIMITED

QEC and Algorithms Scientist

£62 GBP

About The Role and Team Quantum Motion is a fast-growing quantum computing scale-up based in London founded by internationally renowned researchers from UCL and Oxford University with over 40 years’ experience in developing qubits and quantum computing architectures.

London, United Kingdom

Infleqtion

Junior AMO Physicist

  • Remote
  • Full-time
ABOUT US Infleqtion is a global quantum technology company solving the world’s most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks.

Kidlington, United Kingdom

Oxford Quantum Circuits

Applied Scientist (Computer Vision)

£260 GBP

Associate Quantum Engineer At OQC, we aren’t just theorising about the future; we’re building it. Born from a philosophy of bold innovation, we’ve successfully transitioned quantum computing from an academic dream into a commercial reality.

Reading, United Kingdom

Queen’s University Belfast

Research Fellow

  • Contract

£42972 GBP / year

skip to job profile skip to job details Job details Job details Job reference 26/113647 Date posted 28/09/2026 Application closing date 19/10/2026 Salary £42,972 per annum Job category/type Research Attachments Blank Job description About the Role The School of Mathematics and Physics at Queen’s University Belfast is

United Kingdom

Infleqtion

Senior AMO Physicist - Inertial Sensing

  • Full-time
Infleqtion is a global quantum technology company solving the world’s most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks.

Kidlington, United Kingdom

Infleqtion

Senior AMO Physicist - Quantum RF

  • Remote
  • Full-time
ABOUT US Infleqtion is a global quantum technology company solving the world’s most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks.

Harwell, United Kingdom

Zero Point Motion

Experimental Physicist

This role exists to extract truth from real hardware fast. As an Experimental Physicist at Zero Point Motion, you will build new lab systems from scratch, run high-iteration experiments, and turn messy data into physical insight that informs what we build next.

Bristol, United Kingdom

Postdoctoral Research Scientist (Bioinformatics) - Protist Genomics

£39k - £46.5k per annum

Main Purpose of the Job The Earlham Institute has been awarded funding by the Gordon and Betty Moore Foundation to develop Protist Omics at Scale, a three-year international methods-development programme.

Norwich, United Kingdom

QuEra Computing, Inc.

Sr. AMO Physicist

  • Full-time
Job Title: Sr AMO Physicist Job Type: Full-time Job Location: Harwell, UK Reports to: Technical Lead / Quantum Systems Manager Summary: QuEra Computing UK Limited is looking for an experienced AMO Physicist for its UK Quantum Computing operations.

Harwell, United Kingdom

Mercor

AMO Physicist - Research Specialist

  • Remote
  • Contract

$80 - $110 per hour

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey .

London, United Kingdom

Mercor

Quantum Information Physicist - PhD

  • Remote
  • Contract

$80 - $110 per hour

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey .

London, United Kingdom

MFK Recruitment

Machine Learning Engineer - Spiking Neural Networks

  • Remote
  • Full-time

£75k - £100k per annum

Salary: £75,000 - 100,000 per year Requirements: - Current hands-on experience developing Spiking Neural Networks. - Strong C++ programming and software engineering skills. - Knowledge of machine vision, image analysis or computer vision.

Brentford, United Kingdom

Mercor

High Energy Physics PhD Expert

  • Remote
  • Contract

$80 - $110 per hour

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey .

London, United Kingdom

EIT - Ellison Institute of Technology

Bio-ML Scientist (Metabolic Modelling) - Generative Biology Institute

EIT - Ellison Institute of Technology Oxford, United Kingdom Your Role: At EIT we are seeking an experienced and detail orientated Bio-ML Scientist to develop AI and machine learning systems that drive GBI’s scientific aims, working alongside researchers and technical staff to address key questions in biological

Oxford, United Kingdom

Mercor

Physics PhD - Scientific Computing Expert

  • Remote
  • Contract

$70 per hour

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey .

London, United Kingdom

Mercor

Biophysics Researcher - Fully Remote | Up to $110/hr

  • Remote
  • Contract

$110 per hour

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey .

London, United Kingdom