Backend Developer Jobs in United Kingdom

Backend Developer jobs in United Kingdom hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $187,986/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

United Kingdom
AI/ML
Software
Data
Security
DevOps & Cloud
Leadership
Product
Design
Fintech
Hardware & Chips
Defense
Aerospace
Biotech
Energy
Robotics
Automotive
MedTech
Science
9,008 remote jobs are open to candidates in United Kingdom.Show remote jobs

Innatera

innatera.com
innatera.com · HQ: Delft, Netherlands · AI Chips & Accelerators · Processors, MCUs & AI Chips · 51-200 employees · Est. 2018 · Startup · Hiring 4
HQ: Delft, Netherlands · AI Chips & Accelerators · Processors, MCUs & AI Chips · 51-200 employees · Est. 2018 · Startup · Hiring 4
Innatera is a Dutch semiconductor company founded in 2018 as a spin-off of TU Delft. It designs neuromorphic processors that mimic the brain to run pattern recognition at extremely low power. The chips target always-on sensing in wearables, audio and radar applications.
No named decision-maker yet.
Careers mailbox is known
Verified live · 3 hours ago 6 months ago Long shot · 15%

Senior NPU SDK Software Engineer

≈ $64k – $108k per year (Estimated) · Senior · Hybrid (Rijswijk, Netherlands) · Bachelor's Degree · Full-Time · Senior
Python
C++
AI/ML
PyTorch
LiteRT
ExecuTorch
MLIR
IREE
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Seamflow

seamflow.com
seamflow.com · HQ: London, United Kingdom · Manufacturing & Industrial Software · Testing, Inspection & Certification · 1-10 employees · Est. 2025 · Startup · Trust B · Hiring 7
HQ: London, United Kingdom · Manufacturing & Industrial Software · Testing, Inspection & Certification · 1-10 employees · Est. 2025 · Startup · Trust B · Hiring 7
Seamflow is the AI-native operating system for testing, inspection, and certification (TIC) organizations. Automate MDR technical file reviews, notified body workflows, and certification processes — turning months into hours.
No named decision-maker yet.
Careers mailbox is known
Open 168 daysVerified live · 2 hours ago Visa sponsorship 6 months ago Long shot · 5%

Product Engineer

≈ $75k – $183k per year (Estimated) · In office (London, United Kingdom) · Relocation · Full-Time
Rust
TypeScript
C++
Python
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Assystem

assystem.com
assystem.com · HQ: Courbevoie, France · Nuclear Engineering · Nuclear Energy · Engineering Services · 5000+ employees · Est. 1966 · IT services · Trust B · Hiring 601, 30 new
HQ: Courbevoie, France · Nuclear Engineering · Nuclear Energy · Engineering Services · 5000+ employees · Est. 1966 · IT services · Trust B · Hiring 601, 30 new
Assystem is a French engineering group founded in 1966 that concentrates on complex infrastructure projects, with nuclear energy as its largest and most distinctive market. It provides design engineering, project management, safety analysis, commissioning support and operational assistance across nuclear new build, plant life extension and decommissioning, and also works on transport, energy transmission and life sciences facilities. Headquartered near Paris and listed on Euronext, it holds a significant stake in Framatome and employs thousands of engineers across France, the United Kingdom, the Middle East and Asia.
Stephane Aubarbier · Directeur général délégué · decision-maker
Dominique Louis · Chairman and Chief Executive Officer · decision-maker
Careers mailbox is known
Open 168 daysVerified live · 5 hours ago 6 months ago Long shot · 7%

