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

Rockstar

tryrockstar.com
Human-led recruiting. Reinvented with AI.For 10x Less.. Personalized, multi-step sequences sent via Rockstar or "on behalf of" your team.
tryrockstar.com • HQ: San Francisco, United States • Artificial Intelligence • Professional Services • Human Resources
HQ: San Francisco, United States • Artificial Intelligence • Professional Services • Human Resources
Open 336 daysVerified live · 1 day ago 11 months ago

Backend Software Engineer (Part-Time / Contractor)

$80k – $146k per year (Estimated) • Senior • 6+ years exp • Remote (United Kingdom, Australia, Brazil, Canada, Mexico) • Contractor • Senior
Python
Python
Django
AI/ML
Claude
Cursor
OpenRouter
OpenAI
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Chalkpr

chalkpr.co.uk
Public Relations Agency - Chalk PR is a leading London agency offering high level, expert, strategic consultancy with a creative and collaborative touch. Providing full-service communications, we offer so much more than PR alone.
chalkpr.co.uk • Tel Aviv • Dublin • London • Sales & Marketing • Advertising • Est. 2002
Tel Aviv • Dublin • London • Sales & Marketing • Advertising • Est. 2002
Open 340 daysVerified live · 1 day ago 11 months ago

Forward Deployed Engineer

$72k – $167k per year (Estimated) • Middle • 4+ years expIn office (London, United Kingdom) • Bachelor's Degree • Full-Time • Middle
Python
Rust
SQL
AI/ML
Recommender Systems
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ORY

ory.com
Add customer identity, OAuth, permissions, B2B SSO, or agent security with Ory best practices built in. One command spins up a local stack in seconds.
ory.com • HQ: Scottsdale, United States • Identity Management • Information Technology • Cybersecurity • Est. 2019
HQ: Scottsdale, United States • Identity Management • Information Technology • Cybersecurity • Est. 2019
Open 352 daysVerified live · 2 days ago 11 months ago

Software Engineer

$92k – $223k per year (Estimated) • Senior • 5+ years exp • Remote (Europe) • Bachelor's Degree • Full-Time • Senior
C#
C++
JavaScript
Kotlin
Python
Rust
DevOps
Kubernetes
IAM
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Netguru

netguru.com
Netguru is a digital consultancy and software development company headquartered in Poznan, Poland, and founded in 2008. The firm provides a wide range of services including custom software engineering, product design, artificial intelligence development, and cloud infrastructure management. Operating globally with a team of over 600 specialists, the company serves clients across various sectors such as finance, healthcare, and retail, focusing on digital transformation and AI-native commerce solutions.
netguru.com • HQ: Poznań, Poland • Machine Learning • Artificial Intelligence • Web Development • IT Outsourcing • Information Technology • Design & Creative • Mobile App Development • Software • Est. 2008
HQ: Poznań, Poland • Machine Learning • Artificial Intelligence • Web Development • IT Outsourcing • Information Technology • Design & Creative • Mobile App Development • Software • Est. 2008
Verified live · 1 day ago 11 months ago

Java Developer (Freelance)

up to $70k per year (net) • Remote (EU, Europe) • Freelance
Java
Kotlin
SQL
Java
Spring Boot
DevOps
AWS
CI/CD
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DAKOTA

dakotagroup.fr
dakotagroup.fr • Anchorage • Consumer Goods • Luggage & Bags
Anchorage • Consumer Goods • Luggage & Bags
Open 355 days 11 months ago

Senior Software Engineer, Payments

$146k – $242k per year (Estimated) • Senior • 5+ years exp • Remote (United Kingdom, Spain, Portugal, United States) • Full-Time • Senior
Go
Rust
TypeScript
Databases
PostgreSQL
TimescaleDB
AI/ML
Claude
DevOps
Incident Management
GitHub
Buildkite
CI/CD
GCP
Kubernetes
Vercel
QA
Sentry
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Open 423 daysTop 25% pay 1 year ago

Senior Software Engineer, Back-End

$140k – $200k per year • Senior • 5+ years exp • Remote (United Kingdom, Spain, Portugal, United States) • Full-Time • Senior
Go
TypeScript
Databases
PostgreSQL
TimescaleDB
AI/ML
Claude
DevOps
Incident Management
GitHub
Buildkite
CI/CD
GCP
Kubernetes
Vercel
QA
Sentry
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Veeva Systems

veeva.com
Veeva delivers the industry cloud for life sciences with applications, agents, data, and consulting. Committed to innovation, product excellence, and customer success, Veeva serves more than 1,500 customers, ranging from the world's largest pharmaceutical companies to emerging biotechs.
veeva.com • Warsaw • San Francisco • Milan • Paris • Lisbon • Cloud Computing • Health Care • Software • 1001-5000 employees
Warsaw • San Francisco • Milan • Paris • Lisbon • Cloud Computing • Health Care • Software • 1001-5000 employees
Open 416 daysVerified live · 2 min ago 1 year ago

MDM Technical Architect (Remote)

