Backend Developer jobs in United Kingdom hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $170,197/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
Applied AI
LLM & agents
AI integration
Research
MLOps
AI hardware
Vision & speech
AI product
AI Safety
LLM
RAG
PyTorch
Prompting
TensorFlow
LangChain
Fine-tuning
NLP
More
Backend
ERP & CRM
Solutions
QA
Frontend
Mobile
Full Stack
Web3
Gamedev
Python
Java
JavaScript
TypeScript
C++
C#
Go
Kotlin
PHP
Rust
More
Data Science
Data Engineering
Business analysts
Data analysts
Systems analysts
BI
Databases
SQL
Python
Power BI
Databricks
Snowflake
Tableau
Spark
BigQuery
dbt
More
Security engineers
AppSec & DevSecOps
SOC & response
Threats & pentest
IAM
Security leaders
SIEM
ISO 27001
Zero Trust
SOC 2
Active Directory
Splunk
OWASP
PCI DSS
More
IT support
DevOps & SRE
Sysadmins
Networks
Cloud
Data centers
Linux
AWS
Azure
Kubernetes
Terraform
GCP
More
Engineering managers
Engineering directors
AI & data directors
Tech PM
CTO & C-level
Product & IT directors
Product managers
Program managers
Heads of product
Product Ops
Project managers
Scrum & Agile
Tech writers
DevRel
Release managers
AI agents
Jira
SQL
A/B tests
Power BI
More
Product designers
UX/UI
Graphic & visual
Design leads
Brand & art
Web designers
Motion
Figma
Photoshop
After Effects
Illustrator
More
Payments
Digital banking
Lending & BNPL
Trading & investing
InsurTech
RegTech & fraud
Finance software & data
Crypto
Engineering
Data & ML
Quant
Product & design
Security
More
Chip design
Fab equipment
Fabs
Electronics & RF
Embedded
Photonics
Architecture
Quantum
Engineering
Science & R&D
Technicians
Software & data
Internships
More
Defense manufacturing
C4ISR
Missiles & air defense
Electronic warfare
Military drones
Defense AI
Space defense
Intelligence
Naval
Military comms
With clearance
No clearance
Engineering
Science & R&D
Technicians
Software & data
Internships
More
Aircraft
Satellites
Avionics
Rockets & launch
Space services
Satcom
Earth observation
eVTOL
Engineering
Science & R&D
Technicians
Software & data
Internships
More
Drugs
Lab equipment
Oncology
CRO & CDMO
Biologics
Immunology
Cardiometabolic
Neurology
Vaccines
Rare diseases
Genomics
Gene therapy
Engineering
Science & R&D
Technicians
Software & data
Internships
More
Nuclear
Renewables
Storage
Hydrogen
EV charging
Fusion
Grid & electrification
Oil & Gas
Engineering
Science & R&D
Technicians
Software & data
Internships
More
Robot software
Self-driving
Industrial robots
Drones
Warehouse robots
Humanoids
Industrial automation
Mechatronics
Medical robots
Engineering
Science & R&D
Technicians
Software & data
Internships
More
EV & powertrain
ADAS & self-driving
Vehicle software
Vehicle engineering
Test & safety
Carmakers
Suppliers
Engineering
Science & R&D
Technicians
Software & data
Internships
More
Diagnostics
Surgery
Neurotech
Cardio
Diabetes
Orthopedics
Imaging
Patient monitoring
Medical robots
Engineering
Science & R&D
Technicians
Software & data
Internships
More
Physics
Chemistry
Materials
Life sciences
Earth & environment
Computational
Postdocs & fellows
Research institutes
8,978 remote jobs are open to candidates in United Kingdom.Show remote jobs
beyondtrust.com · HQ: Atlanta, United States · Identity Management · Information Security · Est. 2006 · Trust A · Hiring 42, 5 new
HQ: Atlanta, United States · Identity Management · Information Security · Est. 2006 · Trust A · Hiring 42, 5 new
BeyondTrust is a cybersecurity software company headquartered in Atlanta, Georgia, and founded in 2006. The organization provides a platform for privileged access management, identity security, and secure remote access to protect organizations from data breaches and internal threats. It operates globally across various sectors, serving thousands of customers including government agencies and large enterprises under the ownership of Francisco Partners.
pendo.io · HQ: Raleigh, United States · Product Analytics & Session Replay · 501-1000 employees · Est. 2013 · Trust A · Hiring 27, 1 new
HQ: Raleigh, United States · Product Analytics & Session Replay · 501-1000 employees · Est. 2013 · Trust A · Hiring 27, 1 new
Pendo is a software company that provides a product experience platform combining product analytics, in-app guides, session replay, user feedback and roadmapping. Software companies and enterprises use it to understand how people use their applications and AI agents and to drive adoption of features and internal tools. It has offices in Europe, India, Israel and Australia. The company is headquartered in Raleigh, North Carolina, United States.
