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 $213,465/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

London
AI/ML
Software
Data
Security
DevOps & Cloud
Leadership
Product
Design
Fintech
Hardware & Chips
Defense
Aerospace
Biotech
Energy
Robotics
Automotive
MedTech
Science

HKEX

hkexgroup.com
hkexgroup.com · HQ: Hong Kong · Financial Data & Market Intelligence · Stock Exchanges & Market Infrastructure · 1001-5000 employees · Est. 2000 · HKEX: 00388 · Trust A · Hiring 123, 7 new
HQ: Hong Kong · Financial Data & Market Intelligence · Stock Exchanges & Market Infrastructure · 1001-5000 employees · Est. 2000 · HKEX: 00388 · Trust A · Hiring 123, 7 new
Hong Kong Exchanges and Clearing (HKEX) is the listed operator of Hong Kong's only securities and derivatives exchange and its clearing houses, headquartered at Exchange Square in Central, Hong Kong, running equity, commodity, fixed income and currency markets. Formed in 2000, the group is one of the world's largest IPO venues, owns the London Metal Exchange, runs the Stock Connect and Bond Connect links with mainland China and operates the Qianhai Mercantile Exchange in Shenzhen, with offices in London, New York and Singapore. It hires IPO vetting and listing specialists, clearing risk staff, depository and derivatives operations officers, and network, Linux and software engineers.
No named decision-maker yet.
No careers mailbox known
Verified live · 2 hours ago 21 days ago Likely open · 57%

Principal Engineer

≈ $100k – $202k per year (Estimated) · Lead · In office (London, United Kingdom) · Bachelor's Degree · Full-Time · Principal
Scala
Java
Python
Databases
Apache Kafka
DevOps
Splunk
OpenShift
Helm
OpenTelemetry
GitOps
Prometheus
Grafana
Docker
Kubernetes
CI/CD
+6
Apply
Verified live · 2 hours ago 2 months ago Fading · 25%

Senior Engineer - LMEsmart

≈ $66k – $104k per year (Estimated) · Senior · 5+ years exp · In office (London, United Kingdom) · Bachelor's Degree · Full-Time · Senior
Java
Python
JavaScript
Databases
Couchbase
Redis
Apache Kafka
Frontend
React.js
DevOps
Chef
CloudFormation
Configuration Management
Git
Docker
Kubernetes
AWS
Management
Kanban
Agile
+8
Apply
Verified live · 2 hours ago 2 months ago Fading · 25%

Senior Engineer

≈ $86k – $166k per year (Estimated) · Senior · 5+ years exp · In office (London, United Kingdom) · Bachelor's Degree · Full-Time · Senior
Kotlin
Scala
C#
Java
SQL
Python
Python
Flask
Django
C#
.NET
Databases
Apache Kafka
AI/ML
Pandas
Mobile
Modularization
DevOps
CI/CD
Management
Waterfall
Scrum
Agile
+8
Apply

Board Intelligence

boardintelligence.com
boardintelligence.com · HQ: London, United Kingdom · Construction Management Software · 51-200 employees · Est. 2002 · Trust A · Hiring 7
HQ: London, United Kingdom · Construction Management Software · 51-200 employees · Est. 2002 · Trust A · Hiring 7
Discover the science behind board effectiveness with AI-powered software tools and advisory services trusted by 75K+ Fortune 500 and FTSE 100 leaders.
No named decision-maker yet.
Careers mailbox is known
Verified live · 4 hours ago Visa sponsor 21 days ago Long shot · 16%

Software Engineer - Security

≈ $69k – $170k per year (Estimated) · Hybrid (London, United Kingdom) · Full-Time · English
AI Agents
LLM
DevOps
CI/CD
Apply
Verified live · 4 hours ago Visa sponsor 21 days ago Long shot · 16%

Software Engineer - AI Evaluation

≈ $66k – $162k per year (Estimated) · Hybrid (London, United Kingdom) · Full-Time · English
TypeScript
Python
AI/ML
Machine Learning
Apply
Verified live · 4 hours ago Visa sponsor 24 days ago Long shot · 13%

Product Engineer - Platform Experience

≈ $68k – $167k per year (Estimated) · Hybrid (London, United Kingdom) · Full-Time · English
Ruby
TypeScript
Java
Python
AI/ML
Claude Code
Apply

