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.
smartassets.ai • London • Barcelona • Marketing Analytics & Attribution • Marketing & Sales AI • 51-200 employees • Likely startup • Trust B • Hiring 3
London • Barcelona • Marketing Analytics & Attribution • Marketing & Sales AI • 51-200 employees • Likely startup • Trust B • Hiring 3
Powered by AI, the platform tags assets at creative-component level, predicts campaign performance pre-spend, and fine-tunes ad creatives for maximum impact.
condukt.co • HQ: London, United Kingdom • AI Agents • RegTech, AML & Compliance • 1-10 employees • Est. 2023 • Startup • Trust B • Hiring 4
HQ: London, United Kingdom • AI Agents • RegTech, AML & Compliance • 1-10 employees • Est. 2023 • Startup • Trust B • Hiring 4
Condukt is a compliance platform for financial services that offers an agentic solution powered by real-time data for business identity and verification. It helps financial institutions and fintechs gain insight, increase efficiency and strengthen compliance, and it hires engineers and sales staff in London and Porto. The company is headquartered in London, United Kingdom.
plain.com • HQ: London, United Kingdom • AI Agents • 1-10 employees • Est. 2020 • Startup • Trust B • Hiring 4
HQ: London, United Kingdom • AI Agents • 1-10 employees • Est. 2020 • Startup • Trust B • Hiring 4
Plain is the AI support stack built for B2B teams. Composable infrastructure that gives you complete flexibility to build a support motion that grows with your business — no-code or all-code.
aalyria.com • HQ: Livermore, United States • Telecom Infrastructure • 201-500 employees • Startup • Trust A • Hiring 35
HQ: Livermore, United States • Telecom Infrastructure • 201-500 employees • Startup • Trust A • Hiring 35
Aalyria is a US technology company headquartered in Livermore, California that supplies laser communications hardware and software-defined networking platforms for networks in motion across land, sea, air and space. Built on technology acquired from Google, its Spacetime platform orchestrates satellite, airborne and terrestrial mesh networks and its Tightbeam product provides free-space optical links for commercial and government customers. It hires software engineers for backend, infrastructure, simulation and optimization systems, research scientists and related technical staff in California, Washington and London.
clarity.agency • HQ: London, United Kingdom • Customer Support & Help Desk Software • Conversational AI • Likely startup • Trust B • Hiring 4
HQ: London, United Kingdom • Customer Support & Help Desk Software • Conversational AI • Likely startup • Trust B • Hiring 4
Clarity is a software company that uses artificial intelligence to help customer service teams handle interactions faster and with more personalised experiences. Its job ads cover full-stack web development with React, FastAPI and Elasticsearch, generative AI engineering, data engineering and product management. The company is headquartered in London, United Kingdom.
fogsphere.com • HQ: London, United Kingdom • Occupational Health • 51-200 employees • Est. 2021 • Likely startup • Trust B • Hiring 8
HQ: London, United Kingdom • Occupational Health • 51-200 employees • Est. 2021 • Likely startup • Trust B • Hiring 8
Fogsphere is a Workplace Safety monitoring platform meant to reduce the risks exposure of your workers through active monitoring of workplace and behaviours.
eloquentai.co • HQ: San Francisco, United States • AI Agents • Information Security • Artificial Intelligence • 201-500 employees • Est. 2025 • Startup • Trust D • Hiring 13
HQ: San Francisco, United States • AI Agents • Information Security • Artificial Intelligence • 201-500 employees • Est. 2025 • Startup • Trust D • Hiring 13
InfoSec teams are right to be cautious about AI automation in regulated environments. Many AI systems prioritize speed over access control, explainability, and auditability, creating unacceptable risk.
cognition.ai • HQ: San Francisco, United States • AI Development Tools • AI Agents • Code Intelligence • 501-1000 employees • Est. 2023 • Startup • Trust B • Hiring 98, 1 new
HQ: San Francisco, United States • AI Development Tools • AI Agents • Code Intelligence • 501-1000 employees • Est. 2023 • Startup • Trust B • Hiring 98, 1 new
Cognition is an applied artificial intelligence lab founded in 2023 that created Devin, an autonomous software engineering agent able to plan, write and debug code across a full repository. The company drew attention for demonstrating long-horizon coding work rather than single-file completion, and it sells Devin to engineering organisations. In 2025 it acquired the Windsurf coding assistant team and product, broadening its developer tooling.
