Data Scientist

Pontoon; Welwyn Garden City; On-site; GBP 132,000 - 192,000; Full time

Job summary

Pontoon in Welwyn Garden City is seeking a Senior Data Scientist to own end-to-end data science work, including NLP/GenAI, feature engineering from structured and unstructured data, and deployment to production.

The role blends hands-on modelling with signal-driven insights to optimise customer journeys.

Qualifications

• Proven ability to deliver end-to-end data science projects into production.
• Experience combining structured and unstructured data for modelling.
• Strong NLP and GenAI experience: text classification, summarization, embeddings.
• Advanced SQL, Python and PySpark, with software dev practices.
• Experience deploying models in Azure cloud.
• Ability to communicate complex ideas clearly to non-technical stakeholders.

Responsibilities

• Lead end-to-end data science solutions from framing to deployment.
• Perform hypothesis-driven analyses to uncover journey opportunities.
• Combine structured data with unstructured sources for robust features.
• Apply NLP and GenAI techniques for text tasks.
• Build and optimise data pipelines and model code.
• Collaborate with stakeholders to define success metrics and deliver insights.
• Mentor team through code and model reviews.

Skills

NLP

GenAI

SQL

Python

PySpark

Azure

Data modelling

Stakeholder comms

Tools

MLflow

Databricks

DBT

PyTorch

Job description

Job Advertisement: Senior Data Scientist

Location: Welwyn Garden City

Contract Type: Fixed Term Contract

Contract Length: 12 months (6+6)

Daily Rate: £550 - £800 per day Inside IR35

Working Pattern: Hybrid

About the Role:

Are you ready to take your data science career to the next level? Our client is looking for a passionate and hands-on Senior Data Scientist to join their Journey Insights team! In this exciting role, you'll work with both structured and unstructured data, unlocking insights that enhance customer journeys and operational opportunities.

What You'll Do:

• Own the Delivery: Lead end-to-end data science solutions from problem framing to deployment, ensuring your work delivers tangible results.
• Deep-Dive Analysis: Use hypothesis-driven approaches to uncover customer journey opportunities and translate findings into actionable recommendations.
• Innovative Solutions: Combine structured datasets with unstructured sources (like text and customer interaction data) to create robust features and predictive models.
• NLP & GenAI Expertise: Apply traditional NLP techniques and cutting-edge GenAI tools for text classification, summarization, entity extraction, and more.
• Data Pipelines: Build, validate, and optimise data pipelines and model code, ensuring performance and security.
• Stakeholder Collaboration: Work closely with stakeholders to define success metrics and turn complex outputs into clear, decision-ready insights.
• Mentorship: Share best practises and support your team through constructive code and model reviews.

Skills and Experience Required:

• Proven expertise in delivering end-to-end data science solutions that yield practical outcomes.
• Experience in combining structured and unstructured datasets for modelling and analysis.
• Strong background in NLP and GenAI techniques, including text classification, summarization, and embeddings.
• Advanced proficiency in SQL, Python, and PySpark, with a focus on software development best practises.
• Experience deploying data science models in a cloud environment (Azure preferred).
• Familiarity with database management (including graph databases) and integrating diverse data sources.
• Excellent communication skills, with the ability to present complex ideas in a clear, non-technical manner.

Desirable Experience:

• Knowledge of PyTorch, MLflow, DBT, and Databricks AI functions is a plus!

About Us:

Join a dynamic organisation that values human connection and places customers at the heart of everything they do. Embrace the Agile way of working, where collaboration, innovation, and adaptation are key to meeting customer needs.

Why Join Us?

Be part of a community that celebrates diversity and inclusivity.

Enjoy a blend of remote and office working, fostering creativity and collaboration.

Access a range of full-time and part-time working patterns to fit your lifestyle.

We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you