Principal Data Scientist jobs in Chester

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.

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 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 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.

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 define technical strategy, design scalable data systems, mentor senior engineers, and partner closely with product, engineering, analytics, and business leaders to transform strategic goals into robust, data-driven solutions.

About Intellias Intellias is a European-founded AI, Data and Software Development company with global delivery capability across Europe, India and Latin America. For more than 20 years, we've empowered our customers to embrace innovation at scale and contributed to the success of the world's leading brands. The company is featured in the Inc 5,000 Europe and IAOP Global Outsourcing...

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,...

Principal Grafana Network Analytics Engineer Edinburgh, UK | Fully Remote (UK-based) Engineering | Cyber Security £95,000 & Benefits Ever wanted your dashboards to actually defend the internet? This role does exactly that. I’m recruiting on behalf of a high-growth cyber security technology company that protects some of the world’s most critical online services from large-scale DDoS and...

Analytical Scientist12-month temporary roleMonday to Friday; Full-timeThornton Science ParkAnalytical Scientist Main Purpose:To plan, execute and interpret experimental work to support analysis and method development/validation for new materials. Provide analytical support to growth F&EM projects.Analytical Scientist Roles and Responsibilities: * Execute routine analysis of materials in support...

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...

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 report into the Head of Platform Engineering and work closely with data scientists, analysts, engineers, and design managers in a fast-paced, high-impact environment. What You’ll Be Doing - Operationalising machine learning models and ensuring they are production-ready

.Net / Blazor Developer, Fully Remote, £60,000 - £85,000 per annum About the Role: Our client, a leading AI solutions consultancy are seeking a highly skilled Blazor Developer to join their team. As a Blazor Developer, you will play a critical role in creating and optimising web applications built on the Blazor framework. Your expertise in development will help their clients bring their...

You will support the assessment and development of new technologies emerging from defence and security research. Working alongside experienced colleagues, you’ll help evaluate market opportunities, prepare commercial documentation and support licensing and early spin-out activities.

This role is the programme’s data-driven applications engineer - sitting between Oracle APEX development, analytics engineering, and data science enablement. It focuses on delivering reporting, dashboards, lightweight applications, and analytical PoCs on top of the client’s Oracle cloud estate (ADW, OAC, Fusion, OIC). Key Responsibilities - Develop, enhance and maintain secure APEX applications...

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.

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 report into the Head of Platform Engineering and work closely with data scientists, analysts, engineers, and design managers in a fast-paced, high-impact environment.

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.