pear.vc • HQ: San Francisco, United States • Venture Capital • 51-200 employees • Est. 2013 • Trust A • Hiring 100, 6 new
HQ: San Francisco, United States • Venture Capital • 51-200 employees • Est. 2013 • Trust A • Hiring 100, 6 new
Pear VC is a venture capital firm specializing in pre-seed and seed-stage investments in startups. Founded by Pejman Nozad and Mar Hershenson, the firm provides hands-on support in areas such as product development, recruiting, fundraising, and go-to-market strategy. Pear has backed companies including DoorDash, Gusto, Aurora Solar, Vanta, and Guardant Health.
cartesia.ai • HQ: San Francisco, United States • AI Research Labs • Generative Audio & Music • Foundation Models • Speech & Audio AI • 201-500 employees • Est. 2022 • Startup • Trust A • Hiring 23, 2 new
HQ: San Francisco, United States • AI Research Labs • Generative Audio & Music • Foundation Models • Speech & Audio AI • 201-500 employees • Est. 2022 • Startup • Trust A • Hiring 23, 2 new
Cartesia is an artificial intelligence research and technology company that builds real-time, low-latency generative voice models for interactive applications. Founded by Stanford researchers, the company utilizes State Space Models (SSMs) to power its flagship text-to-speech platform, Sonic, which enables sub-second voice synthesis, instant voice cloning, and emotional expression across dozens of languages. By providing real-time speech generation and voice agent infrastructure, Cartesia allows developers and enterprises to power conversational AI systems, virtual assistants, and customer service platforms.
recraft.ai • HQ: London, United Kingdom • Generative Image • 51-200 employees • Est. 2022 • Startup • Hiring 4
HQ: London, United Kingdom • Generative Image • 51-200 employees • Est. 2022 • Startup • Hiring 4
Recraft is a company founded in 2022 that builds a generative image model and design tool aimed at professional designers. Its models produce vector art, icons and consistent brand styles, and the editor allows precise control over layout and text rather than one-shot prompting. It topped independent image model rankings and is used by design and marketing teams.
watershed.com • HQ: San Francisco, United States • ESG & Carbon Accounting Software • 201-500 employees • Est. 2019 • Startup • Trust B • Hiring 31, 3 new
HQ: San Francisco, United States • ESG & Carbon Accounting Software • 201-500 employees • Est. 2019 • Startup • Trust B • Hiring 31, 3 new
Watershed is a climate software company founded in 2019 that helps enterprises measure, report and reduce their carbon emissions. Its platform collects activity data across operations and supply chains, produces audit-ready greenhouse gas inventories for disclosure regimes such as CSRD and ISSB, and supports decarbonisation and supplier engagement programmes for large global brands. The company is headquartered in San Francisco, California, United States.
junior.ai • HQ: New York, United States • Knowledge Graphs • 51-200 employees • Startup • Trust A • Hiring 8
HQ: New York, United States • Knowledge Graphs • 51-200 employees • Startup • Trust A • Hiring 8
Junior AI is an artificial intelligence startup that develops specialized AI-powered coding and workflow tools designed to assist engineering teams. The platform automates repetitive software development tasks, such as code generation, bug fixing, and pull request reviews, acting as a virtual junior developer for product teams. By accelerating routine engineering workflows, it enables human developers to focus on higher-level system architecture and strategic problem-solving.
