15 of 15 Senior Data Scientist Jobs in the Thames Valley

Senior Data Scientist | Lead Data Scientist | Data Engineering | Machine Learning | Cloud Computing | SC Cleared or Clearable | 2 days a week | £85,000 plus 15% bonus I am currently working with a brilliant consultancy with deep expertise in their field of Data and Cyber Security solutions, predominantly with Central Government organisations but they also … years and as a result they are involved in some of the most challenging yet rewarding large scale technical projects in the country. They are currently looking for a Senior or Lead Data Scientist, this will be a blend of client facing skills aka, the ability to understand business problems, create a novel models/solutions to More ❯

Lead Data Scientist | London | Multiple Sectors 📍 London (Hybrid) 💰 Up to £115,000 + Equity + Private Health Machine Learning | Data Science Libraries | Deep Learning Frameworks | AI I’m currently looking for: 1 x Lead Data Scientist (Financial Services) 1 x Lead Data Scientist (Retail) 1 x Lead Data Scientist (SaaS) Our … client partners with some of the world’s most recognisable brands to deliver innovative, data-driven solutions that transform customer experience, strategy, and performance. From global enterprises to digital-first disruptors, they help businesses harness the power of advanced analytics, machine learning, and AI to stay competitive in a rapidly changing market. If you’re looking for an opportunity … to shape the future of applied AI across exciting industry sectors, this is your chance. ROLES: Lead Data Scientist (Project Lead, Mentoring, Technical Lead) We are seeking Lead Data Scientists to take pivotal roles across a variety of industries. These are senior technical and leadership positions — perfect for people who want to influence the direction of More ❯

Senior Data Scientist contract London, hybrid We’re looking for an experienced Senior Data Scientist (contractor) to lead the development of an AI-powered chatbotwithin a dynamic membership ecosystem for iOS and Android. If you're passionate about Generative AI, conversational systems, and scalable tech – this role is for you. What You’ll Be … Ensure solutions are scalable, secure, and deliver a seamless user experience. Collaborate with product stakeholders to align AI strategy with business objectives. Provide mentorship and technical guidance to junior data scientists. Work hands-on in an Agile/Kanban team alongside Backend, Mobile, QA, DevOps, and Business Analysts. What We’re Looking For 5+ years of Data Science More ❯

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 banks and … stay competitive in a rapidly evolving industry. *If you’re looking for an opportunity to shape the future of applied AI in this sector, this is your chance.* ROLE: Senior Data Scientist We’re looking for 3 x Senior Data Scientists to shape solutions, guide project teams, and drive innovation across financial services clients. You … ll set technical direction, design scalable architectures, and ensure delivery of robust, production-ready AI. You’ll also act as a trusted advisor to clients, working closely with senior stakeholders to shape strategy and deliver measurable business outcomes. What You’ll Bring 🔥Deep knowledge of ML/statistical methods (e.g. supervised/unsupervised, Bayesian, time-series). ⚙️Strong Python More ❯

Job Title Senior Data Scientist - CRM Location London – hybrid working (2/3 days in City offices) Salary To c£75,000 negotiable DoE Job Reference J13015 POSITION OVERVIEW We are super excited to be partnering with one of the largest global lifestyle brands at a pivotal stage in their data journey. As they bring CRM … and customer insight capability 'in house' and roll out a new customer data platform, this role will be central to shaping how data science is delivered, working closely with Data Science teams and IT partners to build for the future, not maintain the past. They are looking for a passionate and experienced Senior Data Scientist … and regional marketing teams to align with campaign goals and customer segmentation strategies Own the full ML lifecycle—from model design to deployment and monitoring. Partner with engineering and data teams to ensure scalable solutions. Continuously monitor and improve model performance using data insights and feedback. REQURIED SKILLS & EXPERIENCE Proven experience in machine learning, particularly in recommendation systems More ❯

Senior Data Scientist Office x4 days a week This is an opportunity to join one of the most innovative firms in the global insurance market, specialising in climate-related parametric risk. Backed by world-leading (re)insurers and operating in over 15 countries, this company merges actuarial science, data science, and cutting-edge technology to address … complex climate risk exposures for corporates and governments. Following a $100M+ Series B and full-stack insurance licensing, they are expanding their London presence. As a Senior Scientist, you’ll operate at the intersection of data, modelling, and market strategy, supporting bespoke coverage for weather-related events. You’ll collaborate with commercial, technical, and research teams to … shape tailored, data-led insurance products for clients worldwide. Key Responsibilities Underwrite parametric insurance policies with a deep understanding of client needs and climate risk exposures Work with brokers and internal teams to structure, price, and deliver bespoke coverage solutions Develop and improve pricing models to monitor risk and portfolio performance Lead client-facing underwriting conversations within the London More ❯

Principal Data Scientist Location: London (3 days per week on-site) Salary: ~£100,000 - £130,000 About the Company A global education group backed by a leading private equity firm is embarking on an ambitious technology transformation. With a network of premium schools across more than 80 locations and over 100,000 students worldwide, the organisation is known … learning. Having modernised its technology stack and introduced digital platforms for parents and teachers, the group is now turning its attention to the next frontier: unlocking the power of data to drive smarter decisions, enhance student experiences, and support its global growth. The Opportunity We’re looking for a Principal Data Scientist to build and own the … organisation’s data science capability from the ground up. This is a newly created role at the centre of the company’s digital and data strategy — working closely with the CIO and senior leadership team to define where and how data can deliver the most value. You’ll help the organisation move from descriptive reporting to More ❯

