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 $190,840/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

Epiq

epiqglobal.com
epiqglobal.com · HQ: New York, United States · Legal Software · Legal Services · 5000+ employees · Est. 1988 · Trust A · Hiring 78, 6 new
HQ: New York, United States · Legal Software · Legal Services · 5000+ employees · Est. 1988 · Trust A · Hiring 78, 6 new
Headquartered in New York, Epiq (Epiq Global) is a global technology-enabled provider of legal, compliance, and business services. The firm delivers data-driven solutions across eDiscovery, litigation management, regulatory compliance, class action and mass tort administration, corporate bankruptcy restructuring, and contract lifecycle management (CLM).
No named decision-maker yet.
No careers mailbox known
Verified live · 3 hours ago 2 months ago Long shot · 15%

Senior Consultant, Product Engineer

≈ $79k – $161k per year (Estimated) · Senior · 7+ years exp · London · Remote (United Kingdom) · Full-Time · Senior
TypeScript
JavaScript
AI/ML
Hybrid Search
Together AI
Context Engineering
Semantic Search
Model Context Protocol
OpenAI
RAG
Copilot
Frontend
Zustand
Redux
Tailwind CSS
Next.js
Vite
React Query
Storybook
Material UI
Fluent UI
React.js
DevOps
Azure
CI/CD
Management
SharePoint
QA
Playwright
Jest
+17
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Writer

writer.com
writer.com · HQ: San Francisco, United States · Vector Search & RAG · Foundation Models · LLM & Generative AI · AI Agents · 5000+ employees · Est. 2020 · Hiring 46
HQ: San Francisco, United States · Vector Search & RAG · Foundation Models · LLM & Generative AI · AI Agents · 5000+ employees · Est. 2020 · Hiring 46
Writer is an enterprise generative artificial intelligence company headquartered in San Francisco, California, and founded in 2020. The company provides a full-stack platform that includes proprietary large language models, an integrated graph-based retrieval-augmented generation system, and tools for building autonomous AI agents. It serves Fortune 500 companies across sectors such as financial services, healthcare, and retail, focusing on delivering secure and compliant AI applications for marketing, sales, and operations.
May Habib · Executive Officer, Director · decision-maker
Waseem Alshikh · Executive Officer, Director · decision-maker
Jennifer Fonstad · Director
Doug Pepper · Director
Careers mailbox is known
Verified live · 3 hours ago 2 months ago Likely open · 62%

Software engineer, agents (UK)

≈ $75k – $171k per year (Estimated) · Equity · Middle · 3+ years exp · Hybrid (London, United Kingdom) · Full-Time · Middle
TypeScript
Python
JavaScript
AI/ML
LangGraph
Cursor
Claude Code
AI Agents
LangChain
Frontend
React.js
DevOps
Docker
GCP
Kubernetes
Azure
CI/CD
AWS
+7
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WeBuild-AI

webuild-ai.com
webuild-ai.com · HQ: London, United Kingdom · Custom Software Development · AI Consulting & Integration · 1-10 employees · Est. 2024 · Startup · Trust B · Hiring 5
HQ: London, United Kingdom · Custom Software Development · AI Consulting & Integration · 1-10 employees · Est. 2024 · Startup · Trust B · Hiring 5
Unlock your AI transformation with WeBuild-AI today. We create 10x value for enterprise organisations by defining and delivering AI, data & digital strategies and solutions.
No named decision-maker yet.
Careers mailbox is known
Verified live · 4 hours ago Visa sponsor 2 months ago Long shot · 23%

Lead Software Engineer

≈ $100k – $200k per year (Estimated) · Lead · Hybrid (London, United Kingdom) · Staff
TypeScript
Java
Python
JavaScript
AI/ML
TensorFlow
PyTorch
Frontend
React.js
DevOps
Docker
GCP
Kubernetes
Azure
CI/CD
AWS
+5
Apply
Open 227 daysVerified live · 4 hours ago Visa sponsor 8 months ago Long shot · 7%

