Support Engineer jobs in London hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $74,180/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
sanity.io · HQ: San Francisco, United States · Developer Tools · CMS & Digital Experience Platforms · 201-500 employees · Est. 2018 · Startup · Trust A · Hiring 31, 1 new
HQ: San Francisco, United States · Developer Tools · CMS & Digital Experience Platforms · 201-500 employees · Est. 2018 · Startup · Trust A · Hiring 31, 1 new
Sanity is a software company that provides a structured content platform used as a headless content management system for websites, mobile apps and AI applications. Its products include the Content Lake hosted content store, the open-source Sanity Studio editing environment and the GROQ query language, and it serves developer and content teams from offices in San Francisco, London and Oslo, where the company originated. The company is headquartered in San Francisco, California, United States.
gsacapital.com · HQ: London, United Kingdom · Hedge Funds & Alternative Investments · 201-500 employees · Est. 2005 · Trust A · Hiring 9
HQ: London, United Kingdom · Hedge Funds & Alternative Investments · 201-500 employees · Est. 2005 · Trust A · Hiring 9
GSA Capital Partners is a quantitative hedge fund and systematic trading firm. It runs market-neutral and other systematic strategies in global equities, futures and other liquid markets, relying on statistical research, technology and automated execution. GSA was founded in 2005 by a team of quantitative traders from Deutsche Bank and is headquartered in London, with an additional office in New York.
aristocrat.com · HQ: Sydney, Australia · iGaming & Gambling · Mobile Games · 5000+ employees · Est. 1953 · Trust A · Hiring 189, 29 new
HQ: Sydney, Australia · iGaming & Gambling · Mobile Games · 5000+ employees · Est. 1953 · Trust A · Hiring 189, 29 new
Aristocrat Leisure is an Australian gaming company founded in 1953 that designs and manufactures slot machines for casinos and has become one of the largest mobile game publishers in the world. Its land-based business supplies cabinets, game content and systems to casino operators across North America, Australia and Asia, while Pixel United publishes free-to-play social casino and casual mobile titles, and a separate online real money gaming division was built through the Anaxi brand and the NeoGames acquisition. Headquartered in Sydney and listed on the Australian exchange, it derives the majority of revenue from North America.
whitestuff.com · HQ: London, United Kingdom · Apparel & Fashion Brands · 1001-5000 employees · Est. 1988 · Hiring 91
HQ: London, United Kingdom · Apparel & Fashion Brands · 1001-5000 employees · Est. 1988 · Hiring 91
White Stuff is a British clothing and lifestyle brand headquartered in London that sells women's and men's clothing, footwear, accessories and gifts. It trades through its own shops on UK high streets, concessions and its online store, with a customer care and distribution base in Leicester. It hires store managers, sales assistants and head-office merchandising staff.
margo.com · HQ: Courbevoie, France · IT Staffing & Staff Augmentation · IT Consulting & Digital Transformation · 11-50 employees · Est. 2005 · Staffing · EOR · Trust A · Hiring 48, 2 new
HQ: Courbevoie, France · IT Staffing & Staff Augmentation · IT Consulting & Digital Transformation · 11-50 employees · Est. 2005 · Staffing · EOR · Trust A · Hiring 48, 2 new
Margo is a Paris-based technology engineering and AI consulting group that provides specialist consultants in data, cloud, software engineering and capital markets technology, mainly to banks, insurers and industrial clients. Founded in 2005, it has about 450 staff across Paris, London and an engineering center in Warsaw, reported turnover of 45 million euros in 2025 and runs practices such as Capital Market Technologies, Cloud Transformation and Software Engineering. It hires C#, Java and Python developers, front-office support engineers, quant developers, business analysts, data and DevOps engineers and business developers.
duffel.com · HQ: London, United Kingdom · Travel Technology · 51-200 employees · Startup · Trust B · Hiring 8
HQ: London, United Kingdom · Travel Technology · 51-200 employees · Startup · Trust B · Hiring 8
Any business – from travel startups to financial enterprises - can build with Duffel to search and book flights, stays, add ancillaries, charge customers, manage orders and more.
lendable.co.uk · HQ: London, United Kingdom · Consumer Loans & Pawnshops · 501-1000 employees · Est. 2014 · Trust A · Hiring 59, 8 new
HQ: London, United Kingdom · Consumer Loans & Pawnshops · 501-1000 employees · Est. 2014 · Trust A · Hiring 59, 8 new
Lendable is a London-based consumer finance company that uses its own automated credit decisioning technology to offer personal loans, credit cards and car finance. Founded in 2014, it provides online applications with instant quotes and funds its lending through institutional investors. Besides London it has teams in Chatham, Arlington in Virginia and Mexico City, and hires analysts, engineers, customer service staff and legal and growth roles.
