Data Scientist

Oscar Technology
London, United Kingdom
3 weeks ago
£65,000 – £75,000 pa
Applications closed

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Relation Therapeutics London, United Kingdom
On-site

Salary

£65,000 – £75,000 pa

Job Type
Permanent
Work Pattern
Full-time
Work Location
Hybrid
Seniority
Mid
Education
Degree
Posted
30 Apr 2026 (3 weeks ago)

Benefits

Generous benefits package Hybrid working Opportunity to join a well-established business investing heavily in AI High-impact role with real ownership and visibility Collaborative and forward-thinking data team

Data Scientist

Location: London (Hybrid - 2-3 days on-site)
Salary: £65,000-£75,000 + benefits

The Role

We are working with a well-established financial services organisation undergoing a significant investment in its data and AI capabilities.

They are looking for a hands-on Generative AI Data Scientist to help drive the development and deployment of GenAI solutions across the business. This role is focused on practical application - building and scaling real-world use cases rather than purely research-led initiatives.

You will work on a variety of projects, including intelligent automation, document processing, internal copilots, and customer-facing AI tools, leveraging large language models and modern machine learning techniques.

While the organisation operates in a regulated environment, they are open to candidates from a range of industry backgrounds, financial services experience is beneficial but not essential.

Key Responsibilities
  • Design, build, and deploy Generative AI solutions using large language models (LLMs)
  • Develop and optimise prompt engineering strategies for production use cases
  • Build end-to-end pipelines (RAG, embeddings, vector search) for scalable GenAI applications
  • Work with both structured and unstructured datasets, including text-heavy data
  • Collaborate closely with data engineering and software teams to productionise solutions
  • Identify high-impact use cases and contribute to the broader AI roadmap
  • Ensure solutions align with governance, risk, and compliance standards
  • Communicate insights and outputs clearly to both technical and non-technical stakeholders
Required Skills & Experience
  • 3+ years' experience in Data Science / Machine Learning roles
  • Strong Python and SQL skills with hands-on experience building models and data pipelines
  • Proven experience working with Generative AI (LLMs, prompt engineering, embeddings)
  • Experience using frameworks such as LangChain, LlamaIndex, or similar
  • Experience integrating with model APIs (e.g. OpenAI or open-source alternatives)
  • Exposure to cloud environments (AWS, GCP or Azure)
  • Strong problem-solving skills and a pragmatic, delivery-focused mindset
  • Ability to work in cross-functional teams within a fast-paced environment
Nice to Have
  • Experience within financial services or other regulated industries
  • Exposure to vector databases (e.g. Pinecone, Weaviate, FAISS)
  • Experience with MLOps / LLMOps and deploying models into production
  • Familiarity with LLM fine-tuning, evaluation, or guardrailing techniques
  • Experience building internal tools such as copilots or knowledge assistants
What's on Offer
  • Salary up to £75,000 depending on experience
  • Generous benefits package
  • Hybrid working (London-based)
  • Opportunity to join a well-established business investing heavily in AI
  • High-impact role with real ownership and visibility
  • Collaborative and forward-thinking data team

Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy.

To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.

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