Join us as a Data Scientist
Want to do work that really matters?
At Checkatrade, we’re building the UK’s go-to home improvement marketplace. Every day, we help millions of homeowners find the right tradesperson for the job, fast, fair, and without the faff.
AI and data are at the core of that mission. We believe intelligence should drive every decision, workflow, and customer experience — helping trades win more work and homeowners get the right match, faster. We’re building an AI-powered Checkatrade where models, insights, and automation create real-world impact at scale.
As our next Data Scientist, based in Barcelona, you’ll join our Marketplace Team — the engine room where data meets behaviour. You’ll design intelligent systems that make our two-sided marketplace smarter and fairer: better search, faster matching, and more dynamic pricing. This isn’t about isolated modelling — it’s about shipping production-ready intelligence that directly shapes how millions of people find, choose, and hire trusted trades.
Forget long lists, here’s what you’ll actually spend your time on:
Experimenting with LLM-based and retrieval-augmented models (RAG) to improve matching, ranking, and recommendations.
Building prototypes that make our search and pricing systems more adaptive, efficient, and fair — powered by embeddings, reinforcement learning, and continuous feedback loops.
Collaborating closely with engineers to productionise insights, ensuring our models aren’t just smart, but scalable and measurable in the real world.
Working cross-functionally with product and platform teams to define how AI and data science integrate into every part of the marketplace experience.
Contributing to our internal AI playbook — helping set the standards for experimentation, evaluation, and ethical AI in production environments.
It’s not about ticking every box. It’s about turning up curious, ready to crack on. You’ll do well here if you bring:
Strong applied data science experience in modern Python stacks — PyTorch, TensorFlow, LangChain, or similar.
Experience building and deploying production-grade models that solve real business problems.
Comfort working across the spectrum — from quick-turn experiments to rigorous model evaluation and refinement.
A pragmatic mindset: you know when to fine-tune, when to use off-the-shelf models, and when simpler is smarter.
Curiosity, creativity, and a desire to turn data into tangible, measurable impact.
We believe great work deserves great rewards. Here’s just a taste:
Great salary for the impact you make
Annual bonus - get rewarded for your work
Work your way - flexible, remote-friendly setup
Lunch vouchers so you stay fuelled while you build
Learning support for courses, certs and books to level up
Real time off - generous annual leave plus local public holidays
Interviews will take place in Barcelona and you will be required to work in Barcelona 2 days per week.
If you require any reasonable adjustments during our interview process, please discuss them with your Talent Acquisition Partner.
If this sounds like the place where you can do your best work, we’d love to hear from you, even if you don’t tick every box
About us
We’re Checkatrade – the UK’s leading platform for finding a tradesperson. With more than 50,000 trades listed and over 6 million reviews, we help homeowners get jobs done right and help tradespeople grow their business.
We’re growing fast, with big plans to become the go-to brand for home improvements. If you care about great work, take pride in the details, and want to make an impact, you’ll fit right in.
Top Skills
What We Do
Checkatrade is one of the UK’s top online marketplaces for home improvements and repairs.
Our mission is to be the trusted foundation of every home by connecting people with trades and tools to make home improvements easy – because we believe safe and happy homes improve lives, support livelihoods, and build communities.
From our humble beginnings in 1998 to becoming a national household name, we’re on an exciting journey. For more than 25 years Checkatrade has stood for reputation and raising standards – whether that is for our trade members, consumers, or our colleagues. We think big and are passionate about changing the face of home improvements and repairs.
Today, we are a modern online marketplace and a force for good. We strive every day to support people to improve their homes and we don’t settle for the status quo – we are evolving, innovating, and growing.
With generous investment from private equity partners Brookfield, we have an ambitious growth plan and a robust roadmap to get there. Led by our values – Be All In, Always Customer Obsessed, Get It Done, Be Bold, and Do The Right Thing – we are 500 high-performing individuals working across the UK, with high-spec offices in London and Portsmouth.
We are here to be the best and inspire others to do the same, and to get there we need exceptionally talented, bright, and driven people – so if that sounds like you, you couldn’t join at a better time!
