Lead Data Scientist jobs in Cardiff

Performance Data Scientist If you think you are the right match for the following opportunity, apply after reading the complete description. 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...

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.

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...

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.

A major media corporation is seeking a Principal Data Scientist to join their Content Creation AI team. The successful candidate will work closely with journalists and editors, using data science to enhance content production and curation. This role requires proficiency in Python, a deep understanding of machine learning techniques, and the ability to work effectively in a cross-functional team....

THE OPPORTUNITY: Lead RevOps Strategist & Platform Specialist, Data Center (remote role UK or Spain) Job Summary: Iron Mountain is seeking a highly experienced, proactive, and strategic Lead RevOps Strategist & Platform Specialist to join our IMDC Global Services team in the UK or Spain (remote role). The Lead RevOps Strategist & Platform Specialist will serve as the pivotal link between our...

Job DescriptionWere looking for a Lead Data Architect to join our Technology Strategy and Architecture practice.This is a strategic role that deals with data holistically across an organisation. Lead Data Architects drive digital transformation from a data perspective, supporting clients to define the vision for data in their organisation. Lead Data Architects ensure that data is managed properly...

You will play a key role in the successful delivery of major multidisciplinary development projects, driving technical excellence and supporting digital innovation.

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.

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,...

Job Description The Audit Data Analytics Senior Manager role in Cardiff is an excellent opportunity to lead and enhance data-driven auditing processes for a Top-20 accountancy firm. This position requires expertise in accounting and finance, with a focus on leveraging data analytics to deliver effective solutions. Client Details The company is a well-established organisation within the UK...

About the job We are currently on behalf of a leading global AI & language technology company, confidentially looking for an English LLM Data Annotator/Evaluator Commitment: 20+ hours/week Location: Remote – United Kingdom Employment Type: Part-Time/Full-Time | Contract Application Process - Submit your resume to express interest. - Complete the short information form...

Note - role reposted after re-evaluation of grade level. About Colt Data Centre Services Colt Data Centre Services (DCS) has over 20 years’ experience in designing, building and operating energy-efficient, reliable data centres – hosting significant financial, media, corporate and cloud wholesale providers across the world. Our customers are at the heart of everything we do. We endeavour to...

Enterprise Account Executive – Data, AI, Analytics, Visualisation, Benelux, Sales, Account Management, C-Level, Tech, Business Development, Hunting, Closing FULLY REMOTE - £120k (+£120k OTE uncapped) + Benefits This is an exceptional permanent Enterprise Account Executive to join a leading tech organisation. The Enterprise Account Executive is fully Remote (you must be based in either UK or...

You will be responsible for building and executing a new business sales strategy, selling Microsoft Data & AI consulting services into enterprise and mid-market customers across FSI, Retail, Private Sector and MSP-led accounts. Key Responsibilities - Own and drive net-new logo acquisition across Data, Analytics, AI and Modern Data Platform services

About the job Take the next step in your career now, scroll down to read the full role description and make your application. We are currently on behalf of a leading global AI & language technology company, confidentially looking for an English LLM Data Annotator/Evaluator Commitment: 20+ hours/week Location: Remote – United Kingdom Employment Type: Part-Time/Full-Time |...

Senior Data Engineer Job Title: Senior Data Engineer Salary Range: £80,000–£100,000 Location / Working model: London | Hybrid This is a critical technical position within a high-growth, forward-thinking organization that specializes in digital innovation. We require an experienced Senior Data Engineer to design, build, and maintain a robust, scalable, and high-performance system that is...

Senior Data Engineer | Remote (UK or Europe) A leading prop trading firm is hiring a Senior Data Engineer to take ownership of their trading and market data infrastructure. Operating globally with connectivity to dozens of exchanges, the firm executes millions of trades daily with data playing a mission-critical role in every aspect of the business. This is a high-impact, high-autonomy role in...

You will bring significant experience of being an effective contributor in a cross‐functional team and communicating with external stakeholders.

You will collaborate closely with user researchers and product to identify opportunities for where AI can be used, using your extensive knowledge of AI.

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...