Principal Software Engineer

≈ $99k – $200k per year (Estimated) · Lead · Hybrid (London, United Kingdom) · Principal
TypeScript
Python
DevOps
CI/CD
Apply

ClearRoute

clearroute.io
clearroute.io · London · Sofia · Pune · Bengaluru · IT Consulting & Digital Transformation · DevOps & Platform Engineering · 51-200 employees · Est. 2024 · Startup · Trust A · Hiring 18, 2 new
London · Sofia · Pune · Bengaluru · IT Consulting & Digital Transformation · DevOps & Platform Engineering · 51-200 employees · Est. 2024 · Startup · Trust A · Hiring 18, 2 new
REENGINEER YOUR ROUTE TO LIVE. ClearRoute is a global AI-native platform engineering consultancy that helps enterprises transform the Route to Live (RtL). To reliably bring high-impact digital products to market faster, cheaper, and safer.
No named decision-maker yet.
Careers mailbox is known
Verified live · 29 min ago Visa sponsor 2 months ago Likely open · 50%

Full Stack Developer

Hybrid (London, United Kingdom) · Contractor
TypeScript
JavaScript
Python
AI/ML
LLM
AI Agents
Frontend
React.js
DevOps
Platform Engineering
Docker
Azure
CI/CD
AWS
+3
Apply
Verified live · 29 min ago Visa sponsor 2 months ago Likely open · 59%

Full Stack Engineer

≈ $89k – $175k per year (Estimated) · Senior · Hybrid (London, United Kingdom) · Contractor
Kotlin
JavaScript
AI/ML
Claude
Gemini
Frontend
React.js
DevOps
Platform Engineering
Apply
Verified live · 29 min ago 3 months ago Fading · 27%

Senior Software Engineer: Agentic Development Enablement

≈ $90k – $174k per year (Estimated) · Senior · Hybrid (London, United Kingdom) · Full-Time · Senior
LLM Guardrails
Claude Code
Copilot
AI Agents
DevOps
Platform Engineering
CI/CD
AWS
Apply

Benifex

benifex.com
benifex.com · Stockholm · Southampton · Gothenburg · London · Amsterdam · HR & Payroll Software · Human Resources · Est. 2003 · Trust A · Hiring 14, 1 new
Stockholm · Southampton · Gothenburg · London · Amsterdam · HR & Payroll Software · Human Resources · Est. 2003 · Trust A · Hiring 14, 1 new
Benifex offers the market’s leading global benefits and total rewards platform. Engage your employees anywhere, anytime. What's next for your benefits?
No named decision-maker yet.
Careers mailbox is known
Verified live · 1 hour ago 2 months ago Long shot · 18%

Senior Backend Engineer (Python & .Net)

Senior · In office (London, United Kingdom) · Full-Time · Senior
C#
Java
SQL
Python
Java
Spring Boot
C#
.NET
Databases
Redis
AI/ML
Langfuse
Cursor
Claude Code
Copilot
AI Agents
LangGraph
Google ADK
LangChain
Model Context Protocol
RAG
DevOps
GCP
CI/CD
Grafana
Kubernetes
+13
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BT Group

bt.com
bt.com · HQ: London, United Kingdom · Telecommunications · Broadband · 5000+ employees · Est. 2001 · Trust A · Hiring 58, 17 new
HQ: London, United Kingdom · Telecommunications · Broadband · 5000+ employees · Est. 2001 · Trust A · Hiring 58, 17 new
BT Group is the largest telecommunications provider in the United Kingdom, with roots in the electric telegraph company founded in 1846. It runs consumer broadband and mobile through EE, enterprise networking and the Openreach access network. The company employs tens of thousands of engineers and operates one of the biggest research sites in Britain at Adastral Park.
No named decision-maker yet.
No careers mailbox known
Verified live · 8 hours ago Visa sponsor 2 months ago Long shot · 10%