ppro.com · HQ: London, United Kingdom · Payment Processing & Gateways · Est. 2006 · Trust A · Hiring 12
HQ: London, United Kingdom · Payment Processing & Gateways · Est. 2006 · Trust A · Hiring 12
PPRO is a London payments infrastructure company founded in 2006 that connects businesses to local payment methods worldwide. Its platform lets payment service providers offer wallets and bank transfer schemes in each market without building local integrations. The company works with major global acquirers and platforms.
figma.com · HQ: San Francisco, United States · Design & Prototyping Tools · Digital Design · 1001-5000 employees · Est. 2012 · NYSE: FIG · Trust A · Hiring 135, 8 new
HQ: San Francisco, United States · Design & Prototyping Tools · Digital Design · 1001-5000 employees · Est. 2012 · NYSE: FIG · Trust A · Hiring 135, 8 new
Figma is an American design software company founded in 2012 that built a full interface design tool inside the browser, which made real-time multiplayer editing the default rather than an add-on. Its products now cover interface design and prototyping, whiteboarding through FigJam, developer handoff, slide decks and a code generation product that turns designs into working front-end components. Headquartered in San Francisco, it listed on the New York Stock Exchange in 2025 after regulators blocked an attempted acquisition by Adobe, and it has become the default design tool at most software companies.
motorolasolutions.com · HQ: Chicago, United States · Civil Defense · Homeland Security · Law Enforcement · Video Surveillance · RF & Wireless Hardware · 1001-5000 employees · Est. 1928 · Trust A · Hiring 739, 55 new
HQ: Chicago, United States · Civil Defense · Homeland Security · Law Enforcement · Video Surveillance · RF & Wireless Hardware · 1001-5000 employees · Est. 1928 · Trust A · Hiring 739, 55 new
Motorola Solutions is an American company created in 2011 when Motorola split in two, taking the enterprise and public safety communications business while the handset operation became Motorola Mobility. It is the dominant supplier of land mobile radio systems to police, fire and emergency services worldwide, a business protected by long replacement cycles and deep integration with dispatch operations. Around that core the company has assembled video security and access control through the Avigilon and Pelco acquisitions, command centre software for emergency call handling and records, and increasingly AI-assisted analytics across the whole safety and security portfolio.
clarivate.com · HQ: London, United Kingdom · Scientific & Lab Software · Data Providers & Datasets · 1001-5000 employees · Est. 2016 · NYSE: CLVT · Trust A · Hiring 150, 11 new
HQ: London, United Kingdom · Scientific & Lab Software · Data Providers & Datasets · 1001-5000 employees · Est. 2016 · NYSE: CLVT · Trust A · Hiring 150, 11 new
Clarivate is an information services and analytics company headquartered in London that provides research, intellectual property and life sciences data and workflow tools, including Web of Science, Derwent, CompuMark and ProQuest. It was formed in 2016 from the former Intellectual Property and Science business of Thomson Reuters, is listed on the New York Stock Exchange and runs large teams in the US, India, Serbia and Spain. Its careers board lists patent search and drafting analysts, content analysts, software and cloud engineers, product managers and owners, and solutions sales and account managers.
caa.com · HQ: Los Angeles, United States · Film Production · Creative Agencies · Music Industry · 1001-5000 employees · Est. 1975 · Trust B · Hiring 89, 3 new
HQ: Los Angeles, United States · Film Production · Creative Agencies · Music Industry · 1001-5000 employees · Est. 1975 · Trust B · Hiring 89, 3 new
Creative Artists Agency (CAA) is a global talent and sports agency headquartered in Los Angeles, California, and founded in 1975. The company provides representation and business development services for professionals in film, television, music, sports, gaming, and digital media, while also offering brand consulting and investment banking through its various divisions. It operates through numerous international offices across North America, Europe, and Asia, serving a diverse roster of high-profile clients and corporate brands.
physicsx.ai · HQ: London, United Kingdom · AI for Science · Simulation & Digital Twin Software · Industrial AI · 201-500 employees · Est. 2019 · Startup · Trust A · Hiring 36, 7 new
HQ: London, United Kingdom · AI for Science · Simulation & Digital Twin Software · Industrial AI · 201-500 employees · Est. 2019 · Startup · Trust A · Hiring 36, 7 new
PhysicsX is a deep technology company that develops artificial intelligence and simulation software to accelerate engineering and advanced manufacturing. Founded by former Formula One engineers and computer scientists, the organization uses physics-informed AI and deep learning to optimize complex designs in fields like aerospace, automotive, and renewable energy. By replacing traditional, time-intensive physics simulations with real-time machine learning models, it enables companies to innovate faster and dramatically improve performance.