Arc Systems

arcsystems.co.uk
arcsystems.co.uk · HQ: London, United Kingdom · IT Infrastructure & Networking Services · Managed IT Services (MSP) · 201-500 employees · Hiring 4, 3 new
HQ: London, United Kingdom · IT Infrastructure & Networking Services · Managed IT Services (MSP) · 201-500 employees · Hiring 4, 3 new
Arc Systems is a managed IT services provider delivering IT support, hybrid cloud, cybersecurity, infrastructure management, PowerApps and AI solutions to businesses. It hires helpdesk engineers, apprentices and project coordinators at its sites in Yateley and Basildon. The company is based in the United Kingdom.
No named decision-maker yet.
Careers mailbox is known
Verified live · 5 hours ago 21 days ago Hiring now · 80%

Senior Developer - Remote/ Yeovil

≈ $79k – $153k per year (Estimated) · Senior · Hybrid (Basildon, Yeovil, London, United Kingdom) · Full-Time · Senior
C#
TypeScript
JavaScript
SQL
C#
.NET
AI/ML
OpenAI
Claude Code
Claude
Copilot
LLM
AI Agents
Frontend
React.js
DevOps
Azure DevOps
GitHub
Git
Azure
CI/CD
Analytics
Power BI
Management
Power Apps
SharePoint
+12
Apply

Coram AI

coram.ai
coram.ai · HQ: Sunnyvale, United States · Computer Vision · Video Surveillance · 51-200 employees · Est. 2021 · Startup · Trust B · Hiring 42, 2 new
HQ: Sunnyvale, United States · Computer Vision · Video Surveillance · 51-200 employees · Est. 2021 · Startup · Trust B · Hiring 42, 2 new
Coram AI is an artificial intelligence company that develops advanced AI-powered video security and surveillance software. Founded by engineers from Stanford and MIT, it integrates with existing IP cameras to provide real-time threat detection, automated alerts, and fast natural-language search across security footage. The platform serves commercial businesses, educational institutions, and enterprise facilities by transforming traditional physical security setups into proactive, intelligent monitoring systems.
Bryan Baum · Executive Officer · decision-maker
Ashesh Jain · Executive Officer, Director · decision-maker
Peter Ondruska · Executive Officer, Director · decision-maker
Jake Medwell · Director
Careers mailbox is known
Verified live · 4 hours ago 21 days ago Likely open · 53%

Member of Technical Staff, Security & Compliance Lead

≈ $159k – $321k per year (Estimated) · Lead · 8+ years exp · In office (London, United Kingdom) · PhD · Full-Time · Staff
Python
AI/ML
Computer Vision
Multimodal AI
Cybersecurity
SOC 2
FedRAMP
ISO 27001
HIPAA
GDPR
Defense
CMMC
+1
Apply

One World

owgtm.com
owgtm.com · London · Upminster · Military Logistics · Supply Chain · Transportation & Logistics · 11-50 employees · Hiring 1
London · Upminster · Military Logistics · Supply Chain · Transportation & Logistics · 11-50 employees · Hiring 1
One World GTM empowers global supply chain management through complete product ecosystem measurement, from cradle-to-cradle. Step into the future.
No named decision-maker yet.
Careers mailbox is known
Verified live · 1 hour ago 21 days ago Likely open · 64%

Product Engineer

≈ $72k – $176k per year (Estimated) · Hybrid (London, United Kingdom) · Bachelor's Degree · Full-Time
TypeScript
Java
SQL
Python
JavaScript
Java
Spring Boot
Frontend
Next.js
React Query
Material UI
React.js
DevOps
GitHub Actions
Terraform
CI/CD
AWS
Cybersecurity
Auth0
+7
Apply
Report

Affirm

affirm.com
affirm.com · HQ: San Francisco, United States · Buy Now, Pay Later · 1001-5000 employees · Est. 2012 · Trust B · Hiring 234, 39 new
HQ: San Francisco, United States · Buy Now, Pay Later · 1001-5000 employees · Est. 2012 · Trust B · Hiring 234, 39 new
Affirm is an American consumer lending company founded in San Francisco in 2012 that offers instalment loans at the point of sale, an approach usually described as buy now pay later. Unlike revolving credit it underwrites each purchase individually, discloses total cost up front and does not charge late fees, earning revenue from merchant fees on interest-free plans and from interest on longer-term loans. The company is listed on Nasdaq, partners with large retailers and marketplaces including Amazon and Shopify, and also issues a debit card that lets shoppers split purchases after the fact.
Max Levchin · Founder and Chief Executive Officer · decision-maker
Rob O'Hare · Chief Financial Officer · decision-maker
No careers mailbox known
Verified live · 2 hours ago 22 days ago Hiring now · 89%