Software Engineering Specialist

≈ $71k – $173k per year (Estimated) · In office (London, United Kingdom)
Apply

Zendesk

zendesk.com
zendesk.com · HQ: San Francisco, United States · CRM Software · Customer Support & Help Desk Software · 1001-5000 employees · Est. 2007 · Trust B · Hiring 141, 8 new
HQ: San Francisco, United States · CRM Software · Customer Support & Help Desk Software · 1001-5000 employees · Est. 2007 · Trust B · Hiring 141, 8 new
Zendesk is a cloud-based software company specializing in customer service, CRM, and user engagement solutions. Headquartered in San Francisco, California, the company provides omnichannel support ticketing, live chat, customer analytics, and AI-powered help desk software for businesses worldwide. Serving clients from startups to large enterprises across nearly every major industry, the organization focuses on helping companies streamline customer communications and manage support operations.
No named decision-maker yet.
No careers mailbox known
Verified live · 2 hours ago 2 months ago Long shot · 24%

Technical Architect (German Language)

≈ $131k – $278k per year (Estimated) · Staff+ · 3+ years exp · Hybrid (Dublin, Ireland, London, United Kingdom) · Bachelor's Degree · Full-Time · Architect · German: C1 · English: C1
Ruby
C#
JavaScript
Python
AI/ML
Machine Learning
Management
Freshdesk
ServiceNow
Apply

Netcraft

netcraft.com
netcraft.com · HQ: Bath, United Kingdom · Commerce · Artificial Intelligence · Cybersecurity · Fraud Detection · Brand Protection & Anti-Counterfeiting · Threat Intelligence · 201-500 employees · Est. 1995 · Trust A · Hiring 15, 3 new
HQ: Bath, United Kingdom · Commerce · Artificial Intelligence · Cybersecurity · Fraud Detection · Brand Protection & Anti-Counterfeiting · Threat Intelligence · 201-500 employees · Est. 1995 · Trust A · Hiring 15, 3 new
Netcraft is a Bath company founded in 1995 that is best known for its long running survey of web server software. Its main business is detecting and taking down phishing sites, fraud and malware on behalf of banks and governments. The company disrupts millions of malicious sites each year from its British base.
No named decision-maker yet.
Careers mailbox is known
Verified live · 2 hours ago Visa sponsor 2 months ago Likely open · 65%

Software Engineering Intern

≈ $71k – $173k per year (Estimated) · Intern · In office (London, United Kingdom) · Internship · Intern · English: C1
Apply
Verified live · 2 hours ago Visa sponsor 2 months ago Hiring now · 81%

Backend Engineering Team Lead

≈ $100k – $202k per year (Estimated) · Lead · In office (London, United Kingdom) · Staff
Perl
Go
Databases
OpenSearch
AI/ML
Machine Learning
DevOps
CI/CD
AWS
Cybersecurity
SIEM
Apply

Zeit AI

zeit-ai.com
zeit-ai.com · HQ: Munich, Germany · AI Agents · 51-200 employees · Startup · Trust B · Hiring 6
HQ: Munich, Germany · AI Agents · 51-200 employees · Startup · Trust B · Hiring 6
Meet the Zeit AI team. A small, Munich-based team of engineers, builders and operators backed by Y Combinator. Our story, our principles, and the people building ZeitMind.
No named decision-maker yet.
Careers mailbox is known
Top 25% payVerified live · 3 hours ago 2 months ago Fading · 44%

Staff Backend Engineer, Platform

$106k – $301k per year · Staff+ · In office (Munich, Germany, London, United Kingdom) · Relocation · Full-Time · Staff · English: C1
TypeScript
JavaScript
Databases
PostgreSQL
Supabase
Snowflake
Databricks
AI/ML
AI Agents
Frontend
tRPC
Mantine
React.js
DevOps
WebSockets
Docker
Cloudflare
VPN
+6
Apply