intropic.io · HQ: London, United Kingdom · Financial Services · Hedge Funds & Alternative Investments · AI Agents · Financial Data & Market Intelligence · 51-200 employees · Trust B · Hiring 8
HQ: London, United Kingdom · Financial Services · Hedge Funds & Alternative Investments · AI Agents · Financial Data & Market Intelligence · 51-200 employees · Trust B · Hiring 8
Intropic delivers institutional-grade index rebalancing intelligence, passive fund flow analysis and quantitative research across global equity markets.
heycar is a Berlin company founded in 2017 that runs a used car marketplace listing only vehicles with warranty and history checks. Backed by Volkswagen and Mercedes-Benz financial units, it works with franchised dealers rather than private sellers. The platform operates in Germany and other European markets.
bing.com · HQ: Redmond, United States · AI Search · Search Engines · Est. 2009 · Trust B · Hiring 23
HQ: Redmond, United States · AI Search · Search Engines · Est. 2009 · Trust B · Hiring 23
Microsoft Bing is the web search engine operated by Microsoft, launched in 2009 as the successor to Live Search. It indexes web pages, images, video, news and maps, supplies search results to partner services such as Yahoo and DuckDuckGo, and adds generative AI answers through Microsoft Copilot. Bing also provides search and search advertising inside Microsoft products including Windows and the Edge browser. The company is headquartered in Redmond, Washington, United States.
tome.app · HQ: San Francisco, United States · Office & Productivity Software · Consumer & Utility Software · Est. 2020 · Startup · Trust B · Hiring 17, 1 new
HQ: San Francisco, United States · Office & Productivity Software · Consumer & Utility Software · Est. 2020 · Startup · Trust B · Hiring 17, 1 new
Tome builds generative storytelling and presentation software. Its models draft narrative documents and slides from a short prompt. The company later focused its product on sales research and outreach.
$220k – $300k per year · Staff+ · 7+ years exp · Hybrid (Cambridge, United Kingdom, San Francisco, United States) · Bachelor's Degree · Full-Time · Staff
ultra-ic.com · Tampa · Maidenhead · Farnborough · San Diego · Austin · IT Infrastructure & Networking Services · Military Communication · Trust A · Hiring 20, 1 new
Tampa · Maidenhead · Farnborough · San Diego · Austin · IT Infrastructure & Networking Services · Military Communication · Trust A · Hiring 20, 1 new
Ultra I&C delivers global mission-critical intelligence and secure communications solutions to protect what matters most.
≈ $91k – $183k per year (Estimated) · Lead · In office (Maidenhead, United Kingdom) · Master's Degree · Full-Time · Citizenship or vetting required · Principal
≈ $91k – $183k per year (Estimated) · Lead · In office (Maidenhead, United Kingdom) · Master's Degree · Full-Time · Citizenship or vetting required · Principal
multimatic.com · HQ: Markham, Canada · Automotive Components · 1001-5000 employees · Est. 1984 · Trust B · Hiring 99, 10 new
HQ: Markham, Canada · Automotive Components · 1001-5000 employees · Est. 1984 · Trust B · Hiring 99, 10 new
Multimatic is a privately held Canadian automotive supplier headquartered in Markham, Ontario, providing engineered components and systems, engineering services, low-volume complete vehicles and motorsports programs to carmakers. Founded in 1984, it runs manufacturing and engineering sites across North America, Europe and Asia, including plants in Michigan, Indiana, Pennsylvania and Tennessee, a UK base and a plant in Kunshan, China. It hires press, CNC and automated machine operators, composite technicians, tool and die makers, weld repair operators, manufacturing, quality, design and CAE engineers, material planners and engineering co-op students.
marshmclennan.com · HQ: New York, United States · 5000+ employees · Est. 1871 · Trust B · Hiring 1322, 187 new
HQ: New York, United States · 5000+ employees · Est. 1871 · Trust B · Hiring 1322, 187 new
Marsh McLennan is a global professional services firm in risk, strategy and people, headquartered in New York and listed on the New York Stock Exchange. It operates through four businesses, Marsh in insurance broking, Guy Carpenter in reinsurance, Mercer in health, wealth and benefits consulting and Oliver Wyman in management consulting, with about 90,000 colleagues in some 130 countries. It hires catastrophe risk analysts, reinsurance brokers, benefits consultants, sales executives, paralegals, software engineers and IT support staff in hubs such as London, Cluj-Napoca and Mexico City.
mistral.ai · HQ: Paris, France · Code Intelligence · AI Research Labs · LLM & Generative AI · Foundation Models · 1001-5000 employees · Est. 2023 · Trust A · Hiring 225, 8 new
HQ: Paris, France · Code Intelligence · AI Research Labs · LLM & Generative AI · Foundation Models · 1001-5000 employees · Est. 2023 · Trust A · Hiring 225, 8 new
Mistral AI is a French artificial intelligence company founded in Paris in 2023 by former researchers from Google DeepMind and Meta. It builds efficient open-weight and commercial large language models, including the Mistral, Mixtral, Magistral and Codestral families, and distributes them through its own developer platform as well as the major cloud marketplaces. Positioned as Europe's leading frontier model developer, the company also ships the Le Chat assistant, on-premise deployment options for regulated industries and a sovereign compute offering for customers who must keep data inside the region.