Software Engineer I, Early Career (London)

≈ $62k – $143k per year (Estimated) · Equity · Junior · Hybrid (London, United Kingdom) · Bachelor's Degree · Junior
Apply

Cognizant

cognizant.com
cognizant.com · HQ: Teaneck, United States · Cloud Consulting & Migration · Engineering Services · IT Outsourcing & Dedicated Teams · IT Consulting & Digital Transformation · Systems Integrators · 5000+ employees · Est. 1994 · IT services · Trust A · Hiring 1287, 226 new
HQ: Teaneck, United States · Cloud Consulting & Migration · Engineering Services · IT Outsourcing & Dedicated Teams · IT Consulting & Digital Transformation · Systems Integrators · 5000+ employees · Est. 1994 · IT services · Trust A · Hiring 1287, 226 new
Cognizant is an American information technology services and consulting company founded in 1994 as an in-house technology unit of Dun and Bradstreet in Chennai, India, and headquartered in Teaneck, New Jersey. It builds, integrates and operates software and infrastructure for large enterprises, with particularly deep positions in healthcare, financial services, insurance and life sciences, delivered by a global workforce of more than three hundred thousand people concentrated in India. Listed on Nasdaq, the company competes with the large Indian and global systems integrators and has reoriented its offerings around cloud migration, data platforms and AI-assisted engineering.
Jatin Dalal · Chief Financial Officer · decision-maker
Ravi Kumar · Chief Executive Officer · decision-maker
Kumar Mahadeva · Founder & former Chief Executive Officer · founder
Francisco D'Souza · Co-Founder & former Chief Executive Officer · founder
Careers mailbox is known
Verified live · 3 hours ago 22 days ago Fading · 42%

Senior Developer

≈ $64k – $130k per year (Estimated) · Senior · London · Remote (United Kingdom) · Full-Time · Senior
SQL
Python
Python
pySpark
AI/ML
Spark
DevOps
AWS
Apply
Verified live · 3 hours ago 22 days ago Fading · 42%

Senior Python Developer/ Engineer

≈ $63k – $129k per year (Estimated) · Senior · London · Remote (United Kingdom) · Full-Time · Senior
Python
JavaScript
Python
Flask
FastAPI
Databases
DynamoDB
Amazon Aurora
MySQL
PostgreSQL
Frontend
Next.js
React.js
Mobile
Clean Architecture
Repository Pattern
Dependency Injection
DevOps
AWS CDK
CloudFormation
AWS Fargate
AWS Lambda
Amazon ECS
Amazon CloudWatch
Amazon EventBridge
AWS Step Functions
API Gateway
Amazon S3
IAM
Terraform
Rest API
Docker
CI/CD
AWS
WebSockets
GitHub Actions
Azure DevOps
Jenkins
Azure
Management
Agile
Scrum
QA
Swagger
Pytest
+30
Apply

WSD

wsd.com
wsd.com · HQ: London, United Kingdom · RegTech, AML & Compliance · Financial Services · 201-500 employees · Est. 2000 · Trust D · Hiring 10
HQ: London, United Kingdom · RegTech, AML & Compliance · Financial Services · 201-500 employees · Est. 2000 · Trust D · Hiring 10
The partner for structured product data, documents and distribution. We're the home for structured product data, documents and distribution.
Jan Valenthon · Managing Director · decision-maker
Careers mailbox is known
Verified live · 2 hours ago 22 days ago Fading · 41%

Software Engineer

≈ $70k – $171k per year (Estimated) · In office (London, United Kingdom) · Bachelor's Degree · Full-Time
PHP
JavaScript
SQL
AI/ML
AI Agents
Management
Agile
Apply
Likely inactiveVerified live · 2 hours ago 3 months ago Long shot · 8%

