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
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
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
8,773 remote jobs are open to candidates in United Kingdom.Show remote jobs
kaluza.com • HQ: London, United Kingdom • Billing & Subscription Management • Smart Grid • Energy Management • 51-200 employees • Est. 2019 • Startup • Trust B • Hiring 36, 6 new
HQ: London, United Kingdom • Billing & Subscription Management • Smart Grid • Energy Management • 51-200 employees • Est. 2019 • Startup • Trust B • Hiring 36, 6 new
Kaluza is a London energy software company that grew out of OVO Energy and became a separate business in 2019. Its platform runs retail energy billing and orchestrates flexible devices such as electric vehicles and heat pumps to shift demand. The company licenses the technology to energy retailers in Britain, Europe, Japan and Australia.
graphcore.ai • HQ: Bristol, United Kingdom • AI Chips & Accelerators • Processors, MCUs & AI Chips • 1001-5000 employees • Est. 2016 • Trust A • Hiring 200, 45 new
HQ: Bristol, United Kingdom • AI Chips & Accelerators • Processors, MCUs & AI Chips • 1001-5000 employees • Est. 2016 • Trust A • Hiring 200, 45 new
Graphcore is a British semiconductor company founded in Bristol in 2016 that designs the Intelligence Processing Unit, a processor architected specifically for machine learning rather than adapted from graphics. Its chips place large amounts of memory directly on the die and expose fine-grained parallelism, an approach aimed at sparse and irregular models that map poorly onto conventional accelerators. The company sells IPU systems and the Poplar software stack to research and enterprise customers, and has operated as a wholly owned subsidiary of SoftBank Group since its acquisition in 2024.
kast.xyz • Dubai • London • San Francisco • Colombo • Dublin • Digital Banks & Neobanks • Cryptocurrencies • 51-200 employees • Startup • Hiring 5, 1 new
Dubai • London • San Francisco • Colombo • Dublin • Digital Banks & Neobanks • Cryptocurrencies • 51-200 employees • Startup • Hiring 5, 1 new
KAST is a fintech company that provides a global, stablecoin-powered financial platform designed for borderless spending, saving, and money transfers. Operating similarly to a digital neobank, it offers users virtual USD and EU account details along with Visa debit cards that convert digital assets into fiat at checkout. The platform enables freelancers, remote workers, and global users to earn yield on idle balances, send low-cost international transfers, and receive real-time rewards.
bt.com • HQ: London, United Kingdom • Telecommunications • Broadband • 5000+ employees • Est. 2001 • Trust A • Hiring 78, 28 new
HQ: London, United Kingdom • Telecommunications • Broadband • 5000+ employees • Est. 2001 • Trust A • Hiring 78, 28 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.
wise.com • HQ: London, United Kingdom • Currency Exchange & FX Payments • Money Transfer & Remittances • 1001-5000 employees • Est. 2011 • Trust B • Hiring 380, 82 new
HQ: London, United Kingdom • Currency Exchange & FX Payments • Money Transfer & Remittances • 1001-5000 employees • Est. 2011 • Trust B • Hiring 380, 82 new
Wise is a British financial technology company founded in 2011 by two Estonians who were frustrated by the cost of moving money between pounds and euros. It built a network of local bank accounts in each market so that most transfers never cross a border, publishes the mid-market exchange rate with an explicit fee, and has extended the model into multi-currency accounts, debit cards, business payments and an infrastructure product that banks resell. The company listed directly on the London Stock Exchange in 2021 and moves tens of billions of pounds for millions of personal and business customers each quarter.
suttonpcns.co.uk • Sutton • Health Care • Primary Care & Medical Centers • Hiring 1, 1 new
Sutton • Health Care • Primary Care & Medical Centers • Hiring 1, 1 new
Sutton Primary Care Networks is the collaborative vehicle for the four Sutton PCNs and the former Sutton GP Federation working together as a single entity.
slice.careers • Skopje • Pristina • Belfast • Debar • New York • E-commerce Platforms • Marketplaces • Likely startup • Trust B • Hiring 20, 1 new
Skopje • Pristina • Belfast • Debar • New York • E-commerce Platforms • Marketplaces • Likely startup • Trust B • Hiring 20, 1 new
Slice is a technology company supporting independent small businesses such as local pizzerias with technology, services and collective buying power. It serves tens of thousands of restaurants, and its job ads seek engineers, social media coordinators and customer experience representatives in Skopje, Pristina and Belfast. The company is based in the United States.
providecommunity.org.uk • Colchester • Home Care Services • Nursing Homes & Long-Term Care • Hiring 1, 1 new
Colchester • Home Care Services • Nursing Homes & Long-Term Care • Hiring 1, 1 new
Scroll Top Who We Are – Essex, East Anglia, Dorset and northern England Who We Are Home Who We Are – Essex, East Anglia, Dorset and northern England Welcome to Provide Community, where compassion meets innovation in the pursuit of community wellness.
