7 of 7 Contract Data Scientist Jobs in London

Lead Data Scientist - GenAI Specialist (Contract Role) We are seeking an experienced Lead Data Scientist with expertise in Generative AI (GenAI) to take ownership of end-to-end data science solutions for high-impact projects across a range of industries. This is a contract position offering the opportunity to lead cutting-edge AI initiatives, collaborate … with diverse teams, and deliver tangible business value through advanced analytics and machine learning. About the Role As the Lead Data Scientist , you will: Drive the design and delivery of end-to-end data science solutions with a focus on GenAI and Large Language Models (LLMs) . Manage and mentor junior data scientists and analysts, ensuring … This is an ideal role for someone who thrives on solving complex problems with innovative approaches while balancing real-world practicality to deliver meaningful impact. Key Responsibilities Lead multiple data science projects from concept to deployment.? Architect and implement GenAI/LLM solutions (prompt engineering, fine-tuning, evaluation frameworks).? Write and review high-quality Python code for production More ❯

Data Scientist - GCP | £500-£550 per day (Inside IR35) 2 Days Onsite - Isleworth, West London | 6-Month Contract (Extendable) 83zero are partnered with a global leader in media and broadcasting, looking for an experienced Data Scientist to support a business-critical project. You'll be joining a collaborative team of data scientists and engineers to … build and refine machine learning models that deliver genuine commercial impact. What You'll Be Doing: Work closely with fellow data scientists to explore how AI/ML can unlock insights and improve decision-making. Perform advanced analysis on large, complex datasets using statistical and modelling techniques. Build, test, and tune ML models (especially NLP or computer vision) using … modern ML libraries, all within Google Cloud Platform (GCP) . Optimise models for accuracy and performance, ready for product integration. Stay up-to-date with the latest developments in data science and AI to drive innovation. Present insights, results, and model performance clearly to both technical and non-technical stakeholders. Ensure your workflows are reproducible and well-documented, including More ❯

Senior Data Scientist - Marketing Analytics Focus Hybrid (London-based) Join a growing data science function driving transformation across several established consumer-focused businesses. This is a key opportunity for a Senior Data Scientist to specialise in Marketing Analytics, helping shape data-driven strategies and build impactful models that power acquisition, retention, personalisation, and campaign … machine learning algorithms and statistical models tailored to the marketing domain Apply techniques such as segmentation, uplift modelling, customer lifetime value prediction, and targeting optimisation Identify and adopt innovative data science methods to improve marketing performance Insights & Reporting Analyse large-scale marketing datasets to extract actionable insights Support campaign measurement, customer journey analysis, and ROI optimisation Stakeholder Collaboration Work … closely with marketing, digital, and data teams to understand business needs Present findings and recommendations clearly to both technical and non-technical stakeholders Help integrate models into marketing workflows and decisioning tools Model Governance & Data Strategy Ensure models are robust, explainable, and compliant with governance and regulatory standards Contribute to the broader data science roadmap and experimentation More ❯

Job summary An exciting opportunity to be involved at the cutting edge of oncology AI research and innovation in East London. This role is for a talented Principal Data Scientist to lead the data science workstream of PharosAI at Barts Health. They will join a growing team which is focused on AI and reproducible applications of healthcare … data to deliver innovative health care products and services to the front line. Barts Health has been awarded£4.3mas part of £18.9m in funding from the Department for Science, Innovation and Technology to support the PharosAI programme by providing expertise in AI development and ensuring that data from theBarts Health Data Platformas well asBarts' local tissue biobanksinforms … for the benefit of people in North East London, the UK and beyond. There is a requirement for the successful candidate to additionally cover the Barts Life Sciences Lead Data Scientist role as maternity cover. This will involve providing line-management to the existing highly-competent and experienced Data Science team until May 2026, when the incumbentLead More ❯

Data Scientist (Contract) – AI/NLP for Cleared Defence Deployment Contract | Inside IR35 | £600–£700/day | Hybrid/Secure Site | SC/DV Cleared | UK Nationals Only Contract Length: Initial 3-month engagement (rolling), forming part of a 6–9 month delivery track We've partnered with a fast-paced UK-based AI software company delivering a … major MOD-backed programme. They're developing a mission-critical AI capability for deployment in a secure environment, and they're looking for data scientists who excel in tackling complex challenges. This is high-impact work, constrained by real-world operational, compute, and security boundaries and delivered as part of a small, elite, cross-functional team. What You’ll … Designing and implementing NLP pipelines for transcription, topic extraction, and summarisation Developing modular LLM workflows (e.g., RAG, graph-based reasoning) optimised for low-resource deployments Integrating structured and unstructured data: transcripts, policy documents, supply chain models Collaborating with platform engineers to containerise models for edge inference Defining evaluation frameworks using both metrics and human-in-the-loop feedback Supporting More ❯

2X Data Scientist Contract Core skills: Python ideal, R and SQL Role 1: Requires: PowerBi, Athena skills Role 2: Oracle DB, C++, PL/SQL - ideally they need to be able to work their way around Oracle. Typical outputs that we would expect of these roles are as follows: help the project team measure and assess service performance More ❯

2X Data Scientist Contract Core skills: Python ideal, R and SQL Role 1: Requires: PowerBi, Athena skillsRole 2: Oracle DB, C++, PL/SQL - ideally they need to be able to work their way around Oracle. Typical outputs that we would expect of these roles are as follows: help the project team measure and assess service performance outcomes More ❯