Senior Data Scientist
London
A rare chance to join a growing data and AI business that blends proprietary software with hands‑on analytical consultancy. You will work on cutting‑edge machine learning products used by financial services clients, quant teams, and large enterprise customers.
The Company
They are an established data and software organisation, their dual offering combines in‑house tools with consultancy, giving clients both scalable products and deep technical support.
The Role
• Build, train, and optimise machine learning models used by financial services clients and quant teams.
• Develop LLM‑based solutions including finetuning, conversational agents, and NLP‑to‑LLM pipelines.
• Contribute to proprietary data assistance products designed for analytical workflows.
• Work across Python‑based modelling, experimentation, and error analysis.
• Collaborate closely with engineering teams while leveraging an existing deployment function.
• Support continuous improvement across modelling strategies, feature engineering, and evaluation methods.
Your Skills and Experience
• Strong commercial experience using Python for machine learning.
• Solid grounding in maths, statistics, or a related quantitative discipline.
• Background working with financial services data or trading‑focused models.
• Experience building ML models end‑to‑end, including optimisation and error analysis.
• Knowledge of LLMs, finetuning, conversational AI, or modern NLP techniques.
• Comfortable working in a collaborative environment with engineers and product teams.
What They Offer
• Opportunity to work directly with senior leaders and impact product direction.
• A modern tech environment and a team of experienced data scientists to collaborate with.
How to Apply
If this role sounds like the right next step, send your CV to be considered.
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