Backend Developer Jobs in London

Backend Developer jobs in London hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $213,225/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

London
AI/ML
Data Science
Backend
Frontend
Mobile
DevOps
Web3
Games
Hardware
Robotics
Security
QA
Executive
Networking
Product
Design
Analytics
Support
Enterprise Apps
Quantum

Radiant

radiant.com
AbcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ ABOUT PHOTO APP What you write here is totally up to you, there is no right or wrong way to complete your 'About Us' page. We advise making your language friendly and approachable, while being informative and professional.
radiant.com • HQ: London, United Kingdom
HQ: London, United Kingdom
Open 121 dayVerified live · 5 hours ago 4 months ago

Principal Software Engineer: Cloud Platform

$97k – $194k per year (Estimated) • Lead • Remote/Hybrid (London, United Kingdom) • Full-Time • Principal
Go
Python
Databases
PostgreSQL
AI/ML
KServe
Ray
vLLM
Triton
DevOps
CI/CD
gRPC
Kubernetes
Apply
Open 137 daysVerified live · 5 hours ago 5 months ago

Senior Backend Software Engineer - Backend Systems

$97k – $175k per year (Estimated) • Senior • Remote/Hybrid (London, United Kingdom) • Full-Time • Senior
Go
AI/ML
NVLink
DevOps
CI/CD
gRPC
Kubernetes
Apply
Open 157 daysVerified live · 5 hours ago 6 months ago

Senior Backend Software Engineer - Core Services

$68k – $129k per year • Senior • Remote/Hybrid (London, United Kingdom) • Full-Time • Senior
Go
Databases
PostgreSQL
AI/ML
KServe
vLLM
DevOps
gRPC
Helm
Kubernetes
CI/CD
Apply
Report

Horizontaldigital

horizontaldigital.com
We believe that high-caliber people are central to our business in both the near- and long-term. That’s why we’ve proudly held onto our commitment to remaining independent while investing in diversity of thought and perspective across each and every aspect of our business.
horizontaldigital.com • Dubai • Saint Louis • Riyadh • London • Vadodara • Fixed Wireless
Dubai • Saint Louis • Riyadh • London • Vadodara • Fixed Wireless
Open 122 daysVerified live · 1 day ago 4 months ago

Senior Tech Lead - UK

$89k – $179k per year (Estimated) • Lead • 10+ years expLondon • Remote (United Kingdom) • Staff
C#
JavaScript
TypeScript
C#
.NET
AI/ML
AI Agents
Copilot
Cursor
LLM
Prompt Engineering
Frontend
GraphQL
Next.js
React.js
DevOps
AWS
Azure
Azure DevOps
CI/CD
GitHub Actions
Netlify
Vercel
GitHub
Apply
Report

Founders Factory

foundersfactory.com
We're on a mission to create a repeatable methodology to build truly innovative startups that will define the future. Our incubator creates entirely new products from scratch and turns promising concepts into prototypes, and ultimately an MVP, val...
foundersfactory.com • Berlin • London • Bristol • Perth • New York • Market Research • Financial Services • Venture Capital
Berlin • London • Bristol • Perth • New York • Market Research • Financial Services • Venture Capital
Open 128 days 5 months ago

Founding Engineer - Konduit

$80k – $181k per year (Estimated)Remote/Hybrid (London, United Kingdom) • Full-Time
Apply
Report

Huzzle

huzzle.app
Huzzle is an early careers platform connecting students, societies, and employers. Starting out as a CRM for pre-professional student societies, Huzzle has evolved into the university career companion used by over 100,000 talents in the UK.
huzzle.app • HQ: London, United Kingdom • Professional Services • Education • Human Resources • 1001-5000 employees
HQ: London, United Kingdom • Professional Services • Education • Human Resources • 1001-5000 employees
Open 131 dayVerified live · 1 day ago 5 months ago

Go-To-Market Engineer

$124k – $254k per year (Estimated) • Junior • 2+ years exp • Remote (United States, United Kingdom, Canada) • Full-Time • Junior
SQL
Analytics
A/B Testing
Management
Zapier
Marketing
HubSpot
Salesforce
Apply
Open 139 daysVerified live · 1 day ago 5 months ago