≈ $51k – $91k per year (Estimated) · In office (Paris, France, Amsterdam, Netherlands, Warsaw, Poland, London, United Kingdom, Berlin, Germany) · Relocation · Full-Time
≈ $46k – $82k per year (Estimated) · Paris · Amsterdam · Warsaw · London · Berlin · Remote (Germany, France, United Kingdom, Netherlands, Poland) · Relocation · Full-Time
docker.com · HQ: Palo Alto, United States · DevOps & Platform Engineering · Developer Tools · Virtualization & Containers · 201-500 employees · Est. 2011 · Trust B · Hiring 54, 3 new
HQ: Palo Alto, United States · DevOps & Platform Engineering · Developer Tools · Virtualization & Containers · 201-500 employees · Est. 2011 · Trust B · Hiring 54, 3 new
Docker is a leading software platform that enables developers to build, share, and run applications inside lightweight, isolated containers. By packaging code together with all its dependencies, the technology ensures that applications run consistently across any computing environment - from local development machines to large-scale cloud infrastructure. The platform accelerates modern software development, simplifying microservices architecture, automated deployment pipelines, and cross-team collaboration.
≈ $100k – $203k per year (Estimated) · Senior · 8+ years exp · London · Remote (EU, United States, Canada, ET hours) · Bachelor's Degree · Full-Time · Senior
kota.com · HQ: Dublin, Ireland · Health Insurance & Benefits · InsurTech · 51-200 employees · Est. 2022 · Likely startup · Hiring 10, 2 new
HQ: Dublin, Ireland · Health Insurance & Benefits · InsurTech · 51-200 employees · Est. 2022 · Likely startup · Hiring 10, 2 new
Kota is an employee benefits technology company headquartered in Dublin, Ireland, and founded in 2022. The company sells an API and platform that lets employers set up and administer health insurance, pensions, and other benefits digitally, and lets software vendors embed those benefits into their own products. It operates in Ireland, the United Kingdom, and the Netherlands, targeting small and mid-sized employers that previously arranged benefits through brokers and paperwork.
re-partners.com · HQ: New York, United States · Custom Software Development · IT Outsourcing & Dedicated Teams · IT Consulting & Digital Transformation · 201-500 employees · Est. 2019 · Trust A · Hiring 10
HQ: New York, United States · Custom Software Development · IT Outsourcing & Dedicated Teams · IT Consulting & Digital Transformation · 201-500 employees · Est. 2019 · Trust A · Hiring 10
RE Partners is a business and technology consulting firm delivering engineering services and digital transformation projects for large enterprises. Co-founded in 2019, it works as a vendor for Fortune 500 clients and hires full-stack and frontend engineers, reliability engineers and project managers in New York, London, Warsaw and Mississauga. The company is headquartered in New York City, United States.
tessl.io · HQ: London, United Kingdom · Artificial Intelligence · AI Development Tools · Code Intelligence · 201-500 employees · Est. 2024 · Startup · Hiring 7
HQ: London, United Kingdom · Artificial Intelligence · AI Development Tools · Code Intelligence · 201-500 employees · Est. 2024 · Startup · Hiring 7
Tessl helps teams build AI-native software by giving coding agents structured, versioned context. Ship AI-powered systems that hold up in real codebases.
keyrock.com · HQ: Brussels, Belgium · Blockchain & Crypto · Hedge Funds & Alternative Investments · Cryptocurrencies · 201-500 employees · Est. 2017 · Hiring 12, 4 new
HQ: Brussels, Belgium · Blockchain & Crypto · Hedge Funds & Alternative Investments · Cryptocurrencies · 201-500 employees · Est. 2017 · Hiring 12, 4 new
Keyrock is a digital asset market maker providing liquidity on centralised and decentralised venues worldwide. It runs proprietary trading technology and offers over-the-counter execution and options desks for institutional clients. The Belgian firm is one of Europe's larger crypto liquidity providers.
lightning.ai · HQ: New York, United States · AI Compute & Inference · AI Development Tools · MLOps · 501-1000 employees · Est. 2019 · Startup · Trust A · Hiring 43, 1 new
HQ: New York, United States · AI Compute & Inference · AI Development Tools · MLOps · 501-1000 employees · Est. 2019 · Startup · Trust A · Hiring 43, 1 new
Lightning AI is an artificial intelligence technology company headquartered in New York City, New York, and established in 2019. The organization provides a unified platform and the open-source PyTorch Lightning framework to facilitate the building, training, and deployment of machine learning models. It operates globally by offering scalable cloud infrastructure and development tools to individual researchers and enterprise teams across various industries.
