26 to 50 of 69 Senior Data Scientist Jobs in London

Lead Data Scientist 🚀 High-Growth Series A Technology Company 🚀 💸 £90k – £122k + equity & benefits 📍 London (Hybrid working) ✅ AI-first organisation with a collaborative, innovation-led culture ✅ Visionary leadership driving a genuinely disruptive, sustainability-focused product ✅ Equity upside with a clear path toward scale, exit, and IPO About … machine learning . Following a successful Series A raise, the business is entering a rapid growth phase and investing heavily in its data science and AI capability . Built by experienced founders, the company develops machine learning-driven software for e-commerce optimisation , helping clients reduce operational costs ...

scale a growing GenAI function inside one of the UK’s biggest insurers? A major UK health and life insurance provider is hiring a Senior Data Scientist (AI) on a 12-month FTC basis to support a rapidly growing AI function focused on GenAI products and operational … growing AI team delivering live LLM applications and intelligent automation systems. You’ll work on high-impact products with strong internal visibility, alongside experienced Data Scientists and AI Engineers. Role Summary You’ll help design, build, and deploy AI-powered applications using both traditional ML and modern LLM tooling. ...

Senior Scientific Data Scientist/Pipeline Engineer Fully remote but can be hybrid upon request.6 Month Contract likely to extendOutside IR35£450 to £500 per day This is a chance to work on scientifically meaningful software that directly supports real-world discovery. You will take ownership … analytical pipelines that sit at the heart of a data-driven research platform, collaborating closely with scientists to turn complex experimental data into reliable, scalable insights. The Company They are a technology-led life sciences organisation operating at the intersection of biology, automation, and data. The business builds ...

Lead Data Scientist England £450-£480 Outside IR35 Remote The Company They are a specialist organisation working at the forefront of AI-driven customer engagement. Their focus is on enabling highly personalised, real-time decisions across digital channels using advanced analytics and machine learning. The business combines deep … domain expertise with strong delivery capability, supporting enterprise clients across multiple sectors. The Role and Deliverables You will take ownership of end-to-end data science delivery, from problem definition through to deployment in live environments. * Design, build, and deploy machine learning models within Pega-based decisioning platforms. * Lead ...

leading global technology firm is seeking a Senior Data Scientist to lead AI solutions and advanced analytics for diverse clients. The role requires expertise in managing the AI project lifecycle, proficiency in Python, and experience with NLP and Machine Learning techniques. The ideal candidate will work collaboratively … with cross-functional teams and mentor junior members, contributing to innovative data-driven solutions in a hybrid work environment. #J-18808-Ljbffr ...

pioneering biotech firm in Greater London is seeking a Senior/Principal Data Scientist to develop AI systems that drive scientific discovery. You will work in an interdisciplinary environment focusing on large language models and machine learning, translating complex biological questions into computational tools. The ideal candidate ...

Principal Data Scientist page is loaded## Principal Data Scientistremote type: Hybridlocations: London, United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: R0020855## What You'll Do* Lead high-impact data science initiatives end-to-end, including problem framing, methodology selection, experiment development, implementation partnership … Drive scalable experimentation with A/B and Multi-armed bandit testing frameworks, power analysis, variance reduction, and online-offline alignment.* Work together with Data Engineering, MLOps, and Game Tech teams to guarantee dependable data foundations, feature accessibility, and model deployment pathways.* Build internal data products ...

Principal Data Scientist You’ll be part of the Operations Delivery Intelligence (ODI) directorate, leading the delivery of high‐value data science products that support and automate decision‐making across critical business areas. This team plays a vital role in unlocking value from data, driving optimisation … enabling evidence‐based decisions across the airline. What you’ll do: Lead the end‐to‐end delivery and lifecycle management of data science products and initiatives Scope and frame ill‐defined business problems and define data science solutions aligned with business goals Manage and coach data science ...

leading analytics company in London is seeking a Senior Principal Data Scientist to provide technical leadership in advanced analytics and machine learning. This role involves mentoring fellow data scientists and collaborating with cross-functional teams to deliver data-driven solutions, with a focus … aviation sector. Ideal candidates will have expertise in data management, strong programming skills in Python and SQL, and the ability to communicate complex ideas effectively. This position offers generous company benefits and opportunities for personal growth. #J-18808-Ljbffr ...

hands-on data scientist with deep expertise in NLP and LLMs, strong Python coding skills, and a track record of deploying models to production? Do you thrive in building real-world AI solutions that are used by actual customers? If so, we'd love to talk … ROLE SUMMARY: As a Principal Data Scientist (individual contributor), you will play a hands-on role in designing, building, and deploying scalable AI solutions that go beyond prototypes and are actively used in production. You'll work closely with collaborative teams to co-develop innovative products for financial ...

Role overview The Principal Data Scientist will lead significant data science work across AWTG and client programmes, shaping technical direction, standards and delivery approaches. The role requires deep expertise in data science, strong leadership and the ability to turn advanced analytics into organisational impact. You will … work with multidisciplinary teams across data, AI, software engineering, product, QA and delivery to create practical outcomes for clients and end users. Key responsibilities Lead the scoping, design and delivery of complex data science products, models and analytical solutions. Set standards for modelling, validation, reproducibility, coding, documentation ...