Lead Software Engineer

≈ $98k – $198k per year (Estimated) · Lead · 8+ years exp · In office (London, United Kingdom) · Full-Time · Staff
Kotlin
Node JS
TypeScript
Java
JavaScript
Databases
Apache Kafka
Frontend
React.js
DevOps
Incident Management
CI/CD
OpenTelemetry
Datadog
Grafana
Rest API
Docker
Kubernetes
AWS
Cybersecurity
Keycloak
+9
Apply
Likely inactiveVerified live · 2 hours ago 5 months ago Long shot · 8%

Senior Software Engineer

≈ $88k – $170k per year (Estimated) · Senior · 10+ years exp · In office (London, United Kingdom) · Full-Time · Senior
Kotlin
Node JS
TypeScript
Java
JavaScript
Databases
ElasticSearch
Apache Kafka
PostgreSQL
DevOps
Datadog
Docker
Kubernetes
AWS
Backstage
Cybersecurity
Keycloak
+6
Apply

Atolls

atolls.com
atolls.com · Paris · Bengaluru · Berlin · London · Amsterdam · Internet Service Providers · Commerce · Price Comparison · Coupons, Deals & Cashbacks · Startup · Trust A · Hiring 16
Paris · Bengaluru · Berlin · London · Amsterdam · Internet Service Providers · Commerce · Price Comparison · Coupons, Deals & Cashbacks · Startup · Trust A · Hiring 16
Atolls is the world’s largest shopping engagement platform, empowering millions of people to take smarter spending decisions.
No named decision-maker yet.
Careers mailbox is known
Verified live · 4 hours ago Visa sponsor 22 days ago Hiring now · 76%

Senior Backend Software Engineer (TypeScript, NestJS/Node.js) (m/f/x)

≈ $86k – $168k per year (Estimated) · Senior · 6+ years exp · Hybrid (London, United Kingdom) · Senior · English (Optional)
Node JS
TypeScript
JavaScript
Node JS
Nest.JS
Databases
DynamoDB
ElasticSearch
Frontend
GraphQL
DevOps
Amazon EventBridge
GitLab
Rest API
Docker
GCP
Azure
CI/CD
AWS
Management
Scrum
Agile
+9
Apply

Thunes

thunes.com
thunes.com · HQ: Singapore · Payment Processing & Gateways · Money Transfer & Remittances · 501-1000 employees · Startup · Trust B · Hiring 50, 4 new
HQ: Singapore · Payment Processing & Gateways · Money Transfer & Remittances · 501-1000 employees · Startup · Trust B · Hiring 50, 4 new
Thunes is a cross-border payments infrastructure company headquartered in Singapore, operating a Direct Global Network that lets businesses pay out to and collect from mobile wallets, bank accounts, cards and stablecoin wallets around the world. Its members include gig economy platforms such as Uber and Deliveroo, super-apps such as Grab and WeChat, money transfer operators, fintechs, payment service providers and banks, served from offices in Barcelona, London, Paris, Manila, Nairobi, Dubai and other cities. It hires software engineers, treasury and KYC officers, account managers, partnership leads, BI and NOC analysts and onboarding specialists.
No named decision-maker yet.
Careers mailbox is known
Verified live · 4 hours ago 23 days ago Hiring now · 81%

Software Engineer

≈ $79k – $152k per year (Estimated) · Senior · Hybrid (Barcelona, Spain, London, United Kingdom)
Go
Databases
RabbitMQ
MySQL
Apache Kafka
PostgreSQL
DevOps
CI/CD
AWS
Management
Agile
Apply
Verified live · 4 hours ago 5 months ago Long shot · 18%

GO Senior Software Engineer

≈ $88k – $170k per year (Estimated) · Senior · In office (London, United Kingdom) · Senior
Go
Databases
RabbitMQ
MySQL
Apache Kafka
PostgreSQL
DevOps
CI/CD
AWS
Management
Agile
Apply

