Machine Learning Engineer jobs in London hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $253,170/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
optimizely.com · HQ: New York, United States · Data & Analytics · Software · Sales & Marketing · Artificial Intelligence · Commerce · Digital Marketing · Marketing Automation · Recommendation Systems · CMS & Digital Experience Platforms · A/B Testing & Experimentation · 1001-5000 employees · Hiring 49, 3 new
HQ: New York, United States · Data & Analytics · Software · Sales & Marketing · Artificial Intelligence · Commerce · Digital Marketing · Marketing Automation · Recommendation Systems · CMS & Digital Experience Platforms · A/B Testing & Experimentation · 1001-5000 employees · Hiring 49, 3 new
Optimizely is a digital experience platform company headquartered in New York City that sells content management, experimentation and A/B testing, personalization, commerce and AI-driven marketing software. It took its current form when Episerver acquired Optimizely in 2020 and adopted its name, and it now has more than 1,600 employees in over 20 offices, with customers including H&M, PayPal and Zoom among more than 10,000 brands. It hires software and AI engineers, .NET developers, account executives, sales development representatives, customer success managers and marketing analytics specialists.
perplexity.ai · HQ: San Francisco, United States · Foundation Models · LLM & Generative AI · Search Engines · AI Search · 1001-5000 employees · Est. 2022 · Trust B · Hiring 136, 4 new
HQ: San Francisco, United States · Foundation Models · LLM & Generative AI · Search Engines · AI Search · 1001-5000 employees · Est. 2022 · Trust B · Hiring 136, 4 new
Perplexity AI is an American company that builds an answer engine combining live web search with large language models to return sourced, conversational responses instead of a list of links. Its products span a consumer assistant on web and mobile, the Comet browser, enterprise search over internal documents and the Sonar developer API that exposes the same grounded retrieval stack. Founded in 2022 in San Francisco by former researchers and engineers from OpenAI, Meta and Databricks, the company is backed by NVIDIA, IVP, New Enterprise Associates and SoftBank.
radiant.com · HQ: London, United Kingdom · MLOps · AI Compute & Inference · Trust B · Hiring 18, 1 new
HQ: London, United Kingdom · MLOps · AI Compute & Inference · Trust B · Hiring 18, 1 new
Radiant is a technology company that develops infrastructure products for artificial intelligence workloads. Its product teams work on machine learning operations, storage and compute infrastructure, and it hires product managers, field product engineers and machine learning product engineers. Most of its team is based in London, with a smaller presence in Paris. The company is headquartered in London, England, United Kingdom.
almedia.co · HQ: Berlin, Germany · Digital Marketing · Advertising · Loyalty Programs · 1001-5000 employees · Est. 2020 · Trust A · Hiring 22, 2 new
HQ: Berlin, Germany · Digital Marketing · Advertising · Loyalty Programs · 1001-5000 employees · Est. 2020 · Trust A · Hiring 22, 2 new
Almedia is a Berlin-based advertising technology company founded in 2020 that specializes in performance marketing and rewarded user acquisition for mobile games and apps. Operating platforms such as Freecash.com, the firm connects global consumer brands and game developers with millions of users by offering real-money and cashback incentives for completing targeted in-app tasks. Through its data-driven reward funnels, the company helps digital advertisers increase player retention, drive higher lifetime value (LTV), and scale customer growth efficiently.
goodnotes.com · HQ: Hong Kong · Consumer & Utility Software · Office & Productivity Software · 51-200 employees · Est. 2011 · Hiring 5
HQ: Hong Kong · Consumer & Utility Software · Office & Productivity Software · 51-200 employees · Est. 2011 · Hiring 5
GoodNotes is a popular note-taking app that is loved by students, digital planners, and notetakers all over the world. It is available for free download on the App Store. With GoodNotes, you can take notes, shape your ideas, and share them with ease using the world's best-loved digital paper. The app offers a range of features and benefits, including handwriting recognition and OCR technology, making your entire library of digital notes searchable. You can effortlessly write out equations, draw mind maps, mark up PDFs, and more. GoodNotes also allows you to organize your notes better with folders and subfolders, helping you stay organized in your studies or work. Plus, you can back up your notes to Google Drive, OneDrive, or Dropbox for added security. The app also offers automatic iCloud sync to ensure that the latest versions of your notes are always accessible across all your devices. Millions of students around the world choose GoodNotes for its reliability and versatility. Download GoodNotes today for free and experience the freedom and convenience of digital note-taking on your iPad, iPhone, or Mac.
