Principal Data Scientist
Principal Data Scientist

Principal Data Scientist

Bedford Full-Time 72000 - 108000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Join a team to design and build AI virtual agents for customer support.
  • Company: Innovative tech company focused on cutting-edge AI solutions.
  • Benefits: Enjoy flexible working options, competitive salary, and professional development opportunities.
  • Why this job: Be at the forefront of AI technology, making a real impact in customer interactions.
  • Qualifications: Degree in relevant field; expertise in ML algorithms and LLMs required.
  • Other info: Collaborate with diverse teams and foster creativity in a dynamic environment.

The predicted salary is between 72000 - 108000 £ per year.

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.

  • 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
  • Craft context-aware, multi-channel self-service experiences
  • Develop bespoke testing suites and LLM performance metrics
  • CI/CD for ML/LLM: automated build/train/validate/deploy pipelines for chatbots and agent services
  • IaC – Infrastructure as Code, (Terraform/CloudFormation) to provision scalable cloud for training and real-time inference
  • Observability: monitoring, drift detection, hallucination, SLOs, and alerting for model and service health
  • Serving at scale: containerised, auto-scaling (e.g., Kubernetes) with low-latency inference
  • Data & model versioning; maintain a central model registry with lineage and rollback
  • Workflow automation across the ML lifecycle (data ingestion → retraining → deployment)
  • Deliver a live performance dashboard (intent accuracy, latency, error rates) and a documented retraining strategy
  • Lead and foster creativity around frameworks/models; collaborate closely with product, engineering, and client stakeholders

Qualifications / Experience

  • Relevant primary level degree and ideally MSc or PhD
  • Proven expertise in mathematics and classical ML algorithms, plus deep knowledge of LLMs (prompting, fine-tuning, RAG/tool use, evaluation)
  • Hands-on with AWS and Azure services for data/ML (e.g., Bedrock/SageMaker, Azure OpenAI/Azure ML)
  • Strong engineering: Python, APIs, containers, Git; CI/CD (GitHub Actions/Azure DevOps), IaC (Terraform/CloudFormation)
  • Scalable Serving Infrastructure: A containerized, auto-scaling environment (e.g., using Kubernetes) to serve the chatbot model with low latency
  • Workflow Automation: Automate the end-to-end machine learning lifecycle, from data ingestion and preprocessing to model retraining and deployment
  • Live Performance Dashboard: A real-time dashboard displaying key model metrics such as intent accuracy, response latency, and error rates
  • Centralized Model Registry: A versioned repository for all trained models, their performance metrics, and associated training data
  • Documented Retraining Strategy: An automated workflow and documentation outlining the process for periodically retraining the model on new data
  • Experience with Kubernetes, inference optimisation, caching, vector stores, and model registries
  • Clear communication, stakeholder management, and a habit of writing crisp technical docs and runbooks

Personal Attributes

  • Personal Integrity, Stakeholder Management, Project Management, Agile Methodologies, Automation, Data Visualisation and Analysis.

Principal Data Scientist employer: ISx4

As a Principal Data Scientist at our innovative company, you will thrive in a dynamic work culture that champions creativity and collaboration. We offer competitive benefits, including professional development opportunities and a supportive environment that encourages continuous learning and growth. Located in a vibrant tech hub, you'll have access to cutting-edge resources and a network of like-minded professionals, making this an exceptional place to advance your career in AI and machine learning.
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Contact Detail:

ISx4 Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Principal Data Scientist

✨Tip Number 1

Familiarise yourself with the latest advancements in Gen AI and LLM technologies. Being able to discuss recent developments or case studies during your interview can demonstrate your passion and expertise in the field.

✨Tip Number 2

Showcase your hands-on experience with AWS and Azure services by preparing examples of projects where you've successfully implemented these technologies. This will help you stand out as a candidate who can hit the ground running.

✨Tip Number 3

Brush up on your knowledge of CI/CD processes, especially in relation to ML/LLM. Be ready to discuss how you've automated workflows in previous roles, as this is crucial for the position.

✨Tip Number 4

Prepare to discuss your approach to stakeholder management and communication. Highlighting your ability to collaborate effectively with product and engineering teams will show that you're a team player who can drive projects forward.

We think you need these skills to ace Principal Data Scientist

Expertise in Mathematics and Classical ML Algorithms
Deep Knowledge of LLMs (Prompting, Fine-tuning, RAG/Tool Use, Evaluation)
Hands-on Experience with AWS and Azure Services for Data/ML
Strong Engineering Skills in Python, APIs, and Containers
CI/CD Proficiency (GitHub Actions/Azure DevOps)
IaC Skills (Terraform/CloudFormation)
Experience with Containerized, Auto-scaling Environments (e.g., Kubernetes)
Workflow Automation across the ML Lifecycle
Ability to Deliver Live Performance Dashboards
Experience with Centralized Model Registries
Documented Retraining Strategy Development
Knowledge of Inference Optimisation and Caching
Experience with Vector Stores and Model Registries
Clear Communication and Stakeholder Management
Technical Documentation and Runbook Writing
Project Management and Agile Methodologies
Data Visualisation and Analysis

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights relevant experience in data science, particularly with LLMs and AI technologies. Emphasise your hands-on experience with AWS, Azure, and any specific projects that align with the job description.

Craft a Compelling Cover Letter: In your cover letter, express your passion for AI and data science. Discuss how your background in mathematics and ML algorithms makes you a strong candidate for designing and building Gen AI virtual agents.

Showcase Technical Skills: Clearly outline your technical skills related to Python, CI/CD, and containerisation. Provide examples of how you've implemented these skills in past projects, especially in relation to scalable serving infrastructure and workflow automation.

Highlight Collaboration Experience: Since the role involves working closely with product, engineering, and client stakeholders, include examples of successful collaborations in your application. This will demonstrate your ability to manage stakeholder relationships effectively.

How to prepare for a job interview at ISx4

✨Showcase Your Technical Expertise

Be prepared to discuss your hands-on experience with LLMs and classical ML algorithms. Highlight specific projects where you've implemented these technologies, especially in relation to AWS or Azure services.

✨Demonstrate Problem-Solving Skills

Expect to face scenario-based questions that assess your ability to design and build AI-powered interactions. Think through your approach to problem-solving and be ready to explain your thought process clearly.

✨Prepare for Collaboration Questions

Since the role involves working closely with product, engineering, and client stakeholders, prepare examples of how you've successfully collaborated in the past. Emphasise your communication skills and stakeholder management experience.

✨Discuss Your Approach to Continuous Improvement

Be ready to talk about how you ensure the continuous improvement of AI models. Discuss your experience with CI/CD pipelines, monitoring, and retraining strategies, and how you keep up with the latest advancements in the field.

Principal Data Scientist
ISx4

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