Odeko

odeko.com
odeko.com · HQ: New York, United States · B2B Commerce · Catering & Food Services · Wholesale · 201-500 employees · Est. 2019 · Startup · Hiring 23, 2 new
HQ: New York, United States · B2B Commerce · Catering & Food Services · Wholesale · 201-500 employees · Est. 2019 · Startup · Hiring 23, 2 new
Odeko is an operations and technology partner for independent coffee shops, cafes and other food establishments, supplying them with goods from national and local brands. Customers order supplies through a web portal and mobile app, track ordering trends, finance equipment and access insurance, while the company hires warehouse staff, delivery drivers and territory managers. The company is headquartered in New York, United States.
Todd Sundsted · Executive Officer · decision-maker
Dane Atkinson · Executive Officer, Director · decision-maker
Bernar Bekirov · Executive Officer · decision-maker
Todd Sunsted · Executive Officer · decision-maker
No careers mailbox known
Verified live · 1 hour ago 24 days ago Likely open · 63%

Senior Product Engineer

$121k – $134k per year · Senior · 6+ years exp · In office (London, United Kingdom) · Senior
Ruby
TypeScript
JavaScript
Databases
Apache Kafka
AI/ML
OpenAI Codex
LLM Guardrails
Cursor
Claude Code
AI Agents
Function Calling
LLM
Frontend
GraphQL
React.js
Mobile
React Native
DevOps
CI/CD
AWS
Docker
Kubernetes
+10
Apply

Eventogy

eventogy.com
eventogy.com · HQ: London, United Kingdom · Event Management · Est. 2013 · Hiring 6, 2 new
HQ: London, United Kingdom · Event Management · Est. 2013 · Hiring 6, 2 new
Enterprise event management software for banking and legal. Scheduling, hospitality, budgets and reporting, with one system of record for every event.
No named decision-maker yet.
Careers mailbox is known
Verified live · 2 hours ago 24 days ago Likely open · 55%

Product Engineer - Front-End Leaning, Full-Stack

$74k – $80k per year · Hybrid (London, United Kingdom) · Full-Time
PHP
TypeScript
JavaScript
PHP
Laravel
PHPUnit
Pest
Eloquent
AI/ML
Claude Code
Frontend
Next.js
React.js
QA
Playwright
+3
Apply

Robinhood

robinhood.com
robinhood.com · HQ: Menlo Park, United States · Crypto Exchanges · Investing Apps & Robo-Advisors · Online Brokerage & Trading Platforms · 1001-5000 employees · Est. 2013 · Trust B · Hiring 149, 16 new
HQ: Menlo Park, United States · Crypto Exchanges · Investing Apps & Robo-Advisors · Online Brokerage & Trading Platforms · 1001-5000 employees · Est. 2013 · Trust B · Hiring 149, 16 new
Robinhood is an American brokerage founded in 2013 that made commission-free trading and fractional shares the industry norm through a mobile-first app aimed at first-time investors. It earns most of its revenue from payment for order flow, net interest on customer cash and margin lending, and a paid subscription tier, and it has expanded from equities and options into cryptocurrency, retirement accounts, prediction markets and a credit card. Headquartered in Menlo Park and listed on Nasdaq, it drew sustained regulatory attention after the meme stock trading restrictions of 2021.
Vladimir Tenev · Co-founder and Chief Executive Officer · decision-maker
Jason Warnick · Chief Financial Officer · decision-maker
Baiju Bhatt · Co-founder · founder
Careers mailbox is known
Verified live · 4 hours ago Visa sponsor 24 days ago Likely open · 56%

Staff Software Engineer, Exchange Platform

≈ $165k – $293k per year (Estimated) · Equity · Staff+ · 8+ years exp · In office (London, United Kingdom) · Staff
DynamoDB
Amazon Aurora
DevOps
Self-Healing
Amazon EKS
Amazon EC2
Amazon ECS
Docker
Kubernetes
AWS
+1
Apply
Verified live · 4 hours ago Visa sponsor 2 months ago Likely open · 46%

Senior Software Engineer, Prime

≈ $100k – $194k per year (Estimated) · Equity · Senior · In office (London, United Kingdom) · Senior
Go
Python
JavaScript
Python
Django
Frontend
Vue.js
Apply
Verified live · 4 hours ago Visa sponsor 3 months ago Long shot · 14%

Senior Software Engineer, Custody Services

≈ $102k – $199k per year (Estimated) · Equity · Senior · In office (London, United Kingdom) · Senior
Go
Python
DevOps
Configuration Management
Prometheus
Grafana
Ansible
Terraform
Docker
Kubernetes
AWS
Web3
Staking
+3
Apply