fdjunited.com · HQ: Boulogne-Billancourt, France · Sports Betting · iGaming & Gambling · 1001-5000 employees · Trust B · Hiring 26, 2 new
HQ: Boulogne-Billancourt, France · Sports Betting · iGaming & Gambling · 1001-5000 employees · Trust B · Hiring 26, 2 new
FDJ United is a European betting and gaming operator headquartered in Boulogne-Billancourt, France, that runs the French national lottery and retail sports betting under exclusive rights and offers online betting and gaming brands in markets open to competition. The group descends from the National Lottery created in 1933 to aid wounded First World War veterans, took the FDJ United name in 2025 after La Française des Jeux acquired Kindred Group, and has more than 5,000 employees in about fifteen regulated markets. Hiring spans AML and responsible gaming specialists, customer service agents, software and data engineers in London, Malta, Stockholm and France.
salesforce.com · HQ: San Francisco, United States · AI Agents · Marketing Automation · Customer Support & Help Desk Software · BI & Dashboard Software · CRM Software · 5000+ employees · Est. 1999 · Trust B · Hiring 1346, 139 new
HQ: San Francisco, United States · AI Agents · Marketing Automation · Customer Support & Help Desk Software · BI & Dashboard Software · CRM Software · 5000+ employees · Est. 1999 · Trust B · Hiring 1346, 139 new
Salesforce is an American enterprise software company founded in 1999 that pioneered delivering business applications over the internet rather than as installed software. Its Customer 360 platform brings sales, service, marketing, commerce and analytics onto shared customer data, extended by the Slack collaboration suite, the Tableau analytics business and the MuleSoft integration layer. Headquartered in San Francisco, the company has moved its product strategy toward autonomous agents through Agentforce and the Data Cloud, and it remains the largest customer relationship management vendor in the world by revenue share.
trafigura.com · HQ: Singapore · Non-ferrous Metals · Oil & Gas · 5000+ employees · Est. 1993 · Trust B · Hiring 60, 6 new
HQ: Singapore · Non-ferrous Metals · Oil & Gas · 5000+ employees · Est. 1993 · Trust B · Hiring 60, 6 new
Trafigura is an employee-owned commodity trading group, legally based in Singapore, that sources, stores, transports and trades crude oil, refined products, natural gas, power, metals and minerals. Founded in 1993, it is one of the largest independent commodity traders, with major offices in Geneva and Houston and port terminals, mining and logistics operations in Latin America, Africa and elsewhere. It hires traders and analysts, crude oil schedulers, freight and research analysts, trade finance and treasury staff, IT auditors and AI engineers, and terminal engineers and HSE coordinators in Argentina and Peru.
t-tech.com · HQ: Norcross, United States · Industrial Machinery · PCB Fabrication & Assembly · 51-200 employees · Hiring 2
HQ: Norcross, United States · Industrial Machinery · PCB Fabrication & Assembly · 51-200 employees · Hiring 2
T-Tech is an American manufacturer of printed circuit board prototyping systems. Its Quick Circuit systems let engineers and universities mill and fabricate prototype PCBs in-house, with thousands of systems installed. The company is headquartered in Norcross, Georgia, United States.
claimsorted.com · HQ: London, United Kingdom · Insurance Brokers & Agencies · Health Insurance & Benefits · 51-200 employees · Est. 2024 · Startup · Hiring 16
HQ: London, United Kingdom · Insurance Brokers & Agencies · Health Insurance & Benefits · 51-200 employees · Est. 2024 · Startup · Hiring 16
Turning claims into your advantage. ClaimSorted is a tech-enabled claims TPA delivering faster claims cycles, lower leakage, and five-star policyholder experiences for MGAs and carriers.
harmonic.security · HQ: London, United Kingdom · Information Security · AI Governance & Compliance · Cybersecurity AI · Data Loss Prevention · 51-200 employees · Est. 2023 · Startup · Hiring 9
HQ: London, United Kingdom · Information Security · AI Governance & Compliance · Cybersecurity AI · Data Loss Prevention · 51-200 employees · Est. 2023 · Startup · Hiring 9
Harmonic Security prevents employees from pasting sensitive data into public generative artificial intelligence tools. Founded in 2023 in London, it classifies content with its own models rather than brittle regular expression rules. The product gives security teams visibility into which assistants staff actually use.
lendable.co.uk · HQ: London, United Kingdom · Consumer Loans & Pawnshops · 501-1000 employees · Est. 2014 · Trust A · Hiring 58, 6 new
HQ: London, United Kingdom · Consumer Loans & Pawnshops · 501-1000 employees · Est. 2014 · Trust A · Hiring 58, 6 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.
