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
9,021 remote jobs are open to candidates in United Kingdom.Show remote jobs
soprasteria.com · HQ: Annecy, France · Custom Software Development · IT Outsourcing & Dedicated Teams · Systems Integrators · IT Consulting & Digital Transformation · 5000+ employees · Est. 1968 · Trust B · Hiring 1342, 113 new
HQ: Annecy, France · Custom Software Development · IT Outsourcing & Dedicated Teams · Systems Integrators · IT Consulting & Digital Transformation · 5000+ employees · Est. 1968 · Trust B · Hiring 1342, 113 new
Sopra Steria is one of Europe's largest information technology services groups, born from the 2014 merger of Sopra and Steria. It delivers consulting, systems integration, application management and its own software for banking, insurance, aerospace and the public sector. The group employs more than fifty thousand people and keeps its registered office in Annecy.
americanexpress.com · HQ: New York, United States · Commercial & Retail Banks · Payment Processing & Gateways · Cards & Card Issuing · 5000+ employees · Est. 1850 · Trust A · Hiring 348, 54 new
HQ: New York, United States · Commercial & Retail Banks · Payment Processing & Gateways · Cards & Card Issuing · 5000+ employees · Est. 1850 · Trust A · Hiring 348, 54 new
American Express is a New York financial services company founded in 1850 as an express freight business that became a payments network and card issuer. Unlike the four-party networks it competes with, it issues most of its own cards and operates its own network, which lets it earn merchant discount revenue as well as interest and annual fees, and supports a premium rewards proposition built on travel and lounge access. Its business spans consumer and small business cards, corporate payments, merchant acquiring and travel services, and it is a component of the Dow Jones Industrial Average.
deloitte.com · HQ: London, United Kingdom · Management Consulting · Financial Advisory, Valuation & Restructuring · Tax Advisory & Preparation · Audit & Assurance Firms · 1001-5000 employees · Est. 1845 · Trust A · Hiring 487, 87 new
HQ: London, United Kingdom · Management Consulting · Financial Advisory, Valuation & Restructuring · Tax Advisory & Preparation · Audit & Assurance Firms · 1001-5000 employees · Est. 1845 · Trust A · Hiring 487, 87 new
Deloitte is one of the "Big Four" global accounting and professional services firms, providing audit, tax, consulting, and risk advisory services to organizations worldwide. Founded in London in 1845, it operates as a multinational network of independent member firms spanning over 150 countries and territories. Known for its extensive market reach and industry expertise, the organization serves a vast majority of the Fortune Global 500 companies.
fasanara.com · HQ: London, United Kingdom · Business & SME Lending · Hedge Funds & Alternative Investments · Asset Management & Funds · 51-200 employees · Est. 2011 · Trust A · Hiring 14, 3 new
HQ: London, United Kingdom · Business & SME Lending · Hedge Funds & Alternative Investments · Asset Management & Funds · 51-200 employees · Est. 2011 · Trust A · Hiring 14, 3 new
Fasanara Capital is a leading institutional asset manager and a fintech investing pioneer.
sword-group.com · HQ: Windhof, Luxembourg · IT Outsourcing & Dedicated Teams · Custom Software Development · IT Consulting & Digital Transformation · Est. 2000 · Trust A · Hiring 50, 9 new
HQ: Windhof, Luxembourg · IT Outsourcing & Dedicated Teams · Custom Software Development · IT Consulting & Digital Transformation · Est. 2000 · Trust A · Hiring 50, 9 new
Sword Group is a technology company headquartered in Windhof, Luxembourg and listed on Euronext Paris. It delivers software engineering, data and digital transformation services across Europe and beyond. The group employs several thousand specialists in more than fifty countries.
citi.com · HQ: New York, United States · Cards & Card Issuing · Payment Processing & Gateways · Wealth Management & Financial Advisors · Investment Banking & M&A Advisory · Commercial & Retail Banks · 5000+ employees · Est. 1812 · Trust A · Hiring 3584, 372 new
HQ: New York, United States · Cards & Card Issuing · Payment Processing & Gateways · Wealth Management & Financial Advisors · Investment Banking & M&A Advisory · Commercial & Retail Banks · 5000+ employees · Est. 1812 · Trust A · Hiring 3584, 372 new
Citi is one of the largest banks in the world, tracing its lineage to the City Bank of New York founded in 1812 and taking its modern shape through the 1998 merger that created Citigroup. Its most distinctive asset is a cross-border payments and treasury network unmatched by any competitor, moving trillions of dollars a day for multinational corporations, governments and other banks across roughly ninety countries. Alongside that institutional franchise it runs markets and investment banking, wealth management and a United States personal bank, and has spent recent years simplifying itself by exiting consumer operations across Asia, Europe and Latin America.
