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.
checkout.com · HQ: London, United Kingdom · Payment Processing & Gateways · 1001-5000 employees · Est. 2012 · Trust A · Hiring 128, 17 new
HQ: London, United Kingdom · Payment Processing & Gateways · 1001-5000 employees · Est. 2012 · Trust A · Hiring 128, 17 new
Checkout.com is a British payments company founded in 2012 that processes card and alternative payments for large digital merchants, and it competes by building its own connections to schemes and acquirers rather than reselling another processor's infrastructure. That vertical integration is the basis of its pitch on authorisation rates: a payment that fails for a technical reason is lost revenue, and controlling the whole path lets it retry and route more intelligently. Headquartered in London, it works with merchants including Netflix, Sony and eBay, and it has expanded into stablecoin settlement alongside conventional card processing.
turingcollege.com · HQ: Vilnius, Lithuania · Bootcamps · E-learning · 51-200 employees · Est. 2020 · Startup · Hiring 1
HQ: Vilnius, Lithuania · Bootcamps · E-learning · 51-200 employees · Est. 2020 · Startup · Hiring 1
Join Turing College for top online courses designed for busy professionals. Learn in-demand skills in programming, marketing, and data to advance your career!
vodafone.com · HQ: Newbury, United Kingdom · IoT Connectivity · Broadband · Mobile Networks · 1001-5000 employees · Est. 1991 · Trust C · Hiring 885, 53 new
HQ: Newbury, United Kingdom · IoT Connectivity · Broadband · Mobile Networks · 1001-5000 employees · Est. 1991 · Trust C · Hiring 885, 53 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.
aircall.io · HQ: Paris, France · Unified Communications · Contact Center Software · 201-500 employees · Est. 2014 · Trust A · Hiring 84, 9 new
HQ: Paris, France · Unified Communications · Contact Center Software · 201-500 employees · Est. 2014 · Trust A · Hiring 84, 9 new
Aircall is a Paris company founded in 2014 that provides a cloud telephony and call centre platform for small and mid-sized businesses. Its product integrates deeply with customer relationship and helpdesk tools such as Salesforce, HubSpot and Zendesk. The company became a unicorn in 2021 and has offices in Paris, New York, Sydney and Madrid.
HQ: Maidstone, United Kingdom · Commerce · Cybersecurity · Fraud Detection · 11-50 employees · Est. 2024 · Hiring 5
Fraud prevention and payment solutions that adapt to your challenges, risk appetite & goals so you can combat the fraud of today and be ready for tomorrow.
tripleten.com · HQ: Boston, United States · IT Training & Certification · Bootcamps · Est. 2019 · Trust A · Hiring 234, 20 new
HQ: Boston, United States · IT Training & Certification · Bootcamps · Est. 2019 · Trust A · Hiring 234, 20 new
TripleTen is an online technology bootcamp founded in 2019 that trains career changers for entry-level roles in software engineering, data analysis, quality assurance, cybersecurity and business intelligence. Its programmes are part-time and remote, built around project work and human code review rather than recorded lectures, and it advertises an employment guarantee that refunds tuition if a graduate does not find work within a defined period. Headquartered in Boston, it operates in the United States and Latin America and grew out of the education business originally built inside Yandex.
neo4j.com · HQ: San Mateo, United States · Knowledge Graphs · Databases & DBMS · Est. 2007 · Trust A · Hiring 56, 9 new
HQ: San Mateo, United States · Knowledge Graphs · Databases & DBMS · Est. 2007 · Trust A · Hiring 56, 9 new
Neo4j is the world's leading graph database platform, engineered specifically to store, query, and analyze highly connected data. Unlike traditional relational databases that rely on rigid tables and costly JOIN operations, Neo4j models data naturally using nodes (entities), relationships (connections), and properties (key-value attributes).
kraken.tech · HQ: London, United Kingdom · Custom Software Development · Energy Management · 11-50 employees · Est. 2016 · Trust A · Hiring 56, 5 new
HQ: London, United Kingdom · Custom Software Development · Energy Management · 11-50 employees · Est. 2016 · Trust A · Hiring 56, 5 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.
worldpay.com · HQ: Cincinnati, United States · Payment Processing & Gateways · 1001-5000 employees · Est. 1971 · Trust B · Hiring 22
HQ: Cincinnati, United States · Payment Processing & Gateways · 1001-5000 employees · Est. 1971 · Trust B · Hiring 22
Worldpay is one of the largest merchant acquirers in the world, processing card and alternative payments for merchants across ecommerce, retail, restaurants and enterprise. Its history runs through NatWest, Royal Bank of Scotland, Vantiv and FIS, and it was separated from FIS in 2024 under GTCR ownership before agreeing to combine with Global Payments in 2025. Headquartered in Cincinnati with major operations in London, it handles payments in more than one hundred and forty currencies and competes with Stripe, Adyen and the bank-owned acquirers for large international merchants.
harmonic.fun · HQ: Palo Alto, United States · AI for Science · Est. 2023 · Startup · Trust B · Hiring 8
HQ: Palo Alto, United States · AI for Science · Est. 2023 · Startup · Trust B · Hiring 8
Harmonic is a research laboratory building mathematical superintelligence with verifiable reasoning at its core. Its Aristotle system generates proofs in the Lean formal language so that every claim it makes can be checked mechanically rather than trusted, an approach aimed directly at eliminating hallucination in reasoning. The company was co-founded by the Robinhood founder Vlad Tenev and reached gold medal level performance on international mathematical olympiad problems; its long term aim is a system whose mathematical output requires no human verification.