Full-stack Developer

Senior • 5+ years exp • Remote (United States, India, United Kingdom, Australia, Brazil) • Full-Time • Senior
Go
TypeScript
JavaScript
Databases
PostgreSQL
Supabase
Frontend
React.js
Web3
Smart Contracts
Apply
Open 180 daysVerified live · 1 day ago 6 months ago

Full-Stack Developer (Python, React, AI)

Remote (United States, United Kingdom, Australia, Canada, Colombia) • Full-Time
Python
JavaScript
Python
FastAPI
AI/ML
Claude
Claude Code
Frontend
React.js
Mobile
Clean Architecture
DevOps
AWS
GitHub
Apply
Report

Sanity.io

sanity.io
Sanity is the back-end built for AI content operations. Power web, mobile, and agentic applications at scale.
sanity.io • London • San Francisco • Oslo • New York • Operating Systems • Cybersecurity • Commerce
London • San Francisco • Oslo • New York • Operating Systems • Cybersecurity • Commerce
Open 131 dayVerified live · 1 day ago 5 months ago

Senior Software Engineer, Content Agent

$96k – $173k per year (Estimated) • Equity • Senior • In office (London, United Kingdom, Oslo, Norway) • Full-Time • Senior
TypeScript
JavaScript
AI/ML
LLM
Anthropic
Model Context Protocol
Frontend
React.js
DevOps
Heroku
Netlify
Vercel
Design
Figma
Management
Slack
Apply
Report

DuckDuckGo

duckduckgo.com
DuckDuckGo is an independent American software company headquartered in Paoli, Pennsylvania. The company is private held with a team of passionate people from over 15 counties.
duckduckgo.com • Singapore • Search Engines • Est. 2008
Singapore • Search Engines • Est. 2008
Verified live · 2 days ago 5 months ago

Senior Backend Engineer

$179k per year • Equity • Senior • 7+ years exp • Remote (United States, Canada, United Kingdom) • Full-Time • Senior
Go
Node JS
Perl
JavaScript
AI/ML
AI Agents
ChatGPT
Claude
Prompt Engineering
RAG
Apply
Report

Flosum

flosum.com
Flosum is a Salesforce-native DevOps and deployment platform built for enterprise teams. Automate releases, improve governance, and deploy faster with confidence.
flosum.com • HQ: San Ramon, United States • Software • Information Technology • DevOps
HQ: San Ramon, United States • Software • Information Technology • DevOps
Verified live · 1 day ago 5 months ago

Senior Node.js Developer (UK)

$88k – $167k per year (Estimated) • Senior • 5+ years exp • Remote (United Kingdom) • Senior
Apex
Node JS
SQL
TypeScript
JavaScript
Apex
Lightning Web Components
Visualforce
Frontend
Vue.js
DevOps
AWS
Azure
CI/CD
Docker
GCP
Git
Cybersecurity
FedRAMP
GDPR
HIPAA
SOC 2
Marketing
Salesforce
Apply
Report

Vanta

vanta.com
Vanta is an automated security, continuous GRC (Governance, Risk, and Compliance), and trust management platform designed to help businesses scale security and automate compliance. Headquartered in San Francisco, California, the company enables organizations to streamline audit processes and maintain real-time visibility into their security posture.
vanta.com • HQ: San Francisco, United States • Information Security • Cybersecurity • Security Compliance • 1001-5000 employees
HQ: San Francisco, United States • Information Security • Cybersecurity • Security Compliance • 1001-5000 employees
Verified live · 24 min ago 5 months ago

Senior Fullstack Engineer, Vendor Monitoring Experience

$115k – $208k per year (Estimated) • Senior • 7+ years expRemote/Hybrid (London, United Kingdom) • Full-Time • Senior
TypeScript
Frontend
GraphQL
Cybersecurity
HIPAA
ISO 27001
SOC 2
Apply
Verified live · 24 min ago 6 months ago

