Backend Developer Salary 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

Hivemq

hivemq.com
The real-time Industrial Data Platform powering Agentic AI. Built on MQTT to connect, contextualize, and analyze AI-ready data from edge to cloud.
hivemq.com • AI Agents • IoT Connectivity • Internet of Things
AI Agents • IoT Connectivity • Internet of Things
$67k – $140k per year • Senior • 5+ years exp • Remote (Germany, United Kingdom, Spain) • Full-Time • Senior
Apache Kafka
AI/ML
Claude
Claude Code
Copilot
DevOps
ArgoCD
CI/CD
Git
Kubernetes
Self-Healing
IoT
MQTT
Apply
Report

Payabl

payabl.com
Discover payabl. – Your trusted payment processing services provider. We deliver secure online payment processing solutions for seamless business payments.
payabl.com • HQ: Limassol, Cyprus • Payments • FinTech • Financial Services
HQ: Limassol, Cyprus • Payments • FinTech • Financial Services
Verified live · 2 hours ago 3 months ago

Senior Backend Python Developer - Relocation to Cyprus

$87k – $165k per year (Estimated) • Senior • Remote (Germany, United Kingdom, Czech Republic, Netherlands, Romania) • Relocation • Full-Time • Senior • Greek
Python
Python
Django
FastAPI
Databases
Apache Kafka
DevOps
AWS
AWS Lambda
CI/CD
Docker
GitLab
Apply
Report

Chromatic

chromatic.com
Chromatic catches visual, interaction, and accessibility issues before they ship. This enforces your UI standards, even when AI codes. Assign reviewers to speed up sign-off and provide agents with validated UI context.
chromatic.com • Software • Quality Assurance • Est. 2017
Software • Quality Assurance • Est. 2017
Verified live · 1 day ago 3 months ago

Developer Experience Engineer

$175k – $194k per year • Remote (Europe, North America) • Full-Time
JavaScript
AI/ML
AI Agents
Apply
Report

Quantexa

quantexa.com
Quantexa's Decision Intelligence Platform. The platform to automate and augment your decision-making.
quantexa.com • New York • London • Melbourne • Toronto • Ottawa • Data & Analytics • Artificial Intelligence • Decision Intelligence
New York • London • Melbourne • Toronto • Ottawa • Data & Analytics • Artificial Intelligence • Decision Intelligence
Verified live · 1 day ago 3 months ago

Software Engineer

$81k – $182k per year (Estimated)In office (London, United Kingdom) • Full-Time
Java
Scala
Databases
ElasticSearch
AI/ML
Hadoop
AI Agents
Analytics
ETL/ELT
Apply
Report

Tower Research Capital

tower-research.com
Tower Research Capital is a quantitative trading firm operating automated strategies globally. It builds its own trading infrastructure, exchange connectivity and research systems. The firm supports multiple independent trading teams under one platform.
tower-research.com • HQ: New York, United States • Artificial Intelligence • Financial AI • Est. 1998
HQ: New York, United States • Artificial Intelligence • Financial AI • Est. 1998
Verified live · 11 hours ago 3 months ago

Software Engineer, C++

$96k – $174k per year (Estimated) • Senior • 5+ years expRemote/Hybrid (London, United Kingdom) • Bachelor's Degree • Part-Time • Senior
C++
Python
DevOps
WebSockets
Apply
Open 179 daysVerified live · 11 hours ago 6 months ago

Senior Software Engineer, Development Tools

$94k – $170k per year (Estimated) • Senior • 7+ years expRemote/Hybrid (London, United Kingdom) • Bachelor's Degree • Part-Time • Senior
C++
Python
Rust
C++
CMake
DevOps
Bazel
CI/CD
Docker
Git
Podman
AWS
GCP
Kubernetes
Apply
Open 405 daysVerified live · 11 hours ago 1 year ago

Quantitative Developer, Python - Trading Teams EMEA

$56k – $171k per year (Estimated)Remote/Hybrid (London, United Kingdom) • Bachelor's Degree • Part-Time
C++
Python
AI/ML
NumPy
Pandas
Polars
Apply
Report

