Senior Data Scientist
Checkout.comPayments company
London, United KingdomSenior
Coatue
DST Global
Dragoneer Investment Group
Endeavor Catalyst
Altimeter Capital Management
Blossom Capital
Data & AI
About the role
TL;DR
Lead advanced optimisation projects and develop robust ML architectures.
- •Checkout.com is looking for an experienced Senior Data Scientist to lead advanced optimisation projects and champion the development of robust, sustainable ML architectures.
- •Key Responsibilities Lead projects and architecture design for multi-objective optimisation and scalable models.
- •Create custom loss functions, evaluation, and tuning frameworks that reflect complex business problems.
- •Collaborate with product stakeholders to align technical strategy with business goals and resolve blockers across the team.
- •Apply efficient data transformations using distributed computing (e.g., Spark, Dask) and ensure robust test coverage for production systems.
- •Mentor junior team members and utilise model explainability methods to drive feature performance improvements.
- •Requirements 5+ years of experience in designing, building and maintaining machine learning models to solve complex, large-scale business problems.
- •Deep understanding of frequentist and Bayesian statistics, plus supervised and unsupervised modelling techniques.
- •Proven experience modelling complex interactions (e.g., cluster or network effects).
- •Expertise in model explainability to tune feature engineering and understand feature interactions.
- •Ability to write high-quality, production-grade Python code and collaborate effectively with non-technical stakeholders.
Required skills
PythonMentoring
Nice-to-have skills
DockerAWSGoogle Cloud
Domain expertise
fintech
Tech stack
PythonSparkDockerAWSGoogle Cloud
