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
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Fintech
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Aerospace
Biotech
Energy
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9,088 remote jobs are open to candidates in United Kingdom.Show remote jobs

Moonpig

moonpig.com
moonpig.com · HQ: London, United Kingdom · E-commerce Platforms · Gifts, Party Supplies & Souvenirs · Est. 2000 · Hiring 14, 5 new
HQ: London, United Kingdom · E-commerce Platforms · Gifts, Party Supplies & Souvenirs · Est. 2000 · Hiring 14, 5 new
Moonpig is a London company founded in 2000 that sells personalised greeting cards and gifts online. Its technology handles mass customisation, print production and reminder driven repeat purchasing at very high volumes. The company is listed in London and also owns the Dutch business Greetz.
No named decision-maker yet.
No careers mailbox known
Verified live · 5 hours ago Visa sponsor 13 days ago Hiring now · 86%

Senior Software Engineer (Search)

≈ $86k – $167k per year (Estimated) · Senior · Hybrid (London, Manchester, United Kingdom) · Full-Time · Senior
Node JS
C#
TypeScript
JavaScript
C#
.NET
Databases
ElasticSearch
OpenSearch
Frontend
GraphQL
React.js
DevOps
GitHub
Terraform
CI/CD
AWS
Analytics
A/B Testing
Management
Agile
+7
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Verified live · 5 hours ago Visa sponsor 22 days ago Hiring now · 74%

Software Engineer – Fulfilment

≈ $59k – $144k per year (Estimated) · Hybrid (Manchester, United Kingdom) · Full-Time
C#
TypeScript
JavaScript
C#
.NET
Databases
DynamoDB
Amazon Aurora
PostgreSQL
Frontend
React.js
DevOps
AWS Lambda
Amazon S3
Terraform
Windows
AWS
Management
Agile
+6
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Echobox

echobox.com
echobox.com · HQ: London, United Kingdom · Artificial Intelligence · Data & Analytics · Media & Entertainment · Digital Media · Social Media Marketing · 201-500 employees · Startup · Hiring 5, 2 new
HQ: London, United Kingdom · Artificial Intelligence · Data & Analytics · Media & Entertainment · Digital Media · Social Media Marketing · 201-500 employees · Startup · Hiring 5, 2 new
Unify social publishing, newsletters, realtime analytics, benchmarking, reporting and creative production in one AI-powered platform built for publishers.
No named decision-maker yet.
Careers mailbox is known
Verified live · 6 hours ago Visa sponsor 13 days ago Hiring now · 99%

Senior Software Engineer

≈ $86k – $166k per year (Estimated) · Senior · 3+ years exp · In office (London, United Kingdom) · Bachelor's Degree · Full-Time · Senior
Node JS
Java
SQL
Python
JavaScript
AI/ML
Machine Learning
DevOps
Rest API
Git
GCP
Azure
AWS
+3
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Verified live · 6 hours ago Visa sponsor 13 days ago Hiring now · 99%

Senior Software Developer

≈ $86k – $166k per year (Estimated) · Senior · 3+ years exp · In office (London, United Kingdom) · Bachelor's Degree · Full-Time · Senior
Node JS
Java
SQL
Python
JavaScript
AI/ML
Machine Learning
DevOps
Rest API
Git
GCP
Azure
AWS
+3
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Verified live · 6 hours ago Visa sponsor 13 days ago Hiring now · 89%

Software Engineer

≈ $50k – $117k per year (Estimated) · Junior · 1+ year exp · In office (London, United Kingdom) · Bachelor's Degree · Full-Time · Junior
Node JS
Java
SQL
Python
JavaScript
AI/ML
Machine Learning
DevOps
Rest API
Git
GCP
Azure
AWS
+3
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Zscaler

