Jack & Jill
Data Scientist / Senior Data Scientist at Sparkbox

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Job Title
Data Scientist / Senior Data Scientist
Salary
Not Disclosed
Company Description
Sparkbox.ai is a venture-backed London retail tech company recognized by Forbes and Tech Nation for building AI-driven inventory and pricing optimization tools for global brands like New Balance and River Island.
Job Description
You will develop the machine learning models powering demand forecasting and pricing optimization for global retail brands. Working alongside the Principal Data Scientist, you will own the full model lifecycle—from design and testing to production deployment on GCP—ensuring solutions are scalable, robust, and deliver actionable commercial insights.
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Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
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Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
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London, UK
Why this role is remarkable
- Work on real-world ML problems that directly impact margins and sustainability for major global retailers like River Island and New Balance.
- Join a high-growth, venture-backed startup recognized by Forbes and Tech Nation as one of the UK’s most innovative early-stage tech companies.
- Experience a high level of ownership, seeing your models move from development to production deployment quickly within a lean, expert team.
What You Will Do
- Design and improve predictive ML models for price optimization and demand forecasting using Python and cloud-based infrastructure.
- Build end-to-end production solutions following strict software engineering practices, including unit testing, Git best practices, and object-oriented programming.
- Analyze complex retail datasets to uncover actionable insights that inform product strategy and commercial decision-making for enterprise clients.


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The ideal candidate
- Proven experience applying predictive machine learning to real-world problems with production-quality Python code using scikit-learn and pandas.
- Hands-on expertise deploying and maintaining ML models in cloud environments, specifically GCP or similar platforms.
- Strong software engineering foundations, including unit testing and the ability to write clean, scalable code beyond simple notebooks.
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