Bitso

bitso.com
Bitso is a Latin American digital asset platform founded in 2014 and headquartered in Mexico City. It serves retail customers in Mexico, Argentina, Brazil and Colombia and provides stablecoin-based settlement rails for cross-border remittance corridors. The company holds a fintech licence in Mexico and processes a substantial share of the country's digital asset remittance flow.
bitso.com • HQ: Mexico City, Mexico • Cryptocurrencies • Blockchain & Crypto • Est. 2014
HQ: Mexico City, Mexico • Cryptocurrencies • Blockchain & Crypto • Est. 2014
Equity • Remote (LATAM, Europe)
Java
Databases
Apache Kafka
PostgreSQL
AI/ML
Claude
Cursor
DevOps
AWS
CI/CD
Docker
GCP
Kubernetes
Apply
Report

PTC

ptc.com
PTC Inc. is a global software and services company headquartered in Boston, Massachusetts, and founded in 1985. The company develops a suite of technology solutions including computer-aided design (CAD), product lifecycle management (PLM), industrial internet of things (IIoT), and augmented reality (AR) platforms. It serves over 30,000 customers worldwide, primarily in the discrete manufacturing, aerospace, and defense sectors, and is publicly traded on the NASDAQ under the ticker symbol PTC.
ptc.com • HQ: Boston, United States • Internet of Things • Information Technology • Simulation & Digital Twin • AR & VR • Manufacturing • Industrial IoT (IIoT) • Software • CAD & PLM • 1001-5000 employees • Est. 1985
HQ: Boston, United States • Internet of Things • Information Technology • Simulation & Digital Twin • AR & VR • Manufacturing • Industrial IoT (IIoT) • Software • CAD & PLM • 1001-5000 employees • Est. 1985
Verified live · 1 day ago 3 months ago

Principal Enterprise Architect

$85k – $170k per year (Estimated) • Lead • 12+ years expUnited Kingdom • Remote (United Kingdom) • Bachelor's Degree • Full-Time • Architect
Apply
Report

Civica

civica.com
Civica are a global IT-based services partner in digital solutions, software applications, and managed services.
civica.com • Melbourne • Vadodara • Sydney • Perth • London • Software • Government • Digital Government
Melbourne • Vadodara • Sydney • Perth • London • Software • Government • Digital Government
Verified live · 1 day ago 3 months ago

Senior Software Engineer

$78k – $148k per year (Estimated) • Senior • Remote (United Kingdom) • Senior
C#
TypeScript
C#
.NET
AI/ML
Claude
Claude Code
Copilot
Cursor
Apply
Report

Ramp

ramp.com
Ramp is a financial operations and spend management platform designed to help businesses automate finance tasks, control spending, and accelerate month-end close. Founded in 2019 and headquartered in New York City, Ramp provides an all-in-one platform combining modern corporate cards with workflow software.
ramp.com • New York • London • San Francisco • Buenos Aires • Toronto • Billing & Invoicing • Financial Services • FinTech • 501-1000 employees
New York • London • San Francisco • Buenos Aires • Toronto • Billing & Invoicing • Financial Services • FinTech • 501-1000 employees
Top 25% payVerified live · 28 min ago 3 months ago

Software Engineer, International

$144k – $198k per year • Senior • 5+ years expIn office (London, United Kingdom) • Relocation • Internship • Senior
Platform Engineering
Apply
Report

Arbor Education

arbor-education.com
We believe in a brighter future of work in schools At Arbor, we’re giving schools and their staff the tools, time and insight they need to work at their best, and drive real change. Our mission To …
arbor-education.com • HQ: London, United Kingdom • Education • Learning Management Systems • EdTech Platforms
HQ: London, United Kingdom • Education • Learning Management Systems • EdTech Platforms
Verified live · 2 hours ago 3 months ago

Principal/Staff Engineer (Core Product)

$82k – $164k per year (Estimated) • Lead • Remote (United Kingdom) • Visa sponsorship • Full-Time • Principal
PHP
Python
Databases
MySQL
DevOps
AWS
Apply
Verified live · 2 hours ago 4 months ago

Senior Migrations Engineer

$108k – $122k per year • Senior • Remote (United Kingdom) • Visa sponsorship • Full-Time • Senior
PHP
Python
SQL
PHP
Symfony
Databases
Amazon Aurora
MS SQL
MySQL
AI/ML
AI Agents
DevOps
AWS
CI/CD
Datadog
Prometheus
SLI/SLO/SLA
Analytics
ETL/ELT
Apply
Report

