Senior Data Scientist jobs in Windsor, Berkshire

We are working with Fyxer AI, the UK's fastest-growing tech company in the UK, to hire a Senior Data Scientist. Fyxer are building the Cursor for email. Since launching in May 2024, they have gone from $0 to $20m in ARR and raised a $30m Series B from top investors. Hiring small numbers of exceptional people, Fyxer’s next vital hire is a Senior Data Scientist who will take on ownership of key...

You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK.

You will take ownership of the UK’s data science function, this will include providing strategic and technical direction, team building and communicating with senior stakeholders across the business.

Senior Data Scientist (Marketing Mix Modelling (MMM), A/B Tests, Causal Inference) Employment Type: Contract (Outside IR35) Length: 12 months Contract Rate: 500 - 550 We’re looking for someone who enjoys solving complex problems at the intersection of data, marketing, and technology. You’ll play a key role in building models, experiments, and optimisation tools that help shape how marketing...

You will work within a tight-knit, agile team tackling real-world problems using cutting-edge data science and engineering techniques. Key Responsibilities: - Develop and deploy machine learning models - Solve complex data problems in a big data environment - Build scalable data pipelines and APIs

Senior Data Consultant / Scientist – KPI Dashboarding (Contract) 📍 Hybrid (Remote + 1 day/week in Heathrow) 💰 £800/day (Inside IR35) 🕒 Start Date: Week commencing 17th November 2025 📆 Duration: 8 weeks About the Role Our client is launching a new engineering workstream focused on building a KPI dashboard to support transformation initiatives. They are seeking a Senior Data Consultant /...

Senior Data Scientist - BioTech - London A pioneering London-based biotech company are looking for a Senior Data Scientist to join their team. What will I be doing? - Drive breakthrough algorithm development that's never been done before. You'll be the technical powerhouse behind revolutionary nanopore technology, transforming impossibly noisy time-series data into game-changing insights for...

You will lead end-to-end data projects, from shaping datasets and building models to designing scalable data workflows that power the insights and decision frameworks we deliver.

You will work with diverse open data sources, ranging from search, social and e-commerce, to academic papers and patents, to understand audience behaviour and anticipate how needs will evolve over time.

Senior Data Scientist - Paying up to £85,000 + bonus - Hybrid in London - AI/ML-Driven PropTech I am currently working with start/scale up within the PropTech sector looking to hire a Data Scientist to work on high-impact predictive modelling projects in a fast-growing company. This role offers the opportunity to work end-to-end on ML models, helping to revolutionise the property industry by...

- Build models across credit, insurance, pricing, and more. - Leading model development from the ground up to drive business impact. - A great next step for a data scientist who thrives in the modelling space. We’re looking for a commercially minded Senior Data Scientist with a passion for building risk models. If you’re the kind of data scientist who doesn’t just tweak existing models but...

Senior Data Scientist Consultant – London | Hybrid Who I’m looking for You’re an experienced consultant who thrives on solving complex client challenges through data, analytics, and technology. You’re confident operating in ambiguous environments, bringing structure, clarity, and insight to every engagement. You combine deep technical expertise with strong communication skills — able to...

Senior Data Scientist Remote (quarterly travel to London) Up to £75,000 We are working with a well-established media group with a diverse portfolio of household brands spanning publishing, entertainment, and digital products. The business is investing heavily in analytics and data, with the aim of transforming how customers experience their products and services. You’ll be the first Data...

🚀 3 x Senior Data Scientists | London | Financial Services 📍 London (Hybrid) 💰 Up to £100,000 + Equity + Private Health 🧑 💻 Machine Learning | Data Science Libraries | Deep Learning Frameworks | AI Our client partners with some of the world’s leading financial institutions to deliver innovative, data-driven solutions that transform decision-making and operational performance. From major...

Senior Data Scientist (Contract) – Applied ML | AI | Optimisation Remote | UK/EU Time Zones | B2B/Outside IR35 *One-stage Interviews are taking place next week We’re hiring a Senior Data Scientist for a long-term contract with a scaling digital platform that’s investing heavily in its data and AI capability. This is a hands-on, applied ML role where you’ll work on production-grade models that...

🧪 𝗦𝗲𝗻𝗶𝗼𝗿 𝗗𝗮𝘁𝗮 𝗦𝗰𝗶𝗲𝗻𝘁𝗶𝘀𝘁 - 𝗖𝗼𝗻𝘁𝗿𝗮𝗰𝘁 🧪 📍 Location: Hybrid 1-2 days per week onsite in London 📅 Start: 1st December - 1st April initially 💰 Day Rate: Outside IR35 - £500-600 - depending on experience. An established consultancy is seeking a Senior Data Scientist (Contract) to lead and deliver a series of high-impact machine learning proof-of-concept and beta-stage projects for a major public...

Senior Data Scientist x2/3 days a week in the office About the Role & Company This is a leadership opportunity at a fast-scaling AI consultancy known for its technical excellence and track record in delivering real-world impact across highly regulated industries. The team helps major clients in finance, insurance, legal, etc., apply cutting-edge data science in complex operational...

You will have full ownership over independent model ideation/creation, with the immediate focus being to help deliver pricing models (no prior experience needed), utilising guest data, and then will introduce the latest AI features/tools as well as other greenfield models/projects.

You will be the second data science hire, working hand-in-hand with our Technical Lead to architect and execute the data strategy that powers our entire product. Your primary mission will be to design, build, and own the end-to-end ML pipelines that ingest, structure, and enrich our HTA/MA database.

You will have a direct and visible impact on our product and our business.

PRODUCT DATA ANALYST / SCIENTIST UP TO £80,000 HYBRID – LONDON 2x PER WEEK + 1x MONTHLY TEAM TRAVEL *Please note, you must be a UK resident and citizen to apply* THE COMPANY Backed by private equity, this fast-growing consumer technology business is on a mission to become more product-focused and deliver greater personalisation for its users. With strong leadership and exciting growth plans,...

You will be working on a number of large Defence and Government projects and be given the opportunity to lead a number of high-profile programs.

You will work as part of a dynamic and close-knit team building new and proprietary approaches to solving multiple problems across the industry.

Senior Data Scientists / Analysts – SC/DV Cleared – (Military/Veteran-Friendly) — Multiple Openings 🌳 Location: London (Remote & Hybrid options) 🌳 Employment: Permanent 🌳 Clearance: Current SC or DV required 🌳 Make sense of mission-critical data that actually drives decisions. 🌳 Areti Group is partnering with one of the UK’s fastest-growing Series A-funded tech start-ups to hire multiple...