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.
prolific.com · HQ: London, United Kingdom · AI Research Labs · LLM & Generative AI · Artificial Intelligence · Market Research · AI Training Data & Annotation · 51-200 employees · Est. 2014 · Startup · Trust B · Hiring 28, 3 new
HQ: London, United Kingdom · AI Research Labs · LLM & Generative AI · Artificial Intelligence · Market Research · AI Training Data & Annotation · 51-200 employees · Est. 2014 · Startup · Trust B · Hiring 28, 3 new
Prolific is a British research technology company founded in 2014 by Oxford researchers that connects scientists, businesses and AI developers with a vetted pool of paid human participants. Its platform handles recruitment, demographic targeting, fair-pay enforcement, fraud screening and payment so studies return usable data instead of bot or duplicate responses. Originally built for academic behavioural research, the company now also supplies human feedback, preference data and evaluation for machine learning teams, and is headquartered in London with a large United States presence.
novogaia.bio · HQ: London, United Kingdom · Drug Discovery AI · Drug Discovery · Est. 2024 · Startup · Hiring 1
HQ: London, United Kingdom · Drug Discovery AI · Drug Discovery · Est. 2024 · Startup · Hiring 1
Novogaia is an applied AI drug discovery company that builds machine learning systems to decode the chemistry of natural organisms, starting with fungi. Its small team of AI engineers, computational biologists and chemists develops foundation models for molecular structure prediction from mass spectrometry data. The company is headquartered in London, United Kingdom.
goodfire.com · HQ: San Francisco, United States · Explainable AI (XAI) · AI Safety & Alignment · AI Research Labs · 201-500 employees · Est. 2023 · Startup · Trust D · Hiring 25
HQ: San Francisco, United States · Explainable AI (XAI) · AI Safety & Alignment · AI Research Labs · 201-500 employees · Est. 2023 · Startup · Trust D · Hiring 25
Goodfire is an artificial intelligence research company focused on mechanistic interpretability, building tools and methods to understand and edit the internal representations of neural networks. Founded in 2023, it develops the Ember interpretability platform, publishes research on model internals and partners with AI developers and scientific organisations to make models more reliable and safe. The company is headquartered in San Francisco, California, United States.
fintricity.com · HQ: London, United Kingdom · AI Consulting & Integration · AI Agents · 11-50 employees · Est. 2001 · Hiring 1
HQ: London, United Kingdom · AI Consulting & Integration · AI Agents · 11-50 employees · Est. 2001 · Hiring 1
Fintricity is an AI-first consulting and technology firm that helps enterprises change how they use data, artificial intelligence and digital platforms. It works with organisations to move from strategy to production-ready solutions and offers platforms to build, deploy and govern autonomous AI agents. The firm is headquartered in London, United Kingdom.
telefonicatech.com · HQ: Madrid, Spain · 501-1000 employees · Est. 2019 · Trust B · Hiring 41, 9 new
HQ: Madrid, Spain · 501-1000 employees · Est. 2019 · Trust B · Hiring 41, 9 new
Telefónica Tech is the digital business unit created by Telefónica in 2019 to group its cybersecurity, cloud, internet of things and data services. It integrates and operates enterprise technology for large corporations and public bodies across Europe and Latin America. The unit employs several thousand specialists and runs a network of security operations centres.
physicsx.ai · HQ: London, United Kingdom · AI for Science · Simulation & Digital Twin Software · Industrial AI · 201-500 employees · Est. 2019 · Startup · Trust A · Hiring 37, 1 new
HQ: London, United Kingdom · AI for Science · Simulation & Digital Twin Software · Industrial AI · 201-500 employees · Est. 2019 · Startup · Trust A · Hiring 37, 1 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.
lovable.dev · HQ: Stockholm, Sweden · HQ: Unterschleißheim, Germany · Low-Code & No-Code Platforms · AI Development Tools · 501-1000 employees · Est. 2023 · Startup · Trust A · Hiring 77, 4 new
HQ: Stockholm, Sweden · HQ: Unterschleißheim, Germany · Low-Code & No-Code Platforms · AI Development Tools · 501-1000 employees · Est. 2023 · Startup · Trust A · Hiring 77, 4 new
Lovable is an AI-powered software development platform headquartered in Stockholm, Sweden. Founded in 2023 by Anton Osika and Fabian Hedin, the company operates a conversational "vibe coding" environment that enables both non-technical creators and software engineers to build, iterate, and deploy full-stack web applications using natural language prompts. Lovable automates front-end UI generation, back-end code creation, database connections, and GitHub workflow syncing, allowing users to move rapidly from product idea to production-ready application.
aiosmedical.com · HQ: San Francisco, United States · Consumer Health Apps · Est. 2020 · Startup · Trust B · Hiring 10
HQ: San Francisco, United States · Consumer Health Apps · Est. 2020 · Startup · Trust B · Hiring 10
AIOS builds an AI operating system for consumer healthcare that delivers care end to end with minimal human time per patient. Its stack handles intake, clinical decision support and follow-up so a small clinical team can supervise a large panel. The company targets high-volume, protocol-driven care where most work is repetitive.
