Principal Data Scientist, Faculty

🔒 Confidential Employer
Posted 28 April 2026
LOCATION
London
TYPE
Full-time
LEVEL
Director
SALARY
£140,000 / year
CATEGORY
Artificial Intelligence
This employer holds a UK Home Office sponsor license — sponsorship for this specific role is at the employer’s discretion

SKILLS

Python Machine Learning Generative AI Large Language Models Data Science Technical Leadership Problem-solving Mentoring

FULL DESCRIPTION

Principal Data Scientist, [Employer hidden — view at passion-project.co.uk]

Company: [Employer hidden]

Location: London

Work Type: Hybrid

Job Type: Full-time

Experience Level: Director

Salary: £60k-£140k

About the Role

As a Principal Data Scientist at [Employer hidden], you will serve as a technical leader and domain expert who owns and drives the delivery of the most technically complex, high-impact projects and programmes for our most important clients. You also will set the technical direction for the data science team, mentor, and develop them so our data scientists remain best in class. This position focuses on deep individual contribution and technical excellence, influencing the broader data science community at [Employer hidden].

What the job involves

  • Serving as a technical authority on machine learning, Generative AI, and other advanced data science methods to deliver innovative and impactful solutions
  • Leading the development of shared resources, frameworks, and best practices adopted across teams and the company
  • Contributing to the scoping and bid processes for large-scale, high-stakes projects, influencing client decisions with technical expertise
  • Owning a portfolio of work within a specific sector, applying expert knowledge to deliver exceptional value to clients
  • Leading and mentoring project teams and direct reports, ensuring the successful delivery of high-value and complex projects
  • Acting as a thought leader, publishing papers, and presenting at industry and scientific conferences to amplify a distinctive AI vision for our clients

We are open to conversations about part-time hours

Who you are

  • You bring demonstrable technical ability, creativity and flexibility from your extensive experience (in academia , industry or both) as thought leader in this space
  • You’ll have prior experience working in or for financial services clients, with standout examples where you’ve led the delivery of distinctive applications that have driven commercial impact
  • You bring broad knowledge across a range of machine learning techniques, including experience building Generative AI and agentic AI applications with Large Language Models
  • You have advanced coding skills in Python and proven experience building and maintaining scalable codebases
  • You enjoy mentoring junior colleagues and have prior direct management experience, inspiring them to continually stretch and grow their technical skill
  • You are highly proficient in strategic problem-solving and communicating solutions to non-technical audiences, able to select appropriate solutions and balance innovation with practical implementation

If you don’t feel you meet all the requirements, but are excited by the role and know you bring some key strengths, please don't hesitate in applying as you might be right for this role, or other roles

Application process

Talent Team Screen (30 minutes)

Introduction to Business Unit Director (30 minutes)

Take Home Technical Assessment

Technical Interview (90 minutes)

Commercial & Principles Interview (90 minutes)

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