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.
dell.fi • HQ: Espoo, Finland • Hardware • Consumer Electronics • Computer Peripherals • Enterprise Storage Systems • Servers & Data Center Hardware • Laptops • 1001-5000 employees • Est. 1984 • Trust B • Hiring 353, 89 new
HQ: Espoo, Finland • Hardware • Consumer Electronics • Computer Peripherals • Enterprise Storage Systems • Servers & Data Center Hardware • Laptops • 1001-5000 employees • Est. 1984 • Trust B • Hiring 353, 89 new
Headquartered in Espoo, Finland, Dell Oy Ab operates as the Finnish subsidiary of Dell Technologies, delivering comprehensive information technology infrastructure, client devices, and enterprise solutions. The company provides a robust portfolio spanning high-performance personal computers, data center hardware, hybrid cloud platforms, and advanced IT services to businesses, public sector institutions, and consumers nationwide. By combining cutting-edge technology infrastructure with localized technical support and digital transformation expertise, it serves as a critical enabler of modern enterprise efficiency, security, and digital innovation across the Finnish market.
spotify.com • HQ: Stockholm, Sweden • Advertising • Podcasting • Music Industry • Streaming & OTT Platforms • 5000+ employees • Est. 2006 • Trust A • Hiring 90, 16 new
HQ: Stockholm, Sweden • Advertising • Podcasting • Music Industry • Streaming & OTT Platforms • 5000+ employees • Est. 2006 • Trust A • Hiring 90, 16 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.
myunidays.com • New York • London • Nottingham • 201-500 employees • Hiring 17, 5 new
New York • London • Nottingham • 201-500 employees • Hiring 17, 5 new
Geniet van geweldige studentendeals en korting op je favo merken, inclusief ASOS, Lounge, Nike, Snipes, Levis, Flixbus en meer. Meld je vandaag nog GRATIS aan voor UNiDAYS en bespaar!
kraken.tech • HQ: London, United Kingdom • Custom Software Development • Energy Management • 11-50 employees • Est. 2016 • Trust A • Hiring 59, 8 new
HQ: London, United Kingdom • Custom Software Development • Energy Management • 11-50 employees • Est. 2016 • Trust A • Hiring 59, 8 new
Kraken Technologies is a software company headquartered in London that builds Kraken, an operating platform for energy and utility companies covering billing, customer service, smart meter data, flexibility and grid operations. Created inside Octopus Energy Group in 2016, it now licenses its platform to energy suppliers and utilities such as EDF, E.ON Next, Origin Energy and Tokyo Gas, managing tens of millions of customer accounts worldwide. It hires software engineers, client data and analytics leads, implementation and delivery managers, people and compensation specialists and commercial staff.
sainsburys.jobs • HQ: London, United Kingdom • Transportation & Logistics • Logistics • 5000+ employees • Est. 2004 • Hiring 175, 107 new
HQ: London, United Kingdom • Transportation & Logistics • Logistics • 5000+ employees • Est. 2004 • Hiring 175, 107 new
Sainsbury's is one of the United Kingdom's largest and oldest multi-brand retailers, serving millions of customers through an extensive network of supermarkets and convenience stores. Headquartered in London, United Kingdom, the company manages a diverse family of household brands including Argos, Habitat, Tu Clothing, and Sainsbury's Bank. Through its comprehensive digital careers and operational platforms, the organization employs a massive workforce dedicated to delivering accessible groceries, general merchandise, and financial services nationwide.
flatiron.com • HQ: New York, United States • CRO & CDMO Services • Medical AI • Est. 2012 • Trust B • Hiring 19, 1 new
HQ: New York, United States • CRO & CDMO Services • Medical AI • Est. 2012 • Trust B • Hiring 19, 1 new
Flatiron Health is a New York company founded in 2012 that builds real-world evidence datasets from oncology electronic health records. It combines machine extraction with clinical abstraction to turn unstructured notes into research-grade data used in regulatory submissions and drug development. Acquired by Roche in 2018, it continues to operate independently and also sells software to cancer practices.