H Company

hcompany.ai
hcompany.ai · HQ: Paris, France · Foundation Models · AI Research Labs · AI Agents · 201-500 employees · Est. 2023 · Startup · Trust A · Hiring 33, 1 new
HQ: Paris, France · Foundation Models · AI Research Labs · AI Agents · 201-500 employees · Est. 2023 · Startup · Trust A · Hiring 33, 1 new
H Company is an artificial intelligence research company headquartered in Paris, France, and founded in 2023 by Charles Kantor with a founding team drawn largely from Google DeepMind. The company develops agentic AI systems, including Runner H, an agent that carries out multi-step tasks in a browser on the user's behalf. It raised one of the largest seed rounds in European history and positions itself as a French alternative in the agent tooling market.
No named decision-maker yet.
Careers mailbox is known
Verified live · 2 hours ago 24 days ago Hiring now · 90%

Senior Full Stack Engineer

≈ $89k – $172k per year (Estimated) · Senior · Hybrid (London, United Kingdom, Paris, France) · Full-Time · Senior
TypeScript
Python
JavaScript
Python
FastAPI
Frontend
Preact
DevOps
WebSockets
QA
Chrome DevTools
Apply
Verified live · 2 hours ago 1 month ago Hiring now · 81%

Senior Software Engineer - London

≈ $87k – $170k per year (Estimated) · Senior · 5+ years exp · Hybrid (London, United Kingdom, Paris, France) · Full-Time · Senior
Python
Python
FastAPI
Dask
Databases
RabbitMQ
Apache Kafka
PostgreSQL
AI/ML
Computer Use
LLM
Machine Learning
Frontend
GraphQL
DevOps
Datadog
Grafana
Rest API
Docker
Kubernetes
AWS
QA
Selenium
Playwright
+10
Apply

Kraken Technologies

kraken.tech
kraken.tech · HQ: London, United Kingdom · Custom Software Development · Energy Management · 11-50 employees · Est. 2016 · Trust A · Hiring 57, 6 new
HQ: London, United Kingdom · Custom Software Development · Energy Management · 11-50 employees · Est. 2016 · Trust A · Hiring 57, 6 new
Kraken Technologies is a software company headquartered in London that builds Kraken, an operating platform for energy and utility companies covering billing, customer service, smart meter data, flexibility and grid operations. Created inside Octopus Energy Group in 2016, it now licenses its platform to energy suppliers and utilities such as EDF, E.ON Next, Origin Energy and Tokyo Gas, managing tens of millions of customer accounts worldwide. It hires software engineers, client data and analytics leads, implementation and delivery managers, people and compensation specialists and commercial staff.
No named decision-maker yet.
No careers mailbox known
Verified live · 5 hours ago 24 days ago Likely open · 60%

Senior Software Engineer - Comms

≈ $102k – $198k per year (Estimated) · Senior · Hybrid (London, United Kingdom) · Full-Time · Senior
Python
JavaScript
Python
Django
Celery
Databases
PostgreSQL
Frontend
HTMX
Redux
Mobile
Twilio
DevOps
Rest API
AWS
Cybersecurity
GDPR
+3
Apply
Verified live · 5 hours ago 2 months ago Fading · 37%

Senior Software Engineer

≈ $103k – $199k per year (Estimated) · Senior · Hybrid (London, United Kingdom) · Full-Time · Senior
Python
Python
Django
Celery
Databases
PostgreSQL
Frontend
Redux
DevOps
Terraform
Rest API
AWS
Cybersecurity
GDPR
+1
Apply
Verified live · 5 hours ago 3 months ago Long shot · 12%

Senior Software Engineer - AI Foundations

≈ $106k – $205k per year (Estimated) · Senior · Hybrid (London, Manchester, United Kingdom, Paris, France, Berlin, Germany) · Full-Time · Senior
Python
Python
Django
AI/ML
LiteLLM
OpenAI Codex
LLM Evaluation
LLM Guardrails
Model Context Protocol
Claude Code
Claude
LLM
AI Agents
Embeddings
Pydantic AI
AWS Bedrock
Knowledge Graph
Red Teaming
LangChain
RAG
DevOps
GitHub
Kubernetes
AWS
OpenTelemetry
Datadog
Cybersecurity
GDPR
+16
Apply
som.org.uk · HQ: London, United Kingdom · Standards & Industry Bodies · Occupational Health · 51-200 employees · Est. 1935 · Hiring 2
HQ: London, United Kingdom · Standards & Industry Bodies · Occupational Health · 51-200 employees · Est. 1935 · Hiring 2
Society for all health professionals, providing occupational health and medicine in workplaces, including the NHS, private sector, councils, armed services in the UK and internationally.
No named decision-maker yet.
Careers mailbox is known
Verified live · 5 hours ago 25 days ago Likely open · 58%