PhysicsX

physicsx.ai
physicsx.ai · HQ: London, United Kingdom · AI for Science · Simulation & Digital Twin Software · Industrial AI · 201-500 employees · Est. 2019 · Startup · Trust A · Hiring 37, 4 new
HQ: London, United Kingdom · AI for Science · Simulation & Digital Twin Software · Industrial AI · 201-500 employees · Est. 2019 · Startup · Trust A · Hiring 37, 4 new
PhysicsX is a deep technology company that develops artificial intelligence and simulation software to accelerate engineering and advanced manufacturing. Founded by former Formula One engineers and computer scientists, the organization uses physics-informed AI and deep learning to optimize complex designs in fields like aerospace, automotive, and renewable energy. By replacing traditional, time-intensive physics simulations with real-time machine learning models, it enables companies to innovate faster and dramatically improve performance.
No named decision-maker yet.
Careers mailbox is known
Verified live · 13 min ago Visa sponsor 2 months ago Hiring now · 81%

Staff Software Engineer, Infrastructure - Python & Kubernetes

≈ $171k – $304k per year (Estimated) · Equity · Staff+ · 5+ years exp · Hybrid (London, United Kingdom) · Bachelor's Degree · Staff
Erlang
Elixir
OCaml
Go
Python
DevOps
Istio
Crossplane
Service Mesh
SLI/SLO/SLA
Terraform
GCP
Kubernetes
Azure
AWS
GitOps
ArgoCD
External Secrets
Octopus Deploy
Platform Engineering
+11
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Runna

runna.com
runna.com · HQ: Cardiff, United Kingdom · Fitness · Consumer Health Apps · 51-200 employees · Est. 2022 · Hiring 10
HQ: Cardiff, United Kingdom · Fitness · Consumer Health Apps · 51-200 employees · Est. 2022 · Hiring 10
Runna is the world’s best running coaching app, making expert coaching affordable and accessible for everyone. Get started.
No named decision-maker yet.
Careers mailbox is known
Verified live · 3 hours ago 2 months ago Fading · 39%

Senior Software Engineer I (Growth)

$94k – $104k per year · Senior · 2+ years exp · Hybrid (London, United Kingdom) · Full-Time · Senior
TypeScript
JavaScript
Kotlin
Swift
Node JS
Databases
DynamoDB
Snowflake
Frontend
GraphQL
Apollo Client
React.js
Mobile
React Native
RevenueCat
DevOps
CI/CD
Amazon EventBridge
Amazon S3
GitHub Actions
AWS
Analytics
A/B Testing
Management
Intercom
QA
Sentry
+12
Apply
Verified live · 3 hours ago 2 months ago Fading · 40%

Staff Software Engineer (Full Stack)

$147k – $175k per year · Staff+ · 6+ years exp · Hybrid (London, United Kingdom) · Full-Time · Staff
TypeScript
JavaScript
Swift
Node JS
Python
Databases
DynamoDB
Snowflake
AI/ML
Agentic Workflows
LLM
AI Agents
Frontend
GraphQL
Apollo Client
React.js
Mobile
SwiftUI
React Native
Fastlane
RevenueCat
Maestro
DevOps
CloudFormation
Amazon EKS
AWS Lambda
Amazon ECS
API Gateway
Terraform
CI/CD
AWS
Amazon EventBridge
Amazon S3
GitHub Actions
Kubernetes
Management
Intercom
+23
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Open 192 daysVerified live · 3 hours ago 7 months ago Long shot · 9%

Senior Software Engineer I (Full-Stack)

$94k – $105k per year · Senior · Hybrid (London, United Kingdom) · Full-Time · Senior
Kotlin
Swift
Node JS
TypeScript
JavaScript
Python
Databases
DynamoDB
Snowflake
AI/ML
Cursor
Claude Code
Frontend
GraphQL
React.js
Mobile
SwiftUI
React Native
DevOps
GitHub
CI/CD
CloudFormation
Terraform
AWS
+11
Apply