capgemini.com • HQ: Paris, France • Management Consulting • Engineering Services • Systems Integrators • IT Consulting & Digital Transformation • 5000+ employees • Est. 1967 • IT services • Trust B • Hiring 4543, 378 new
HQ: Paris, France • Management Consulting • Engineering Services • Systems Integrators • IT Consulting & Digital Transformation • 5000+ employees • Est. 1967 • IT services • Trust B • Hiring 4543, 378 new
Capgemini is a French information technology services and consulting group founded in Grenoble in 1967 by Serge Kampf, and one of the largest IT service providers in the world. It designs, builds and runs systems for large enterprises and governments across some fifty countries, with a delivery workforce concentrated in India and a European client base heavier than most of its competitors. The group is organised into Capgemini Invent for strategy and design, Capgemini Engineering for research and development services acquired with Altran, and Sogeti for local technology services, and it has reoriented its portfolio around cloud migration, data platforms and generative AI.
uipath.com • HQ: New York, United States • Document AI • AI Agents • Workflow & Process Automation (RPA, BPM) • 51-200 employees • Est. 2005 • NYSE: PATH • Trust A • Hiring 96, 13 new
HQ: New York, United States • Document AI • AI Agents • Workflow & Process Automation (RPA, BPM) • 51-200 employees • Est. 2005 • NYSE: PATH • Trust A • Hiring 96, 13 new
UiPath is a Romanian-founded American company started in Bucharest in 2005 that became the leading vendor of robotic process automation, software robots that operate other applications through their user interfaces to automate work no integration existed for. Having grown enormously on that premise, it has spent recent years absorbing the fact that language models can do parts of the same job differently, and has rebuilt its platform around agentic automation that combines deterministic robots with model-driven agents. Headquartered in New York and listed on the New York Stock Exchange, it retains one of the largest installed automation estates in the enterprise market.
caisgroup.com • HQ: New York, United States • Financial Software & Embedded Finance • 51-200 employees • Est. 2009 • Trust B • Hiring 16, 2 new
HQ: New York, United States • Financial Software & Embedded Finance • 51-200 employees • Est. 2009 • Trust B • Hiring 16, 2 new
CAIS is a New York financial technology company founded in 2009 that connects independent wealth advisers to alternative investments. Its platform handles fund access, education and operational workflow for private equity, credit and hedge fund allocations. The company serves thousands of advisory firms in the United States.
pleo.io • HQ: Copenhagen, Denmark • Cards & Card Issuing • Procurement & Spend Management • 501-1000 employees • Est. 2015 • Trust A • Hiring 26, 6 new
HQ: Copenhagen, Denmark • Cards & Card Issuing • Procurement & Spend Management • 501-1000 employees • Est. 2015 • Trust A • Hiring 26, 6 new
Pleo is a major European FinTech unicorn and smart business spend management enterprise headquartered in Copenhagen, Denmark. Founded in 2015 by Fintech entrepreneurs Jeppe Rindom (CEO) and Niccolo Perra, the company operates on a B2B SaaS subscription model combined with interchange revenue from corporate card transactions.
faculty.ai • HQ: London, United Kingdom • Management Consulting • Custom Software Development • Decision Intelligence • AI Consulting & Integration • 201-500 employees • Est. 2014 • Startup • Trust A • Hiring 65, 7 new
HQ: London, United Kingdom • Management Consulting • Custom Software Development • Decision Intelligence • AI Consulting & Integration • 201-500 employees • Est. 2014 • Startup • Trust A • Hiring 65, 7 new
Faculty is an artificial intelligence technology company headquartered in London, United Kingdom, and founded in 2014. The firm provides services including AI strategy consulting, custom software development, and specialized talent programs to help organizations implement decision intelligence. It operates as a subsidiary of Accenture and serves a global client base across sectors such as defense, healthcare, and energy, focusing on the safe and high-performance deployment of AI solutions.
kernel.ai • HQ: London, United Kingdom • B2B Company & Contact Data • Data Quality & Observability • Startup • Hiring 15, 6 new
HQ: London, United Kingdom • B2B Company & Contact Data • Data Quality & Observability • Startup • Hiring 15, 6 new
Kernel builds a business identity layer that gives AI agents and sales and operations teams trustworthy company data. It cleans duplicated records, fills in missing parent companies and corrects outdated addresses in CRMs, ERPs and third-party datasets. The company is headquartered in London, United Kingdom.