≈ $164k – $309k per year (Estimated) · Lead · 8+ years exp · Austin · San Francisco · London · New York · Remote (United States, United Kingdom, PT hours) · Bachelor's Degree · Full-Time · Staff
se.com · HQ: Rueil-Malmaison, France · Electrical Equipment & Cables · Industrial Automation · Energy Management · 5000+ employees · Est. 1836 · Trust B · Hiring 2275, 228 new
HQ: Rueil-Malmaison, France · Electrical Equipment & Cables · Industrial Automation · Energy Management · 5000+ employees · Est. 1836 · Trust B · Hiring 2275, 228 new
Headquartered in Rueil-Malmaison, France, Schneider Electric is a global leader in energy management and industrial automation. The company offers an extensive portfolio of connected hardware, software, and services designed to optimize efficiency across homes, buildings, data centers, and industrial infrastructure. Through digital transformation and smart grid technologies, the organization helps businesses and consumers achieve sustainable, reliable, and energy-efficient operations worldwide.
darktrace.com · HQ: Cambridge, United Kingdom · Email Security · Network Security · Security Operations · Cybersecurity AI · 1001-5000 employees · Est. 2013 · Trust B · Hiring 68, 10 new
HQ: Cambridge, United Kingdom · Email Security · Network Security · Security Operations · Cybersecurity AI · 1001-5000 employees · Est. 2013 · Trust B · Hiring 68, 10 new
Darktrace is a British cybersecurity company founded in Cambridge in 2013 by mathematicians and former government intelligence staff, built on the idea that a network can be defended by learning its own normal behaviour rather than matching known attack signatures. Its Self-Learning AI builds a live model of how each user, device and workload usually behaves, flags deviations that no signature would catch, and can act autonomously to contain an intrusion in progress. The company listed in London in 2021 and was taken private by Thoma Bravo in 2024 for around five billion dollars, and it protects networks, email, cloud and operational technology for thousands of organisations.
sonarsource.com · HQ: Geneva, Switzerland · Software Testing & QA · Application Security · Developer Tools · 1001-5000 employees · Est. 2008 · Trust A · Hiring 112, 8 new
HQ: Geneva, Switzerland · Software Testing & QA · Application Security · Developer Tools · 1001-5000 employees · Est. 2008 · Trust A · Hiring 112, 8 new
SonarSource is a leading provider of continuous code quality and security solutions designed to help developers write clean, reliable software. Through its core product portfolio - including SonarQube, SonarCloud, and SonarLint - the company automatically detects bugs, security vulnerabilities, and code maintainability issues across more than 30 programming languages. By integrating directly into IDEs and CI/CD development pipelines, its platform provides real-time feedback that prevents technical debt and strengthens software security before code reaches production.
aveva.com · HQ: Cambridge, United Kingdom · Simulation & Digital Twin Software · CAD, PLM & BIM Software · Manufacturing & Industrial Software · 5000+ employees · Est. 1967 · Trust A · Hiring 214, 26 new
HQ: Cambridge, United Kingdom · Simulation & Digital Twin Software · CAD, PLM & BIM Software · Manufacturing & Industrial Software · 5000+ employees · Est. 1967 · Trust A · Hiring 214, 26 new
AVEVA is a British industrial software company whose origins lie in a 1967 government computer-aided design research centre in Cambridge, and which now supplies the engineering and operations software heavy industry runs on. Its products cover plant design and simulation, asset performance management, manufacturing execution and the PI System, the historian that stores time-series data from industrial equipment across most large process plants in the world. Headquartered in Cambridge and wholly owned by Schneider Electric since 2023, it sells mainly to oil and gas, chemicals, power, mining, marine and infrastructure operators.
jetbrains.com · HQ: Prague, Czech Republic · Project & Work Management Software · Developer Tools · 1001-5000 employees · Est. 2000 · Trust A · Hiring 44, 2 new
HQ: Prague, Czech Republic · Project & Work Management Software · Developer Tools · 1001-5000 employees · Est. 2000 · Trust A · Hiring 44, 2 new
JetBrains is a software company founded in 2000 that builds integrated development environments and team tools for professional programmers. Its IDE family covers most major languages, including IntelliJ IDEA for the Java virtual machine, PyCharm, WebStorm, GoLand, CLion and Rider, all sharing a code-intelligence engine that gave the company its reputation for refactoring and static analysis. Headquartered in Prague with development offices across Europe, it also created the Kotlin programming language, now Google's preferred language for Android, and ships team products such as TeamCity, YouTrack and its AI coding assistants.