Delfa

delfa.ai
delfa.ai · HQ: Venice, Italy · Machine Learning · Clinical Trial Services (CRO) · 1-10 employees · Est. 1988 · Hiring 2
HQ: Venice, Italy · Machine Learning · Clinical Trial Services (CRO) · 1-10 employees · Est. 1988 · Hiring 2
Clinical research sites use Delfa to recruit and retain more patients through always-on AI agents working to save them hours per day.
No named decision-maker yet.
Careers mailbox is known
Verified live · 20 min ago Visa sponsor 2 months ago Fading · 27%

Founding Engineer

≈ $68k – $154k per year (Estimated) · Middle · 3+ years exp · In office (London, United Kingdom) · PhD · Full-Time · Middle
TypeScript
Python
Python
FastAPI
Databases
PostgreSQL
AI/ML
AI Agents
Anthropic
OpenAI
DevOps
Honeycomb
Azure
+1
Apply

Voy

joinvoy.com
joinvoy.com · HQ: London, United Kingdom · Pharmacies · Weight Management · Telemedicine & Virtual Care · Medical Laboratories · 501-1000 employees · Likely startup · Hiring 57, 9 new
HQ: London, United Kingdom · Pharmacies · Weight Management · Telemedicine & Virtual Care · Medical Laboratories · 501-1000 employees · Likely startup · Hiring 57, 9 new
Voy is a London-based digital health company offering online clinical programs in weight management, menopause care, testosterone replacement therapy, hair loss, dermatology, mental health and diagnostic testing, supported by its own pharmacy and laboratory operations. The company reports about $675 million in annualised revenue growing around 130 percent a year and operates in the United Kingdom, Brazil, Germany and India, with laboratory staff in Wallingford and teams in Berlin and São Paulo. It hires doctors and clinical leads, biomedical scientists and lab assistants, growth and CRM marketers, designers, patient experience specialists and operations staff.
No named decision-maker yet.
No careers mailbox known
Verified live · 1 hour ago 2 months ago Long shot · 21%

Backend Engineer

≈ $72k – $176k per year (Estimated) · Hybrid (London, United Kingdom)
Node JS
TypeScript
JavaScript
DevOps
CI/CD
Apply

Terrific

terrific.com
terrific.com · HQ: Tel Aviv, Israel · Social Commerce · 201-500 employees · Trust A · Hiring 11, 1 new
HQ: Tel Aviv, Israel · Social Commerce · 201-500 employees · Trust A · Hiring 11, 1 new
Terrific is a social commerce company that helps brands engage customers, with teams serving media, real estate, fashion and beauty accounts. It hires customer success managers, revenue operations leads and media sales specialists across Latin America. The company is headquartered in Tel Aviv, Israel.
No named decision-maker yet.
No careers mailbox known
Verified live · 2 hours ago 2 months ago Hiring now · 76%

Product Engineer — Monetization & Commerce Data

≈ $88k – $179k per year (Estimated) · Senior · 5+ years exp · London · Remote (Europe, European time zones hours) · Contractor · Senior · English: C1
Go
Node JS
TypeScript
SQL
JavaScript
Databases
Google BigQuery
Apply

NTT DATA

nttdata.com
nttdata.com · HQ: Tokyo, Toyosu, Japan · Health Care · Cybersecurity · Data Centers & Colocation · Information Technology · Managed IT Services (MSP) · Financial Software & Embedded Finance · IT Consulting & Digital Transformation · Systems Integrators · 5000+ employees · Est. 1988 · Trust A · Hiring 1688, 230 new
HQ: Tokyo, Toyosu, Japan · Health Care · Cybersecurity · Data Centers & Colocation · Information Technology · Managed IT Services (MSP) · Financial Software & Embedded Finance · IT Consulting & Digital Transformation · Systems Integrators · 5000+ employees · Est. 1988 · Trust A · Hiring 1688, 230 new
NTT DATA is a Tokyo system integrator founded in 1988 that spun out of the data communications arm of NTT. It is one of the largest information technology services firms in the world, building banking, public sector and payment systems and operating global consulting and managed services. The company runs the CAFIS payment network used across Japanese retail and banking.
Abhijit Dubey · 代表取締役社長 · decision-maker
No careers mailbox known
Verified live · 3 hours ago Visa sponsor 2 months ago Long shot · 18%

