310 Backend jobs in London, United Kingdom.

Showing vacancies

Lyst

Software Engineer - Affiliate Operations

  • IT
  • Medicine
  • Marketing
  • Cloud
  • +5

£250 GBP - £1k GBP

Lyst is a global fashion shopping platform founded in London in 2010 and catering to over 160M shoppers per year. We offer our customers the largest assortment of premium and luxury fashion products in one place, curating pieces from 27,000 of the world's leading brands and stores.

London, United Kingdom

Luxoft

Senior UI/UX Engineer

  • Contract
  • IT
  • Marketing
  • Design
  • DevOps
  • +4
Our Client is a leading global financial markets infrastructure and data provider. Their purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.

London, United Kingdom

Suade

Mid-level Backend Engineer-2026

  • Remote
  • Hybrid
  • On-site
  • Marketing
  • QA
  • Backend
  • Compliance

£50k - £60k per annum

Suade is a market-leading regtech SaaS company with cutting-edge technology that automates regulatory reporting, compliance and financial risk solutions for financial institutions.

London, United Kingdom

Signal

Backend Software Engineer (Python)

  • Hybrid
  • On-site
  • IT
  • Sales
  • Marketing
  • Data Science
  • +9

€750 EUR - €2k EUR / year

About Signal Ocean: Signal Ocean is the technology arm of the Signal Group, providing market-leading advanced machine learning and AI-driven intelligence to shipping and commodities professionals worldwide.

London, United Kingdom

Medtronic

Software Engineer II - 12-Month Fixed-Term Contract

  • Contract
  • IT
  • Medicine
  • Marketing
  • QA
  • +3

£58k - £87k per annum

Careers that change lives start here. Medtronic is a global leader in healthcare technology with a Mission to alleviate pain, restore health, and extend life.

London, United Kingdom

SpaceXAI

Backend Engineer - API

  • Medicine
  • Marketing
  • Cloud
  • Backend
  • +3

£107k - £262k per annum

SpaceXAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity.

London, United Kingdom

Edgefolio

Senior Data Engineer: Data Platform DevOps & Architecture

  • Remote
  • Cybersecurity
  • Cloud
  • DevOps
  • Backend
  • +4
About the Role We’re seeking a Senior Data Engineer to transform our analytics infrastructure from monolithic SQL/PostgreSQL systems into a modern Azure-based data platform with DevOps at its core. This permanent position focuses on building an automated, self-service architecture designed for continuous evolution.

London, United Kingdom

Pontoon

Python Developer

  • Remote
  • Contract
  • IT
  • Sales
  • Customer Support
  • Cloud
  • +3

£50k - £80k per annum

Salary: £50,000 - 80,000 per year Requirements: - Significant commercial experience developing backend applications in Python. - Proven expertise within AWS cloud environments. - Strong understanding of database technologies, including PostgreSQL and SQL or NoSQL databases, preferably DynamoDB.

London, United Kingdom

ClearRoute

AI Enabled Full Stack Engineer

  • Remote
  • Hybrid
  • IT
  • Medicine
  • Marketing
  • Design
  • +7
About Us: ClearRoute is an engineering consultancy bridging Quality Engineering, Cloud Platforms and Developer Experience. We help enterprises reliably bring high-impact digital products to market faster, cheaper, and safer, working with technology leaders facing complex business challenges.

London, United Kingdom

Tecknuovo

Full Stack Software Engineer

  • IT
  • Marketing
  • Product Management
  • Cloud
  • +5
About the role As a Full Stack Software Engineer, you will play a key role in delivering cloud-native digital services for complex government and enterprise environments.

London, United Kingdom

Mindrift

Senior Python Data Scraping Engineer (Freelance)

  • Remote
  • Part-time
  • Contract
  • Marketing
  • Cloud
  • Backend
  • AI / ML
  • +2

$45 per hour

Mindrift is looking for highly skilled Vibecode specialists to join the Tendem project ( ) and drive specialized data scraping workflows for real-world use cases.

London, United Kingdom

Pontoon

Senior Full Stack Developer

  • On-site
  • Contract
  • IT
  • Cloud
  • Frontend
  • Backend
  • +2

£50k - £80k per annum

Salary: £50,000 - 80,000 per year Requirements: - Extensive Java development experience, including Java 17+ - Strong Spring Boot and microservices experience - Strong React experience; Angular also considered - Experience developing REST APIs - Experience with cloud platforms such as AWS, Azure, or GCP - Experience

London, United Kingdom

Gener8

Senior Backend Engineer

  • Remote
  • Contract
  • Sales
  • Cloud
  • Mobile
  • Backend
  • +1
We’re looking for an experienced backend engineer, working on the core technology that powers our platform. About us Since its launch in 2018, Gener8 has been at the forefront of the “open data” movement: the belief that people should be able to control and be rewarded from their own data.

London, United Kingdom

transitionzero

Lead Engineer (Back-End)

  • Hybrid
  • Contract
  • Construction
  • Cloud
  • DevOps
  • Backend
  • +2
About the Role We are looking for an experienced Lead Engineer (back-end) to lead the team building and scaling the infrastructure behind Scenario Builder, our electricity grid modelling platform.

London, United Kingdom

DISCO

Senior Full Stack Engineer

  • Hybrid
  • Cybersecurity
  • Cloud
  • DevOps
  • Frontend
  • +4
What is DISCO? DISCO is the industry standard for managing, organising and sharing music and other media. We make music and media workflow fast, intuitive and simple, directly connecting people and their work to save time.

London, United Kingdom

Robert Half

Design Developer ( Python / C# / JavaScript) Top Company

  • Remote
  • IT
  • Frontend
  • Backend
  • AI / ML
Design Technology Developer | Python / C# / JavaScript | Central London A household-name global leader , headquartered in London with 400+ people worldwide , is expanding its Digital Design team and looking for a talented Developer to build the tools shaping the future of Architecture & Interior Design.

London, United Kingdom

Applied Computing

Full Stack Engineer, Forward Deployed

  • Hybrid
  • On-site
  • IT
  • Design
  • Cloud
  • DevOps
  • +6

$32 USD

Applied Computing was founded in 2023 to build Orbital, a physics-informed foundation model for energy operations. We’re live across oil and gas, refineries, and petrochemicals, working towards our mission: sustainable abundance for a growing planet. The hydrocarbon industry keeps the world running.

London, United Kingdom

Software Engineering· Full-time

Backend Developer

  • IT
  • Cloud
  • DevOps
  • Backend
Company Description A revolutionary investment platform for activists - A clean, socially responsible future is still within reach – but only if we act soon.

London, United Kingdom

Quant Capital

Data Scientist Fintech 50

  • Data Science
  • Cloud
  • Backend
  • Business Intelligence
  • +2
Data Scientist Fintech 50 Quant Capital is urgently looking for a Data Scientist to join our well-known Fintech50 client who produces software disrupting the wealth management market.

London, United Kingdom

Mercor

Backend Software Engineer - Python

  • Remote
  • Contract
  • IT
  • Backend
  • AI / ML
  • Research

$40 - $50 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