Backend Developer jobs in London hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $213,465/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
disguise.one · HQ: London, United Kingdom · Video Production · Pro AV & Digital Signage · 201-500 employees · Est. 2000 · Hiring 4
HQ: London, United Kingdom · Video Production · Pro AV & Digital Signage · 201-500 employees · Est. 2000 · Hiring 4
disguise is a London company that builds the media servers and software used to drive large-scale live visuals. Its systems power concert tours, broadcast sets and extended reality stages where camera tracking must match rendered content frame by frame. The company is a standard tool in touring production and virtual production worldwide.
lumalabs.ai · HQ: Palo Alto, United States · Generative 3D · Generative Image · Generative Video · 201-500 employees · Est. 2021 · Startup · Hiring 25
HQ: Palo Alto, United States · Generative 3D · Generative Image · Generative Video · 201-500 employees · Est. 2021 · Startup · Hiring 25
Luma AI is an artificial intelligence company that specializes in building advanced 3D visual technology and generative AI tools. Founded in 2021, the company is best known for its realistic text-to-3D models, NeRF (Neural Radiance Fields) capture app, and its high-quality video generation model, Dream Machine. By enabling creators and developers to easily capture, generate, and edit photorealistic 3D assets and video, it aims to make next-generation digital media creation accessible to everyone.
paconsulting.com · HQ: London, United Kingdom · Engineering Services · Management Consulting · 501-1000 employees · Est. 1943 · IT services · Trust B · Hiring 95, 12 new
HQ: London, United Kingdom · Engineering Services · Management Consulting · 501-1000 employees · Est. 1943 · IT services · Trust B · Hiring 95, 12 new
PA Consulting is a British consultancy founded in 1943 that combines management consulting with product design and engineering, an unusual pairing that lets it take a client from strategy through to a physical or digital product. Its work spans government and defence, health and life sciences, energy and utilities, consumer and manufacturing, and its Cambridge technology centre has designed everything from medical devices to the original mechanism behind the Trident razor. Headquartered in London and majority owned by Jacobs since 2021, it employs several thousand consultants, engineers and designers.
frankenburg.tech · HQ: Tallinn, Estonia · Defense Manufacturing · Missiles · 11-50 employees · Est. 2024 · Hiring 9, 1 new
HQ: Tallinn, Estonia · Defense Manufacturing · Missiles · 11-50 employees · Est. 2024 · Hiring 9, 1 new
Frankenburg Technologies is an Estonian defence technology company founded in 2024 and based in Tallinn. It develops low-cost guided missiles and air defence interceptors. The company was founded by a former Estonian defence official.
quantexa.com · HQ: London, United Kingdom · Financial AI · Master Data Management · Fraud Detection · Decision Intelligence · 501-1000 employees · Est. 2016 · Startup · Trust B · Hiring 31, 8 new
HQ: London, United Kingdom · Financial AI · Master Data Management · Fraud Detection · Decision Intelligence · 501-1000 employees · Est. 2016 · Startup · Trust B · Hiring 31, 8 new
Quantexa is a global decision intelligence company that helps organizations solve complex data challenges in risk, compliance, and strategic growth. Headquartered in London, United Kingdom, the enterprise utilizes advanced AI and entity resolution technology to connect siloed data into contextual network views. Its platform enables banks, public sector institutions, and insurance firms to automate decision-making processes, combat financial crime, and mitigate fraud.
refractal-ai.com · New York · London · Boston · Austin · Podgorica · Cybersecurity AI · Cybersecurity · Artificial Intelligence · 501-1000 employees · Est. 2024 · Startup · Hiring 28
New York · London · Boston · Austin · Podgorica · Cybersecurity AI · Cybersecurity · Artificial Intelligence · 501-1000 employees · Est. 2024 · Startup · Hiring 28
Refractal builds security infrastructure for high-assurance AI. Stress test agents before deployment, protect them in production, and stay compliant.