moonpay.com · HQ: Miami, United States · Crypto Wallets · Crypto Payments · Cryptocurrencies · Est. 2019 · Startup · Trust A · Hiring 21, 1 new
HQ: Miami, United States · Crypto Wallets · Crypto Payments · Cryptocurrencies · Est. 2019 · Startup · Trust A · Hiring 21, 1 new
MoonPay is a cryptocurrency payments company headquartered in Miami, Florida, and founded in 2019. The company operates an on and off ramp that lets people buy and sell digital assets with cards and bank transfers, and supplies wallet, NFT checkout, and compliance infrastructure to other crypto businesses. It is integrated into hundreds of wallets and exchanges and holds money transmission and virtual asset licenses across the United States and Europe.
legora.com · HQ: Stockholm, Sweden · Legal Software · Document AI · Legal AI · 1001-5000 employees · Est. 2023 · Trust A · Hiring 303, 13 new
HQ: Stockholm, Sweden · Legal Software · Document AI · Legal AI · 1001-5000 employees · Est. 2023 · Trust A · Hiring 303, 13 new
Legora is a Swedish company founded in 2023 that builds artificial intelligence tools for lawyers, and it has grown unusually fast for a European enterprise software company in a market dominated by American incumbents. Its products handle document review, drafting, research and diligence inside the environments lawyers already work in, and it is designed for collaborative use so that a partner can see and correct what the system produced rather than receiving an opaque answer. Headquartered in Stockholm and valued in the billions within two years, it works with international law firms and in-house legal teams across Europe and the United States.
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.
cohere.com · HQ: Toronto, Canada · LLM & Generative AI · Foundation Models · AI Agents · 1001-5000 employees · Est. 2019 · Trust A · Hiring 115, 10 new
HQ: Toronto, Canada · LLM & Generative AI · Foundation Models · AI Agents · 1001-5000 employees · Est. 2019 · Trust A · Hiring 115, 10 new
Cohere is a Canadian artificial intelligence company founded in Toronto in 2019 by researchers including one of the co-authors of the transformer architecture paper. It builds large language models aimed specifically at enterprise use rather than consumer chat, with a product line covering text generation, embeddings, reranking and an agent platform, and it emphasises private deployment inside a customer's own cloud or data centre for regulated industries. The company has raised substantial funding from technology and industrial investors, and partners with cloud providers and system integrators to reach banking, healthcare and public sector customers.
predictleads.com · HQ: Ljubljana, Slovenia · Lead Generation · B2B Company & Contact Data · 51-200 employees · Est. 2016 · Hiring 3
HQ: Ljubljana, Slovenia · Lead Generation · B2B Company & Contact Data · 51-200 employees · Est. 2016 · Hiring 3
PredictLeads extracts business event signals such as hiring, partnerships and funding from company websites and news. Founded in 2016 in Slovenia, it supplies structured trigger data to sales intelligence platforms. Its crawlers monitor millions of company sites continuously.
coreweave.com · HQ: Livingston, United States · Data Centers & Colocation · Cloud Platforms (IaaS & PaaS) · AI Compute & Inference · 1001-5000 employees · Est. 2017 · NASDAQ: CRWV · Trust B · Hiring 288, 6 new
HQ: Livingston, United States · Data Centers & Colocation · Cloud Platforms (IaaS & PaaS) · AI Compute & Inference · 1001-5000 employees · Est. 2017 · NASDAQ: CRWV · Trust B · Hiring 288, 6 new
Headquartered in Livingston, New Jersey, CoreWeave is a specialized artificial intelligence cloud computing enterprise providing high-performance GPU infrastructure. The company operates a global network of cloud data centers optimized for compute-intensive workloads, including large language model (LLM) training, generative AI inference, high-performance computing (HPC), and visual effects rendering. By deploying large-scale NVIDIA GPU clusters with Kubernetes-native software architecture, it delivers bare-metal compute acceleration and scalable infrastructure for AI research labs, tech enterprises, and digital developers worldwide.
ripple.com · HQ: San Francisco, United States · Financial Software & Embedded Finance · Blockchain Infrastructure · Stablecoins · Crypto Payments · 1001-5000 employees · Est. 2012 · Trust A · Hiring 100, 16 new
HQ: San Francisco, United States · Financial Software & Embedded Finance · Blockchain Infrastructure · Stablecoins · Crypto Payments · 1001-5000 employees · Est. 2012 · Trust A · Hiring 100, 16 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.
elyos.ai · HQ: London, United Kingdom · AI Agents · Field Service Management Software · Conversational AI · 201-500 employees · Startup · Trust B · Hiring 9
HQ: London, United Kingdom · AI Agents · Field Service Management Software · Conversational AI · 201-500 employees · Startup · Trust B · Hiring 9
Elyos AI builds AI voice agents for trade and field service businesses. Its agents answer customer calls, book jobs and confirm appointments, and integrate with field service platforms including Simpro, ServiceTitan and Joblogic, so contractors can handle more demand without hiring extra office staff. The company is headquartered in London, United Kingdom, and also sells in the United States.
