Senior Data Scientist (AI)

TL;DR

Senior Data Scientist (AI): Building and optimizing measurement frameworks for marketing and sales, using causal inference, attribution, and predictive modeling with an accent on data architecture and analytical clarity. Focus on developing sophisticated models for B2B sales cycles, optimizing marketing spend, and integrating fragmented data from various platforms.

Location: Must be based in London, Berlin, Cologne, or Amsterdam

Company

hirify.global is a global communications platform powered by Language AI, enabling over 100,000 businesses and millions of individuals to overcome language barriers.

What you will do

• Drive an evidence-based culture by translating complex causal models into actionable playbooks and self-service dashboards.
• Take ownership of the end-to-end data lifecycle for marketing, building production-grade dbt models and scalable data architecture.
• Design and execute causal inference methods, including A/B, incrementality, and holdout tests, to isolate the true incremental impact of marketing spend.
• Build models to predict lead quality, Customer Lifetime Value (LTV), and revenue potential.
• Develop forecasting tools and Marketing Mix Models (MMM) to inform long-range strategic planning and optimize channel mix.
• Develop and maintain attribution models (MTA, DDA) that account for long consideration cycles and multiple touchpoints.

Requirements

• 5–8+ years of experience in Marketing Science, Data Science, or Econometrics, with a focus on B2B, SaaS, or high-consideration B2C environments.
• Expert in SQL and data transformation tools (dbt), capable of building and maintaining robust data pipelines on modern cloud platforms (DataBricks, Snowflake, BigQuery).
• Strong Python skills for statistical modelling, including CausalML, DoWhy, Statsmodels, LightweightMMM, and GoogleMeridian.
• Hands-on experience measuring marketing and sales impact using various methods (quasi-experimental designs, matching, MMM, Causal ML) and proven ability to model complex, multi-touch journeys.
• Excellent communication skills to translate complex data insights (like incremental lift) into actionable strategies for non-technical partners.
• Proven ability to act as a "product owner" for data initiatives, effectively prioritizing and structuring complex business problems.

Culture & Benefits

• Open and welcoming work culture that fosters authenticity and diversity.
• Opportunity to work with modern technology and competitive benefits.
• Contribute to a mission of improving global communication and bringing cultures closer.
• Be part of a team dedicated to innovation and employee well-being in a fast-moving AI space.