3ds.com · HQ: Vélizy-Villacoublay, France · Clinical Trial Software · Manufacturing & Industrial Software · Simulation & Digital Twin Software · CAD, PLM & BIM Software · 5000+ employees · Est. 1981 · Trust B · Hiring 560, 12 new
HQ: Vélizy-Villacoublay, France · Clinical Trial Software · Manufacturing & Industrial Software · Simulation & Digital Twin Software · CAD, PLM & BIM Software · 5000+ employees · Est. 1981 · Trust B · Hiring 560, 12 new
Dassault Systemes is a French software company founded in 1981 as a spin-off from the aircraft maker Dassault Aviation, created to commercialise the three-dimensional design tools its engineers had built in house. It sells the CATIA and SOLIDWORKS design suites, SIMULIA simulation, ENOVIA lifecycle management and DELMIA manufacturing planning, all now delivered through the 3DEXPERIENCE platform that treats a product as one connected model from concept to service. The group has extended the same virtual twin idea into life sciences through the Medidata clinical trial platform and into urban and healthcare simulation, and it is headquartered in Velizy-Villacoublay near Paris.
braintrust.dev · HQ: San Francisco, United States · AI Agents · AI Evaluation & Observability · 11-50 employees · Est. 2023 · Startup · Hiring 5, 1 new
HQ: San Francisco, United States · AI Agents · AI Evaluation & Observability · 11-50 employees · Est. 2023 · Startup · Hiring 5, 1 new
Braintrust is a San Francisco company founded in 2023 that provides evaluation and observability tooling for teams shipping large language model products. Its platform stores prompts and datasets, scores model outputs against them and tracks regressions as models and prompts change, turning AI development into a measurable engineering loop. It is used by software companies that need to compare providers and validate agents before release.
collectors.com · HQ: Santa Ana, United States · Collectibles & Trading Cards · 1001-5000 employees · Est. 1986 · Trust A · Hiring 139, 7 new
HQ: Santa Ana, United States · Collectibles & Trading Cards · 1001-5000 employees · Est. 1986 · Trust A · Hiring 139, 7 new
Collectors is a collectibles services company headquartered in Santa Ana, California, that grades, authenticates and stores trading cards, coins, comic books, autographs, video games, tickets and memorabilia. Founded in 1986 as Collectors Universe, it owns brands including PSA, PSA Vault, PCGS, Beckett, SGC and Card Ladder and employs more than 3,000 people with offices in New Jersey, Texas, Florida, Japan, China, Canada, Mexico, Germany, the UK and France. It hires grading and quality control specialists, customer care representatives, backend and payments software engineers, security and workplace managers, buyers, finance clerks and maintenance technicians.
solirius.com · HQ: London, United Kingdom · IT Consulting & Digital Transformation · Management Consulting · 51-200 employees · Trust A · Hiring 35
HQ: London, United Kingdom · IT Consulting & Digital Transformation · Management Consulting · 51-200 employees · Trust A · Hiring 35
Top of page About us We help our clients deliver transformational growth through innovative technology solutions and people-centred services. OUR APPROACH For us, it’s all about people.
replit.com · HQ: Foster City, United States · Website Builders · Code Intelligence · AI Development Tools · Developer Tools · 501-1000 employees · Est. 2016 · Startup · Trust B · Hiring 27, 1 new
HQ: Foster City, United States · Website Builders · Code Intelligence · AI Development Tools · Developer Tools · 501-1000 employees · Est. 2016 · Startup · Trust B · Hiring 27, 1 new
Replit is a browser-based software development platform that lets users write, run and deploy code without setting up a local environment. Its products include a collaborative online IDE, hosting and deployment, and Replit Agent, an AI tool that builds applications from natural-language prompts. Founded in 2016 by Amjad Masad, Faris Masad and Haya Odeh, the company is headquartered in Foster City, California, United States.
zaizi.com · HQ: London, United Kingdom · Cybersecurity · Artificial Intelligence · Government · 51-200 employees · Est. 2007 · Trust A · Hiring 15, 1 new
HQ: London, United Kingdom · Cybersecurity · Artificial Intelligence · Government · 51-200 employees · Est. 2007 · Trust A · Hiring 15, 1 new
Zaizi is a London technology company founded in 2007 that builds secure digital services for government. Its teams deliver content management, data platforms and cloud services for departments handling sensitive information. The company holds security clearances and works on border, justice and defence programmes.
plaid.com · HQ: San Francisco, United States · Financial Software & Embedded Finance · 1001-5000 employees · Est. 2013 · Trust A · Hiring 131, 15 new
HQ: San Francisco, United States · Financial Software & Embedded Finance · 1001-5000 employees · Est. 2013 · Trust A · Hiring 131, 15 new
Plaid Inc. is a financial technology company headquartered in San Francisco, California, and founded in 2013. The company develops a data transfer network and application programming interfaces that allow consumers to securely connect their bank accounts to financial applications and services. It operates globally across North America and Europe, serving over 12,000 financial institutions and powering thousands of digital finance tools for millions of users.