Senior Software Engineer

≈ $68k – $132k per year (Estimated) · Senior · 8+ years exp · Hybrid (Bristol, United Kingdom) · Full-Time · Senior
C#
TypeScript
JavaScript
Python
Python
FastAPI
Django
Databases
RabbitMQ
Redis
Apache Kafka
PostgreSQL
Frontend
Vue.js
Angular
DevOps
Azure
CI/CD
Podman
Amazon S3
Docker
Kubernetes
Analytics
Talend
Apache NiFi
+12
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Neutreeno

neutreeno.com
neutreeno.com · HQ: Cambridge, United Kingdom · Energy Management · ESG & Carbon Accounting Software · 51-200 employees · Est. 2020 · Startup · Hiring 5, 1 new
HQ: Cambridge, United Kingdom · Energy Management · ESG & Carbon Accounting Software · 51-200 employees · Est. 2020 · Startup · Hiring 5, 1 new
Cut emissions, fix inefficiencies, unlock performance. Neutreeno delivers decision-grade carbon data 19x faster with 90% less data to drive results.
No named decision-maker yet.
Careers mailbox is known
Open 170 daysVerified live · 4 hours ago Visa sponsor 6 months ago Long shot · 9%

Senior Full Stack Software Engineer

≈ $83k – $160k per year (Estimated) · Equity · Senior · Hybrid (Cambridge, United Kingdom) · Full-Time · Senior
Node JS
TypeScript
Python
JavaScript
AI/ML
Agentic Workflows
AI Agents
Frontend
React.js
GraphQL
DevOps
CI/CD
AWS
Terraform
+3
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CDP

cdp.net
cdp.net · HQ: London, United Kingdom · ESG & Carbon Accounting Software · Nonprofits & Foundations · 501-1000 employees · Trust A · Hiring 10
HQ: London, United Kingdom · ESG & Carbon Accounting Software · Nonprofits & Foundations · 501-1000 employees · Trust A · Hiring 10
CDP can support your environmental journey – turning data into Earth-positive impact. The world’s only independent environmental disclosure system.
No named decision-maker yet.
Careers mailbox is known
Verified live · 5 hours ago 6 months ago Fading · 33%

Senior Software Engineer

$94k – $108k per year · Senior · In office (London, United Kingdom) · Full-Time · Senior
Node JS
TypeScript
Python
C#
JavaScript
C#
.NET
DevOps
Azure DevOps
Terraform
Azure
Analytics
Azure Data Factory
Power BI
Management
Agile
+4
Apply
Verified live · 5 hours ago 8 months ago Fading · 25%

Principal Engineer

$106k – $133k per year · Lead · In office (London, United Kingdom) · Full-Time · Principal
Node JS
C#
JavaScript
C#
.NET
Node JS
Nest.JS
Frontend
React.js
DevOps
Azure
Apply

Typeform

typeform.com
typeform.com · Barcelona · Software · Artificial Intelligence · Market Research · Survey & Forms Software · 51-200 employees · Est. 2012 · Hiring 11
Barcelona · Software · Artificial Intelligence · Market Research · Survey & Forms Software · 51-200 employees · Est. 2012 · Hiring 11
Typeform is a company that specializes in online form building and data collection. It provides a platform where businesses and organizations can create customized forms, surveys, quizzes, and more to gather deeper insights from their users or customers. Typeform aims to enhance user engagement with unique, branded form designs and integrates with various apps and tools to streamline the data collection process for B2B marketers, customer success, human resources, and other business operations.
No named decision-maker yet.
Careers mailbox is known
Verified live · 2 hours ago Visa sponsor 6 months ago Long shot · 12%

Full Stack Developer

≈ $61k – $134k per year (Estimated) · Middle · Germany · United Kingdom · Ireland · Netherlands · Spain · Remote (Germany, United Kingdom, Ireland, Netherlands, Spain) · Bachelor's Degree
Node JS
TypeScript
JavaScript
Frontend
Next.js
React.js
DevOps
Platform Engineering
GitHub Actions
Git
CI/CD
Management
Zapier
+2
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Capital on Tap

capitalontap.com
capitalontap.com · HQ: London, United Kingdom · Procurement & Spend Management · Business & SME Lending · Cards & Card Issuing · Est. 2012 · Startup · Trust A · Hiring 29, 2 new
HQ: London, United Kingdom · Procurement & Spend Management · Business & SME Lending · Cards & Card Issuing · Est. 2012 · Startup · Trust A · Hiring 29, 2 new
Capital on Tap is a financial technology company headquartered in London, United Kingdom, and was founded in 2012. The company provides business credit cards and spend management platforms specifically designed for small and medium-sized enterprises, offering features such as uncapped cashback, high-yield savings accounts, and integration with accounting software. It operates primarily in the United Kingdom and the United States, serving over 350,000 business customers and processing more than 40 billion pounds in transactions to date.
No named decision-maker yet.
Careers mailbox is known
Open 170 daysVerified live · 15 min ago 6 months ago Long shot · 11%

