Lead Data Scientist jobs in Belfast

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.

Job Description Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Are you looking for a career move that will put you at the heart of a global financial...

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.

Data Scientist - £70k | Remote / Hybrid | FinTech / Payments Skills, Experience, Qualifications, If you have the right match for this opportunity, then make sure to apply today. 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,...

You will help set the direction for AI and data science across the business, driving the adoption of modern AI development practices and scalable, cloud‐native architectures at enterprise scale.

You will provide technical and thought leadership, engaging with C‐level and senior stakeholders to define architectural principles and strategic direction.

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...

You will be instrumental in monitoring complex data flows, identifying bottlenecks, and implementing solutions to enhance data reliability and performance. Candidates must demonstrate expert-level experience in ETL/ELT frameworks, comprehensive data validation techniques, and scripting for complex automation purposes.

We seek an experienced Associate Director, Gen AI Architect, specialising in the Energy, Resources & Industrials (ER&I) sector, to join our AI & Data team. This role is pivotal in driving the adoption and implementation of Gen AI solutions within ER&I.Generative AI is transforming ER&I, offering unprecedented opportunities for optimization, enhanced decision-making, and new revenue streams. A...

You will drive the adoption of modern AI frameworks, AIOps best practices and scalable cloud-native architectures. Your role will involve hands-on technical leadership, collaborating with customers to translate business challenges into trustworthy AI solutions and ensuring responsible AI practices throughout.

Lead Data Scientist Ocho Belfast, Northern Ireland, United Kingdom This range is provided by Ocho. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. My client is building the intelligence layer behind a next-gen manufacturing platform and are looking for a Lead Data Scientist to take ownership of everything computer vision. This isn't a...

You will work closely with your colleagues in our Group Data Office within Technology & Innovation (T&I), and with senior managers and teams across our businesses to identify, prioritise, plan, and execute on opportunities to derive business value from data.

You will be working as part of a wider team, dedicated to using to extract actionable intelligence from data, to deliver on a client's strategy.

You will liaise with internal and client SMEs to understand the data and technology landscape, propose and design analytics and AI solutions and deliver client outcomes.

Huron is a global consultancy that collaborates with clients to drive strategic growth, ignite innovation and navigate constant change. Through a combination of strategy, expertise and creativity, we help clients accelerate operational, digital and cultural transformation, enabling the change they need to own their future. Join our team as the expert you are now and create your future. Data...

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...

A leading global consulting firm in Birmingham seeks an Associate Director, Gen AI Architect, to enhance energy, resources, and industrial sector solutions. Responsibilities include defining Gen AI architectures and leading innovative projects. Ideal candidates will possess strong consulting experience and expertise in Gen AI architecture. This role emphasizes collaboration, strategic insights,...

A leading AI solutions provider in Northern Ireland seeks a Principal Data Scientist to lead large-scale AI projects and mentor a community of data scientists. The ideal candidate will have strong technical leadership and deep AI/ML expertise, capable of engaging C-level stakeholders. Join a diverse team committed to innovation and ethical AI practices. Competitive salary and career growth...

You will lead the design and delivery of advanced AI/ML solutions that improve the functionality, scalability, and efficiency of Workday systems.

You will focus on cutting edge innovations, such as predictive analytics for workforce planning, anomaly detection in financial processes, and intelligent automation for Workday applications.

You will drive the adoption of modern AI frameworks, AIOps best practices and scalable cloud-native architectures.

You will do this whilst learning about new technologies and approaches, with talented colleagues that will help you to develop and grow.

You will manage, coach, and develop a small number of staff, with a focus on managing employee performance and assisting in their career development.