zscaler.com
zscaler.com · HQ: San Jose, United States · Network Security · Cloud Security · 5000+ employees · Est. 2007 · Trust B · Hiring 310, 44 new
HQ: San Jose, United States · Network Security · Cloud Security · 5000+ employees · Est. 2007 · Trust B · Hiring 310, 44 new
Zscaler is an American cloud security company founded in 2007 that routes an organisation's internet and application traffic through its own global network of data centres for inspection. This replaces the appliances that traditionally sat at an office perimeter and underpins its two main products: a secure web gateway that inspects outbound traffic, and a zero trust access service that connects users to individual internal applications without putting them on the corporate network. Headquartered in San Jose and listed on Nasdaq, it also sells cloud posture management, data protection and a security operations product built on the traffic it already inspects.
Jay Chaudhry · Founder, Chairman and Chief Executive Officer · decision-maker
Jayant Lall · Geschäftsführer · decision-maker
Chris Potts · Geschäftsführer · decision-maker
Yogeswar Chandiramani · Geschäftsführer · decision-maker
No careers mailbox known
Verified live · 4 hours ago Visa sponsor 13 days ago Likely open · 63%

Staff Backend Developer - Threat Intelligence

≈ $114k – $195k per year (Estimated) · Staff+ · 7+ years exp · Hybrid (London, United Kingdom) · Staff
SQL
Python
Python
Django
Databases
Redis
PostgreSQL
ElasticSearch
Meilisearch
Typesense
AI/ML
LLM
DevOps
Rest API
Kubernetes
Cybersecurity
Zscaler
Zero Trust
+5
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Leeds

leeds.ac.uk
leeds.ac.uk · Leeds · Higher Education · 5000+ employees · Est. 1904 · Hiring 1
Leeds · Higher Education · 5000+ employees · Est. 1904 · Hiring 1
The University of Leeds is a large UK higher education institution and part of the Russell Group of leading universities.
No named decision-maker yet.
No careers mailbox known
$61k – $67k per year · Lead · In office (Leeds, United Kingdom) · Full-Time · Staff
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Report

Insulet

insulet.com
insulet.com · HQ: Acton, United States · Diabetes Devices · 1001-5000 employees · Est. 2000 · NASDAQ: PODD · Trust A · Hiring 149, 17 new
HQ: Acton, United States · Diabetes Devices · 1001-5000 employees · Est. 2000 · NASDAQ: PODD · Trust A · Hiring 149, 17 new
Insulet is an American medical device company that develops and manufactures the Omnipod tubeless insulin pump system, a wearable, disposable pod that delivers insulin for up to three days and works with automated insulin delivery software for people with diabetes. Founded in 2000 and listed on Nasdaq, it runs manufacturing in Acton, Massachusetts and in Malaysia and sells across the United States, Europe and other markets. The company is headquartered in Acton, Massachusetts, United States.
No named decision-maker yet.
Careers mailbox is known
Verified live · 2 hours ago Visa sponsor 13 days ago Hiring now · 81%

Senior Web Developer

≈ $92k – $179k per year (Estimated) · Senior · 5+ years exp · Hybrid (London, United Kingdom) · Bachelor's Degree · Full-Time · Senior
PHP
JavaScript
Apex
PHP
Drupal
Apex
MuleSoft
Visualforce
Frontend
Sass
DevOps
Bitbucket
GitHub
CI/CD
Management
Confluence
Jira
Scrum
Agile
+6
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Boeing

boeing.com
boeing.com · HQ: Arlington, United States · Aerospace Manufacturing · Combat Aircraft · Aircraft Manufacturing · 1001-5000 employees · Est. 1916 · Trust A · Hiring 685, 148 new
HQ: Arlington, United States · Aerospace Manufacturing · Combat Aircraft · Aircraft Manufacturing · 1001-5000 employees · Est. 1916 · Trust A · Hiring 685, 148 new
Boeing is a global aerospace manufacturer and defense contractor specializing in commercial jetliners, military aircraft, satellites, and space systems. Headquartered in Arlington, Virginia, United States, the company operates across three main business divisions: Commercial Airplanes; Defense, Space & Security; and Global Services. Through aircraft engineering, defense hardware production, and worldwide fleet support, the enterprise serves commercial airlines, armed forces, and government partners across more than 150 countries.
No named decision-maker yet.
No careers mailbox known
Verified live · 1 hour ago 13 days ago Hiring now · 72%