HQ: London, United Kingdom · Clinical Trial Services (CRO) · 51-200 employees · Est. 2021 · Startup · Hiring 3
Lindus Health is an artificial intelligence native contract research organisation that runs clinical trials end to end. Founded in 2021 in London, it automates protocol design, site work and data management that legacy providers do manually. Biotech sponsors use it to cut trial timelines and fixed costs.
lovable.dev · HQ: Stockholm, Sweden · HQ: Unterschleißheim, Germany · Low-Code & No-Code Platforms · AI Development Tools · 501-1000 employees · Est. 2023 · Startup · Trust B · Hiring 74, 3 new
HQ: Stockholm, Sweden · HQ: Unterschleißheim, Germany · Low-Code & No-Code Platforms · AI Development Tools · 501-1000 employees · Est. 2023 · Startup · Trust B · Hiring 74, 3 new
Lovable is an AI-powered software development platform headquartered in Stockholm, Sweden. Founded in 2023 by Anton Osika and Fabian Hedin, the company operates a conversational "vibe coding" environment that enables both non-technical creators and software engineers to build, iterate, and deploy full-stack web applications using natural language prompts. Lovable automates front-end UI generation, back-end code creation, database connections, and GitHub workflow syncing, allowing users to move rapidly from product idea to production-ready application.
expedia.com · HQ: Seattle, United States · Vacation Rentals · Travel & Tourism · Travel Agencies · 1001-5000 employees · Trust B · Hiring 120, 14 new
HQ: Seattle, United States · Vacation Rentals · Travel & Tourism · Travel Agencies · 1001-5000 employees · Trust B · Hiring 120, 14 new
Headquartered in Seattle, Washington, Expedia Group is a leading global travel technology company that operates a comprehensive portfolio of online travel and booking platforms. The company manages an extensive network of popular consumer brands, including Hotels.com, Vrbo, and its flagship namesake service, enabling users to effortlessly reserve flights, hotels, car rentals, and vacation packages. Through its robust digital marketplace infrastructure and advanced travel solutions, it seamlessly connects millions of travelers with hospitality providers worldwide.
elsevier.com · HQ: Amsterdam, Netherlands · Clinical Decision Support · Scientific & Lab Software · Publishing · 5000+ employees · Est. 1880 · Trust B · Hiring 182, 21 new
HQ: Amsterdam, Netherlands · Clinical Decision Support · Scientific & Lab Software · Publishing · 5000+ employees · Est. 1880 · Trust B · Hiring 182, 21 new
Elsevier is a Dutch scientific, technical and medical information and analytics company headquartered in Amsterdam that publishes journals and books and builds research and clinical decision tools such as ScienceDirect, Scopus and ClinicalKey. Founded in 1880 and owned by the RELX group, it serves researchers, universities, hospitals and healthcare professionals worldwide, with large offices in London, Oxford, Philadelphia, New York, Chennai and Bengaluru. It hires software, data and site reliability engineers, AI engineers, product managers, journal editors, publishing and client success consultants, and solution and sales consultants.
genpact.com · HQ: New York, United States · Management Consulting · IT Consulting & Digital Transformation · Business Process Outsourcing (BPO) · 5000+ employees · Est. 1997 · NYSE: G · IT services · Trust B · Hiring 798, 103 new
HQ: New York, United States · Management Consulting · IT Consulting & Digital Transformation · Business Process Outsourcing (BPO) · 5000+ employees · Est. 1997 · NYSE: G · IT services · Trust B · Hiring 798, 103 new
Genpact is a professional services company that began in 1997 as a business process unit inside GE Capital in India, and was spun out as an independent firm in 2005. It runs finance and accounting, supply chain, procurement, risk and customer operations on behalf of large enterprises, combining offshore delivery with process reengineering and increasingly with automation rather than pure labour arbitrage. Headquartered in New York and listed on the New York Stock Exchange, the company employs well over a hundred thousand people, mostly in India, and has repositioned its offering around agentic AI embedded into the processes it already operates.
lendable.co.uk · HQ: London, United Kingdom · Consumer Loans & Pawnshops · 501-1000 employees · Est. 2014 · Trust B · Hiring 52, 3 new
HQ: London, United Kingdom · Consumer Loans & Pawnshops · 501-1000 employees · Est. 2014 · Trust B · Hiring 52, 3 new
Lendable is a London-based fintech company that uses artificial intelligence and proprietary technology to automate credit decisions for consumer finance products, including personal loans, credit cards, and car finance. Founded in 2014, the platform connects institutional investors directly with individual borrowers, providing streamlined digital applications that offer instant quotes and fast payouts without long paperwork.
