Data Scientist - Tax & Legal

Job Title: Data Scientist
Location: London
Salary/Rate: Up to 620 per day inside IR35
Start Date: 10/11/2025
Job Type: Contract

Company Introduction

We are looking for a Data Scientist to join our Data and AI Team supporting internal service delivery transformation projects across Tax and Legal. You will be a Python and Azure expert in designing and building cutting-edge generative AI solutions for complex challenges. You will report to the Technical Lead and collaborate with data scientists, software engineers and market specialists across the team to build and deliver high-impact solutions

1. Build and deploy Python based AI applications
2. Research and design advanced experiments and prototypes using cutting edge techniques, specifically in GenAI
3. Develop various LLM assisted frameworks
4. Design and write clean, maintainable, auditable and well documented codebases
5. Implement testing pipelines and evaluation frameworks
6. Good documentation practices to ensure seamless operations
7. Exceptional teamwork and communication skills working in a cross functional environment with other data scientists, software engineers and T&L domain experts

1. Be an expert Python programmer proficient in frameworks/libraries such as: Numpy, Pandas, Scikit-Learn, Langchain, Llamaindex, Azure AI Foundry amongst others.
2. Must have Azure and be an expert with R&D on generative AI techniques
3. Practical experience with GenAI techniques such as Finetuning, Prompt engineering, prompt orchestration, retrieval methods (RAG and Knowledge graph techniques), Agentic Systems etc.
4. Knowledge of Agentic frameworks such as LangGraph, Azure AI Foundry Agents, Semantic Kernel Agents etc.
5. Knowledge of prompt orchestration and optimisation techniques such as Azure Semantic Kernel, Prompt flow etc.
6. Skilled at working with AI engineers to write production ready python code and implementing robust quality control methods in solutions
7. Have knowledge of basic software engineering concepts and best practices for team-based programming, including versioning, testing, and deployment

1. Adept at creating highly optimised workflows and solutions
2. Deep knowledge of various Microsoft Azure AI services
3. Strong data analytics and visualisation skills specifically using tools like Excel and Alteryx
4. Knowledge of Responsible AI practices

If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format.

Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies.

Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.