Solve Intelligence

solveintelligence.com
Solve Intelligence builds an artificial intelligence copilot for patent attorneys that drafts and prosecutes applications. Founded in 2023 by researchers from Cambridge and Oxford, it targets the highly structured writing that patent work requires. Its tool operates inside a document editor with jurisdiction-specific rules.
solveintelligence.com • HQ: San Francisco, United States • Legal Services • Financial Services • Artificial Intelligence • Est. 2023
HQ: San Francisco, United States • Legal Services • Financial Services • Artificial Intelligence • Est. 2023
Top 25% payVerified live · 2 days ago 3 months ago

Full Stack (Back-End Leaning)

$100k – $250k per year • In office (London, United Kingdom) • Visa sponsorship • Master's Degree • Full-Time
Python
TypeScript
JavaScript
Databases
PostgreSQL
AI/ML
LLM
Prompt Engineering
OpenAI Evals
OpenAI
Frontend
Gatsby
React.js
DevOps
GitHub
Apply
Open 238 daysTop 25% pay 8 months ago

Full-Stack Engineer (Front-End Leaning)

$100k – $220k per year • In office (London, United Kingdom) • Visa sponsorship • Master's Degree • Full-Time • Polish
TypeScript
JavaScript
Python
Databases
PostgreSQL
Frontend
Gatsby
React.js
Design
Figma
Apply
Report

Sierra

sierra.com
Sierra, formerly known as Sierra Trading Post, is a major American off-price retailer operated by The TJX Companies. The company offers a wide selection of discounted activewear, outdoor recreation gear, footwear, apparel, and home goods from top name brands.
sierra.com • HQ: Framingham, United States • Consumer Goods • Apparel & Fashion • Commerce • E-commerce Platforms
HQ: Framingham, United States • Consumer Goods • Apparel & Fashion • Commerce • E-commerce Platforms
Top 25% payVerified live · 24 min ago 3 months ago

Software Engineer, Agent (Dutch speaking)

$203k – $427k per year • Equity • In office (London, United Kingdom) • Full-Time
TypeScript
AI/ML
AI Agents
LLM
Prompt Engineering
RAG
OpenAI
Management
Google Workspace
Marketing
Salesforce
Apply
Top 25% payVerified live · 24 min ago 9 months ago

Software Engineer, Agent (Italian speaking)

$203k – $427k per year • Equity • In office (London, United Kingdom) • Full-Time
TypeScript
AI/ML
AI Agents
LLM
Prompt Engineering
RAG
OpenAI
Management
Google Workspace
Marketing
Salesforce
Apply
Top 25% payVerified live · 24 min ago 9 months ago

Software Engineer, Agent (Arabic speaking)

$203k – $427k per year • Equity • In office (London, United Kingdom) • Full-Time
TypeScript
AI/ML
AI Agents
LLM
Prompt Engineering
RAG
OpenAI
Management
Google Workspace
Marketing
Salesforce
Apply
Report

The Voleon Group

voleon.com
The Voleon Group is a premier quantitative investment management firm headquartered in Berkeley, California, that specializes in machine learning-driven trading strategies. Founded in 2007 by scientists Michael Kharitonov and Jon McAuliffe, the hedge fund combines advanced data science, statistical modeling, and computational AI to forecast financial markets and execute systematic algorithmic trades.
voleon.com • HQ: Berkeley, United States • Machine Learning • Financial Services • Asset Management
HQ: Berkeley, United States • Machine Learning • Financial Services • Asset Management
Verified live · 11 hours ago 3 months ago

Senior Member of Research Staff, Technical Lead (London)

$131k – $263k per year (Estimated) • Lead • 3+ years expRemote/Hybrid (London, United Kingdom) • PhD • Full-Time • Staff
Apply
Report

Siena AI

siena.cx
Siena AI is a pioneering autonomous customer service platform for commerce, blending human empathy with advanced LLM-powered automation to transform customer engagement for brands like K18, Kitsch, and Simple Modern.
siena.cx • New York • London • Austin • Toronto • Boston • AI Agents • Commerce • Artificial Intelligence • 201-500 employees
New York • London • Austin • Toronto • Boston • AI Agents • Commerce • Artificial Intelligence • 201-500 employees
Verified live · 8 hours ago 3 months ago

