Founding Data Scientist (AI)

Location: Berlin, Germany; on-site

Company

hirify.global is a profitable, high-growth startup building a marketing platform that rewards more than 80 million users for engaging with advertisers’ products.

What you will do

• Own incrementality testing across marketing, product, and rewards, from hypothesis development through business impact measurement.
• Build data pipelines and the measurement stack connecting experiments to user behaviour, monetisation, and multi-touch attribution.
• Define and lead experimentation strategy across growth and product, designing, running, and interpreting causally rigorous tests.
• Own data products end-to-end, including scoping, architecture, implementation, and rollout.
• Partner with C-level, engineering, and business stakeholders to turn measurement into operational decisions.
• Establish scalable frameworks and practices for the team.

Requirements

• Deep practical expertise in causal inference and experimental design in real business contexts.
• Hands-on experience building and operationalising attribution models, including making them useful in production.
• Proven zero-to-one experience solving ambiguous problems and shipping production-ready infrastructure.
• Proficiency in Python and SQL; familiarity with GCP and modern data stack tools such as dbt.
• Strong ownership, pragmatic analytical judgement, and the ability to communicate model outputs to non-technical stakeholders.
• Willingness to work on-site from the central Berlin office.

Nice to have

• Experience with programmatic advertising, ML pricing, or mobile measurement, including MMPs or probabilistic attribution.
• Familiarity with AI and LLM tooling for data workflows, analysis, measurement, or personalisation.

Culture & Benefits

• Competitive package with meaningful equity.
• Company-defining projects with significant ownership and impact.
• Opportunity to join a profitable, high-growth startup at an early stage.
• Central Berlin office with transport subsidy, breakfasts and lunches, language learning, and Urban Sports Club.
• Equal opportunity workplace with a focus on diversity and talent development.