janestreet.com · HQ: New York, United States · Hedge Funds & Alternative Investments · 1001-5000 employees · Est. 2000 · Trust B · Hiring 170, 1 new
HQ: New York, United States · Hedge Funds & Alternative Investments · 1001-5000 employees · Est. 2000 · Trust B · Hiring 170, 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.
waymo.com · HQ: Mountain View, United States · Ride Hailing · Smart Mobility · Autonomous Driving · 5000+ employees · Est. 2009 · Trust B · Hiring 363, 19 new
HQ: Mountain View, United States · Ride Hailing · Smart Mobility · Autonomous Driving · 5000+ employees · Est. 2009 · Trust B · Hiring 363, 19 new
Waymo is an American autonomous driving company that began as the Google self-driving car project in 2009 and became a standalone Alphabet subsidiary in 2016. It operates the largest fully driverless commercial ride-hailing service in the world through the Waymo One app, carrying paying passengers with no human in the vehicle across Phoenix, San Francisco, Los Angeles, Austin and an expanding list of cities. Headquartered in Mountain View, California, the company builds its own sensor suite and the Waymo Driver software stack, integrates them into vehicles from partners such as Jaguar, Zeekr and Hyundai, and also develops autonomous trucking technology.
scale.com · HQ: San Francisco, United States · LLM & Generative AI · AI Evaluation & Observability · AI Training Data & Annotation · 1001-5000 employees · Est. 2016 · Trust B · Hiring 159, 5 new
HQ: San Francisco, United States · LLM & Generative AI · AI Evaluation & Observability · AI Training Data & Annotation · 1001-5000 employees · Est. 2016 · Trust B · Hiring 159, 5 new
Scale AI is an American company founded in San Francisco in 2016 that supplies the training data, evaluation and tooling behind large artificial intelligence systems. It began with human-labelled annotation for autonomous driving and computer vision, then expanded into reinforcement learning from human feedback, expert data generation, model evaluation and full-stack deployment platforms for enterprises and governments. In 2025 Meta acquired a large minority stake and hired co-founder Alexandr Wang, after which the company continued under new leadership serving defence, public sector and commercial customers.
helsing.ai · HQ: Munich, Germany · Military Drones · National Security · Defense AI · 1001-5000 employees · Est. 2021 · Trust B · Hiring 150, 6 new
HQ: Munich, Germany · Military Drones · National Security · Defense AI · 1001-5000 employees · Est. 2021 · Trust B · Hiring 150, 6 new
Helsing is a European defence technology company headquartered in Munich, Germany, that develops artificial intelligence software for military platforms and builds its own systems, including strike drones and uncrewed aircraft, for armed forces of democratic states. Founded in 2021, it has grown into one of the most heavily funded defence start-ups in Europe and operates offices in Berlin, London, Paris, Stockholm, Barcelona and Washington. It recruits systems, test, flight dynamics, manufacturing and quality engineers for weapon integration and armament control work, along with procurement, logistics, legal, payroll and supply chain staff.
≈ $103k – $226k per year (Estimated) · Staff+ · Berlin · London · Munich · Paris · Remote (Germany, France, United Kingdom) · Relocation · Master's Degree · Staff
exlservice.com · HQ: New York, United States · AI Consulting & Integration · Analytics & BI Consulting · Business Process Outsourcing (BPO) · 5000+ employees · Est. 1999 · Trust B · Hiring 644, 24 new
HQ: New York, United States · AI Consulting & Integration · Analytics & BI Consulting · Business Process Outsourcing (BPO) · 5000+ employees · Est. 1999 · Trust B · Hiring 644, 24 new
EXL, legally ExlService Holdings, is a data analytics, AI and digital operations company headquartered in New York that runs outsourced business processes and builds data and AI solutions for insurers, healthcare organisations, banks, media and retail companies. Founded in 1999 and listed on Nasdaq, it has more than 60,000 employees across six continents, with large delivery centers in Noida, Gurgaon, Pune, Bengaluru and Chennai and a newer AI hub in Dublin. It hires data scientists and data engineers, GenAI and MLOps engineers, analytics managers, solution consultants and client partners, plus talent acquisition, finance and medical coding staff.
libertyglobal.com · HQ: London, United Kingdom · Mobile Networks · Broadband · 201-500 employees · Trust A · Hiring 13, 1 new
HQ: London, United Kingdom · Mobile Networks · Broadband · 201-500 employees · Trust A · Hiring 13, 1 new
Liberty Global is an international telecommunications and media company that owns broadband and mobile network businesses in Europe. Its job ads cover finance internships, corporate tax strategy, AI architecture, technical project management and executive support. The company is headquartered in London, United Kingdom.