Principal Technical Lead

≈ $95k – $192k per year (Estimated) · Lead · Hybrid (London, United Kingdom) · PhD · Principal
C#
TypeScript
Java
Python
Python
FastAPI
C#
ASP.NET Core
Entity Framework Core
SignalR
Databases
PostgreSQL
Mobile
Dependency Injection
DevOps
Azure DevOps
Rest API
Kubernetes
Azure
CI/CD
Design
Figma
Management
Agile
+9
Apply

Deloitte

deloitte.com
deloitte.com · HQ: London, United Kingdom · Management Consulting · Financial Advisory, Valuation & Restructuring · Tax Advisory & Preparation · Audit & Assurance Firms · 1001-5000 employees · Est. 1845 · Trust A · Hiring 504, 97 new
HQ: London, United Kingdom · Management Consulting · Financial Advisory, Valuation & Restructuring · Tax Advisory & Preparation · Audit & Assurance Firms · 1001-5000 employees · Est. 1845 · Trust A · Hiring 504, 97 new
Deloitte is one of the "Big Four" global accounting and professional services firms, providing audit, tax, consulting, and risk advisory services to organizations worldwide. Founded in London in 1845, it operates as a multinational network of independent member firms spanning over 150 countries and territories. Known for its extensive market reach and industry expertise, the organization serves a vast majority of the Fortune Global 500 companies.
No named decision-maker yet.
No careers mailbox known
Verified live · 5 hours ago Visa sponsor 25 days ago Long shot · 21%

IM&W Technical Delivery Lead, Technology Programme Delivery, Engineering, Technology & Transformation

≈ $87k – $176k per year (Estimated) · Lead · Hybrid (London, United Kingdom) · Staff
Azure DevOps
Azure
GCP
AWS
Management
Confluence
Jira
Agile
Apply
Verified live · 5 hours ago Visa sponsor 25 days ago Long shot · 21%

Contract - Software Development Team Lead

≈ $93k – $186k per year (Estimated) · Lead · In office (London, United Kingdom) · Contractor · Staff
TypeScript
Python
JavaScript
Python
FastAPI
Databases
PostgreSQL
AI/ML
Claude Code
Semantic Search
Agentic Workflows
LLM
Frontend
React.js
DevOps
Rest API
Kubernetes
CI/CD
Platform Engineering
GCP
Management
BPMN
+8
Apply
Verified live · 5 hours ago Visa sponsor 25 days ago Long shot · 14%

Consultant - Manager, Backend Developer - Tech Consultancy - Defence & Security

≈ $67k – $163k per year (Estimated) · Hybrid (London, United Kingdom)
Node JS
TypeScript
JavaScript
Python
Java
Python
FastAPI
Java
Spring Boot
Databases
PostgreSQL
DevOps
AWS Lambda
GitLab
Jenkins
AWS
Cybersecurity
OWASP
Management
Kanban
Scrum
Agile
+8
Apply

Ankura

ankura.com
ankura.com · HQ: Washington, United States · Financial Advisory, Valuation & Restructuring · Management Consulting · 1001-5000 employees · Est. 2014 · Trust B · Hiring 74, 5 new
HQ: Washington, United States · Financial Advisory, Valuation & Restructuring · Management Consulting · 1001-5000 employees · Est. 2014 · Trust B · Hiring 74, 5 new
Ankura is a business advisory and expert services firm headquartered in Washington, DC, offering disputes and economics, forensics and investigations, turnaround and restructuring, risk and compliance, cybersecurity and data privacy, transaction and strategic communications services. Founded in 2014, it works from offices across North America, Europe, the Middle East and Asia Pacific, opened a Riyadh office in 2023 and since 2025 includes the public affairs agency Red Flag. Hiring covers university associates and interns in disputes, valuation and forensics, restructuring managing directors, cybersecurity architects, conflict analysts and public affairs account staff.
Roy Messing · Executive Officer · decision-maker
Cherie Schaible · Executive Officer · decision-maker
Philip Dadonna · Executive Officer · decision-maker
Kevin Lavin · Executive Officer · decision-maker
No careers mailbox known
Verified live · 7 hours ago 25 days ago Fading · 44%