Senior Fullstack Engineer, Vendor Monitoring Data

$119k – $216k per year (Estimated) • Senior • 7+ years expRemote/Hybrid (London, United Kingdom) • Full-Time • Senior
Go
TypeScript
Cybersecurity
HIPAA
ISO 27001
SOC 2
Apply
Open 216 daysVerified live · 24 min ago 8 months ago

Staff Software Engineer, Privacy & Data Security

$163k – $353k per year (Estimated) • Staff+ • 10+ years expRemote/Hybrid (London, United Kingdom) • Full-Time • Staff
Node JS
TypeScript
JavaScript
Frontend
React.js
Cybersecurity
HIPAA
ISO 27001
SOC 2
Apply
Report

Supabase

supabase.io
Supabase is an open-source backend-as-a-service company headquartered in San Francisco, California, and founded in 2020. The company provides a suite of development tools built on top of PostgreSQL, including database management, user authentication, edge functions, real-time data synchronization, and vector storage for machine learning applications. Operating as a remote-first organization, it serves a global community of developers and enterprises by offering a scalable alternative to proprietary cloud platforms through its integrated suite of open-source technologies.
supabase.io • HQ: San Francisco, United States • Machine Learning • Artificial Intelligence • Cloud Computing • Mobile App Development • Software • Web Development • Information Technology • Database Management • 201-500 employees • Est. 2020
HQ: San Francisco, United States • Machine Learning • Artificial Intelligence • Cloud Computing • Mobile App Development • Software • Web Development • Information Technology • Database Management • 201-500 employees • Est. 2020
Verified live · 1 day ago 5 months ago

Software Engineer - Auth

$69k – $194k per year (Estimated) • Equity • Middle • 4+ years exp • Remote • Full-Time • Middle
Go
TypeScript
Python
PHP
JavaScript
Ruby
Ruby
Ruby on Rails
Python
Django
PHP
Laravel
Databases
MySQL
PostgreSQL
Supabase
Frontend
Next.js
React.js
DevOps
Vector
GitHub
AWS
Grafana
Kubernetes
OpenTelemetry
Prometheus
Apply
Verified live · 1 day ago 7 months ago

Postgres Engineer

Equity • Remote • Full-Time
Rust
Databases
PostgreSQL
Supabase
Apply
Report

Gradient Labs

gradient-labs.ai
Gradient Labs builds AI agents for financial services. Automate disputes, KYC, lending, customer support, and the back-office work in between. Book a demo.
gradient-labs.ai • New York • London • Fraud Detection • Artificial Intelligence • AI Agents
New York • London • Fraud Detection • Artificial Intelligence • AI Agents
Open 145 days 5 months ago

Backend Engineer

$84k – $188k per year (Estimated)Remote/Hybrid (London, United Kingdom) • Full-Time
Go
Databases
PostgreSQL
AI/ML
AI Agents
DevOps
GCP
Kubernetes
Apply
Report

Morpho

morpho.org
Morpho is a decentralised lending protocol founded in 2021 by a team based in Paris. It replaces monolithic lending pools with minimal, immutable markets that anyone can configure, layering curated vaults on top for passive depositors. The protocol is used by fintech applications and exchanges to embed crypto-backed lending without operating their own credit infrastructure.
morpho.org • HQ: Paris, France • Creative Agencies • Design & Creative • Branding • Est. 2021
HQ: Paris, France • Creative Agencies • Design & Creative • Branding • Est. 2021
Open 151 dayVerified live · 1 day ago 5 months ago

Staff Backend Engineer

$75k – $157k per year (Estimated) • Staff+ • 10+ years expParis • Remote (Europe) • Full-Time • Staff
TypeScript
Databases
PostgreSQL
Frontend
GraphQL
Web3
DeFi
Morpho
Apply
Report

Xapien

xapien.com
Our clients use Xapien's AI for fully automated on-demand research on any person or company in the world, in minutes, not days.
xapien.com • HQ: London, United Kingdom • Analytics Platforms • Cybersecurity • Threat Intelligence
HQ: London, United Kingdom • Analytics Platforms • Cybersecurity • Threat Intelligence
6 months ago

