Senior Data Scientist — Real-Time Personalization & Growth

Benjamin; Oulu; On-site; EUR 70,000 - 120,000; Full time

Benefits offered by this job

Competitive pay

Hyper-Growth environment

Cutting-edge collaboration

Positive workplace culture

Job summary

Benjamin is a fast-growing rewards/fintech startup reshaping how everyday actions are rewarded. We’re seeking an experienced Data Scientist to frame high-impact problems, build predictive models, and deploy data products that directly affect engagement and rewards optimization.

You’ll work with a modern stack and own end-to-end ML pipelines from experimentation to production. Join a hyper-growth environment with real money incentives (MoMos) and a culture of ownership, collaboration, and rapid

Qualifications

• Strong statistical judgment: you know experimentation, causal inference, and model evaluation cold.
• Track record of models that moved a real business metric.
• Experience with recommendations, ranking, forecasting, uplift, or causal methods.
• You've operated reliable pipelines in production, not just built them once.
• Comfortable getting your own work into production — cloud (AWS preferred), a warehouse (Snowflake, BigQuery, Postgres, or similar), and enough software engineering fundamentals (Git, testing, CI/CD, Docker) to ship without hand-holding.

Responsibilities

• Find and frame high-impact problems and define the levers that move the metric.
• Optimize rewards and incentives through uplift modeling and pricing optimization.
• Recommend and rank offers and content in real time for the right user at the right moment.
• Own experimentation and measurement across product and paid acquisition — MMM and attribution.
• Turn ideas into production data products, not just discussions or documents.
• Build features, labels, datasets, and evaluation pipelines for ML models.
• Ship models as batch jobs, APIs, or product features and keep training, validation, and inference reliable.
• Mentor the team and set the standard for ML engineering at Benjamin.

Skills

Statistical judgment

Experimentation

Recommendations & ranking

Production pipelines

Communication & ownership

Tools

Python

SQL

TypeScript

AWS

Snowflake

BigQuery

Postgres

Git

CI/CD

Docker

Terraform

dbt

Job description

Benjamin is a fast-growing rewards/fintech startup reshaping how everyday actions are rewarded. We’re seeking an experienced Data Scientist to frame high-impact problems, build predictive models, and deploy data products that directly affect engagement and rewards optimization.

You’ll work with a modern stack and own end-to-end ML pipelines from experimentation to production. Join a hyper-growth environment with real money incentives (MoMos) and a culture of ownership, collaboration, and rapid