Senior (Lead) Data Scientist

We are looking for a Senior (Lead) Data Scientist to join our Helsinki team. Depending on experience, this role may be filled at a Senior or a Lead Data Scientist level.

About the role

At Sievo, data is everything. We have visibility into more than 2% of global GDP in spend - a breadth and depth of real-world procurement data that very few datasets anywhere can match. Making sense of a dataset at that scale, reliably and safely, is fundamentally a data science problem, and that is why this role is essential to how we create value.

As a Senior (Lead) Data Scientist, you will own the analytical and scientific methods that turn that data into trustworthy, productized insight. You will develop statistically robust benchmarks, indexes, models, and insights from large, complex datasets, and prove that those outputs create measurable customer value. Where outputs are anonymized or aggregated, that is a property of what you ship - not a limit on the data you get to work with.

This role sits at the intersection of data science, product development, and procurement domain expertise. You'll work closely with Product Managers, Data Engineers, AI/ML teams, and customer-facing teams to turn analytical prototypes into scalable product capabilities.

At the Lead level, you will also help build and ramp up Sievo's data science capability across the company. This is not a from-zero effort - there is an emerging practice to mature: you'll set scientific direction and standards, mentor technical contributors, extend data science influence across teams, and represent Sievo's analytical credibility in customer and executive discussions.

What you'll doDevelop statistical and machine-learning methods that turn large, complex datasets into trustworthy insight - benchmarks, indexes, supplier and opportunity indicators, predictive models, and executive-facing analytics

Define success metrics and experimentation plans for new data products, and measure whether customers actually use and