Software Engineer

≈ $76k – $147k per year (Estimated) · Senior · 5+ years exp · Hybrid (Bristol, United Kingdom) · Relocation · Bachelor's Degree · Full-Time · Shift work · Citizenship or vetting required · Senior
Lua
C++
DevOps
Bitbucket
GitLab
Git
CI/CD
Management
Agile
SpaceTech
DO-178C
Apply
Verified live · 1 hour ago 13 days ago Hiring now · 72%

Software Systems Engineer

≈ $77k – $149k per year (Estimated) · Senior · 5+ years exp · Hybrid (Lossiemouth, United Kingdom) · Relocation · Full-Time · Secret · Shift work · Senior
C#
C++
C#
.NET
DevOps
Git
CI/CD
Management
Agile
Apply
Verified live · 1 hour ago 21 days ago Fading · 42%

Associate Simulation Software Engineer

≈ $44k – $101k per year (Estimated) · Junior · 2+ years exp · In office (Crawley, United Kingdom) · Relocation · Bachelor's Degree · Full-Time · Shift work · Junior
C++
DevOps
Linux
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DXC Technology

dxc.com
dxc.com · HQ: Ashburn, United States · IT Consulting & Digital Transformation · Managed IT Services (MSP) · Systems Integrators · 5000+ employees · Est. 2017 · IT services · Trust B · Hiring 953, 82 new
HQ: Ashburn, United States · IT Consulting & Digital Transformation · Managed IT Services (MSP) · Systems Integrators · 5000+ employees · Est. 2017 · IT services · Trust B · Hiring 953, 82 new
DXC Technology is an American information technology services company formed in 2017 by merging Computer Sciences Corporation with the enterprise services division of Hewlett Packard Enterprise. It runs and modernises the IT estates of large organisations, covering cloud and infrastructure operations, application management, security services, and industry software for insurance, banking and healthcare clients across some seventy countries. Headquartered in Ashburn, Virginia and listed on the New York Stock Exchange, the company has spent recent years shrinking legacy outsourcing revenue while trying to grow consulting and engineering work.
Rob Del Bene · Chief Financial Officer · decision-maker
Raul Fernandez · President & Chief Executive Officer · decision-maker
Mike Lawrie · Founding Chief Executive Officer · founder
No careers mailbox known
Verified live · 12 hours ago 13 days ago Likely open · 54%

Junior Software Developer

≈ $46k – $107k per year (Estimated) · Junior · 5+ years exp · In office (Farnborough, United Kingdom) · Bachelor's Degree · Full-Time · Junior
C++
Python
DevOps
Linux
CI/CD
Management
Scrum
Agile
Apply
Verified live · 12 hours ago 22 days ago Fading · 41%

Full Stack Scrum Engineer

≈ $62k – $151k per year (Estimated) · In office (Farnborough, United Kingdom) · Full-Time
Scrum
Apply
Verified live · 12 hours ago 29 days ago Likely open · 45%

Infrastructure Platform Architect

≈ $126k – $223k per year (Estimated) · Staff+ · In office (Farnborough, United Kingdom) · Full-Time · Architect
Hyper-V
VMWare
Kubernetes
Azure
AWS
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SLB

slb.com
slb.com · HQ: Houston, United States · Science & Engineering · Professional Services · Natural Resources · Artificial Intelligence · Petroleum & Mining Engineering · Oil & Gas · 5000+ employees · Est. 1926 · Trust B · Hiring 554, 54 new
HQ: Houston, United States · Science & Engineering · Professional Services · Natural Resources · Artificial Intelligence · Petroleum & Mining Engineering · Oil & Gas · 5000+ employees · Est. 1926 · Trust B · Hiring 554, 54 new
Headquartered in Houston, Texas, SLB (formerly known as Schlumberger) is a global energy technology company specializing in innovative solutions for the oil and gas industry. The enterprise provides a comprehensive range of services and digital technologies, spanning well construction, reservoir performance, and production optimization. Operating in over 120 countries, SLB also drives clean energy initiatives, supporting decarbonization, carbon capture, and new energy systems worldwide.
No named decision-maker yet.
No careers mailbox known
Verified live · 4 hours ago 13 days ago Likely open · 57%