Senior Software Engineer

≈ $81k – $157k per year (Estimated) · Senior · 5+ years exp · Hybrid (London, United Kingdom) · Senior
C#
TypeScript
SQL
Dart
JavaScript
C#
.NET
Frontend
React.js
Mobile
Flutter
DevOps
GCP
Azure
+2
Apply

A&O Shearman

aoshearman.com
aoshearman.com · HQ: London, United Kingdom · Legal Services · 501-1000 employees · Est. 2024 · Trust B · Hiring 188, 20 new
HQ: London, United Kingdom · Legal Services · 501-1000 employees · Est. 2024 · Trust B · Hiring 188, 20 new
A&O Shearman is an international law firm formed in 2024 by the merger of London-based Allen & Overy and New York-based Shearman & Sterling, advising corporates, financial institutions and governments on finance, capital markets, M&A, disputes, regulatory and tax matters. It operates nearly 50 offices in about 29 countries, with major hubs in London, New York, Paris, Frankfurt, Luxembourg, Dubai, Singapore and Hong Kong and a large support centre in Belfast. It hires associates and lawyers across practice areas, trainees and interns, paralegals, and business services staff in IT, cyber defence, data engineering, finance, HR and marketing.
No named decision-maker yet.
No careers mailbox known
Likely inactiveVerified live · 1 hour ago 6 months ago Long shot · 8%

Senior Developer

≈ $82k – $159k per year (Estimated) · Senior · In office (Belfast, United Kingdom) · Full-Time · Senior
C#
C#
.NET
DevOps
CI/CD
Management
Agile
Apply

Ankar

ankar.ai
ankar.ai · HQ: London, United Kingdom · Legal Software · Legal AI · 51-200 employees · Startup · Trust C · Hiring 11
HQ: London, United Kingdom · Legal Software · Legal AI · 51-200 employees · Startup · Trust C · Hiring 11
For the patent teams protecting what's next. Trusted by Fortune 500 and AmLaw100 firms for the high-stakes work of protecting innovation.
No named decision-maker yet.
Careers mailbox is known
Likely inactiveTop 25% pay Visa sponsorship 6 months ago Long shot · 4%

Product Engineer

$129k – $216k per year · Hybrid (London, United Kingdom) · Full-Time
Hugging Face
OpenAI
DevOps
Datadog
Apply
Likely inactiveTop 25% pay Visa sponsorship 6 months ago Long shot · 6%

Senior Product Engineer

$216k – $404k per year · Senior · Hybrid (London, United Kingdom) · Full-Time · Senior
Hugging Face
OpenAI
DevOps
Datadog
Apply
Likely inactiveVerified live · 4 hours ago Visa sponsorship 12 months ago Long shot · 3%

Patent Product Engineer

≈ $55k – $127k per year (Estimated) · Junior · 2+ years exp · In office (London, United Kingdom, New York, United States) · Bachelor's Degree · Full-Time · Junior
Hugging Face
OpenAI
DevOps
Datadog
Apply

Valarian

valarian.com
valarian.com · HQ: London, United Kingdom · AI Governance & Compliance · 51-200 employees · Est. 2020 · Startup · Trust A · Hiring 13, 1 new
HQ: London, United Kingdom · AI Governance & Compliance · 51-200 employees · Est. 2020 · Startup · Trust A · Hiring 13, 1 new
Valarian gives organisations the control architecture required for high-consequence operations and increasingly capable systems. Built in Britain by operators who have seen what breaks.
No named decision-maker yet.
Careers mailbox is known
Open 171 daysVerified live · 5 hours ago 6 months ago Long shot · 16%