Staff Software Engineer

$77k – $161k per year (Estimated) • Equity • Staff+ • 7+ years exp • Remote (United Kingdom, Argentina, Brazil, Romania) • Full-Time • Staff
Node JS
TypeScript
JavaScript
Python
Databases
PostgreSQL
Redis
AI/ML
LLM
ChatGPT
Claude
Cursor
Perplexity
Lovable
Frontend
React.js
Next.js
DevOps
Amazon EC2
AWS
AWS Fargate
AWS Lambda
CI/CD
GitHub Actions
GitHub
Terraform
Management
Slack
Apply
Verified live · 8 hours ago 3 months ago

Senior Fullstack Engineer

$51k – $117k per year (Estimated) • Equity • Senior • 5+ years exp • Remote (United Kingdom, Argentina, Brazil, Romania) • Full-Time • Senior
Node JS
TypeScript
JavaScript
Python
Databases
PostgreSQL
Redis
AI/ML
LLM
ChatGPT
Claude
Cursor
Perplexity
Lovable
Frontend
React.js
Next.js
DevOps
Amazon EC2
AWS
AWS Fargate
AWS Lambda
CI/CD
GitHub Actions
GitHub
Terraform
Management
Slack
Apply
Report

Airwallex

airwallex.com
Airwallex is a global financial technology company that provides cross-border payment, treasury, and banking infrastructure for businesses. Founded in Melbourne in 2015, the platform offers multi-currency business accounts, foreign exchange, payment acceptance, corporate cards, and expense management tools. It helps companies optimize international transactions and scale globally by bypassing traditional, costly banking intermediaries.
airwallex.com • HQ: Singapore • Financial Services • FinTech • Payments • 1001-5000 employees
HQ: Singapore • Financial Services • FinTech • Payments • 1001-5000 employees
Verified live · 2 hours ago 3 months ago

Senior Software Engineer, New Products

$101k – $188k per year • Senior • 6+ years expRemote/Hybrid (London, United Kingdom) • Full-Time • Senior
Salesforce
Apply
Verified live · 2 hours ago 3 months ago

Staff Software Engineer, New Products

$130k – $241k per year • Staff+ • 10+ years expRemote/Hybrid (London, United Kingdom) • Full-Time • Staff
JavaScript
Frontend
Bootstrap
Marketing
Salesforce
Apply
Open 138 daysVerified live · 2 hours ago 5 months ago

Senior Fullstack Engineer, Scale

$101k – $188k per year • Equity • Senior • 5+ years expIn office (London, United Kingdom) • Full-Time • Senior
TypeScript
Databases
Apache Kafka
PostgreSQL
Redis
DevOps
AWS
Azure
GCP
Marketing
Salesforce
Apply
Report

Swift

swift.com
Swift (Society for Worldwide Interbank Financial Telecommunication) is a global member-owned financial cooperative headquartered in La Hulpe, Belgium. Established in 1973 by 239 banks from 15 countries, Swift serves as the backbone of the international financial ecosystem by providing a secure, standardized global financial messaging network. Connecting more than 11,500 banking organizations, securities institutions, and corporate customers across over 200 countries and territories, Swift enables users to exchange standardized financial messages reliably and securely.
swift.com • HQ: La Hulpe, Belgium • Financial Services • Crypto Wallets • Payments • Blockchain & Crypto • 1001-5000 employees • Est. 1973
HQ: La Hulpe, Belgium • Financial Services • Crypto Wallets • Payments • Blockchain & Crypto • 1001-5000 employees • Est. 1973
Verified live · 1 day ago 3 months ago

Senior C++ Developer

$89k – $160k per year (Estimated) • Senior • In office (London, United Kingdom) • Senior
C++
Apply
Report

Dynamo

dynamo.ai
Dynamo AI offers end-to-end AI Performance, Security, and Compliance solutions for delivering Enterprise-grade Generative AI.
dynamo.ai • Washington • New York • San Francisco • London • Paris • LLM & Generative AI • Artificial Intelligence
Washington • New York • San Francisco • London • Paris • LLM & Generative AI • Artificial Intelligence
Verified live · 9 hours ago 3 months ago

Lead Forward Deployed Engineer (UK)

$94k – $189k per year (Estimated) • Lead • 5+ years expIn office (London, United Kingdom) • Full-Time • Staff
PostgreSQL
Redis
DevOps
Amazon EKS
ArgoCD
AWS
Azure
Azure AKS
GCP
Google GKE
Helm
Kubernetes
Kustomize
OpenShift
Platform Engineering
SRE
Terraform
Apply
Report

