CareerPlan

Junior Data Scientist

BerlinFull-time€60k2026-10-16 → 2026-10-21
On-site

Core

Build production ML models that predict user value, engagement, and reward behavior to shape what millions of users see daily.

Role type

Junior IC data scientist (production ML)

Builds

Production ML models, data pipelines, and A/B test infrastructure for user rewards and ranking

Domain

Marketing technology, user engagement, and reward systems

Deliverable

production ML models

Required skills

Python, SQL, A/B testing, data pipeline development, problem-solving without specs

Preferred skills

Kaggle challenge results, hackathon experience, self-built and fixed systems

Technologies

Python, SQL, AI tools

Responsibilities

Build and deploy models predicting user value and engagement; Run A/B tests on offers, rewards, and ranking; Build and maintain data pipelines for models; Solve novel problems from idea to production