Senior Software Engineer

≈ $93k – $178k per year (Estimated) · Senior · Hybrid (London, United Kingdom) · Full-Time · Senior
Go
DevOps
GitOps
Docker
Kubernetes
CI/CD
Service Mesh
Sealed Secrets
SOPS
External Secrets
Cybersecurity
Zero Trust
Least Privilege
+3
Apply

Man Group

man.com
man.com · HQ: London, United Kingdom · Asset Management & Funds · Hedge Funds & Alternative Investments · 501-1000 employees · Est. 1783 · Trust B · Hiring 65, 5 new
HQ: London, United Kingdom · Asset Management & Funds · Hedge Funds & Alternative Investments · 501-1000 employees · Est. 1783 · Trust B · Hiring 65, 5 new
Man Group is a global alternative investment management firm headquartered in London that runs systematic, discretionary and multi-manager strategies for pension funds, sovereign wealth funds and other institutional clients. The firm traces its origins to a sugar brokerage founded in 1783, is listed on the London Stock Exchange and operates investment engines including Man AHL, Man Numeric and Man GLG, with offices in New York, Boston, Hong Kong, Tokyo and several European cities. Hiring spans quantitative researchers, software and data engineers, portfolio and risk specialists, institutional sales staff and corporate functions.
No named decision-maker yet.
No careers mailbox known
Open 174 daysVerified live · 1 hour ago Visa sponsor 6 months ago Long shot · 10%

Senior Python Engineer - Real- Time Data

≈ $95k – $184k per year (Estimated) · Senior · 5+ years exp · In office (London, United Kingdom) · Senior
Java
Python
Databases
PostgreSQL
Apache Kafka
AI/ML
AI Agents
DevOps
Git
Linux
Apply

Circuit Mind

circuitmind.io
circuitmind.io · HQ: London, United Kingdom · Machine Learning · Manufacturing & Industrial Software · 51-200 employees · Est. 2018 · Startup · Hiring 2
HQ: London, United Kingdom · Machine Learning · Manufacturing & Industrial Software · 51-200 employees · Est. 2018 · Startup · Hiring 2
Transform electronics design with AI-powered automation. Generate schematics & BOMs in 60 seconds. Trusted by leading engineering teams to accelerate product development.
Akintomide Adesanmi · Executive Officer, Director · decision-maker
Simon Murdoch · Director
Basilio Gentile · Director
Careers mailbox is known
Open 180 daysVerified live · 1 hour ago Visa sponsor 6 months ago Long shot · 10%

Lead Software Engineer (Python) - London

≈ $99k – $200k per year (Estimated) · Lead · 5+ years exp · In office (London, United Kingdom) · Full-Time · Staff
Python
TypeScript
Python
Django
Mypy
Databases
Redis
PostgreSQL
Frontend
GraphQL
DevOps
Docker
Apply

Fonoa

fonoa.com
fonoa.com · HQ: Dublin, Ireland · Accounting & Tax Software · 51-200 employees · Est. 2019 · Startup · Trust B · Hiring 18
HQ: Dublin, Ireland · Accounting & Tax Software · 51-200 employees · Est. 2019 · Startup · Trust B · Hiring 18
Fonoa is a tax technology company founded in 2019 and headquartered in Dublin. Its platform automates indirect tax determination and reporting for digital businesses. The service is used by global marketplaces and platforms.
No named decision-maker yet.
Careers mailbox is known
Verified live · 1 hour ago 6 months ago Long shot · 18%

Senior/Staff Software Engineer, AI

≈ $171k – $304k per year (Estimated) · Staff+ · 5+ years exp · Hybrid (London, United Kingdom, Zagreb, Croatia) · Full-Time · Staff
Go
Node JS
TypeScript
JavaScript
Databases
PostgreSQL
AI/ML
Prompt Engineering
RAG
AI Agents
Frontend
React.js
DevOps
Terraform
GCP
Kubernetes
+4
Apply
Likely inactiveVerified live · 1 hour ago 3 years ago Long shot · 8%