Back-End Software Engineer Intern (12 months)

Intern · In office (Crawley, United Kingdom) · Bachelor's Degree · Internship · Intern
C++
Java
Python
AI/ML
ChatGPT
Copilot
DevOps
Jenkins
Windows
Git
GCP
Linux
Azure
CI/CD
Management
Agile
+5
Apply
Verified live · 4 hours ago 13 days ago Likely open · 57%

Software Engineer Intern (6 months)

Intern · In office (Abingdon, United Kingdom) · Bachelor's Degree · Internship · Intern
Machine Learning
Apply
Verified live · 4 hours ago 27 days ago Likely open · 47%

Software Engineer Intern (12 months)

Intern · In office (Cambridge, United Kingdom) · Bachelor's Degree · Internship · Intern
C++
Python
AI/ML
Reinforcement Learning
Machine Learning
Apply

Infleqtion

infleqtion.com
infleqtion.com · HQ: Louisville, Fairport, United States · Science & Engineering · Hardware · Quantum Science & Computing · Sensors & Transducers · Quantum Computing Hardware · 1001-5000 employees · Est. 2007 · NYSE: INFQ · Trust A · Hiring 52, 6 new
HQ: Louisville, Fairport, United States · Science & Engineering · Hardware · Quantum Science & Computing · Sensors & Transducers · Quantum Computing Hardware · 1001-5000 employees · Est. 2007 · NYSE: INFQ · Trust A · Hiring 52, 6 new
Infleqtion is an American quantum technology company that builds products based on cold atom physics, including neutral-atom quantum computers, optical atomic clocks, quantum radio frequency receivers and inertial and gravity sensors for navigation where satellite signals are unavailable. Founded in 2007 as ColdQuanta and renamed Infleqtion in 2022, it supplies research institutions, defense agencies and commercial customers and runs operations in the United States and the United Kingdom. The company is headquartered in Louisville, Colorado, United States.
Matthew Kinsella · Executive Officer, Director · decision-maker
Ilan Hart · Executive Officer · decision-maker
Jason Hall · Executive Officer · decision-maker
Paul Lipman · Executive Officer · decision-maker
Careers mailbox is known
Verified live · 4 hours ago 13 days ago Hiring now · 90%

Quantum Software Engineer - QEC

≈ $75k – $183k per year (Estimated) · Equity · In office (Kidlington, United Kingdom) · PhD · Full-Time
Machine Learning
Apply
Verified live · 4 hours ago 22 days ago Hiring now · 78%

Quantum Software Engineer - Algorithms & Applications

≈ $77k – $188k per year (Estimated) · Equity · In office (Kidlington, United Kingdom) · PhD · Full-Time
Python
Python
SQLAlchemy
FastAPI
PyQt
Databases
PostgreSQL
DevOps
GitHub
GCP
CI/CD
AWS
Quantum
Qiskit
Cirq
+3
Apply

Ocean Infinity

oceaninfinity.com
oceaninfinity.com · HQ: Austin, United States · Geological Survey · Underwater & Marine Robotics · Est. 2017 · Trust A · Hiring 29, 5 new
HQ: Austin, United States · Geological Survey · Underwater & Marine Robotics · Est. 2017 · Trust A · Hiring 29, 5 new
Ocean Infinity is a marine robotics and ocean technology company specializing in subsea data acquisition, seabed mapping, and deep-water survey operations. Headquartered in Austin, Texas, and Southampton, United Kingdom, the firm operates large fleets of autonomous underwater vehicles and uncrewed surface vessels equipped with advanced sensor technology. By deploying remote-control and robotic solutions, it provides energy companies, scientific research institutions, and defense organizations with safer and lower-emission ocean intelligence.
No named decision-maker yet.
Careers mailbox is known
Verified live · 3 hours ago 13 days ago Hiring now · 73%

