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Data Scientist
OnBuy Limited
- London, England, United Kingdom
- London, England, United Kingdom
À propos
As our Data Scientist you will help drive growth and improve customer experience across OnBuy. You’ll work closely with Product, Marketing and Seller teams to turn data into actionable insight, build predictive models, and influence commercial decisions at pace. Key responsibilities
Develop and deploy data science models to support key e-commerce use cases such as purchase propensities, marketing attribution, product recommendations and retention risk. Design and analyse experiments (A/B and multivariate testing) to evaluate product and marketing initiatives. Translate business problems into clear analytical questions and data science solutions. Continuously monitor model performance and refine models to ensure accuracy and effectiveness in an evolving ecomms landscape. Communicate insights and model outputs clearly to non-technical stakeholders, influencing decisions. Collaborate with Data Engineers to ensure models are scalable, reliable and production ready. Work closely with analysts to share best practice, provide coaching, and raise overall data capability across the team. Support a culture of data-driven decision making across the business. Essential
Degree in Data Science, Mathematics, Computer Science, or a related field. Over 2 years data science experience ideally within an e-commerce, digital, or consumer business. Ability to focus on business outcomes (growth, conversion, retention, margin), not just models — and to prioritise work that delivers measurable impact. Confident in statistics, experimentation, and machine learning, with the judgement to choose the right level of complexity for the problem. Understanding of customer behaviour, funnels, marketing channels, pricing, and product performance — or the ability to learn this quickly. Can explain complex concepts simply, tell a compelling data story, and influence non-technical stakeholders to act on insights. Works effectively with analysts, data engineers, product and marketing teams — building reusable, well-documented, scalable solutions and raising capability around them. Excellent Python skills (e.g. pandas, numpy, scikit-learn, statsmodels) and strong expertise in SQL for data querying, manipulation, and transformation. Familiarity with cloud data platforms (e.g. BigQuery, Snowflake, Databricks). Excellent problem-solving skills. Desirable
Experience with recommendation systems, forecasting, or causal inference. Knowledge of marketing analytics (attribution, MMM, incrementality). Experience with data visualisation tools. Understanding of version control using Git. Salary and Benefits
The salary on offer for this role is £65000- £70000 depending on experience. We also offer the following benefits: Company equity – In return for helping us to grow, we’ll offer you company equity, meaning you own a piece of this business we are all working so hard to build. 25 days annual leave + Bank Holidays 1 extra day off for your Birthday Employee Assistance Programme Perks at Work benefit platform Opportunities for career development and progression Plus in return for helping us to grow, we’ll offer you company equity, meaning you own a piece of this business we are all working so hard to build. Our Commitment
OnBuy is an equal opportunities employer. We are dedicated to creating a fair and transparent workforce, starting with a recruitment process that does not discriminate on the basis of gender, sexual orientation, marital or civil partnership status, pregnancy or maternity, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability, or age.
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Compétences linguistiques
- English
Avis aux utilisateurs
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