natwestgroup.com • HQ: Edinburgh, United Kingdom • Financial Services • Wealth Management & Financial Advisors • Commercial & Retail Banks • 1001-5000 employees • Est. 1727 • NYSE: NWG • Trust B • Hiring 145, 19 new
HQ: Edinburgh, United Kingdom • Financial Services • Wealth Management & Financial Advisors • Commercial & Retail Banks • 1001-5000 employees • Est. 1727 • NYSE: NWG • Trust B • Hiring 145, 19 new
NatWest Group is a British banking group with its registered office in Edinburgh that provides retail, commercial and private banking through brands including NatWest, Royal Bank of Scotland, Ulster Bank and Coutts. Formerly the Royal Bank of Scotland Group and listed on the London Stock Exchange, it serves over 20 million customers and runs large operations in London, Edinburgh, Manchester and Bristol plus technology centres in Bengaluru, Gurgaon and Chennai. It hires software, DevOps, infrastructure and site reliability engineers, product owners and technical product managers, regulatory reporting analysts and commercial banking relationship managers.
sierra.ai • HQ: San Francisco, United States • LLM & Generative AI • AI Agents • Conversational AI • 1001-5000 employees • Est. 2023 • Trust A • Hiring 172, 32 new
HQ: San Francisco, United States • LLM & Generative AI • AI Agents • Conversational AI • 1001-5000 employees • Est. 2023 • Trust A • Hiring 172, 32 new
Sierra is an American artificial intelligence company founded in 2023 by Bret Taylor, the former co-chief executive of Salesforce and chairman of OpenAI, together with a former Google engineering leader. It builds conversational agents that handle customer service interactions end to end for large consumer businesses, resolving issues by acting on the company's own systems rather than only answering questions, and it charges per resolved outcome rather than per seat. Headquartered in San Francisco and privately held at a multi-billion dollar valuation, it works with retailers, telecommunications operators, financial services firms and healthcare providers.
itv.com • HQ: London, United Kingdom • Streaming & OTT Platforms • TV Production • Broadcasting • Est. 1955 • Hiring 23, 6 new
HQ: London, United Kingdom • Streaming & OTT Platforms • TV Production • Broadcasting • Est. 1955 • Hiring 23, 6 new
Headquartered in London, United Kingdom, ITV is a public media and television production conglomerate operating as the UK's largest commercial broadcaster. The company functions through two core divisions: Media & Entertainment, which operates its portfolio of free-to-air linear channels and the ITVX streaming platform, and ITV Studios, an international content creator and distributor.
broadridge.com • HQ: Lake Success, United States • Custody & Fund Administration • Financial Software & Embedded Finance • 5000+ employees • Est. 2007 • Trust B • Hiring 247, 24 new
HQ: Lake Success, United States • Custody & Fund Administration • Financial Software & Embedded Finance • 5000+ employees • Est. 2007 • Trust B • Hiring 247, 24 new
Broadridge is an American financial technology company spun out of ADP in 2007 that operates much of the invisible infrastructure behind securities markets. It processes shareholder communications and proxy voting for the large majority of United States public company shares, runs post-trade processing and clearance systems for broker-dealers, and sells wealth management, capital markets and communications platforms to banks and asset managers. Headquartered in New York and listed on the New York Stock Exchange, its revenue is almost entirely recurring because clients cannot easily move the record-keeping systems it operates.
Nationwide Building Society is a UK mutual financial institution headquartered in Swindon, England, providing mortgages, current accounts, savings, credit cards and business banking to its members. Owned by its members rather than shareholders, it is the largest building society in the world, operates a national branch network and acquired Virgin Money UK in 2024. Its openings span software, data and integration engineering, analytics, compliance, risk and audit roles, mortgage technical delivery, customer support and branch management, mainly in Swindon, London, Northampton and Glasgow.
seedtag.com • HQ: Madrid, Spain • Artificial Intelligence • Advertising • Est. 2014 • Hiring 14, 1 new
HQ: Madrid, Spain • Artificial Intelligence • Advertising • Est. 2014 • Hiring 14, 1 new
Seedtag is a Madrid advertising technology company founded in 2014 by two former Google employees. Its contextual advertising engine reads the meaning of articles and images to place ads without using personal identifiers. The company operates across Europe and the Americas and is a reference in cookieless advertising.
≈ $59k – $121k per year (Estimated) • Senior • Madrid • Barcelona • Hamburg • London • Milan • Remote (Germany, France, United Kingdom, Belgium, Italy) • Full-Time • Senior
ripple.com • HQ: San Francisco, United States • Financial Software & Embedded Finance • Blockchain Infrastructure • Stablecoins • Crypto Payments • 1001-5000 employees • Est. 2012 • Trust A • Hiring 88, 12 new
HQ: San Francisco, United States • Financial Software & Embedded Finance • Blockchain Infrastructure • Stablecoins • Crypto Payments • 1001-5000 employees • Est. 2012 • Trust A • Hiring 88, 12 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.
