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Applied Scientist

Remote, UK · Full time


Who we are


We’re building an analysis engine that helps organisations discover what is happening and why. It makes use of the evidence conventional data systems miss – from large internal text datasets to signals spread across many external sources. Our architecture combines comparative statistical inference and causal frameworks with machine learning and large language models, ensuring stable interpretation and consistent quality at scale.

We’re backed by a specialist AI venture fund, as well as receiving EU deep-tech funding. Our team’s previous research has been cited over 35,000 times and has previously informed government and industry decision-making. We’re now working with teams across government, pharma, and other large organisations, scaling our first deployments and building the scientific foundation for what comes next.

For too long, organisations have settled for a shallow, lagged view of the dynamics they care about. We’re changing that, helping teams uncover the drivers that matter and build understanding that improves over time. This is a hard, meaningful problem – come help us solve it.

What we’re looking for


We’re hiring an Applied Scientist to invent, validate and implement methods for working out what drives outcomes from unstructured evidence. You’ll explore the frontier between statistical and causal inference and large language models – designing experiments, prototyping pipelines, and collaborating with engineers to bring your best ideas into production quickly.

You’ll work directly with our CTO – a mathematician with deep experience of turning complex data into real-world impact – and collaborate with enterprise clients to ensure our analysis is rigorous, scalable, and relevant to decision-makers. As one of our early hires, you’ll help shape Wholesum’s methodology, culture, and future.

About you

You’re excited by the challenge of understanding cause and effect in messy, real-world data, and have a strong background spanning statistical inference, causal inference and machine learning.

You’re excellent at pushing methodological boundaries and rapidly turning insights into well-designed Python pipelines.

You spend a lot of your time innovating with LLMs, moving beyond basic tools, and enjoy working out where models fail and why.

You have substantial experience evaluating and benchmarking statistical, ML and/or AI outputs.

Bonus points for...

Experience producing analysis that informed real decisions under scrutiny and time pressure.

Interest in human judgement, behaviour and decision-making.

Understanding of common data collection and sampling methods.

Experience building in early-stage or startup environments.

Our recruitment process

  1. Short application form (see below)
  2. Intro call
  3. Analysis task
  4. Deep dive with the founders
  5. Reference checks

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