Lead Technical Architect

≈ $90k – $182k per year (Estimated) · Lead · In office (London, United Kingdom) · Full-Time · Architect
Azure
AWS
Management
Agile
Apply
Verified live · 3 hours ago Visa sponsor 2 months ago Long shot · 21%

Technical Architect

≈ $131k – $233k per year (Estimated) · Staff+ · In office (London, United Kingdom) · Full-Time · Architect
Java
Python
C#
C#
.NET
DevOps
GCP
Azure
AWS
Management
Agile
Apply
vm.co.mz · HQ: Maputo, Mozambique · Money Transfer & Remittances · Internet Service Providers · Mobile Networks · 1001-5000 employees · Est. 2003 · Trust A · Hiring 498, 69 new
HQ: Maputo, Mozambique · Money Transfer & Remittances · Internet Service Providers · Mobile Networks · 1001-5000 employees · Est. 2003 · Trust A · Hiring 498, 69 new
Vodacom Moçambique is a telecommunications operator and mobile financial services provider. The company offers prepaid and postpaid mobile voice and data connectivity, broadband services, enterprise IT and telecom solutions, and the M-Pesa mobile money platform for digital payments, transfers, and financial inclusion services. Headquartered in Maputo, Mozambique, the enterprise serves individual consumers, small businesses, and corporate clients across the country.
No named decision-maker yet.
No careers mailbox known
Verified live · 2 days ago 2 months ago Long shot · 24%

Platform Technical Lead (Cloud Infrastructure & AI Enablement)

≈ $103k – $208k per year (Estimated) · Lead · 10+ years exp · Hybrid (London, United Kingdom) · Staff
LLM
DevOps
Platform Engineering
Kubernetes
CI/CD
Apply
Verified live · 2 days ago 2 months ago Long shot · 18%

Platform Architect

≈ $144k – $255k per year (Estimated) · Staff+ · 8+ years exp · Hybrid (London, United Kingdom) · Architect
Platform Engineering
Management
Agile
Apply
Verified live · 2 days ago 2 months ago Long shot · 16%

Platform Technical Lead (Order Management & Fulfilment)

≈ $106k – $213k per year (Estimated) · Lead · 5+ years exp · Hybrid (London, United Kingdom) · Bachelor's Degree · Staff
Platform Engineering
Apply

FlexTrade

flextrade.com
flextrade.com · HQ: Great Neck, United States · Financial Software & Embedded Finance · Est. 1996 · Trust B · Hiring 24
HQ: Great Neck, United States · Financial Software & Embedded Finance · Est. 1996 · Trust B · Hiring 24
FlexTrade Systems is a financial technology company headquartered in Great Neck, New York, providing multi-asset execution and order management trading systems for buy-side and sell-side institutions. Founded in 1996, it builds products such as the FlexTRADER EMS, FlexONE OEMS and FlexOMS covering equities, fixed income, FX, futures, options and digital assets for asset managers, hedge funds, pension funds and brokers, with offices in London, Pune, Singapore, Sydney and Milwaukee. It hires software developers in C++, Java, Scala and Go, technical analysts, SDETs, project managers, account managers and client services and sales staff.
No named decision-maker yet.
Careers mailbox is known
Verified live · 4 hours ago Visa sponsor 2 months ago Hiring now · 80%

Principal Software Developer (Web)

≈ $92k – $184k per year (Estimated) · Lead · In office (London, United Kingdom) · Principal
Scala
TypeScript
Java
JavaScript
Scala
Play Framework
Frontend
AG Grid
React.js
Mobile
React Native
MVP
DevOps
gRPC
GitLab
Jenkins
Rest API
Cybersecurity
SonarQube
Management
Agile
+7
Apply
Verified live · 4 hours ago Visa sponsor 2 months ago Likely open · 62%