Software Engineers

≈ $86k – $210k per year (Estimated) · In office (Southampton, United Kingdom) · Full-Time · Citizenship or vetting required
C++
DevOps
RTOS
Git
Linux
Robotics
ROS
ROS2
Sensor Fusion
Apply
Verified live · 3 hours ago 23 days ago Likely open · 45%

Senior Software Engineers

≈ $104k – $201k per year (Estimated) · Senior · In office (Southampton, United Kingdom) · Full-Time · Citizenship or vetting required · Senior
C++
DevOps
RTOS
Git
Linux
Robotics
ROS
ROS2
Sensor Fusion
Apply
Verified live · 3 hours ago 2 months ago Long shot · 19%

Senior Software Engineer (Full Stack)

$148k per year · Senior · In office (London, United Kingdom) · Full-Time · Senior · English: C1
C#
TypeScript
JavaScript
C#
.NET
Databases
PostgreSQL
RabbitMQ
Apache Kafka
AI/ML
Cursor
Claude
Frontend
Next.js
tRPC
React.js
Mobile
Clean Architecture
DevOps
Git
WebSockets
Docker
GCP
Kubernetes
Azure
CI/CD
AWS
Management
Agile
+14
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Moneyhub

moneyhub.com
moneyhub.com · HQ: Bristol, United Kingdom · Investing Apps & Robo-Advisors · Financial Software & Embedded Finance · Est. 2014 · Likely startup · Hiring 3
HQ: Bristol, United Kingdom · Investing Apps & Robo-Advisors · Financial Software & Embedded Finance · Est. 2014 · Likely startup · Hiring 3
Moneyhub is a Bristol company founded in 2014 that provides open finance data and payment infrastructure. Its platform aggregates accounts, pensions and investments so banks, insurers and advisers can give customers a complete financial picture. The company sells its technology to institutions rather than competing for consumers directly.
No named decision-maker yet.
No careers mailbox known
Verified live · 2 hours ago 14 days ago Hiring now · 77%

Principal Engineer

≈ $97k – $189k per year (Estimated) · Lead · London · Bristol · Remote (United Kingdom, Slovenia) · Full-Time · Principal
Rust
Python
TypeScript
Databases
Apache Kafka
PostgreSQL
AI/ML
AI Agents
Machine Learning
DevOps
Kubernetes
AWS
Cybersecurity
ISO 27001
+2
Apply

Galaxy Digital

galaxy.com
galaxy.com · HQ: New York, United States · Data Centers & Colocation · Mining & Staking · Investment Banking & M&A Advisory · Hedge Funds & Alternative Investments · Asset Management & Funds · 501-1000 employees · Est. 2018 · NASDAQ: GLXY · Trust A · Hiring 43, 8 new
HQ: New York, United States · Data Centers & Colocation · Mining & Staking · Investment Banking & M&A Advisory · Hedge Funds & Alternative Investments · Asset Management & Funds · 501-1000 employees · Est. 2018 · NASDAQ: GLXY · Trust A · Hiring 43, 8 new
Galaxy Digital is a financial services and investment management firm specializing in digital assets, cryptocurrency, and blockchain technology. Founded by Michael Novogratz, the company serves as a bridge between traditional finance and the crypto ecosystem through institutional trading, asset management, investment banking, and mining operations. Additionally, it has expanded into digital infrastructure, providing data center capabilities to support high-performance computing, artificial intelligence, and decentralized networks.
No named decision-maker yet.
No careers mailbox known
Verified live · 5 hours ago Visa sponsor 14 days ago Hiring now · 90%

VP, Java Electronic Trading Engineer

≈ $96k – $243k per year (Estimated) · Head+ · 10+ years exp · In office (London, United Kingdom) · Architect
Java
AI/ML
Tokenization
DevOps
Linux
HPC
Docker
Kubernetes
AWS
Apply

