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Lead Data Scientist

Summary

The Lead Data Scientist oversees end-to-end ML/data science projects, ensuring scalable, production-ready solutions aligned with business goals. Core work includes technical leadership, model deployment, standards enforcement, and mentoring across Python/SQL, cloud platforms (AWS/GCP/Azure), and ML techniques like time-series forecasting.

This role exists to provide technical leadership and assurance across data science, ensuring machine learning solutions are designed, built, and operated to a high and consistent technical standard. The role focuses on enabling scalable, reliable delivery of data science solutions aligned to business priorities defined elsewhere.

WHAT YOU'LL BE DOING:

  • Acting as a technical lead for data science, guiding modelling approach and solution design across multiple initiatives.
  • Working closely with business stakeholders to translate priority use cases into technically sound, productionready data science solutions.
  • Providing handson technical leadership across the data science lifecycle, from problem framing and modelling through deployment and ongoing optimisation.
  • Defining and embedding technical standards and best practices for experimentation, validation, documentation, and reproducibility.
  • Reviewing and challenging technical designs and implementations, providing clear technical direction and signoff.
  • Supporting and mentoring data scientists on complex technical challenges.
  • Partnering with Data Architecture, ML & Data Engineering, and BI teams to ensure solutions are scalable, robust, and productionready.
  • Evaluating new techniques and tools, guiding their pragmatic adoption.
  • Communicating technical assumptions, risks, and tradeoffs clearly to technical and nontechnical stakeholders.

Accountable for:

  • The technical quality and consistency of data science solutions delivered within assigned domains.
  • Ensuring solutions meet agreed performance, scalability, reliability, and maintainability standards.
  • Consistent application of data science standards, reducing delivery risk and technical debt.
  • Providing ongoing technical assurance that solutions remain fit for production as usage and complexity increase.
  • Maintaining strong technical partnerships with stakeholders as a trusted advisor.
  • Raising the overall technical maturity of data science within the organisation

WHAT YOU'LL NEED:

Essential Criteria:

  • Extensive experience delivering productiongrade, commercially impactful data science solutions, gained in a data science or machine learning roles.
  • Proven experience operating as a senior technical lead, reviewer, or technical signoff authority.
  • Strong experience building ML solutions on cloud platforms (GCP, AWS, or Azure).
  • Advanced expertise in Python and SQL.
  • Deep applied knowledge of machine learning techniques, including regression, classification, clustering, and timeseries forecasting.
  • Experience supporting production deployment and lifecycle management of ML models.
  • Strong understanding of data warehousing, data modelling, and modern data architecture.
  • Excellent communication skills, able to explain technical decisions clearly to nontechnical stakeholders.

Preferred Skills:

  • Experience with recommender systems or personalisation use cases.
  • Familiarity with MLOps concepts and production ML practices.
  • Demonstrated ability to raise technical standards through influence rather than authority.
  • Experience in an ecommerce or retail environment.

CLOSING DATE: 14th August

What this application asks

greenhouse

First Name, Last Name, Email, Phone, Resume/CV

  • Are you a current Gymshark employee? choose one
  • Have you advised either your Manager or People Partner that you are applying for this role? choose one
  • Do you have any skills or knowledge gaps? If so, what support will you need to do this job successfully? written answer
  • What are your salary expectation for this role? optional

See also