speechmatics.com · HQ: Cambridge, United Kingdom · Machine Learning · Speech & Audio AI · 201-500 employees · Est. 2006 · Hiring 12
HQ: Cambridge, United Kingdom · Machine Learning · Speech & Audio AI · 201-500 employees · Est. 2006 · Hiring 12
Speechmatics is a British company founded in 2006 that builds speech recognition designed to work across accents and dialects. It trains largely with self-supervised learning on unlabelled audio, which improved accuracy for speakers that mainstream systems transcribe poorly. Its engine is licensed by broadcasters, contact centres and software vendors and runs in the cloud or on-premise.
fifty-five.com · HQ: Paris, France · Digital Marketing · Web Analytics & Tag Management · Marketing Analytics & Attribution · Analytics & BI Consulting · 201-500 employees · Est. 2010 · Trust A · Hiring 28, 5 new
HQ: Paris, France · Digital Marketing · Web Analytics & Tag Management · Marketing Analytics & Attribution · Analytics & BI Consulting · 201-500 employees · Est. 2010 · Trust A · Hiring 28, 5 new
fifty-five is a Paris data company founded in 2010 by former Google employees. It helps brands collect, govern and activate first-party data for measurement and media performance. Part of the You & Mr Jones group, it works from Paris, London, Geneva, Hong Kong, Shanghai, Singapore and New York.
cyberone.security · HQ: London, United Kingdom · Security Operations · Managed Security · 51-200 employees · Est. 2012 · Trust A · Hiring 16
HQ: London, United Kingdom · Security Operations · Managed Security · 51-200 employees · Est. 2012 · Trust A · Hiring 16
CyberOne is a managed security services provider that works as a pure-play Microsoft security partner across Defender XDR, Sentinel, Entra and Purview. Its postings cover incident response analysts, Azure security engineers, data and AI leads and customer and partner success roles in London and Manila. The company is headquartered in London, United Kingdom.
ema.ai · HQ: Mountain View, United States · LLM & Generative AI · AI Agents · 501-1000 employees · Est. 2023 · Startup · Trust B · Hiring 39
HQ: Mountain View, United States · LLM & Generative AI · AI Agents · 501-1000 employees · Est. 2023 · Startup · Trust B · Hiring 39
Ema is an enterprise agentic AI company based in Mountain View, California, that builds a Universal AI Employee platform of AI agents automating routine work in HR, IT, payroll and finance. Founded in California in February 2023 by former Google, Coinbase, Flipkart and Okta executives led by CEO Surojit Chatterjee, it has raised over 90 million US dollars from Accel, Naspers/Prosus, Section32 and others, and has offices in Bengaluru, London and Vancouver. It hires machine learning, full-stack, backend, platform and site reliability engineers, AI strategists, product managers, forward deployed builders, partner managers and sales staff.
netcompany.com · HQ: Copenhagen, Denmark · Custom Software Development · Digital Government · Systems Integrators · 5000+ employees · Est. 1999 · IT services · Trust B · Hiring 131, 15 new
HQ: Copenhagen, Denmark · Custom Software Development · Digital Government · Systems Integrators · 5000+ employees · Est. 1999 · IT services · Trust B · Hiring 131, 15 new
Netcompany is a Danish technology company founded in 1999 that builds and operates large digital systems for public sector bodies and private enterprises across northern Europe. It is best known for delivering national-scale platforms for Danish and other government agencies, including tax, benefits, health and identity systems, and it works on a delivery model where it takes end-to-end responsibility for a solution rather than supplying consultants by the hour. Headquartered in Copenhagen and listed on Nasdaq Copenhagen, it employs several thousand people across Denmark, Norway, the Netherlands, the United Kingdom, Poland and Greece.
rex.inc · HQ: San Francisco, United States · Machine Learning · Financial Software & Embedded Finance · 11-50 employees · Est. 2024 · Startup · Hiring 2
HQ: San Francisco, United States · Machine Learning · Financial Software & Embedded Finance · 11-50 employees · Est. 2024 · Startup · Hiring 2
Rex is an artificial intelligence and enterprise financial technology company specializing in automated order-to-cash (O2C) and accounts receivable operations. Headquartered in San Francisco, California, United States, the platform deploys AI agents that integrate directly with enterprise ERPs, CRMs, and procurement portals to manage invoice collections, remittance processing, cash application, and dispute resolution. By replacing manual administrative workflows with autonomous, auditable task execution, the enterprise enables corporate finance teams to accelerate cash collection, clear operational backlogs, and optimize working capital efficiency.
