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.
kota.com · HQ: Dublin, Ireland · Health Insurance & Benefits · InsurTech · 51-200 employees · Est. 2022 · Likely startup · Hiring 10, 3 new
HQ: Dublin, Ireland · Health Insurance & Benefits · InsurTech · 51-200 employees · Est. 2022 · Likely startup · Hiring 10, 3 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.
vodafone.com · HQ: Newbury, United Kingdom · IoT Connectivity · Broadband · Mobile Networks · 1001-5000 employees · Est. 1991 · Trust C · Hiring 891, 44 new
HQ: Newbury, United Kingdom · IoT Connectivity · Broadband · Mobile Networks · 1001-5000 employees · Est. 1991 · Trust C · Hiring 891, 44 new
Vodafone is a British telecommunications group whose mobile business was launched in 1985 and demerged as an independent company in 1991, growing through the 1990s into one of the largest mobile operators in the world. After years of retrenchment it now concentrates on Germany, the United Kingdom following its merger with Three, and a set of other European markets, alongside a substantial African business built around M-Pesa mobile money and a business division selling connectivity and internet of things services to corporate customers. Headquartered in Newbury and listed in London, it operates the world's largest managed internet of things connectivity platform.
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.
janestreet.com · HQ: New York, United States · Hedge Funds & Alternative Investments · 1001-5000 employees · Est. 2000 · Trust B · Hiring 167, 1 new
HQ: New York, United States · Hedge Funds & Alternative Investments · 1001-5000 employees · Est. 2000 · Trust B · Hiring 167, 1 new
Jane Street (Jane Street Capital) is a quantitative trading firm and liquidity provider specializing in automated market making, algorithmic execution, and high-frequency trading. Headquartered in New York, New York, the firm operates major regional hubs in London, Hong Kong, Singapore, and Amsterdam. Its core activities involve deploying proprietary quantitative research, machine learning models, and low-latency infrastructure to facilitate continuous trading across exchange-traded funds (ETFs), equities, options, fixed income, futures, and derivative products across more than 200 trading venues globally.
xtxmarkets.com · New York · London · Dubai · Yerevan · Bristol · Hedge Funds & Alternative Investments · 201-500 employees · Est. 2020 · Hiring 4
New York · London · Dubai · Yerevan · Bristol · Hedge Funds & Alternative Investments · 201-500 employees · Est. 2020 · Hiring 4
XTX Markets is a leading algorithmic trading firm which uses state-of-the-art machine learning technology to produce price forecasts for over 50,000 financial instruments across equities, fixed income, currencies, commodities and crypto.
Xcelirate leads the way in global technology innovation, crafting exceptionally well-designed products with the expertise of exceptionally talented individuals. Discover how you can join our dynamic team.
genomics.com · HQ: Oxford, United Kingdom · Precision Medicine · Genomics & Genetic Testing · 51-200 employees · Est. 2014 · Startup · Trust A · Hiring 11, 1 new
HQ: Oxford, United Kingdom · Precision Medicine · Genomics & Genetic Testing · 51-200 employees · Est. 2014 · Startup · Trust A · Hiring 11, 1 new
Genomics plc is an Oxford company founded in 2014 by statistical geneticists to turn genomic data into health insight. Its integrated risk tools combine polygenic scores with clinical factors to identify people at high risk of common diseases. The company works with health systems and pharmaceutical partners on prevention and drug target discovery.
gravitee.io · London · Lille · Warsaw · New Delhi · Denver · AI Agents · Integration & API Management · 201-500 employees · Est. 2015 · Startup · Trust B · Hiring 17, 1 new
London · Lille · Warsaw · New Delhi · Denver · AI Agents · Integration & API Management · 201-500 employees · Est. 2015 · Startup · Trust B · Hiring 17, 1 new
Gravitee is the AI Agent Management platform, securing, observing, and governing every AI agent, API, and event interaction at enterprise scale.