MONY Group is a UK price comparison group that operates MoneySuperMarket, MoneySavingExpert and Quidco. Its brands supply products to more than 24 million unique monthly visitors, and the company hires for product, commercial, finance, CRM and press roles. The company is headquartered in London, United Kingdom.
figma.com • HQ: San Francisco, United States • Design & Prototyping Tools • Digital Design • 1001-5000 employees • Est. 2012 • NYSE: FIG • Trust B • Hiring 131, 13 new
HQ: San Francisco, United States • Design & Prototyping Tools • Digital Design • 1001-5000 employees • Est. 2012 • NYSE: FIG • Trust B • Hiring 131, 13 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.
ansatzcapital.com • HQ: New York, United States • Hedge Funds & Alternative Investments • 11-50 employees • Est. 2013 • Trust B • Hiring 4
HQ: New York, United States • Hedge Funds & Alternative Investments • 11-50 employees • Est. 2013 • Trust B • Hiring 4
Ansatz Capital is an investment firm with a deeply technical culture, running a Linux-based C++20 and Python research infrastructure in the cloud where everyone programs. Its engineers work on performance engineering and low-latency networking, and it hires software and research engineers in New York and London. The firm is based in New York, United States.
granola.ai • HQ: London, United Kingdom • LLM & Generative AI • Office & Productivity Software • 201-500 employees • Est. 2023 • Startup • Trust C • Hiring 22, 1 new
HQ: London, United Kingdom • LLM & Generative AI • Office & Productivity Software • 201-500 employees • Est. 2023 • Startup • Trust C • Hiring 22, 1 new
Granola is a software company that makes an AI notepad for meetings, which transcribes calls without a bot joining and combines the transcript with the user's own notes into structured summaries. It has grown into a shared team workspace used by companies such as Vercel, Cursor, Lovable and Decagon, and it hires tech ops, sales development, design engineering and strategic finance staff in London and San Francisco. The company is headquartered in London, England, United Kingdom.
squarepoint-capital.com • HQ: London, United Kingdom • Asset Management & Funds • Hedge Funds & Alternative Investments • 1001-5000 employees • Est. 2014 • Trust C • Hiring 74, 1 new
HQ: London, United Kingdom • Asset Management & Funds • Hedge Funds & Alternative Investments • 1001-5000 employees • Est. 2014 • Trust C • Hiring 74, 1 new
Squarepoint Capital is a global quantitative investment manager that runs systematic trading strategies across equities, fixed income, foreign exchange, commodities and derivatives, built on in-house research, execution and portfolio management technology. Founded in 2014 as a spin-out of the quantitative trading business of Deutsche Bank, it operates offices in North America, Europe and Asia-Pacific, including New York, Montreal, Singapore, Bengaluru and Geneva. The firm is headquartered in London, England, United Kingdom.
palantir.com • HQ: Denver, United States • Defense AI • Data Integration & ETL Tools • Decision Intelligence • 1001-5000 employees • Est. 2003 • NASDAQ: PLTR • Trust C • Hiring 235, 7 new
HQ: Denver, United States • Defense AI • Data Integration & ETL Tools • Decision Intelligence • 1001-5000 employees • Est. 2003 • NASDAQ: PLTR • Trust C • Hiring 235, 7 new
Palantir Technologies is an American software company founded in 2003 that builds platforms for integrating, analysing and acting on large and fragmented datasets. Its Gotham platform serves defence, intelligence and law enforcement customers, Foundry brings the same data-operating model to commercial industries such as manufacturing, healthcare and energy, and the Artificial Intelligence Platform layers large language models over both. Headquartered in Denver, Colorado and listed on the New York Stock Exchange since 2020, the company is known for deploying forward engineers directly inside customer organisations.
worldquant.com • HQ: Old Greenwich, United States • Hedge Funds & Alternative Investments • 1001-5000 employees • Est. 2007 • Trust B • Hiring 84
HQ: Old Greenwich, United States • Hedge Funds & Alternative Investments • 1001-5000 employees • Est. 2007 • Trust B • Hiring 84
Headquartered in Old Greenwich, Connecticut, WorldQuant is a global quantitative investment management firm and hedge fund. The company develops and deploys systematic trading strategies, predictive algorithmic signals ("alphas"), and data-driven portfolio management models across global equity and financial markets. By combining advanced machine learning, massive financial datasets, and a distributed international network of quantitative researchers, it systematically identifies market inefficiencies to generate consistent, risk-adjusted investment returns.