Open Data Science is looking for mid-level and senior Data Scientists/ML Engineers to join the team at Wheely. You'll be responsible for the entire process, from ideation to model implementation, tackling challenging tasks like developing driving models and pricing journeys. The position ...

people, who are relentlessly resourceful to solve problems and find smarter solutions than the status quo Build the best technology in-house , using new data sources, machine learning and AI to make machines do the heavy lifting About the role We are looking for the first data scientist to own the data science strategy for non-lending products. You will partner with the managing directors to define what to build from a data science perspective and lead the delivery of the data science projects. So far, we have successfully re-engineered our 'Big Three ...

leading analytics firm in London seeks a Senior Principal Data Scientist to drive advanced analytics in the aviation sector. This pivotal role emphasizes mentorship, technical leadership, and hands-on development of innovative data-driven solutions. Ideal candidates should be proficient in Python and SQL, experienced ...

Build a brilliant future with Hiscox. As a Principal Data Scientist you will be an integral part of a dynamic technical team, strategically focused on leveraging data science across our diverse business functions. Your expertise will transform underwriting capabilities and extend through the entire insurance value chain … championing a multi-disciplinary approach to complex problem‐solving. You will lead the end‐to‐end delivery of our most significant and complex data science initiatives, driving technical strategy, architecture, and best practices. You will mentor and coach junior and mid‐level colleagues, elevate the overall team capability ...

About the Role As a Principal Product Data Scientist, you will operate as the most senior technical leader in the Product Data Science function. You will shape the vision, set the technical direction, and drive strategic impact through innovative analytical solutions. This role is both highly … technical and deeply collaborative, requiring excellence in leadership, communication, and cross‐functional influence. What You Will Do Lead and define the Data Science strategy for Product, ensuring that advanced analytics, data science, and AI methodologies are central to how we build great products and improve customer experiences. Serve ...

think big and bring your ambition to work every day, which is why, at British Airways the sky is never the limit. Principal Data Scientist You’ll be part of the Operations Delivery Intelligence (ODI) directorate, leading the delivery of high‐value data science products that support … automate decision‐making across critical business areas. This team plays a vital role in unlocking value from data, driving optimisation and enabling evidence‐based decisions across the airline. What you’ll do: Lead the end‐to‐end delivery and lifecycle management of data science products and initiatives Scope ...

Firmwide Chief Data Office is responsible for maximizing the value and impact of data globally, in a highly governed way. It consists of several teams focused on accelerating JPMorgan Chase’s data, analytics, and AI journey, including data strategy, data impact optimization, privacy, data governance, transformation, and talent. We are looking for a team member to help support the strategy for how we make data available to power everything from new product development to Artificial Intelligence models. This team member will join the team responsible for supporting the Firmwide data publishing ...

Principal Data Scientist The closing date is 03 June 2026 Main Duties of the Job In this role, you will act as a senior technical authority, shaping and assuring complex analytical work that informs decision‐making across health systems, research and innovation partners. You will lead … development of analytical and data engineering standards, support the evolution of ICHP’s RWE offer, and provide hands‐on technical input to priority and high‐risk projects. For example, large‐scale linkage of NHS data with non‐healthcare resources (e.g. HMRC or Department for Education datasets ...

significant impact on the gaming industry? At Aristocrat, we aim to bring happiness to life through the power of play. We seek a Principal Data Scientist to help us reach our ambitious goals. You will have a vital role in enhancing gameplay, boosting player engagement, and improving business … outcomes with your advanced data expertise. This opportunity allows you to work on innovative projects, collaborate with diverse teams, and guide critical initiatives that will develop the future of our leading games. What You'll Do Lead high-impact data science initiatives end-to-end, including problem framing ...

Lead Data Scientist Up to £125,000 London (Hybrid, 2-3 days onsite per week) Company: This private equity and investment start-up are focused on streamlining and improving performance by reimagining value creation capabilities. They are utilising cutting-edge AI to generate performance insights on each aspect ...

## Principal Data Scientist & Machine Learning ResearcherApplylocations: Gloucester, South Gloucestershire: Manchester, Lancashire: London, Londontime type: Full timeposted on: Posted 30+ Days Agojob requisition id: 01804570**Date Posted:**2026-02-23**Country:**United Kingdom**Location:**Gloucester, South Gloucestershire**Position Role Type:**Unspecified**Gloucester, London or Manchester****Hybrid role: Must … safer and more connected world.**About the role:** This role is within the Strategic Research Group (SRG). The SRG are a team of Data Science, Machine Learning and AI specialists who develop novel AI solutions to mission focussed problems. In this role you will work with high levels ...

AWTG Ltd. is seeking a Principal Data Scientist to lead complex data science projects while shaping technical standards and delivery approaches. This role demands extensive experience in data science solutions, applied statistics, and machine learning. You will guide teams while ensuring ethical practices in data usage. Candidates should excel in stakeholder communication and have a passion for mentoring and continuous improvement in data science capabilities. #J-18808-Ljbffr ...

challenges, uncovering insights, and driving innovation with advanced analytics? If so, we could have the perfect opportunity for you! We’re seeking a Principal Data Scientist to join our award-winning digital team at Stantec. You will be working alongside leading Analysts and Data Engineering experts … High Wycombe or London offices, with hybrid working allowing for a mix of in-office and home working. What You’ll Be Doing Leading Data Science Initiatives – apply your expertise in data modelling, cleansing, and analytics to create innovative solutions that drive digital transformation. Deriving Powerful Insights ...

Hiscox Underwriting Group Services Ltd (HUGS) is seeking a Principal Data Scientist to lead complex data science initiatives and transform underwriting capabilities. You will mentor junior data scientists and collaborate with various business functions to maximize value across the insurance value chain. The ideal candidate will … have a degree in a quantitative field and substantial experience in data science, particularly in machine learning and statistical modeling. A strong ability to communicate complex findings to diverse audiences is essential, alongside proficiency in Python and SQL. #J-18808-Ljbffr ...