At Cleo, we’re not just building another fintech app. it’s a chance to join a team of brilliant, driven individuals who are passionate about making a real difference.
We have an exceptionally high bar for talent, seeking individuals who are not only at the top of their field but also embody our culture of collaboration and positive impact.
If you’re driven by complex challenges that push your expertise, the chance to shape something truly transformative, and the potential to share in Cleo’s success as we scale, while growing alongside a company that’s scaling fast, this might be your perfect fit.
About The Role You’ll join the existing Risk Decisioning data science function here at Cleo; a thoughtful and collaborative team of ML engineers, analysts, and data engineers with significant industry experience that is at the heart of everything we do at Cleo. You’ll build and deploy production models that developers will feed directly into the product.
We are highly data‑driven, whether that be understanding natural language, deriving insights from financial data,



or determining which financial product is best suited to a user. You’ll be working on a hugely impactful workstream, focused on the machine learning that underpins our Risk Decisioning feature.
Check out this blog on Isabelle's journey in ML at Cleo.
Extensive experience building and deploying Machine Learning models to production.
Experience managing and developing high performing teams of data scientists and ML engineers.
Ability to write production quality Python code and a willingness to be somewhat hands‑on.
Kubernetes, Docker, and/or Mesos.
Experience using vector databases such as OpenSearch.
Python Programming Interview (45 mins)
UK Hybrid: £120,000 – £150,000
~ UK Remote: £110,400 – £133,400
~ If you live in London we have a hybrid approach, we’d love you to spend one day a week or more in our beautiful office. Company‑wide performance reviews every 4 months.
~ Equity top‑ups awarded across all levels i

📌 Machine Learning Lead Engineer (España)
🏢 Cleo
📍 España