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 translate complex … analytical findings into clear, actionable recommendations for clients. You build trust quickly, are commercially aware, and enjoy working at the intersection of data science, strategy, and innovation. You’re equally comfortable presenting to senior stakeholders, mentoring junior team members, or getting hands-on developing prototypes and scalable analytical solutions. What you’ll be doing Leading client engagements as … learning. Translating client challenges into well-defined analytical problems and evidence-based recommendations. Scoping and delivering complex technical projects end-to-end. Designing and implementing cloud-based or hybrid data solutions (AWS, Azure, or GCP). Applying advanced analytical and statistical methods to uncover insights and support decision-making. Writing maintainable, production-quality code (Python or similar) and adhering More ❯

Senior Data Scientist Up to £80,000 Join a Brand Equity start up that partners with leading CPG and retail brands better understand their market position, optimise marketing spend, and strengthen brand equity through advanced data science techniques. Responsibilities: Responsible for integrating multiple previously disconnected datasets Leveraging advanced techniques in machine learning, natural language processing (NLP … and computer vision Utilise these technologies to uncover novel consumer insights, empowering clients to make data-driven decisions Enhancing understanding of consumer behaviour, market trends, and emerging patterns. Play a key role in standardising AI into a global solution Requirements: MSc in Computer Science, Artificial Intelligence, Mathematics, Statistics or related fields. Experience in Consumer/Marketing Analytics Strong proficiency More ❯

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 Senior Data Scientists & Data Analysts . You’ll help deliver secure, high-impact analytics platforms for Defence, National Security, and Government projects. 🌳 Perfect for ex-Forces engineers (RAF, Army, Navy) or civilians who’ve worked in high-trust, high-stakes environments and want to use data science at scale . 🌳 What you’ll do … Build and deploy machine learning models to solve real-world problems. Design data pipelines, analytics APIs, and decision dashboards used by senior stakeholders. Apply modern data science, AI, and big data techniques to defence and security missions. Deliver secure-by-design, production-grade analytics platforms for sensitive environments. Collaborate across engineering, security, and product teams to More ❯

Areti is seeking Senior Data Scientists/Data Engineers (Palantir, Python, Data Science) to work for a series A Funded tech start-up business based in the London area a very quick start. YOU MUST BE DV OR SC CLEARED 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. The Data Scientists will apply their technical skillsets and knowledge to solve exciting real-world problems in a small and dynamic company. You will work as part of a dynamic and close-knit team building new and proprietary approaches to solving multiple problems across the industry. The ideal candidates … will have a skillset to include the following: Experience in working as a Data Scientist/Data Engineer A understand of Palantir would be a huge + Experience of completing projects to deadline. Experience in Deep Learning and DL frameworks such as Tensorflow/Pytroch Deploying ML models Good command of Python and use of libraries for More ❯

Lead/Principal Data Scientist London - 3 days a week Up to £135,000 About the Company We’re working with a next-generation private markets firm that is redefining value creation by combining deep industry expertise with data science and machine learning. This is a unique opportunity to join a company that partners directly with portfolio … companies to drive measurable operational and financial performance. They’re now hiring a Lead/Principal Data Scientist to lead machine learning projects across a wide variety of real-world domains. Working closely with a multidisciplinary team, you’ll have the autonomy to shape technical approaches while staying closely tied to commercial outcomes. This role is ideal for … someone who enjoys solving complex, ambiguous business problems using data science, and wants to work at the intersection of technology, investment, and strategy. Key Responsibilities Translate complex business problems into measurable data science solutions that deliver commercial value Lead the design, development, and deployment of predictive and optimisation models across multiple industries Own the end-to-end ML More ❯

Principal Data Scientist (Hybrid work in London - roughly 1/2 days a week in London) We’re partnered with a well-established, tech-driven company that’s redefining how data science supports product innovation and customer experience across its domain. With a strong focus on automation, personalisation, and intelligent decisioning, this organisation is placing data … high-ownership culture. Their environment encourages experimentation, cross-functional collaboration, and the freedom to shape what “great” looks like in machine learning at scale. The Role As a Principal Data Scientist, you’ll play a pivotal role in shaping the company’s ML capability, both technically and culturally. Working alongside a collaborative data science team, you’ll … real-time modelling infrastructure. This is a hybrid hands-on/leadership role, ideal for someone who thrives at the intersection of applied research, platform integration, and engineering-minded data science. What You’ll Be Doing Build and deploy a wide variety of models spanning classification, regression, propensity scoring, and LLM-based use cases Spearhead the entire company’s More ❯

Lead Data Scientist | Biotech & Machine Learning | London (3/4 days per week onsite) About Excited to apply advanced machine learning to real-world biomedical discovery? This fast-growing biotech startup is building breakthrough algorithms that extract insight from complex, noisy time-series data - and they’re looking for a Senior Data Scientist to … from research to deployment Flexible working, high autonomy, and a clear scientific mission 🚀 What they value: Curiosity and rigour in tackling complex scientific challenges A passion for transforming noisy data into meaningful insight Strong collaboration across technical and scientific disciplines A mindset focused on reproducibility, clarity, and impact They’re open to a range of ML and scientific backgrounds More ❯

Areti is currently seeking five Senior Data Scientists/Analysts to join one of the UK’s fastest-growing Series A-funded tech startups based in London . This is an exciting opportunity to be part of a dynamic, mission-driven company working on high-impact Defence and Government projects. Extensive training provided – including Palantir – making this a … career-defining role . 🌳🌳🌳 The Role: 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 Ideal Candidate Will Have: Previous experience … as a Data Scientist or Data Engineer Strong command of Python (including libraries such as scikit-learn, NumPy, matplotlib) Experience in deep learning frameworks such as TensorFlow or PyTorch Knowledge of SQL and relational databases; experience with Big Data environments Familiarity with API development and NoSQL databases Understanding of CI/CD practices , AWS , and GIT More ❯