Staff Backend Engineer

$122k – $163k per year • Staff+ • 10+ years expRemote/Hybrid (London, United Kingdom) • Full-Time • Staff
Go
Go
Temporal
Databases
Apache Kafka
AI/ML
AI Agents
Claude
Claude Code
Copilot
Cursor
LLM
Edge AI
Gemini
RAG
OpenAI
DevOps
Docker
Grafana
gRPC
Kubernetes
GCP
Prometheus
Rest API
Apply
$108k – $176k per year • Senior • 10+ years expRemote/Hybrid (London, United Kingdom) • Full-Time • Senior
Go
Go
Temporal
Databases
Apache Kafka
ElasticSearch
AI/ML
LLM
Edge AI
Gemini
RAG
OpenAI
DevOps
Docker
Grafana
gRPC
Kubernetes
GCP
Prometheus
Rest API
Apply
Report

Restream

restream.io
Restream is #1 solution that helps to broadcast live video to all social networks simultaneously. Millions of people around the world use Restream to reach, engage, and monetize their audiences. We're a small and diverse group of dreamers who mak...
restream.io • Austin • Tallinn • Software • Video Production • Media & Entertainment
Austin • Tallinn • Software • Video Production • Media & Entertainment
Open 158 daysVerified live · 1 day ago 6 months ago

Senior Software Engineer - Backend - AI Clips Team

$69k – $196k per year (Estimated) • Equity • Senior • Remote (Europe) • Full-Time • Senior
Node JS
Rust
TypeScript
JavaScript
Databases
Redis
DevOps
AWS
CI/CD
Docker
Kubernetes
Apply
Report

ShopMy

shopmy.us
ShopMy is an industry leading platform used to effortless integrate all aspects of creator marketing, from talent discovery to collaboration and monitoring. We work with a network of 40K+ creators and drive millions in order volume monthly for our brand partners. With ShopMy brands have the resources and tools to build a world-class creator marketing program, all in one place.
shopmy.us • New York • Commerce • Est. 2020
New York • Commerce • Est. 2020
Open 333 daysVerified live · 5 hours ago 11 months ago

Senior Full Stack Engineer

$67k – $190k per year (Estimated) • Senior • 5+ years exp • Remote (Europe) • Bachelor's Degree • Senior
JavaScript
Node JS
Frontend
React.js
Redux
Sass
DevOps
AWS
Amazon CloudWatch
Amazon ECS
Apply
Report

Plaid

plaid.com
Plaid Inc. is a financial technology company headquartered in San Francisco, California, and founded in 2013. The company develops a data transfer network and application programming interfaces that allow consumers to securely connect their bank accounts to financial applications and services. It operates globally across North America and Europe, serving over 12,000 financial institutions and powering thousands of digital finance tools for millions of users.
plaid.com • HQ: San Francisco, United States • Data Integration • Data & Analytics • Identity Management • Cybersecurity • Banking • Payments • Financial Services • FinTech • Est. 2013
HQ: San Francisco, United States • Data Integration • Data & Analytics • Identity Management • Cybersecurity • Banking • Payments • Financial Services • FinTech • Est. 2013
Verified live · 5 hours ago 6 months ago

Staff Software Engineer - Europe

$168k – $363k per year (Estimated) • Staff+ • 8+ years expRemote/Hybrid (London, United Kingdom) • Full-Time • Staff
Go
Python
Apply
Report

TransPerfect

transperfect.com
TransPerfect is the world’s largest provider of language services and AI technology solutions, headquartered in New York City, New York. Founded in 1992 by Phil Shawe and Liz Elting, the company operates across more than 100 cities on six continents with over 10,000 employees.
transperfect.com • HQ: New York, United States • Professional Services • Translation Services • 1001-5000 employees • Est. 1992
HQ: New York, United States • Professional Services • Translation Services • 1001-5000 employees • Est. 1992
Open 172 days 6 months ago

Backend Developer (.NET C#)

