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Senior Data Scientist, Marketing (d/f/m)

taxfix.comBerlinData Analytics
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Salary
Not listed
Job type
Full-time
Work mode
Remote
Experience
Senior · 5+ yrs
Posted
25 Sept 2026
Status
Open · checked 9d ago

About this role

Based in Berlin, the Senior Data Scientist, Marketing role at taxfix.com centers on establishing advanced measurement and modeling infrastructure for marketing channels. This position suits an experienced data professional who wants to shape growth strategy through rigorous experimentation and causal inference.

Role Overview

The Senior Data Scientist joins the Marketing Analytics team to construct automated measurement frameworks combining attribution, marketing mix modeling, and incrementality testing. Operating within a compact, high-impact team, the individual builds production models that influence customer lifetime value, customer acquisition cost, and overall revenue.

Key Responsibilities

Design and execute incrementality studies and geo tests from inception to final spend evaluation.
Apply Bayesian inference, regression, and causal inference to answer budget allocation questions.
Oversee the marketing measurement stack encompassing brand tracking, attribution, and marketing mix modeling.
Develop production-grade models such as demand forecasting and customer lifetime value predictions.
Translate technical findings into actionable recommendations for diverse stakeholders across marketing.
Integrate AI-native analytics workflows, including LLM-assisted causal analysis and agentic data exploration, into daily operations.

Requirements

Minimum of five years of professional experience in data science or analytics.
Strong background in statistical and causal inference, specifically with Bayesian methods, regression, and incrementality testing.
Understanding of multi-touch attribution mechanics alongside incrementality validation.
Advanced proficiency in Python and SQL for sparse, high-dimensional advertising data handling.
Hands-on background utilizing AI-driven workflows, automated pipelines, or AI-powered development environments.
Proactive approach to driving projects independently from initial data pipelines to business recommendations.

Nice to Have

Prior background in Marketing Mix Modelling.
Machine learning expertise covering forecasting, classification, clustering, and customer lifetime value prediction.
Experience with dbt for data modeling.
Familiarity with business intelligence software such as Looker.

Skills and Tools

Python
SQL
Dbt
Looker
Claude Code
Gemini CLI
LangChain
n8n
Cursor

Salary and Benefits

Employee stock options available for all staff members.
Thirty days of paid annual vacation paired with flexible working hours.
Option to work from abroad for up to six weeks annually.
Free mental health coaching sessions and a monthly flexible service allowance.
Free tax declaration filing through the company application along with internal tax support.
Dog-friendly office environment and regular team get-togethers.

About the Company

Taxfix Group operates across Germany, Spain, and the UK with brands including Taxfix, Steuerbot, and TaxScouts. The organization employs over four hundred professionals dedicated to helping users file taxes and secure refunds through intuitive mobile applications.

How to Apply

Interested candidates should visit the official company careers page to submit an application.

Skills and tech stack

Questions candidates ask

Where is the position located?

The role is based in Berlin.

How many years of experience are required?

Candidates must have at least five years of experience in data science or analytics.

What technical programming languages are required?

The position requires advanced proficiency in SQL and Python.

What benefits are provided by the company?

Benefits include employee stock options, thirty annual vacation days, flexible working hours, the ability to work from abroad for up to six weeks a year, mental health coaching, a monthly service allowance, and free tax filing through the app.

What team will the new hire join?

The individual will join a small team consisting of one senior data scientist, one mid-level data scientist, one analytics engineer, and the hiring manager.

Ready to apply?

The application is on the official taxfix.com careers page.

Apply on company site