Digital Advisory Associate (Sept 2027 Graduate Programme)

≈ $37k – $52k per year (Estimated) · Junior · In office (London, United Kingdom) · Full-Time · Junior
OpenAI Codex
Cursor
Claude Code
DevOps
GitHub
Apply

CACI

caci.co.uk
caci.co.uk · London · Bristol · Hyderabad · Pune · Cheltenham · Design & Creative · Sales & Marketing · Professional Services · 1001-5000 employees · Est. 1975 · Trust B · Hiring 36, 3 new
London · Bristol · Hyderabad · Pune · Cheltenham · Design & Creative · Sales & Marketing · Professional Services · 1001-5000 employees · Est. 1975 · Trust B · Hiring 36, 3 new
At CACI, we connect data, technology, and human insight to build smarter, scalable solutions that fuel progress and create real-world impact.
No named decision-maker yet.
Careers mailbox is known
Verified live · 2 hours ago Visa sponsor 25 days ago Likely open · 52%

Junior Technical Architect

≈ $52k – $121k per year (Estimated) · Junior · Hybrid (London, United Kingdom) · Bachelor's Degree · Junior
AWS
Apply
Verified live · 2 hours ago Visa sponsor 2 months ago Fading · 30%

Senior Software Engineer

≈ $86k – $166k per year (Estimated) · Senior · In office (London, United Kingdom) · Senior
TypeScript
JavaScript
Frontend
React.js
DevOps
GitLab
Azure
CI/CD
AWS
Management
Agile
Apply
Verified live · 2 hours ago Visa sponsor 2 months ago Long shot · 18%

Full Stack Developer

≈ $68k – $166k per year (Estimated) · In office (London, United Kingdom)
PHP
JavaScript
PHP
Laravel
PHPUnit
Pest
Frontend
Vue.js
React.js
Mobile
React Native
DevOps
Git
CI/CD
Docker
Azure
AWS
+5
Apply

easyJet

easyjet.com
easyjet.com · HQ: Luton, United Kingdom · Space & Aerospace · Commercial Aviation · 5000+ employees · Est. 1995 · Hiring 39, 6 new
HQ: Luton, United Kingdom · Space & Aerospace · Commercial Aviation · 5000+ employees · Est. 1995 · Hiring 39, 6 new
easyJet is a major British multinational low-cost airline group that operates domestic and international point-to-point passenger flights alongside holiday travel packages. Headquartered at London Luton Airport in Luton, United Kingdom, the carrier connects hundreds of key European airports and leisure destinations with an extensive fleet of modern aircraft. Founded in 1995, it has grown into one of Europe's largest aviation networks, recognized for its budget-friendly travel model and prominent regional presence.
No named decision-maker yet.
No careers mailbox known
Verified live · 1 day ago 25 days ago Fading · 35%

Lead Platform Architect - Airline Operations

≈ $96k – $194k per year (Estimated) · Lead · Hybrid (London, United Kingdom) · Architect
Apply
Verified live · 1 day ago 25 days ago Fading · 35%

Lead Software Engineer

≈ $97k – $195k per year (Estimated) · Lead · Hybrid (London, United Kingdom) · Staff
Java
C#
C#
.NET
AI/ML
Claude Code
DevOps
CI/CD
AWS
Docker
Kubernetes
Apply
Verified live · 1 day ago 25 days ago Fading · 36%

Senior Software Engineer

≈ $85k – $165k per year (Estimated) · Senior · Hybrid (London, United Kingdom) · Senior
Java
C#
C#
.NET
DevOps
CI/CD
AWS
Docker
Kubernetes
Apply
Machines can read this selection · checked 20:52 UTC
Backend Developer Jobs in London
Frequently asked questions
How many Backend Developer jobs in London are available on Alion?
There are currently 1060 active listings from 474 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in London pay?
The average salary is around $213,465 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.