Job Title: Senior Data Scientist

Location: London, 3 day's p/w onsite

Salary: £85,000 - £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.