Level

Ocado Group

Data Scientist

Ocado Group is hiring a Data Scientist in London, United Kingdom. Level rates it ; you can apply on Level.

AI in this role

tensorflowkeras
ai-research

Data Scientist | Logistics & Fulfilment | Hybrid Working | London

Introduction: 

We are Ocado Group, and we're bringing world-class automation to online grocery. Our Ocado Smart Platform (OSP) combines cutting-edge robotics, AI, and IoT within our advanced CFCs (Customer Fulfilment Centres). We've mastered the single pick, transforming online delivery for our global partners. Join us and be part of a team pushing the boundaries of retail technology.

About the Role 

As a Data Scientist in our Treefrogs team, you will play a key role in powering the machine learning algorithms behind Ocado Group’s Logistics and Supply Chain technology. Our mission-critical models drive key operational decisions for global partners, including demand forecasting, drive-time predictions, and supplier reliability. In this role, you will own the full data science lifecycle, from researching state-of-the-art deep learning techniques to deploying, scaling, and supporting production-ready models.

Working closely with cross-functional software engineering, data engineering, and product teams, you will tackle high-impact problems where algorithm performance directly affects operational efficiency and partner revenue. You will continuously refine existing architectures, build robust data pipelines, and explore new applications for machine learning, ensuring our systems remain reliable, scalable, and cutting-edge.

Key Responsibilities

  • Improve existing model architectures and adapt them to solve new operational challenges and support global partner expansions.
  • Design and build scalable data pipelines to feed richer, high-quality data into machine learning models.
  • Own, support, and maintain machine learning models in production environments, ensuring high availability and performance.
  • Collaborate with Product teams to identify, define, and build new machine learning applications across our stream.
  • Work alongside Software Engineering teams to design robust interfaces between machine learning models and broader software systems.
  • Communicate complex technical findings and model performance clearly to both internal and external stakeholders.
  • Promote and uphold best practices in machine learning development, testing, and continuous deployment.
  • Stay up to date with the latest machine learning research to identify and implement innovative techniques.

What We’re Looking For

Essential

  • Strong programming proficiency in Python and solid knowledge of SQL.
  • Practical experience working with Google Cloud Platform (GCP).
  • Familiarity with Tensorflow, Keras or similar deep learning frameworks
  • Either 2+ years of data science experience with an emphasis on productionising models, OR 2+ years in a software/data engineering role with formal study in machine learning.
  • Good comprehension of fundamental machine learning concepts.
  • Familiarity with modern software development processes, including code reviews, CI/CD, testing, and documentation.
  • Ability to document and explain technical concepts clearly to non-technical audiences.

Nice to Haves

  • Knowledge of time-series modelling techniques, particularly transformers.
  • Experience working with geospatial data and geospatial modelling techniques.

Benefits 

We believe in supporting our people with meaningful, flexible benefits that prioritise well-being and work-life balance. Here’s a snapshot of what you can expect:

  • Time to recharge: 25 days annual leave (rising to 27 after 5 years), plus the option to buy more – and 30 days a year to work from anywhere in the world.
  • Health & wellbeing: Private Medical Insurance from your first month, wellbeing support through specialist apps and EAP, plus Income Protection and Life Assurance.
  • Family-first policies: 22 weeks paid maternity/primary carer leave and 6 weeks paid paternity leave
  • Financial support: Pension with employer matching up to 7%, share schemes (Sharesave & BAYE), and interest-free loans for train tickets.
  • Commuter perks: Cycle to Work Scheme and free shuttle buses to/from Hatfield and Welwyn Garden City stations.
  • Exclusive discounts: 15% off at Ocado.com with free delivery (starting in your first month).

Be bold, be unique, be brilliant, be you. We are looking for individuality and we value diversity. We are an equal opportunities employer and we are committed to treating all applicants and employees fairly and equally. We are committed to making reasonable adjustments to provide a positive, barrier-free recruitment process and supportive work environment. If you have any support or access requirements, we encourage you to advise us at the time of application.

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How we rate this

Data Scientist at Ocado Group rates 86 out of 100 for how much of the daily work is AI. That makes it Builds AI (AI Level 4 of 4). The level is about AI in the job, not seniority.

Classification

Builds AI. The job is building AI systems.

  1. ●●●● Builds AI80 to 100
  2. ●●●○ Works on AI60 to 79
  3. ●●○○ Uses AI40 to 59
  4. ●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Open the description and count.

Prepare for this job

A free preview built only from this posting: what it asks for, what you could be asked in an interview, and how to adjust your resume.

Skills and AI tools this role asks for

AI ResearchTensorFlowKeras

Questions you could be asked

  1. Tell me about a research question you investigated. What did you find?
  2. Walk me through how you've used TensorFlow in your day-to-day work.
  3. What are the limits of Keras that you've run into, and how did you work around them?
  4. How would you decide a model or AI system is ready to ship?
  5. Tell me about a time a model underperformed in production. How did you find out, and what did you change?

Adapt your resume

  • List these exact terms on your resume: AI Research, TensorFlow, and Keras. An applicant tracking system matches the wording, not the idea.
  • Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.
  • Lead with what you built, trained or shipped. This role is judged on the AI system itself, not the tools around it.

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