Data Scientist leveraging data insights and machine learning for operational efficiency and innovation. Collaborate with stakeholders to drive impactful strategic decisions.
Responsibilities
Use innovative data analytics and machine learning techniques to extract valuable insights from data
Identify, collect, and extract data from various sources
Perform data cleaning, wrangling, and transformation for analysis
Develop and maintain efficient data pipelines for automated data acquisition
Design and conduct statistical and machine learning models for analysis of patterns and trends
Develop predictive models to forecast future outcomes
Collaborate with business stakeholders to add value from data through Data Science
Advise and influence decision making and contribute to policy development
Lead a team performing complex tasks and set objectives
Identify ways to mitigate risk and develop new policies/procedures
Requirements
Exceptional ability to extract strategic insights from large data sets and communicate these to non-technical business stakeholders
Experience with multiple of the following methods: PCA, MDS, factor analysis, regression analysis, choice models, cluster analysis, density estimation, kernel methods, Bayesian methods, classification, decision trees, MCMC, systems dynamics, gradient boosting, NLP
Significant experience applying machine learning methods with big data technologies
Significant experience in Python and the key analytical and machine learning libraries
Able to write production quality code with strong grasp of key coding principles: e.g. separation of concerns, generalisation of code
Experience on building and deploying in cloud infrastructure such as AWS, Azure or GCP
Experience in leading on, building and deploying enterprise GenAI projects
Deep understanding of LLMs, GenAI frameworks and techniques e.g. RAG, Agentic AI, evaluation and monitoring
Ability to understand and translate the pattern recognition, exploration of the data, machine learning and algorithmic learning
Actively seeks out and applies new analytical methods that can improve the speed and quality of the decision takes within Barclays Business
Experience in providing technical mentoring to more junior colleagues
Masters or PhD in a highly numerate discipline such Statistics, Mathematics, Physics, Computer Science or Engineering with a strong programming background
Experienced in creating business models, both financial and consumer behavioural
Extensive experience of statistical analysis, data mining and visualisation techniques
Experience of data warehouse and MI environments and practises with good working knowledge of SQL and at least one business intelligence package (Tableau/PowerBI)
Experience in PySpark and a Hadoop environment
Project management and cross functional matrix leadership experience
Experience in line management of data scientists
Experience in front end development frameworks such as Angular/React/ Flask/Streamlit
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