Carrier

carrier.com
Carrier creates with purpose to enhance lives, support a healthier planet, & build a better future for everyone. Enhancing the lives we live and the world we share.
carrier.com • HQ: Palm Beach Gardens, United States • Artificial Intelligence • Smart Building & Cities • Data & Analytics • Information Technology • Supply Chain • Hardware • Est. 1939
HQ: Palm Beach Gardens, United States • Artificial Intelligence • Smart Building & Cities • Data & Analytics • Information Technology • Supply Chain • Hardware • Est. 1939
Verified live · 1 day ago 3 months ago

Graduate Software Engineer

$51k – $122k per year (Estimated) • Junior • In office (London, United Kingdom) • Visa sponsorship • PhD • Full-Time • Junior
Python
Python
FastAPI
Databases
MySQL
PostgreSQL
Apply
Report

Perplexity AI

perplexity.ai
Perplexity AI is an American company that builds an answer engine combining live web search with large language models to return sourced, conversational responses instead of a list of links. Its products span a consumer assistant on web and mobile, the Comet browser, enterprise search over internal documents and the Sonar developer API that exposes the same grounded retrieval stack. Founded in 2022 in San Francisco by former researchers and engineers from OpenAI, Meta and Databricks, the company is backed by NVIDIA, IVP, New Enterprise Associates and SoftBank.
perplexity.ai • HQ: San Francisco, United States • AI Agents • Internet Services • Artificial Intelligence • Search Engines • LLM & Generative AI • 1001-5000 employees • Est. 2022
HQ: San Francisco, United States • AI Agents • Internet Services • Artificial Intelligence • Search Engines • LLM & Generative AI • 1001-5000 employees • Est. 2022
$181k – $392k per year (Estimated) • Staff+ • 7+ years expIn office (London, United Kingdom, Berlin, Germany, Belgrade, Serbia) • Full-Time • Staff
Python
Rust
AI/ML
Perplexity
DevOps
Amazon EKS
AWS
Incident Management
Kubernetes
Terraform
Apply
Open 272 daysTop 25% pay 9 months ago

Member of Technical Staff (Software Engineer, Security)

$220k – $405k per year • Staff+ • 4+ years expIn office (San Francisco, New York, United States, London, United Kingdom) • Full-Time • Staff
Python
TypeScript
AI/ML
AI Agents
Perplexity
DevOps
AWS
Cybersecurity
Threat Modeling
Apply
Open 312 daysVerified live · 2 hours ago 11 months ago

Member of Technical Staff (Rust Engineer, Search)

Staff+ • In office (Belgrade, Serbia, Berlin, Germany, London, United Kingdom) • Full-Time • Staff
Rust
AI/ML
Perplexity
DevOps
AWS
Apply
Report

Firstup

firstup.com
Firstup is the leading employee communication platform that helps organizations connect with their workforce, improve employee engagement, and drive business results. With Firstup, you can: Create and distribute engaging content to your employees Track and measure the impact of your communication programs Build a culture of open communication and transparency Firstup is used by some of the world's largest and most successful organizations, including McDonald's, Marriott, and Nestle. Firstup is a great way to keep your employees informed, engaged, and motivated.
firstup.com • Chicago • Communication & Collaboration • Professional Services • Human Resources
Chicago • Communication & Collaboration • Professional Services • Human Resources
Verified live · 1 hour ago 3 months ago

Software Engineer, Fullstack (UK)

$81k – $181k per year (Estimated) • Remote (United Kingdom) • Bachelor's Degree • Full-Time
Node JS
Ruby
TypeScript
JavaScript
AI/ML
AI Agents
Frontend
React.js
DevOps
AWS
Datadog
Docker
Helm
Kubernetes
Apply
Open 103 daysVerified live · 1 hour ago 4 months ago

Sr. Software Engineer, Fullstack (UK)

$88k – $167k per year (Estimated) • Senior • Remote (United Kingdom) • Bachelor's Degree • Full-Time • Senior
Node JS
Ruby
TypeScript
JavaScript
AI/ML
AI Agents
Frontend
React.js
DevOps
AWS
Datadog
Docker
Helm
Kubernetes
Apply
Report
Backend Developer Salary 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.