Job Title: Senior Data Scientist
Location: London, 3 day's p/w onsite
Salary: £90,000 + Bonus
I'm looking for a Senior Data Scientist to lead advanced modelling projects and help shape our clients data strategy. You’ll work closely with Product and Engineering to build high-impact, scalable data solutions, combining statistical modelling, machine learning, and cutting-edge AI/LLM techniques.
What You’ll Do
● Translate business problems into clear modelling approaches.
● Lead end-to-end design and prototyping of ML/DL/LLM models.
● Conduct hypothesis testing, causal analysis, EDA, and feature engineering.
● Build and validate models using modern ML frameworks (e.g., PyTorch, LightGBM, Scikit-Learn).
● Define reproducible modelling standards, drift detection, and quality controls.
● Work with Engineering to productionise prototypes and ensure scalability.
● Guide Build vs. Buy decisions and advise on latency/cost/accuracy trade-offs.
● Stay up to date with the latest advancements in ML, LLMs, and agentic AI.
What You Bring
● Degree in Statistics, Computer Science, or related field (2:1+).
● 5+ years’ experience in data science with strong analytical decision-making.
● Advanced SQL + strong Python skills in ML/AI libraries.
● Hands-on experience with LLMs, embeddings, vector stores, and modern AI techniques.
● Proven track record delivering ML/LLM/CV/NLP solutions that drive business value.
● Strong understanding of core ML theory, statistical inference, and model validation.
● Experience working with cloud platforms (GCP or AWS).
● Excellent communication and project management skills.
Nice to Have
● MS/PhD in a quantitative discipline.
● Experience building agentic systems or multimodal models.
● Knowledge of sampling design, power analysis, or non-parametric testing.
● Publications or patents.
● Background in marketing/media analytics.