data research scientist jobs in Cardiff

Performance Data Scientist Department - Sport System Institute Services Salary - £41,574.01 (pro rata - £25,281.49) Working Hours - 3 days per week (22.5 hours) 12 months fixed term contract Location - Sport Wales National Centre, Cardiff Closing Date - 6th February 2026 9am Provisional Interview Date - 19th February 2026 Please go to our website to view the full advert and job description and...

You will work across a variety of complex analytical problems, owning experimentation end-to-end—even when ideal conditions such as user randomisation or high statistical power are not present.

You will work on real production problems rather than research-only work, owning models from first iteration through to live deployment.

You will collaborate closely with other data scientists, data engineers, and DevOps, with the freedom to shape how GenAI and ML are used across the platform.

You will work on modernizing authentication and login experiences across multiple consumer applications, helping drive growth through high-quality user experience, experimentation, and data-driven decision making. This is a collaborative role, working closely with engineers, product managers, and cross-functional partners in a fast-paced environment.

You will design and build the systems that identify the signals that matter most for visibility, the retrieval and embedding architecture that feeds the models, the ranking and scoring framework that prioritises actions and the evaluation layer that measures how different LLMs behave across queries, surfaces and contexts.

Data Scientist - £70k | Remote / Hybrid | FinTech / Payments We’re working with an established FinTech / Payments business that has been helping customers manage and move money globally for many years. The company builds technology-led products that support low-cost, multi-currency payments and money management, operating across several regulated markets. They’re now investing further in their...

With Intelligence is now a part of S&P Global, creating one of the most comprehensive data offerings for alternatives and private markets participants. We are now part of a larger organisation with more than 35,000 staff worldwide, so we're able to understand nuances while having a broad perspective. From helping our customers assess new investments across the capital and commodities markets to...

You should apply if: What we’re doing here at Monzo excites you!

You will have the chance to speak to our recruitment team at various points during your process but if you do have any specific questions or want to talk through reasonable adjustments ahead of or during application please us at any point on tech-hiring@monzo.

You will have built an optimization model using MILPs, heuristics, decomposition, or other methods (big focus on linear optimization, not so much on non-linear). In terms of skills you should have strong working experience with optimization solvers (e.g. Gurobi, Cplex, FICO Xpress optimization or other).

About Princeton Biopartners: Princeton Biopartners is a leading provider of integrated consulting solutions to the life sciences sector. Our mission is to improve the evidence base, accessibility, and dissemination of biomedical innovations through strategic advisory, software development, and venture funding. We partner with leading pharmaceutical, biotechnology, and healthcare organizations to...

You will help shape how devices are assessed and qualified for use in space, drawing on existing data, modelling, and targeted testing where appropriate. - This role suits a physicist or engineer with research experience and strong technical writing skills, who wants to move into applied space work.

Reports to: Technology Director / Executive Sponsor Location: Remote with occasional travel to London (2 times a month) Contract: Full-time, permanent Base Salary: £70,000 – £80,000 location and experience dependent + 10% company bonus scheme and sales commission scheme Why This Role Exists Serve Legal is entering a new chapter: evolving beyond compliance auditing into AI enabled,...

A prominent research institution is seeking experienced Research Software Engineers to support university research, focusing on areas such as data science, AI, and scientific software engineering. Successful candidates will collaborate with academics and develop reproducible software, requiring substantial skills in Linux software development and programing. The role offers a competitive salary...

Contract MLOps Engineer | MLflow | Databricks | Production ML Duration: Initially 3 months Day rate: £500 - £550, Inside IR35 Workplace: Remote, with occasional travel to client-site Inara are supporting a consultancy-led team delivering production-grade machine learning platforms for a range of end clients, and they’re looking for a senior, hands-on Contract MLOps Engineer to help take ML...

You will be responsible for translating complex clinical and real-world data capabilities into clear, scalable, market-ready products that directly address high-impact industry challenges. As a senior leader, you’ll work closely with data science, engineering, and commercial teams to shape solution roadmaps, support major client engagements, and help drive global adoption.

Global University Systems is building a modern AI platform to power how our universities recruit, teach, support, and serve students. The Director of AI will lead this transformation, turning promising ideas into production-grade AI solutions that create real value for students and staff. This role owns the AI roadmap end-to-end: from identifying high-impact use cases, to running rapid...

Machine Learning Engineer - Contract (Financial Services, Outside IR35) Duration: 6 months Rate: £650 - £750 per day IR35: Outside Location: UK / Remote We’re seeking an experienced Machine Learning Engineer to support a Financial Services organisation on an initial 6-month contract, working on production-grade ML systems that operate in regulated, high-volume environments. This role is...

You will design and deliver intelligent agentic workflows, leveraging frontier LLMs. Working with their data scientists and backend engineers, you’ll be responsible for making unstructured legal data usable, scalable, and impactful. This is not a prototyping role — you’ll ship well-engineered, production-ready systems that directly impact customers.

With Intelligence is a data and information business specialising in the asset management sector. We are seeking a French-speaking Data Researcher to join our Cardiff research centre. The successful candidate will be responsible for collecting and maintaining accurate data on institutional investors through the analysis of annual reports, specialist documents, and relationship building. This role...

With Intelligence is a data information business specialising in the asset management sector. We are seeking a dynamic Data Researcher to join the Cardiff research centre. The successful candidate will be responsible for collecting and maintaining accurate data pertaining to institutional investors, through the analysis of annual reports, other specialist documents, and relationship building....