$59k – $139k per year (Estimated) • Middle • 4+ years expIn office (London, United Kingdom) • Bachelor's Degree • Full-Time • Middle
C#
SQL
C#
Entity Framework Core
Databases
MS SQL
RabbitMQ
DevOps
AWS
Azure
Docker
Apply
Report

HP Inc.

hp.com
HP Inc. is a American multinational technology company specializing in personal computing, printing systems, and 3D printing solutions. Formed in 2015 following the corporate split of the original Hewlett-Packard Company, it manufactures a broad portfolio of consumer and enterprise products, including laptops, desktop PCs, workstation displays, and commercial printers.
hp.com • HQ: Palo Alto, United States • Consumer Electronics • Printers & Scanners • Laptops • 5000+ employees
HQ: Palo Alto, United States • Consumer Electronics • Printers & Scanners • Laptops • 5000+ employees
Open 173 daysVerified live · 1 day ago 6 months ago

Browser Software Engineer Intern

Intern • Cambridge • Remote (United Kingdom) • Relocation • Bachelor's Degree • Internship • Intern
C++
Python
Apply
Report

FDEverything

fdeverything.com
FDEverything is a niche technology publication and newsletter platform focused on Forward Deployed Engineering (FDE) and technical GTM functions. Authored by Sanjay Saraf, the publication delivers biweekly operational roundups, career analysis, organizational frameworks, and strategic industry breakdowns covering how software companies deploy technical teams at the customer interface.
fdeverything.com • New York • Washington • Los Angeles • London • Austin
New York • Washington • Los Angeles • London • Austin
Open 303 days 11 months ago

Software Engineer - Mission Dev

$80k – $181k per year (Estimated)In office (London, United Kingdom) • Full-Time
Apply
Report

Northslope Technologies

northslope.com
Forward-deployed AI applications built on Palantir. Palantir's only Vanguard Elite partner delivering mission-specific AI for aerospace, energy, finance & more.
northslope.com • Abu Dhabi • New York • London • Dubai • Data & Analytics • Software • Artificial Intelligence
Abu Dhabi • New York • London • Dubai • Data & Analytics • Software • Artificial Intelligence
$82k – $184k per year (Estimated) • Equity • Remote/Hybrid (London, United Kingdom) • Bachelor's Degree • Full-Time
Python
TypeScript
JavaScript
AI/ML
LLM
Spark
Frontend
React.js
Apply
Open 179 days 6 months ago

Forward Deployed Software Engineer

$82k – $184k per year (Estimated) • Equity • Remote/Hybrid (London, United Kingdom) • Bachelor's Degree • Full-Time
Python
TypeScript
JavaScript
AI/ML
LLM
Spark
Frontend
React.js
Apply
Report

N8N

n8n.io
n8n is a free and open node-based Workflow Automation Tool. It can be self-hosted, easily extended, and used with third party web applications or custom in-house tools to automate repetitive tasks. With n8n, for the first time, people can move bey...
n8n.io • Berlin • London • Boston • San Francisco • New York • Information Technology • Software • Business Process Automation (BPA) • 11-50 employees
Berlin • London • Boston • San Francisco • New York • Information Technology • Software • Business Process Automation (BPA) • 11-50 employees
Open 179 daysVerified live · 2 hours ago 6 months ago

Senior Product Engineer (TS/NodeJS/Vue)

$75k – $151k per year (Estimated) • Senior • Remote/Hybrid (Berlin, Germany, London, United Kingdom) • Visa sponsorship • Full-Time • Senior
JavaScript
Node JS
TypeScript
Frontend
React.js
Vue.js
DevOps
CI/CD
GitHub
IAM
Git
Grafana
OpenTelemetry
Prometheus
Management
n8n
Apply
Report
Backend Developer Jobs in London
Frequently asked questions
How many Backend Developer jobs in London are available on Alion?
There are currently 682 active listings from 259 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in London pay?
The average salary is around $213,225 per year based on the current listings.
Are remote options available for Backend Developer jobs in London?
Yes, many of these roles offer remote or hybrid work, and you can filter listings by remote, relocation and visa sponsorship.
How do I apply for Backend Developer jobs in London?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.