Principal Applied Data Scientist

LSEG

📍 london, england, United-Kingdom

Full-time IT & Technology

Job Description

ROLE SUMMARY

As a Principal Data Scientist (individual contributor), you will play a hands‑on role in designing, building, and deploying scalable AI solutions that go beyond prototypes and are actively used in production. You will work closely with collaborative teams to co‑develop innovative products for financial markets and professionals.

WHAT YOU'LL BE DOING

  • Lead the end‑to‑end development of AI solutions: design, build, test, and deploy models that are robust, scalable, and used by real users.
  • Apply NLP and LLM techniques to solve real‑world problems, ensuring models are optimised for performance and reliability.
  • Continuously improve model quality through tuning, evaluation, and feedback from production usage.
  • Evaluate third‑party AI solutions with a critical eye on performance, scalability, and integration into production environments.
  • Write and maintain production‑grade Python code, adhering to best ...
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