Senior Data Scientist

Carwow·Londonsenior

In short

→Científico de datos senior que construye y despliega soluciones de IA/ML de principio a fin en un mercado automotriz digital.
→Trabaja en problemas reales: modelos de precios, recomendaciones personalizadas, procesamiento con LLMs y optimización de marketing.
→Destacado: Ganador del premio 'GenAI Initiative of the Year' en los British Data Awards.

Fluent English required for collaboration across international teams.

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What they ask for

✓Experiencia demostrable en el ciclo completo de ML, desde diseño hasta despliegue en producción.
✓Conocimiento avanzado en modelos de inteligencia artificial generativa (LLMs) y su aplicación práctica.
✓Capacidad para traducir problemas de negocio ambiguos en soluciones técnicas claras y efectivas.
✓Habilidad para colaborar con equipos comerciales, de producto y operativos sin especialización técnica.
✓Experiencia en definir métricas de éxito y validar experimentos con rigor.
✓Contribución activa al desarrollo de buenas prácticas y mentoría de científicos de datos menos experimentados.

Don't tick every box? That's normal — your free dossier shows your gaps and how to cover them in the interview.

PythonSQLML frameworks (e.g., Scikit-leAWS (EC2, S3, Lambda)DockerCI/CD pipelinesMLflowAirflowGitLLMs (e.g., GPT, Llama, etc.)

Who should you write to at Carwow?

Your free dossier identifies the people who'd interview you — their background, what they value, and how to reach out so you stand out before applying.

OUR MISSION To become the car-changing destination of choice. By combining technology, media and deep automotive expertise, we've turned how people buy, sell, advertise and lease cars on its head. What started as a simple reviews site is now one of the largest online car-changing destinations in Europe. Last year alone we grew over 50% with nearly £3bn worth of cars bought on site, while £1.8bn of cars were listed for sale through our Sell My Car service. In 2024 we went big and acquired Autovia - creators of AutoExpress and Evo magazines - doubling our audience overnight. Together we now have one of the biggest YouTube channels in the world with almost 10m subscribers and over 1.1 billion annual views, while we sell 1.2 million print copies of our magazines and have an annual web content reach over 350million. And we’re a long way from done! THE ROLE We're looking for a Senior Data Scientist to join our award-winning Data Science team at a pivotal moment. Carwow operates a two-sided marketplace — connecting car buyers and sellers at scale — and data science sits at the heart of how we make that marketplace smarter, faster, and more valuable for everyone in it. In fact, we recently won GenAI initiative of the Year at the British Data Awards. This is a hands-on, high-ownership role working centrally across the business. You'll partner with teams spanning Commercial, Marketing, Product, Finance, Engineering and Operations — developing and deploying ML and AI solutions that drive outcomes across both sides of our marketplace. The problems you'll work on are genuinely varied: pricing models, propensity and demand signals that sharpen marketing spend, personalised recommendations for our web product and CRM, and LLM-powered solutions for operational challenges like document verification. You'll translate ambiguous business problems into structured, production-ready solutions — and you'll be expected to deliver them end-to-end, from first principles through to being deployment-ready and beyond. WHAT YOU'LL BE DOING End-to-End ML & AI Delivery: Lead data science initiatives from problem framing through to deployment, monitoring, and iteration — delivering the full production lifecycle. With no dedicated ML engineering function, you'll be responsible for ensuring your solutions are robust, scalable, and performing in the real world long after they ship. GenAI & LLM Application: Design and build LLM-powered solutions where they create genuine business value — document processing, intelligent search, content understanding, and beyond. Apply them alongside classical ML with clear judgement about where each approach earns its place. Commercial Impact: Connect your work directly to business outcomes. Whether you're building a model to improve marketing efficiency, a pricing signal to sharpen commercial decisions, or a recommendation engine to increase conversion — you understand the business lever you're pulling and design your solutions accordingly. Prototyping & Experimentation: Move fast to test ideas before committing to full-scale development. Define rigorous success metrics upfront, validate honestly, and know when to double down and when to walk away. Cross-Functional Partnership: Work closely with Commercial, Marketing, Product, Finance, Engineering and Operations stakeholders to understand problems deeply before reaching for a solution. Translate findings into clear, actionable narratives for both technical and non-technical audiences. Standards & Craft: Contribute to shared best practices, documentation, and ways of working that raise the bar for the data science function — and help more junior team members grow alongside you. Drive continued adoption of AI capabilities to drive efficiencies, automation and constantly leverage new capabilities.

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