Principal Data Scientist
Principal Data Scientist

Principal Data Scientist

Crawley Full-Time 72000 - 100000 £ / year (est.) No home office possible
I

At a Glance

  • Tasks: Join a team to design and build cutting-edge Gen AI virtual agents for diverse customer interactions.
  • Company: Be part of an innovative company at the forefront of AI technology and customer experience.
  • Benefits: Enjoy flexible working options, competitive salary, and opportunities for professional growth.
  • Why this job: Work on exciting projects that shape the future of AI while collaborating with creative minds.
  • Qualifications: A relevant degree is essential; MSc or PhD preferred, along with strong ML and engineering skills.
  • Other info: Ideal for tech enthusiasts eager to make an impact in the AI landscape.

The predicted salary is between 72000 - 100000 £ 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.
I

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 LLMs. Understanding the nuances of prompting, fine-tuning, and evaluation will give you a significant edge during discussions with our team.

✨Tip Number 2

Showcase your hands-on experience with AWS and Azure services. Be prepared to discuss specific projects where you've utilised tools like SageMaker or Azure ML, as this will demonstrate your practical knowledge.

✨Tip Number 3

Brush up on your Python and containerisation skills, especially with Kubernetes. Being able to articulate how you've implemented CI/CD pipelines or automated workflows will highlight your engineering capabilities.

✨Tip Number 4

Prepare to discuss your approach to monitoring and observability in ML models. Having examples of how you've handled drift detection or performance metrics will show your proactive mindset towards model health.

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
Proficiency in CI/CD Tools (GitHub Actions/Azure DevOps)
Experience with Infrastructure as Code (Terraform/CloudFormation)
Knowledge of Scalable Serving Infrastructure (Kubernetes)
Workflow Automation across the ML Lifecycle
Ability to Develop Live Performance Dashboards
Experience with Centralized Model Registries
Documented Retraining Strategy Development
Familiarity with Inference Optimisation and Caching
Clear Communication and Stakeholder Management Skills
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, APIs, CI/CD, and containerisation. Provide examples of how you've used these skills in previous roles, especially in relation to scalable serving infrastructure and workflow automation.

Highlight Collaboration Experience: Mention any experience you have working closely with product, engineering, and client stakeholders. This role requires strong communication and stakeholder management skills, so provide examples of successful collaborations.

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 scenario-based questions that assess your ability to design and build AI-powered interactions. Think of examples where you've tackled complex problems and how you approached them using data-driven solutions.

✨Communicate Clearly and Effectively

Since the role involves stakeholder management, practice articulating your thoughts clearly. Be ready to explain technical concepts in a way that non-technical stakeholders can understand, showcasing your communication skills.

✨Prepare for Collaborative Discussions

The job requires close collaboration with product and engineering teams. Be ready to discuss how you've worked in cross-functional teams before, and share examples of how you fostered creativity and innovation in those settings.

Principal Data Scientist
ISx4

Land your dream job quicker with Premium

You’re marked as a top applicant with our partner companies
Individual CV and cover letter feedback including tailoring to specific job roles
Be among the first applications for new jobs with our AI application
1:1 support and career advice from our career coaches
Go Premium

Money-back if you don't land a job in 6-months

I
Similar positions in other companies
UK’s top job board for Gen Z
discover-jobs-cta
Discover now
>