Mathematician

Title: Principal/ Lead Mathematician

Rate: £450-£550 Outside IR35

Contract duration: 3 months (Initially)

Start date: Immediately!

We're partnering with a highly technical, early-stage organisation building a next-generation, AI-driven decision platform. They're looking for a Principal / Lead Mathematician to own the mathematical foundation that underpins the entire system.

This is a rare opportunity to sit at the heart of product design - translating human problem-solving processes into rigorous mathematical, algorithmic and optimisation models that power summarisation, semantic search, and decision-support workflows.

You'll lead the design and validation of core algorithms, working closely with Data Scientists and Engineers to embed mathematically sound models into a modular, cloud-native platform.

What you'll be doing

• Designing end-to-end mathematical models that translate real-world workflows into executable system logic
• Applying algebraic modelling, graph theory, optimisation and statistics to complex, unstructured data problems
• Prototyping and validating algorithms in Python and MATLAB
• Shaping the mathematical backbone of vector search, intent extraction and LLM-driven workflows
• Producing clear, auditable documentation in LaTeX and Jupyter
• Acting as th...