hyperexponential.com · HQ: London, United Kingdom · InsurTech · 201-500 employees · Est. 2017 · Startup · Trust A · Hiring 34, 3 new
HQ: London, United Kingdom · InsurTech · 201-500 employees · Est. 2017 · Startup · Trust A · Hiring 34, 3 new
hyperexponential is a software company building tools for the insurance industry, with a particular focus on helping insurers and reinsurers modernise how they price risk. Pricing in commercial and specialty insurance can be complex, involving large datasets, evolving assumptions, and frequent collaboration between actuaries, underwriters, and data teams. hyperexponential’s platform is designed to make that work more structured and transparent, so teams can build, test, govern, and update pricing models with greater confidence and less reliance on fragile spreadsheets or bespoke internal systems.
weareroku.com · HQ: San Jose, United States · Televisions · Streaming & OTT Platforms · 501-1000 employees · Est. 2002 · Trust A · Hiring 72, 9 new
HQ: San Jose, United States · Televisions · Streaming & OTT Platforms · 501-1000 employees · Est. 2002 · Trust A · Hiring 72, 9 new
Roku is an American streaming technology company that makes the Roku operating system, streaming players and Roku-branded televisions, and runs The Roku Channel and an advertising platform that sells ad inventory across its streaming ecosystem. Founded in 2002 by Anthony Wood and listed on Nasdaq, it licenses its TV platform to television manufacturers and has engineering teams in Bengaluru, Cambridge, Austin and other cities. The company is headquartered in San Jose, California, United States.
ripple.com · HQ: San Francisco, United States · Financial Software & Embedded Finance · Blockchain Infrastructure · Stablecoins · Crypto Payments · 1001-5000 employees · Est. 2012 · Trust A · Hiring 98, 14 new
HQ: San Francisco, United States · Financial Software & Embedded Finance · Blockchain Infrastructure · Stablecoins · Crypto Payments · 1001-5000 employees · Est. 2012 · Trust A · Hiring 98, 14 new
Ripple is an American company founded in 2012 that sells cross-border payment and custody infrastructure to financial institutions, built around the XRP Ledger and its associated digital asset. Its history is dominated by a five-year lawsuit from the Securities and Exchange Commission over whether XRP sales constituted unregistered securities offerings, which it largely won in 2023 and which ended in 2025, freeing it to expand in the United States. Headquartered in San Francisco, it has since acquired the prime brokerage Hidden Road and the stablecoin infrastructure firm Rail, and it issues the dollar stablecoin RLUSD.
roku.com · HQ: San Jose, United States · Televisions · Streaming & OTT Platforms · 501-1000 employees · Est. 2002 · Trust B · Hiring 69, 8 new
HQ: San Jose, United States · Televisions · Streaming & OTT Platforms · 501-1000 employees · Est. 2002 · Trust B · Hiring 69, 8 new
Roku is an American streaming platform company headquartered in San Jose, California, that makes the Roku operating system, streaming players and Roku-branded TVs and sells advertising across its free and paid channels. Founded in 2002 and listed on Nasdaq, it licenses its software to TV manufacturers, runs The Roku Channel and has engineering and business offices in Austin, Boston, New York, Santa Monica, Cambridge, Manchester and London. Its openings focus on software, machine learning and data engineering, data science, ad technology and search, alongside account executives, finance analysts and legal counsel.
codility.com · HQ: Warsaw, Poland · Custom Software Development · Recruiting Software & ATS · 51-200 employees · Est. 2009 · Hiring 2, 1 new
HQ: Warsaw, Poland · Custom Software Development · Recruiting Software & ATS · 51-200 employees · Est. 2009 · Hiring 2, 1 new
Codility is a technical hiring platform founded by Polish engineers in 2009 and developed largely from Warsaw. Its automated coding tests and live interview tools let employers assess programming skills at scale. Thousands of technology companies worldwide use the service to screen engineering candidates.
