Lead Data Scientist

  • Faculty
  • 15/07/2026
Full time Information Technology Telecommunications Data Scientist

Job Description

About the team

The Defence team builds human centred AI solutions for high stakes defence customers. You will need to be eligible for UK Security Clearance (SC) and be willing to work between two to four days per week on site across the UK. When not on customer sites you may work from our London office or remotely within the UK.

About the role

As a Lead Data Scientist, you will set the technical direction and ensure high quality, scalable delivery of challenging, high impact projects. You will combine deep machine learning expertise with strategic oversight, define project roadmaps, manage technical risk, mentor cross functional teams, and shape technical standards and long term customer relationships.

What you'll be doing
  • Setting the technical direction for complex, business critical projects and balancing trade offs between speed, innovation, and reliability.

  • Designing and implementing reliable, production grade technical solutions with comprehensive documentation of architectures and specifications.

  • Defining project problems, developing clear roadmaps, and overseeing end to end delivery across multidisciplinary workstreams.

  • Leading technical scoping and feasibility studies for high value sales opportunities and strategic customer engagements.

  • Managing relationships and communications with demanding clients, fostering trust and aligning technical solutions with shared long term commercial goals.

  • Driving the adoption of best practices, shared resources, and robust technical processes across the wider Data Science craft.

  • Mentoring and developing other data scientists and team members, contributing to growth and technical excellence of the organisation.

Who we're looking for
  • You bring depth of expertise in at least one machine learning domain and strong technical breadth across the entire data science landscape.

  • You are a skilled technical leader, proficient in mentoring individuals, managing teams (including other managers), and rolling out impactful tools and workflows.

  • You have proven project management expertise, capable of breaking complex, ill defined problems into actionable, clearly defined workstreams with defensible timelines.

  • You are adept at managing ill defined, high risk tasks and consistently delivering innovative and practical outcomes under commercial pressure.

  • You possess strong customer leadership skills, acting as a trusted technical advisor and driving long term strategic relationships with demanding clients.

  • You excel at cross functional collaboration, effectively aligning technical strategy with Engineering, Commercial (BD), and Infrastructure teams.

  • You have experience extending technical oversight to business unit level initiatives, using your vision to influence and contribute to organisational success.

Benefits
  • Unlimited annual leave policy

  • Private healthcare and dental

  • Enhanced parental leave

  • Family friendly flexibility & flexible working

  • Sanctus Coaching

  • Hybrid working

We strongly encourage applications from people of all backgrounds, ethnicities, genders, religions and sexual orientations. All qualified applicants are encouraged to apply.