CommonAI

commonai.org
commonai.org · HQ: London, United Kingdom · High-Performance Computing · AI Compute & Inference · 51-200 employees · Est. 2024 · Startup · Hiring 15, 1 new
HQ: London, United Kingdom · High-Performance Computing · AI Compute & Inference · 51-200 employees · Est. 2024 · Startup · Hiring 15, 1 new
CommonAI is a British community interest company building shared AI infrastructure through collaborative engineering with commercial, government and research partners. Founded in 2024 and backed by UK Government and private funding, it works on high-assurance AI, AI systems simulation, cluster automation and infrastructure performance, with its engineering team in Cambridge. The company is headquartered in London, United Kingdom.
No named decision-maker yet.
Careers mailbox is known
Verified live · 3 hours ago 14 days ago Hiring now · 90%

Systems Software Engineer, Cluster Control and Automation

≈ $70k – $171k per year (Estimated) · In office (Cambridge, United Kingdom) · Bachelor's Degree · Full-Time
NixOS
OpenTofu
SLURM
HPC
Terraform
Linux
Kubernetes
Apply
Verified live · 3 hours ago 14 days ago Hiring now · 90%

Software Engineer, AI Systems Simulation

≈ $72k – $175k per year (Estimated) · In office (Cambridge, United Kingdom) · Bachelor's Degree · Full-Time
Rust
C++
Python
AI/ML
vLLM
SGLang
LLM
DevOps
HPC
Apply
Verified live · 3 hours ago 15 days ago Hiring now · 90%

Software Engineer (Summer 2027 Internship)

Intern · In office (Cambridge, United Kingdom) · Bachelor's Degree · Internship · Intern
Rust
C++
Python
C++
TensorFlow C++
Databases
Neo4j
AI/ML
TensorFlow
TPU
PyTorch
DevOps
GitHub
+1
Apply

Legl

legl.com
legl.com · HQ: London, United Kingdom · RegTech, AML & Compliance · Legal Software · 11-50 employees · Est. 2019 · Startup · Hiring 3, 1 new
HQ: London, United Kingdom · RegTech, AML & Compliance · Legal Software · 11-50 employees · Est. 2019 · Startup · Hiring 3, 1 new
Legl is a London company founded in 2019 that digitises client onboarding and payments for law firms. Its platform handles identity checks, anti money laundering screening and fee collection in one workflow. The company serves British law firms modernising processes that traditionally ran on paper and cheques.
No named decision-maker yet.
Careers mailbox is known
Verified live · 10 hours ago 14 days ago Hiring now · 86%

Senior Product Engineer

≈ $86k – $166k per year (Estimated) · Senior · In office (London, United Kingdom) · Full-Time · Senior
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Spotify

spotify.com
spotify.com · HQ: Stockholm, Sweden · Advertising · Podcasting · Music Industry · Streaming & OTT Platforms · 5000+ employees · Est. 2006 · Trust A · Hiring 86, 1 new
HQ: Stockholm, Sweden · Advertising · Podcasting · Music Industry · Streaming & OTT Platforms · 5000+ employees · Est. 2006 · Trust A · Hiring 86, 1 new
Spotify is a Swedish audio streaming company founded in Stockholm in 2006 that turned licensed on-demand music into the dominant way people listen. Its catalogue spans roughly a hundred million tracks plus podcasts and audiobooks, delivered through an advertising-supported free tier and a paid Premium subscription to hundreds of millions of monthly users across more than a hundred and eighty markets. The platform pairs personalised recommendation systems such as Discover Weekly with a creator side that gives artists, podcasters and publishers distribution, analytics and monetisation tools.
Daniel Ek · Co-Founder & Executive Chairman · decision-maker
Alex Norstrom · Co-Chief Executive Officer · decision-maker
Gustav Soderstrom · Co-Chief Executive Officer · decision-maker
Martin Lorentzon · Co-Founder · founder
No careers mailbox known
Verified live · 2 hours ago Visa sponsor 14 days ago Likely open · 62%

Backend Engineer - Subscriptions

Hybrid (London, United Kingdom, Stockholm, Sweden) · Full-Time
Java
Python
Databases
PostgreSQL
DevOps
GCP
Apply
Verified live · 2 hours ago Visa sponsor 15 days ago Likely open · 63%