enginebystarling.com · London · Sydney · New York · Financial Software & Embedded Finance · Digital Banks & Neobanks · Financial Services · Est. 2016 · Hiring 15, 2 new
London · Sydney · New York · Financial Software & Embedded Finance · Digital Banks & Neobanks · Financial Services · Est. 2016 · Hiring 15, 2 new
Modernise core banking systems with Engine’s cloud-native SaaS technology. Build, launch and scale digital banking products on our award-winning platform.
ovo.com · London · Bristol · Glasgow · Energy Efficiency · Energy Management · Hiring 5, 4 new
London · Bristol · Glasgow · Energy Efficiency · Energy Management · Hiring 5, 4 new
OVO is a British energy company that supplies electricity and gas to households and works on climate and energy services. Its hubs in Bristol, Glasgow and London hire tax, analytics and security specialists. The company is based in the United Kingdom.
dat.com · Bengaluru · Washington · Denver · Portland · Supply Chain & Logistics Software · Logistics · Est. 1978 · Hiring 12, 4 new
Bengaluru · Washington · Denver · Portland · Supply Chain & Logistics Software · Logistics · Est. 1978 · Hiring 12, 4 new
DAT is a truckload freight marketplace providing market trends and data insights derived from 500 million freight matches and annual market transactions serving shippers, transportation brokers, analysts, and more.
lego.com · HQ: Billund, Denmark · 1001-5000 employees · Est. 1932 · Trust B · Hiring 359, 54 new
HQ: Billund, Denmark · 1001-5000 employees · Est. 1932 · Trust B · Hiring 359, 54 new
The LEGO Group is a privately held Danish toy manufacturer headquartered in Billund, making the LEGO brand of interlocking plastic construction bricks, sets and related games, media and retail experiences. Founded in 1932 and owned by the Kirk Kristiansen family, it runs factories in Denmark, Hungary, the Czech Republic, Mexico and China, with a new plant in Richmond, Virginia, plus offices in Copenhagen, London, Boston and a chain of LEGO brand retail stores. Its board recruits seasonal retail sales associates and store team leaders, element and product designers, production release and layout engineers, EHS technicians and corporate staff.
TD Bank Group is a Canadian bank founded in 1855 whose modern form dates from the 1955 merger of the Bank of Toronto and the Dominion Bank. It runs one of the two largest retail banking networks in Canada, an unusually large American retail franchise built along the east coast under the TD Bank brand, a wholesale bank through TD Securities and a direct investing business, and it held a substantial stake in Charles Schwab for several years. Headquartered in Toronto and listed in Toronto and New York, it has spent recent years rebuilding its anti-money-laundering controls after United States regulatory penalties.
cisco.com · HQ: San Jose, United States · Endpoint Security · Observability & APM · Unified Communications · Network Security · Network Equipment · 5000+ employees · Est. 1984 · NASDAQ: CSCO · Trust A · Hiring 1293, 190 new
HQ: San Jose, United States · Endpoint Security · Observability & APM · Unified Communications · Network Security · Network Equipment · 5000+ employees · Est. 1984 · NASDAQ: CSCO · Trust A · Hiring 1293, 190 new
Cisco Systems is an American networking company founded in 1984 by Stanford computer scientists Leonard Bosack and Sandy Lerner, and headquartered in San Jose, California. It is the largest supplier of enterprise networking equipment in the world, building the routers, switches, wireless access points and optical systems that carry traffic across corporate networks, service providers and data centres, together with the software and silicon that run them. The company has diversified heavily into security, observability through Splunk, collaboration with Webex, and AI infrastructure networking, and now earns a growing share of revenue from software subscriptions rather than hardware sales.
everfox.com · HQ: Herndon, United States · Network Security · National Security · Information Security · 1001-5000 employees · Est. 2023 · Trust A · Hiring 37, 3 new
HQ: Herndon, United States · Network Security · National Security · Information Security · 1001-5000 employees · Est. 2023 · Trust A · Hiring 37, 3 new
Founded in 2023, Everfox (formerly Forcepoint Federal) is a defense-grade cybersecurity enterprise specializing in cross-domain security, threat protection, and insider risk management. Headquartered in Herndon, Virginia, United States, the company serves governments, defense agencies, and heavily regulated industries worldwide. Through its high-assurance data transfer platforms, hardware-enforced security, and user behavior analytics, it enables secure multi-network collaboration while safeguarding mission-critical systems against complex cyber threats.