Senior/Staff Software Engineer

≈ $177k – $314k per year (Estimated) · Staff+ · Hybrid (London, United Kingdom, Zagreb, Croatia) · Full-Time · Staff
Go
Node JS
TypeScript
JavaScript
Databases
PostgreSQL
AI/ML
AI Agents
Frontend
React.js
DevOps
Terraform
GCP
Kubernetes
+2
Apply

Waggel

waggel.co.uk
waggel.co.uk · HQ: London, United Kingdom · Pet Food, Supplies & Care · Property & Casualty Insurance · 51-200 employees · Est. 2017 · Likely startup · Hiring 2
HQ: London, United Kingdom · Pet Food, Supplies & Care · Property & Casualty Insurance · 51-200 employees · Est. 2017 · Likely startup · Hiring 2
Choose Waggel's comprehensive lifetime pet insurance with dental care, 24/7 video vet calls, flexible coverage and a dedicated claims team. Get a quote today!
No named decision-maker yet.
Careers mailbox is known
Open 181 daysVerified live · 2 hours ago 6 months ago Long shot · 7%

Full Stack Software Engineer

$81k – $94k per year · London · Remote (United Kingdom) · Full-Time
CI/CD
Apply

i3Works

i3works.co.uk
i3works.co.uk · HQ: Glasgow, United Kingdom · Project & Work Management Software · Management Consulting · Est. 2014 · Hiring 3
HQ: Glasgow, United Kingdom · Project & Work Management Software · Management Consulting · Est. 2014 · Hiring 3
I3Works is a consultancy business delivering project management (P3M), digital, and technology-centric management and support solutions.
No named decision-maker yet.
Careers mailbox is known
Open 182 daysVerified live · 27 min ago 6 months ago Long shot · 8%

SDLC Consultant / Lead (DevOps & Full Stack Capability)

≈ $85k – $171k per year (Estimated) · Lead · Hybrid (Bristol, United Kingdom) · Full-Time · Staff
Azure
CI/CD
AWS
Platform Engineering
Management
Agile
Apply

Decagon

decagon.ai
decagon.ai · HQ: San Francisco, United States · Customer Support & Help Desk Software · AI Agents · Conversational AI · 501-1000 employees · Est. 2023 · Startup · Trust B · Hiring 128, 2 new
HQ: San Francisco, United States · Customer Support & Help Desk Software · AI Agents · Conversational AI · 501-1000 employees · Est. 2023 · Startup · Trust B · Hiring 128, 2 new
Decagon is a San Francisco company founded in 2023 that builds artificial intelligence support agents for consumer and business brands. Its agents resolve conversations end to end across chat, email and voice by taking actions in company systems, and admins configure behaviour through natural language operating procedures. It has grown quickly with customers in fintech, e-commerce and software.
Jesse Zhang · Executive Officer, Director · decision-maker
Ashwin Sreenivas · Director
Ivan Zhou · Director
Aaref Hilaly · Director
Careers mailbox is known
Likely inactiveTop 25% pay 6 months ago Long shot · 8%

Software Engineer, Agents

$168k – $242k per year · Middle · 3+ years exp · In office (London, United Kingdom) · Full-Time · Middle
TypeScript
Python
AI/ML
AI Agents
Multimodal AI
Apply

SiXworks

sixworks.net
sixworks.net · HQ: Farnborough, United Kingdom · Information Security · IT Consulting & Digital Transformation · 201-500 employees · Est. 2017 · Startup · Trust A · Hiring 26, 1 new
HQ: Farnborough, United Kingdom · Information Security · IT Consulting & Digital Transformation · 201-500 employees · Est. 2017 · Startup · Trust A · Hiring 26, 1 new
SiXworks provides digital solutions for high-security environments, building secure digital systems that support defence and national security missions. It hires senior project managers, platform engineers, data engineers and data reporting delivery managers at its sites in Farnborough and Cheltenham. The company is headquartered in Farnborough, England, United Kingdom.
No named decision-maker yet.
Careers mailbox is known
Verified live · 2 hours ago 6 months ago Long shot · 17%

