Job description

Define, manipulate, aggregate and use both structured and unstructured “big data” in order to support descriptive and predictive analytics across the businesses.


  • Collaborate with scientists, product groups and content groups to perform “big data” aggregations, symbology mapping, and manipulations of important data-sets
  • Perform statistical (and machine learned) analyses on data to serve business purposes
  • Narrate stories (sometimes to a non-technical audience) about our content and processes by data analysis and visualization
  • Define and develop software for the analysis and manipulation of large and very large data-sets
  • Guide the architecture of “big-data” business processes with an eye towards robustness, parsimony and reproducibility (at senior levels) We are looking for a Data Scientist to work on predictive models related to investment banking. We will rely on you to build products by extracting insights from underlying data. You will also monitor the effectiveness of existing models and improve on those models. You will actively participate in a hypothesis-driven research process: reviewing academic literature, developing and testing hypotheses, running analyses to test hypotheses, and gaining insights from research findings. If you are eager to learn and passionate about creating novel and robust predictive models, then this is the job for you! Primary responsibilities: Build new models to fill out the Refinitiv portfolio of offerings in investment banking Monitor the performance of existing investment banking models Monitor market trends and changing regulation that affect our models Regularly upgrade models to reflect changing conditions/regulations Improve on the underlying algorithms of existing models Review pertinent academic literature Participate in developing research hypotheses Perform analyses to test hypotheses and formulate insights Design metrics to evaluate model performance Present and communicate results and ideas clearly and concisely to other members of the research team Collaborate with other teams as needed Promote and explain the models to our customers Qualifications: Master’s or Ph.D., in engineering, mathematics, science, computer science, economics, or finance, or equivalent experience Strong and significant programming experience, preferably in Python. Proficiency in a Unix or Linux environment a plus Solid understanding of statistical methods and/or machine learning such as hypothesis testing, time series analysis, regression, classification and clustering Proficiency in SQL (any flavor) Strong interest in finance Top notch quantitative aptitude Ability to think creatively and communicate sophisticated concepts clearly and concisely Knowledge & Skill:
  • Experienced professional with in-depth knowledge of technical discipline or specialism
  • Provides subject matter expertise across sub-units
  • Strong understanding of other roles within the function or Business Unit and how they are connected
  • Knowledge of relationships between all relevant groups within the company
  • Adapts traditional approaches to solutions and applies in different circumstances
  • Demonstrates mastery of a specific discipline across a range of related issuesScope of Impact:
  • Leads routine projects with manageable risks and resource requirements
  • Provides input to department objectives and goals of a sub-Business Unit or function
  • May manage budgets for small projects or programs
  • Advises middle management on functional matters, or on interpretation of policies and practices
  • May train or mentor professional colleaguesStrategic Planning & Decision Making:
  • Makes recommendations that may shape operational strategy
  • Determines the nature of complex or undefined problems; independently identifies the best solution from many alternatives
  • Escalates higher risk or more unique problems
  • Decisions require interpretive thinking and some judgment in developing solutions


At LSEG, we believe that creating a diverse and inclusive organisation is fundamental to the way we deliver on our promise of creating essential partnerships and open opportunities. Our open culture is central to how we deliver our purpose – driving financial stability, empowering economies and enabling customers to create sustainable growth – in everything we do.


Working with us means that you will be part of a dynamic organisation of 25,000 people across 70 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce. You will be part of a collaborative and creative culture where we encourage new ideas and are committed to sustainability across our global business. You will experience the critical role we have in helping to re-engineer the financial ecosystem to support and drive sustainable economic growth. Together, we are aiming to achieve this growth by accelerating the just transition to net zero, enabling growth of the green economy and creating inclusive economic opportunity.


LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.


We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants' and employees' religious practices and beliefs, as well as any mental health or physical disability needs.


Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject.


If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.

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