Data Scientist - UK

原始資料於 2026-11-04T15:06:42.211684+00:00 查閱；內容可能已更新，請查看原始職位。

What We Are Looking For
You are a rigorous thinker who treats data as evidence, not decoration, and is comfortable telling a clear story about uncertainty
You have strong technical chops in SQL and Python, and you reach for the right tool, statistical, experimental, or ML, based on the problem in front of you
You can design experiments, reason about causality, and identify when a correlation is enough and when it is not
You are comfortable owning ambiguous, open-ended problems and breaking them down into a credible plan
You communicate findings crisply to technical and non-technical audiences, in writing, in dashboards, and in person
You raise the bar for the team through code review, methodology review, and mentorship of less senior analysts and scientists
What You Will Be Doing
Own analytical problems end to end from problem framing and metric definition through data acquisition, modeling, validation, and stakeholder rollout
Build predictive and inferential models such as forecasts, propensity and uplift models, and survival or duration analyses, where they meaningfully improve a product or operational decision
Develop statistical methods and reusable analyses for measuring performance, including detection accuracy, intervention impact, and downstream operational outcomes
Partner with Product, Engineering, and Operations to define key metrics, implement new features, and translate business questions into well-scoped analytical work
Audit system outputs and provide structured feedback that improves product accuracy and reliability
Communicate findings through dashboards, written analyses, and stakeholder presentations that lead to concrete decisions
Help define best practices around data quality, experimentation, modeling, and reproducibility, and contribute to the team’s data contracts and SOPs
Requirements
5+ years of experience as a Data Scientist, Quantitative Analyst, or similar role, with a track record of shipping analyses and models that changed product or business decisions
Strong proficiency in SQL, including complex CTEs, window functions, and query optimization
Strong proficiency in Python for data work, including pandas, NumPy, and experience with statsmodels or other relevant tools
Solid grounding in applied statistics: hypothesis testing, regression, experimental design, and uncertainty quantification
Experience designing and analyzing A/B tests or other controlled experiments in a product setting
Experience building at least one class of predictive model end to end, for example forecasting, classification, or propensity modeling
Experience with data visualization and BI tools, and the ability to turn an analysis into a clear narrative
Excellent written and verbal communication, with the ability to influence cross-functional partners without authority
Ability to work independently, manage multiple priorities, and drive ambiguous projects to completion
Nice to Have
Experience with Snowflake or a comparable cloud data warehouse
Experience with Sigma, Looker, or similar BI tools
Experience with database engineering/architecture
Background in retail, logistics, marketplaces, or other operationally complex environments
Experience mentoring analysts or junior data scientists
Why Focal Systems
Strong Values and Mission - We are a tightly-knit team with an ambitious mission and a strong set of core values, which define our approach to business and have successfully guided us since inception.
Exceptional Team - We are a team of hard-working, fun-loving professionals from some of the most eminent universities, research labs, and tech companies of our time. We pride ourselves on recruiting exceptional individuals to help us redefine the state-of-the-art.
Outstanding Partners - We work with 10+ of the largest retailers in the world and have a world-class roster of investors, advisors and partners to support & advise us in our endeavors.