Software Engineer

≈ $67k – $163k per year (Estimated) · In office (Cheltenham, United Kingdom) · Bachelor's Degree · Full-Time
Rust
Kotlin
Go
Mobile
Jetpack Compose
MVVM
DevOps
Azure
CI/CD
AWS
Apply

Share

share.inc
share.inc · HQ: Vancouver, United States · Telecom Infrastructure · 51-200 employees · Est. 1979 · Hiring 2
HQ: Vancouver, United States · Telecom Infrastructure · 51-200 employees · Est. 1979 · Hiring 2
From subsea cables to last-mile networks, Share coordinates fragmented infrastructure into a single ecosystem.
No named decision-maker yet.
No careers mailbox known
Verified live · 2 hours ago Visa sponsor 6 months ago Fading · 26%

Founding Engineer

≈ $125k – $205k per year (Estimated) · Equity · Staff+ · 10+ years exp · London · Johannesburg · Nairobi · Cape Town · Remote (Germany, France, United Kingdom, Kenya, Netherlands) · Full-Time · Staff
Node JS
TypeScript
JavaScript
Node JS
Nest.JS
Databases
RabbitMQ
Apache Kafka
PostgreSQL
AI/ML
AI Agents
Cursor
Claude
Copilot
+3
Apply

Harmonic

harmonic.fun
harmonic.fun · HQ: Palo Alto, United States · AI for Science · Est. 2023 · Startup · Trust B · Hiring 8
HQ: Palo Alto, United States · AI for Science · Est. 2023 · Startup · Trust B · Hiring 8
Harmonic is a research laboratory building mathematical superintelligence with verifiable reasoning at its core. Its Aristotle system generates proofs in the Lean formal language so that every claim it makes can be checked mechanically rather than trusted, an approach aimed directly at eliminating hallucination in reasoning. The company was co-founded by the Robinhood founder Vlad Tenev and reached gold medal level performance on international mathematical olympiad problems; its long term aim is a system whose mathematical output requires no human verification.
No named decision-maker yet.
No careers mailbox known
Open 188 daysVerified live · 5 hours ago Visa sponsor 6 months ago Long shot · 6%

Software Engineer, Infrastructure

≈ $92k – $179k per year (Estimated) · Senior · 5+ years exp · In office (London, United Kingdom) · Bachelor's Degree · Full-Time · Senior
C++
Python
AI/ML
Reinforcement Learning
DevOps
GCP
Kubernetes
Azure
AWS
Apply

Tecknuovo

tecknuovo.com
tecknuovo.com · HQ: London, United Kingdom · IT Consulting & Digital Transformation · Est. 2015 · Trust B · Hiring 6, 1 new
HQ: London, United Kingdom · IT Consulting & Digital Transformation · Est. 2015 · Trust B · Hiring 6, 1 new
Tecknuovo builds technology alongside your teams, transferring skills and capability so you own your systems, decisions, and future.
No named decision-maker yet.
Careers mailbox is known
Open 188 daysVerified live · 6 hours ago 6 months ago Long shot · 4%

Full Stack Software Engineer

≈ $72k – $175k per year (Estimated) · In office (London, United Kingdom) · Full-Time
Node JS
TypeScript
Python
JavaScript
Frontend
React.js
DevOps
Azure
CI/CD
AWS
Management
Agile
+1
Apply
Machines can read this selection · checked 06:29 UTC
Backend Developer Jobs in United Kingdom
Frequently asked questions
How many Backend Developer jobs in United Kingdom are available on Alion?
There are currently 1489 active listings from 580 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in United Kingdom pay?
The average salary is around $187,986 per year based on the current listings.
Are remote options available for Backend Developer jobs in United Kingdom?
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 United Kingdom?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.