modelwise.ai • HQ: Munich, Germany • Internet Services • Internet Service Providers • Artificial Intelligence • Manufacturing • 1001-5000 employees • Est. 2020 • Trust B • Hiring 377, 66 new
HQ: Munich, Germany • Internet Services • Internet Service Providers • Artificial Intelligence • Manufacturing • 1001-5000 employees • Est. 2020 • Trust B • Hiring 377, 66 new
Headquartered in Munich, Germany, Modelwise is a deep-tech software company specializing in AI-driven functional safety engineering for complex hardware systems. The platform automates safety analysis and verification tasks, enabling engineers to identify design flaws early and accelerate development cycles. By streamlining compliance workflows, it helps engineering teams across the automotive, aerospace, rail, and industrial automation sectors build safer products faster.
moonpig.com • HQ: London, United Kingdom • E-commerce Platforms • Gifts, Party Supplies & Souvenirs • Est. 2000 • Hiring 13, 2 new
HQ: London, United Kingdom • E-commerce Platforms • Gifts, Party Supplies & Souvenirs • Est. 2000 • Hiring 13, 2 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.
echobox.com • HQ: London, United Kingdom • Artificial Intelligence • Data & Analytics • Media & Entertainment • Digital Media • Social Media Marketing • 201-500 employees • Startup • Hiring 3, 3 new
HQ: London, United Kingdom • Artificial Intelligence • Data & Analytics • Media & Entertainment • Digital Media • Social Media Marketing • 201-500 employees • Startup • Hiring 3, 3 new
Unify social publishing, newsletters, realtime analytics, benchmarking, reporting and creative production in one AI-powered platform built for publishers.
arm.com • HQ: Cambridge, United Kingdom • Processors, MCUs & AI Chips • Semiconductor IP & Chip Design Services • 1001-5000 employees • Est. 1990 • Trust A • Hiring 396, 47 new
HQ: Cambridge, United Kingdom • Processors, MCUs & AI Chips • Semiconductor IP & Chip Design Services • 1001-5000 employees • Est. 1990 • Trust A • Hiring 396, 47 new
Arm Holdings is a British semiconductor and software design company headquartered in Cambridge, England. Rather than manufacturing physical chips directly, Arm designs energy-efficient central processing unit (CPU) architectures and intellectual property (IP), licensing them to major technology partners such as Apple, Qualcomm, Samsung, and Nvidia.
insulet.com • HQ: Acton, United States • Diabetes Devices • 1001-5000 employees • Est. 2000 • NASDAQ: PODD • Trust A • Hiring 177, 23 new
HQ: Acton, United States • Diabetes Devices • 1001-5000 employees • Est. 2000 • NASDAQ: PODD • Trust A • Hiring 177, 23 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.
proofpoint.com • HQ: Sunnyvale, United States • Data Loss Prevention • Email Security • Cybersecurity AI • Information Security • 1001-5000 employees • Est. 2002 • Trust B • Hiring 111, 14 new
HQ: Sunnyvale, United States • Data Loss Prevention • Email Security • Cybersecurity AI • Information Security • 1001-5000 employees • Est. 2002 • Trust B • Hiring 111, 14 new
Proofpoint is an American cybersecurity company founded in 2002 that concentrates on the channels people use rather than the network they sit on, starting from email and expanding into the wider problem of how employees are targeted and how data leaves an organisation. Its products cover email security, insider threat management, data loss prevention, security awareness training and digital risk protection, sold on the premise that most breaches begin with a person rather than a system. Headquartered in Sunnyvale and taken private by Thoma Bravo in 2021, it serves a large share of the Fortune 100 and has continued acquiring in the data security space.
boeing.com • HQ: Arlington, United States • Aerospace Manufacturing • Combat Aircraft • Aircraft Manufacturing • 1001-5000 employees • Est. 1916 • Trust A • Hiring 683, 212 new
HQ: Arlington, United States • Aerospace Manufacturing • Combat Aircraft • Aircraft Manufacturing • 1001-5000 employees • Est. 1916 • Trust A • Hiring 683, 212 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.
bp.com • HQ: London, United Kingdom • Fossil Fuels • Oil & Gas • 1001-5000 employees • Est. 1909 • Trust A • Hiring 230, 56 new
HQ: London, United Kingdom • Fossil Fuels • Oil & Gas • 1001-5000 employees • Est. 1909 • Trust A • Hiring 230, 56 new
BP is a British integrated energy company that explores for and produces oil and natural gas, refines and trades fuels, and sells them through its retail stations, lubricants brands such as Castrol and aviation fuel business. It operates in around 60 countries and is investing in lower-carbon businesses including EV charging, biofuels, hydrogen and renewable power, with large business and technology centres in Pune, Kuala Lumpur and Budapest. The company is headquartered in London, England, United Kingdom.
futureplc.com • HQ: Bath, United Kingdom • Digital Media • Content Creation • Publishing • Est. 1985 • Trust A • Hiring 27, 5 new
HQ: Bath, United Kingdom • Digital Media • Content Creation • Publishing • Est. 1985 • Trust A • Hiring 27, 5 new
Headquartered in Bath, United Kingdom, Future plc is an international platform media company and publisher of specialized digital and print media. The company operates a vast portfolio of well-known brands across technology, gaming, lifestyle, and finance, including popular titles such as TechRadar, PC Gamer, and Tom's Guide. Through its proprietary technology platforms, digital advertising, and e-commerce affiliate networks, it connects content creators with high-intent global audiences.
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 56, 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 56, 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.