samsara.com · HQ: San Francisco, United States · Industrial IoT (IIoT) · IoT Platforms & Solutions · Fleet Management · 1001-5000 employees · Est. 2015 · NYSE: IOT · Trust B · Hiring 307, 45 new
HQ: San Francisco, United States · Industrial IoT (IIoT) · IoT Platforms & Solutions · Fleet Management · 1001-5000 employees · Est. 2015 · NYSE: IOT · Trust B · Hiring 307, 45 new
Samsara is an American industrial internet of things company that sells a connected operations cloud for fleets and physical operations. Its vehicle gateways, AI dash cams, asset trackers and equipment sensors feed software for telematics, driver safety, compliance and electronic logging, routing, maintenance and site monitoring, used by transportation, construction, field services, utilities, public sector and manufacturing customers. Founded in 2015 and listed on the New York Stock Exchange, it is headquartered in San Francisco, California, United States.
marloo.com · London · Sydney · Wellington · Financial Software & Embedded Finance · Financial AI · 51-200 employees · Startup · Hiring 10
London · Sydney · Wellington · Financial Software & Embedded Finance · Financial AI · 51-200 employees · Startup · Hiring 10
Marloo uses AI to help financial advisers stay organised and take better meeting notes, so they can focus on what they do best – rather than paperwork.
creatunity.com · HQ: Dallas, United States · Digital Marketing · Web Design · 201-500 employees · Est. 2005 · Hiring 8
HQ: Dallas, United States · Digital Marketing · Web Design · 201-500 employees · Est. 2005 · Hiring 8
Creatunity is a small American web design and web marketing agency that helps local businesses build their online presence. Founded in 2005, it offers website design and online marketing services. The company is based in Dallas, Texas, United States.
blockchain.com · HQ: London, United Kingdom · Crypto Exchanges · Crypto Wallets · 501-1000 employees · Est. 2011 · Trust A · Hiring 37
HQ: London, United Kingdom · Crypto Exchanges · Crypto Wallets · 501-1000 employees · Est. 2011 · Trust A · Hiring 37
Blockchain.com is a cryptocurrency company headquartered in London that offers a self-custody crypto wallet, a brokerage and exchange for buying, selling and trading digital assets, lending and savings products and institutional trading services, and runs a widely used Bitcoin block explorer. Founded in 2011, it reports more than 90 million wallet holders, over 40 million verified users and more than one trillion dollars in crypto transactions, with offices including Paris, Buenos Aires, New York, Dallas and Singapore. It hires back-end and front-end engineers for trading, security engineers, compliance and MLRO staff, institutional sales, marketing and country managers.
carta.com · HQ: San Francisco, United States · Financial Software & Embedded Finance · Custody & Fund Administration · 1001-5000 employees · Est. 2012 · Trust B · Hiring 74, 5 new
HQ: San Francisco, United States · Financial Software & Embedded Finance · Custody & Fund Administration · 1001-5000 employees · Est. 2012 · Trust B · Hiring 74, 5 new
Carta is a San Francisco-based financial technology company that provides software for managing capitalization tables, equity plans, valuations and ownership records for private companies, their investors and employees. Founded in 2012 as eShares, it replaced paper stock certificates and spreadsheets with digital equity management and has expanded into fund administration, fund tax and compliance services for venture capital and private equity managers. It hires software and site reliability engineers, product managers, account executives and client partners for private capital, tax delivery specialists, contracts and transactional lawyers, paralegals and customer success managers.
soundsprofitable.com · HQ: London, United Kingdom · Blogging & Newsletter Platforms · Podcasting · Est. 2017 · Hiring 20, 2 new
HQ: London, United Kingdom · Blogging & Newsletter Platforms · Podcasting · Est. 2017 · Hiring 20, 2 new
Sounds Profitable is a collection of media properties, including a newsletter and a podcast, that covers strategic and tactical changes in the business of podcasting. It is tied to FlightStory, which sells creator-led brand partnerships for shows such as The Diary of a CEO, and hires sales directors, video editors and creative producers. The company is headquartered in London, United Kingdom.