$113k – $187k per year (Estimated) • Staff+ • 5+ years expLondon • Remote (United Kingdom) • Full-Time • Architect • English
SQL
Analytics
ETL/ELT
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Theodo

theodo.com
Theodo is a digital product development and technology consultancy headquartered in Paris, France, founded in 2009. The company specializes in custom web and mobile application development, artificial intelligence modernization, data engineering, and cloud infrastructure services using its proprietary Lean Tech methodology. It operates as part of the M33 group with over 700 employees across offices in France, the United Kingdom, and Morocco, serving sectors such as financial services, healthcare, and retail.
theodo.com • HQ: Paris, France • Data & Analytics • LLM & Generative AI • Artificial Intelligence • Mobile App Development • Web Development • Software • IT Consulting • Information Technology • Est. 2009
HQ: Paris, France • Data & Analytics • LLM & Generative AI • Artificial Intelligence • Mobile App Development • Web Development • Software • IT Consulting • Information Technology • Est. 2009
Open 458 daysVerified live · 2 days ago 1 year ago

Full Stack Engineer - London - Theodo UK

$82k – $184k per year (Estimated)Remote/Hybrid (London, United Kingdom)
JavaScript
Node JS
Python
TypeScript
Node JS
Nest.JS
Frontend
React.js
Mobile
Expo
React Native
DevOps
AWS
Management
Slack
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Corpay

corpay.com
Corpay is a global business payments company that provides comprehensive solutions for managing corporate expenses, including fuel cards, lodging, and automated accounts payable systems. As a leader in spend management, the firm helps organizations of all sizes streamline financial workflows, control costs, and gain tighter visibility into their spending. Additionally, the company offers extensive cross-border payment and currency risk management services, enabling businesses to facilitate international transactions more efficiently and securely.
corpay.com • HQ: Atlanta, United States • Credit Cards • Financial Services • Payments • 5000+ employees • Est. 1986
HQ: Atlanta, United States • Credit Cards • Financial Services • Payments • 5000+ employees • Est. 1986
Open 537 daysVerified live · 6 hours ago 1 year ago

IT Dev Senior (Software Engineer) - Contractor

$87k – $166k per year (Estimated) • Senior • United Kingdom • Remote (United Kingdom) • Contractor • Senior
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Open 550 daysVerified live · 6 hours ago 1 year ago

Business Title IT Dev Senior (Software Engineer) - Contractor

$87k – $166k per year (Estimated) • Senior • United Kingdom • Remote (United Kingdom) • Contractor • Senior
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FutureSearch

futuresearch.ai
AI forecasting with a public track record. First in Metaculus's Summer 2026 FutureEval tournament, above the superforecaster median on ForecastBench, and every forecast draws on a shared world model that compounds with use. Research trusted by Anthropic, OpenAI, Google, and xAI.
futuresearch.ai • Explainable AI (XAI) • Predictive Analytics • Artificial Intelligence • 11-50 employees
Explainable AI (XAI) • Predictive Analytics • Artificial Intelligence • 11-50 employees
Open 637 daysTop 25% pay 2 years ago

Software Engineer

$125k – $225k per year • Senior • Remote (United States, Germany, United Kingdom, Canada, Czech Republic) • Full-Time
Python
Databases
ClickHouse
PostgreSQL
AI/ML
Claude
Claude Code
LLM
AI Agents
Dagster
Ray
DevOps
Azure
GCP
Kubernetes
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Fuse Energy

fuseenergy.com
Fuse Energy is a British household energy supplier headquartered in London, founded by former Revolut executives. It was the first new domestic energy supplier in Great Britain since the 2021 energy crisis and operates its own renewable generation assets.
fuseenergy.com • HQ: London, United Kingdom • Solar Energy • Energy & Utilities • 501-1000 employees • Est. 2022
HQ: London, United Kingdom • Solar Energy • Energy & Utilities • 501-1000 employees • Est. 2022
Open 1291 dayVerified live · 4 hours ago 3 years ago

Senior/Lead Backend Engineer

$94k – $190k per year (Estimated) • Lead • In office (London, United Kingdom) • Full-Time • Staff
AWS
AWS CDK
Robotics
Digital Twin
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Codurance

codurance.com
Codurance is a global software consultancy firm focused on helping businesses modernize their technical capabilities and build sustainable growth. With a dedication to Software Craftsmanship, Codurance emphasizes professionalism and technical excellence in software development. The company offers a range of services, including software modernization, product development, and cloud engineering, tailored to help clients solve complex challenges and achieve their business goals.
codurance.com • Barcelona • London • Leeds • Manchester • São Bernardo do Campo • IT Consulting • Information Technology • Software
Barcelona • London • Leeds • Manchester • São Bernardo do Campo • IT Consulting • Information Technology • Software
Verified live · 1 day ago 6 years ago

Principal Software Engineer

$93k – $187k per year (Estimated) • Lead • London • Remote (United Kingdom) • Visa sponsorship • Full-Time • Principal
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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.