Senior Backend Engineer - Content Platform

≈ $98k – $189k per year (Estimated) · Senior · Hybrid (London, United Kingdom, Stockholm, Sweden) · Full-Time · Senior
Scala
Go
Java
DevOps
GCP
Apply
Verified live · 2 hours ago 1 month ago Likely open · 49%

Backend Engineer - Data Platform

≈ $54k – $145k per year (Estimated) · Hybrid (Stockholm, Sweden, London, United Kingdom) · Full-Time
Scala
Java
Databases
Apache Iceberg
Google BigQuery
Trino
Snowflake
Databricks
AI/ML
Flink
Model Context Protocol
Spark
DevOps
kubectl
IAM
GCP
Kubernetes
+6
Apply

Trainline

thetrainline.com
thetrainline.com · HQ: London, United Kingdom · Ticketing · Travel Technology · 501-1000 employees · Est. 1997 · Hiring 26, 1 new
HQ: London, United Kingdom · Ticketing · Travel Technology · 501-1000 employees · Est. 1997 · Hiring 26, 1 new
Trainline is an international digital rail and coach technology platform headquartered in London, United Kingdom, and founded in 1997. The company provides a website and mobile application that allows users to search, compare, and book train and bus tickets across multiple operators. It operates in dozens of countries across Europe and Asia, partnering with over 270 rail and coach carriers to offer travel solutions to millions of active customers.
No named decision-maker yet.
Careers mailbox is known
Verified live · 23 min ago 14 days ago Hiring now · 90%

Senior Backend Engineer - .Net

$114k – $128k per year · Senior · In office (London, United Kingdom) · Full-Time · Senior
C#
C#
IdentityServer
Databases
DynamoDB
PostgreSQL
DevOps
New Relic
Terraform
GCP
Azure
CI/CD
AWS
GitHub Actions
Docker
+4
Apply

ALTEN

alten.com
alten.com · HQ: Boulogne-Billancourt, France · IT Consulting & Digital Transformation · Engineering Services · 5000+ employees · Est. 1988 · Staffing · EOR · Trust B · Hiring 822, 154 new
HQ: Boulogne-Billancourt, France · IT Consulting & Digital Transformation · Engineering Services · 5000+ employees · Est. 1988 · Staffing · EOR · Trust B · Hiring 822, 154 new
ALTEN is a French engineering and technology consultancy founded in 1988 that supplies project engineers to companies developing complex products and systems. Its consultants work inside client organisations across automotive, aerospace, defence, rail, energy, telecommunications, life sciences and finance, covering embedded software, mechanical and electrical design, simulation, testing, certification and information systems. Listed on Euronext Paris and headquartered in Boulogne-Billancourt, the group employs tens of thousands of engineers across more than thirty countries and has grown through a long sequence of acquisitions of specialist engineering firms.
Simon Azoulay · Founder, Chairman and Chief Executive Officer · decision-maker
Gerald Attia · Deputy Chief Executive Officer · decision-maker
No careers mailbox known
Verified live · 4 hours ago Visa sponsor 14 days ago Likely open · 56%

Senior Software Engineer (DevSecOps & Autonomy)

$67k – $94k per year · Senior · Hybrid (Bristol, United Kingdom) · Bachelor's Degree · Full-Time · Senior
Ruby
Perl
C++
Java
Python
Databases
MySQL
DevOps
Windows
CI/CD
Management
ITIL
Agile
+2
Apply
Verified live · 4 hours ago Visa sponsor 1 month ago Fading · 31%

Python Software Architect (Data Capture and Analysis)

≈ $120k – $213k per year (Estimated) · Staff+ · In office (Guildford, United Kingdom) · Bachelor's Degree · Full-Time · Senior
Python
Management
Agile
Apply

