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Principal data scientist

Doncaster
Jr United Kingdom
Data scientist
Posted: 9h ago
Offer description

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You will be part of a team designing and building a Gen AI virtual agent to support customers and employees across multiple channels. You will build and run LLM-powered agentic experiences, owning the design, orchestration, MLOps, and continuous improvement.


Responsibilities:

* Design & build client-specific GenAI/LLM virtual agents
* Enable the orchestration, management, and execution of AI-powered interactions through purpose-built AI agents
* Design, build, and maintain robust LLM-powered processing workflows
* Develop cutting-edge testing suites related to bespoke LLM performance metrics
* Implement CI/CD pipelines for ML/LLM: automated build/train/validate/deploy for chatbots and agent services
* Use Infrastructure as Code (Terraform/CloudFormation) to provision scalable cloud resources for training and inference
* Monitor model and service health with observability practices: drift detection, hallucination, SLOs, and alerting
* Serve models at scale using containerization, auto-scaling (e.g., Kubernetes), with low-latency inference
* Maintain data and model versioning with a central registry, including lineage and rollback capabilities
* Deliver a live performance dashboard (intent accuracy, latency, error rates) and establish retraining strategies
* Collaborate with product, engineering, and client stakeholders to foster innovation around frameworks and models


Qualifications / Experience:

* Relevant primary degree, ideally MSc or PhD
* Proven expertise in mathematics, classical ML algorithms, and deep knowledge of LLMs (prompting, fine-tuning, RAG/tool use, evaluation)
* Hands-on experience with AWS and Azure ML services (e.g., Bedrock, SageMaker, Azure OpenAI, Azure ML)
* Strong engineering skills: Python, APIs, containers, Git, CI/CD (GitHub Actions, Azure DevOps), IaC (Terraform, CloudFormation)
* Experience with scalable serving infrastructure: containerized, auto-scaling environments (e.g., Kubernetes) for low-latency serving
* Workflow automation across the ML lifecycle: data ingestion, preprocessing, retraining, deployment
* Development of live performance dashboards displaying key model metrics
* Management of a centralized model registry with versioning and lineage
* Documented retraining strategies with automated workflows
* Experience with Kubernetes, inference optimization, caching, vector stores, and model registries
* Excellent communication skills, stakeholder management, and ability to produce clear technical documentation and runbooks


Personal Attributes:

* Personal integrity, stakeholder management, project management, familiarity with Agile methodologies, automation skills, data visualization and analysis capabilities


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