Associate Software Developer (Web)

≈ $47k – $110k per year (Estimated) · Junior · In office (London, United Kingdom) · Junior
Scala
TypeScript
Java
JavaScript
Scala
Play Framework
Frontend
AG Grid
React.js
Mobile
React Native
DevOps
gRPC
Git
GitLab
Jenkins
Rest API
Cybersecurity
SonarQube
Management
Agile
+7
Apply

SilverRail

silverrail.com
silverrail.com · HQ: London, United Kingdom · Rail Transport · Travel Technology · 201-500 employees · Est. 2009 · Hiring 2
HQ: London, United Kingdom · Rail Transport · Travel Technology · 201-500 employees · Est. 2009 · Hiring 2
SilverRail is a travel technology company transforming the online customer experience for rail travel. Its platform helps rail operators sell tickets and journeys, and open roles include back end engineers, account directors and database administrators. The company is based in the United States.
No named decision-maker yet.
No careers mailbox known
Verified live · 2 hours ago 2 months ago Fading · 42%

Senior Software Engineer (back end)

≈ $83k – $160k per year (Estimated) · Senior · 5+ years exp · Hybrid (London, United Kingdom) · Senior
Java
Java
Hibernate
Spring Boot
Databases
MySQL
AI/ML
Claude Code
DevOps
GitLab
Rest API
Git
Docker
Kubernetes
CI/CD
AWS
Management
Agile
Scrum
+6
Apply

Thirdfort

thirdfort.com
thirdfort.com · HQ: London, United Kingdom · RegTech, AML & Compliance · Identity Management · 1-10 employees · Est. 2017 · Startup · Hiring 6
HQ: London, United Kingdom · RegTech, AML & Compliance · Identity Management · 1-10 employees · Est. 2017 · Startup · Hiring 6
Thirdfort is a London risk technology company founded in 2017 that verifies identity and source of funds for property transactions. Its app checks documents, biometrics and bank data so conveyancers can meet anti-money laundering duties without paper processes. The company works with thousands of law firms and estate agents.
No named decision-maker yet.
Careers mailbox is known
Verified live · 3 hours ago Visa sponsor 2 months ago Fading · 28%

Senior Software Engineer

up to $134k per year · Senior · Hybrid (London, United Kingdom) · Full-Time · Senior
Go
TypeScript
JavaScript
AI/ML
Cursor
Claude Code
Copilot
Frontend
React.js
DevOps
GCP
AWS
+1
Apply

Cogna

cogna.co
cogna.co · HQ: London, United Kingdom · Custom Software Development · AI Consulting & Integration · Est. 2023 · Startup · Hiring 3
HQ: London, United Kingdom · Custom Software Development · AI Consulting & Integration · Est. 2023 · Startup · Hiring 3
Headquartered in London, United Kingdom, Cogna is an artificial intelligence technology company that builds custom enterprise software for traditional industries like utilities, manufacturing, and infrastructure. Founded in 2023, the startup utilizes an AI-powered platform to automate the IT consultancy process and rapidly deploy solutions tailored to complex operational challenges.
No named decision-maker yet.
No careers mailbox known
Verified live · 6 hours ago Visa sponsor 2 months ago Hiring now · 77%

Software Engineer Intern (2027 Cohort)

Intern · In office (London, United Kingdom) · Internship · Intern
Rust
Haskell
OCaml
Go
C#
TypeScript
C++
Java
Python
AI/ML
OpenAI Codex
Cursor
Claude Code
AI Agents
Function Calling
LLM
Management
Notion
+8
Apply
Machines can read this selection · checked 15:39 UTC
Backend Developer Salary in London
Frequently asked questions
How many Backend Developer jobs in London are available on Alion?
There are currently 1269 active listings from 615 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in London pay?
The average salary is around $190,840 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.