White Swan Data

whiteswandata.com
whiteswandata.com · HQ: London, United Kingdom · iGaming & Gambling · Sports Betting · 51-200 employees · Hiring 13
HQ: London, United Kingdom · iGaming & Gambling · Sports Betting · 51-200 employees · Hiring 13
White Swan Data is a British company that builds, backs and scales technology and data infrastructure for the gambling industry. It runs sports trading operations and hires football and sports traders, full stack engineers and business development managers. The company is headquartered in London, United Kingdom, with an office in New York.
No named decision-maker yet.
Careers mailbox is known
Verified live · 5 hours ago 14 days ago Hiring now · 76%

Full Stack Engineer

≈ $73k – $177k per year (Estimated) · In office (London, United Kingdom) · Full-Time
Node JS
TypeScript
JavaScript
Python
Databases
Google BigQuery
PostgreSQL
Frontend
Sass
React.js
Mobile
React Native
DevOps
Google Cloud Run
GCP
Docker
CI/CD
+5
Apply
Verified live · 5 hours ago 21 days ago Hiring now · 70%

Software Engineer

≈ $72k – $174k per year (Estimated) · In office (London, United Kingdom) · Full-Time
Java
Python
Databases
PostgreSQL
AI/ML
Prompt Engineering
LLM
DevOps
Rest API
Git
Docker
GCP
CI/CD
+2
Apply
Verified live · 5 hours ago 25 days ago Hiring now · 75%

Senior Software Developer

≈ $87k – $168k per year (Estimated) · Senior · In office (London, United Kingdom) · Full-Time · Senior
Java
Python
DevOps
Rest API
Docker
GCP
Analytics
ETL/ELT
Apply

Aurora Energy Research

auroraer.com
auroraer.com · HQ: Oxford, United Kingdom · Management Consulting · Market Research · 201-500 employees · Est. 2013 · Hiring 79, 10 new
HQ: Oxford, United Kingdom · Management Consulting · Market Research · 201-500 employees · Est. 2013 · Hiring 79, 10 new
Aurora Energy Research is an energy market analytics company headquartered in Oxford, England, that forecasts power, hydrogen and storage markets for governments, investors, developers and utilities. Founded in 2013 by Oxford academics, it sells market outlooks and software through its EOS platform, including the Origin power market model, the Chronos storage valuation tool and the Flexplorer battery benchmark, and has offices across Europe, the Americas, Asia and Australia. It hires software engineers and graduates, technical product managers, energy analysts, client solutions staff and corporate roles.
No named decision-maker yet.
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Senior/Principal Software Engineer (AI)

≈ $89k – $179k per year (Estimated) · Lead · 10+ years exp · Hybrid (Oxford, United Kingdom) · Full-Time · Principal
Python
Databases
Amazon Aurora
AI/ML
AI Agents
LangGraph
LangChain
Model Context Protocol
RAG
LLM
DevOps
AWS
+1
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Software Engineer – Data Platforms

≈ $56k – $128k per year (Estimated) · Middle · 3+ years exp · Hybrid (Oxford, United Kingdom) · Full-Time · Middle
Python
Databases
Amazon Aurora
DevOps
Terraform
AWS
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Modelling Software Engineer - Chronos

≈ $48k – $110k per year (Estimated) · Junior · 2+ years exp · Hybrid (Oxford, United Kingdom) · Full-Time · Junior
Python
AI/ML
AI Agents
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BT Group

bt.com
bt.com · HQ: London, United Kingdom · Telecommunications · Broadband · 5000+ employees · Est. 2001 · Trust A · Hiring 63, 22 new
HQ: London, United Kingdom · Telecommunications · Broadband · 5000+ employees · Est. 2001 · Trust A · Hiring 63, 22 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
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Software Engineer

≈ $59k – $144k per year (Estimated) · In office (Belfast, United Kingdom)
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Software Engineering Specialist

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

≈ $65k – $157k per year (Estimated) · In office (Cheltenham, United Kingdom)
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Machines can read this selection · checked 05:01 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.
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The average salary is around $187,986 per year based on the current listings.
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Yes, many of these roles offer remote or hybrid work, and you can filter listings by remote, relocation and visa sponsorship.
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