InvestEngine brings unbeatable value and innovation to your investing. No buying and selling fees for 870+ exchange-traded funds from iShares, Vanguard and other leading brands. With powerful tools for automating, diversifying and analysing your portfolio. All you need to grow your wealth. Our portfolios are available in an ISA, General Account, or Business Account for companies — all with easy access and for a minimum investment of only £100.
sees.ai · HQ: Chicago, United States · Drone AI · Drones & UAVs · 11-50 employees · Est. 2018 · Startup · Hiring 10
HQ: Chicago, United States · Drone AI · Drones & UAVs · 11-50 employees · Est. 2018 · Startup · Hiring 10
Sees.ai delivers highly autonomous BVLOS drone inspections for electricity grids, capturing consistent, high-quality asset condition data at national scale.
gresearch.com · HQ: London, United Kingdom · Machine Learning · Hedge Funds & Alternative Investments · 201-500 employees · Est. 2001 · Trust A · Hiring 60, 1 new
HQ: London, United Kingdom · Machine Learning · Hedge Funds & Alternative Investments · 201-500 employees · Est. 2001 · Trust A · Hiring 60, 1 new
G-Research is a quantitative research and technology firm headquartered in London that applies machine learning, big data and high-performance computing to predict movements in global financial markets. It brings researchers and engineers together in its Soho Place office in central London, opened in 2023, has a further office in Dallas, and funds PhD prizes, monthly research grants and work experience programmes for students. It hires quantitative researchers and developers, C++ and machine learning engineers, Kubernetes and platform engineers, network and database engineers, engineering managers and analytics staff.
anduril.com · HQ: Costa Mesa, United States · Defense Manufacturing · C4ISR · Military Drones · Defense AI · 5000+ employees · Est. 2017 · Trust B · Hiring 2214, 150 new
HQ: Costa Mesa, United States · Defense Manufacturing · C4ISR · Military Drones · Defense AI · 5000+ employees · Est. 2017 · Trust B · Hiring 2214, 150 new
Anduril Industries is an American defence technology company founded in 2017 that builds autonomous systems and command software for military and border security customers. Rather than bidding on cost-plus programmes, it develops products with its own capital and sells them as finished systems, from surveillance towers and counter-drone interceptors to underwater vehicles and collaborative combat aircraft. Its Lattice software platform fuses sensor data into a single operating picture and controls the hardware family, and the company is headquartered in Costa Mesa, California with a large manufacturing site in Ohio.
coralogix.com · HQ: Tel Aviv, Israel · Security Operations · Log Management & Analytics · Observability & APM · Est. 2014 · Startup · Hiring 56, 2 new
HQ: Tel Aviv, Israel · Security Operations · Log Management & Analytics · Observability & APM · Est. 2014 · Startup · Hiring 56, 2 new
Coralogix is an observability company founded in 2014 and headquartered in Tel Aviv that offers a telemetry lake platform for ingesting, analysing and storing logs, metrics, traces and security data. Its platform processes data in a streaming pipeline before indexing, keeps it in the customer's own cloud storage and adds APM, real user monitoring, SIEM and AI observability modules with more than 300 integrations, and Gartner named it a Leader in its Magic Quadrant for Observability Platforms. It has offices in Ramat Gan, Boston, Plano, London, San Francisco, Gurgaon and Bucharest and hires software engineers, solution engineers, technical account managers and enterprise sales staff.
nomura.com · HQ: Tokyo, Japan · Wealth Management & Financial Advisors · Asset Management & Funds · Online Brokerage & Trading Platforms · Investment Banking & M&A Advisory · 1001-5000 employees · Est. 1925 · Trust A · Hiring 186, 14 new
HQ: Tokyo, Japan · Wealth Management & Financial Advisors · Asset Management & Funds · Online Brokerage & Trading Platforms · Investment Banking & M&A Advisory · 1001-5000 employees · Est. 1925 · Trust A · Hiring 186, 14 new
Nomura is a Tokyo-based global financial services group, held by Nomura Holdings, that serves individuals, institutions, corporates and governments through wealth management, investment management and wholesale businesses covering global markets and investment banking. Founded in 1925 and listed in Tokyo and New York, it operates an integrated network across about 30 countries and regions, with major hubs in London, New York, Hong Kong and Singapore and a large technology and operations center in Mumbai. Its postings span software and quality engineering, infrastructure operations, risk, liquidity and treasury, audit, legal, procurement and investment banking roles.
citystgeorges.ac.uk · HQ: London, United Kingdom · Higher Education · 501-1000 employees · Hiring 44, 9 new
HQ: London, United Kingdom · Higher Education · 501-1000 employees · Hiring 44, 9 new
City St George's, University of London is a university in London that combines teaching and research across disciplines such as digital technology, the built environment and health. It employs postdoctoral research associates, student engagement and funding officers, planning and data analysts and operations managers. The university is based in London, United Kingdom.
