Senior Marketing Data Scientist (m/f/d)

FlixBus; Warsaw (IN); Hybrid; USD 120,000 - 190,000; Full time

Benefits offered by this job

Work from (M)Anywhere

Hybrid work model

Wellbeing support

Learning & Development

Mentoring Program

Job summary

Flix is seeking a Senior Data Scientist to own causal measurement practices within the Commercial & Marketing Intelligence team. You will design and run experiments that influence how we allocate our global marketing budget, collaborating with Marketing & Sales, Revenue Management, Reporting, and Engineering.

You will develop geo-based, time-based, and synthetic control frameworks, applying difference-in-differences, synthetic control, and Bayesian structural time series to quantify marketing

Qualifications

• Holds a Master’s or PhD in Statistics, Econometrics, Applied Mathematics, Data Science, or a related quantitative field.
• 5+ years of experience in a data science or quantitative research role, with hands-on experience designing and evaluating causal experiments.
• Demonstrate strong command of causal inference methods including difference-in-differences, synthetic control, Bayesian structural time series, or matched market testing.

Responsibilities

• Own the design, execution, and continuous improvement of geo-based, time-based, and synthetic control experiment frameworks across global markets and channels.
• Apply econometric and causal inference techniques (difference-in-differences, synthetic control, Bayesian structural time series) to measure marketing impact on bookings and revenue.
• Build and manage a structured test-and-learn programme across paid channels, identifying measurement gaps and prioritising experiments by business value.
• Contribute to attribution models (CLV-MTA and MMM) and provide reliable benchmarks that reduce reliance on self-reported data.
• Translate complex causal findings into clear, actionable recommendations for marketing teams, finance, and senior management.
• Review experiment designs, document thoroughly, and help shape internal standards for marketing effectiveness.

Skills

Causal inference

Experiment design

Python

SQL

Power BI

Data storytelling

Git/reproducible workflows

Education

Master's or PhD in Statistics/Econometrics/Applied Math/Data Science

Tools

statsmodels

PyMC

CausalImpact

BigQuery

Snowflake

Job description

At Flix, we offer a dynamic work environment with competitive pay, strong growth opportunities, and a tech-driven approach to making travel more accessible, sustainable, and affordable.

As a Senior Data Scientist in our Commercial & Marketing Intelligence team at Flix, you can make an impact by owning and evolving our causal measurement practice - designing and running experiments that directly shape how we allocate our global marketing budget. You will work closely with a dedicated team across Marketing & Sales, Revenue Management, Reporting, and Engineering to ensure our incrementality evidence drives smarter, more transparent choices at scale.

About the Role

• Own the design, execution, and continuous improvement of geo-based, time-based, and synthetic control experiment frameworks, ensuring methodological rigour and scalability across global markets and channels
• Apply econometric and causal inference techniques - including difference-in-differences, synthetic control, and Bayesian structural time series - to measure the true incremental effect of marketing activities on bookings and revenue
• Build and manage a structured test-and-learn programme across paid channels, identifying measurement gaps and prioritising experiments by expected business value
• Contribute to the development and validation of attribution models (CLV-MTA and MMM), providing reliable benchmarks that reduce reliance on platform self-reported data
• Translate complex causal findings into clear, actionable recommendations for a wide range of stakeholders including marketing teams, finance, and senior management
• Review experiment designs, create thorough documentation, and help shape internal standards for how Flix measures marketing effectiveness across all channels

About You

• Holds a Master's or PhD in Statistics, Econometrics, Applied Mathematics, Data Science, or a related quantitative field
• Brings 5+ years of experience in a data science or quantitative research role, with hands-on expertise in designing and evaluating causal experiments such as geo experiments, time-series holdouts, or synthetic control studies
• Demonstrate strong command of causal inference methods including difference-in-differences, synthetic control, Bayesian structural time series, or matched market testing
• Proficient in Python,SQL, Power BI and experienced with statistical modelling libraries such as statsmodels, PyMC, CausalImpact, or equivalent tools
• Comfortable with version control (Git), reproducible workflows, and cloud or data warehouse environments such as BigQuery or Snowflake
• Proven ability to present statistical findings to non-technical audiences and contribute to strategic choices with data
• Experience in marketing measurement, media mix modelling, or growth reporting is a plus - as is familiarity with Bayesian methods

We recognize that everyone carries a unique set of valuable skills and experiences. If you think you could have an impact even though you don't meet 100% of the requirements, we still encourage you to apply. We want to hear from you!

What We Offer

• Work from (M)Anywhere: Depending on your role, work from another location for up to 60 days per year.
• Hybrid work model: We are an office-first company, but we offer flexibility to balance work and life.
• Wellbeing support: Access confidential 1:1 counselling, courses, and stress management for yourself and up to four family members.
• Learning & Development: Take advantage of language classes, training courses, and expert-led sessions to grow your skills.
• Mentoring Program: Connect with experienced colleagues to gain insights and accelerate your career.

At Flix, you’ll find teams that rally together to overcome challenges and spark creativity. We believe in ownership culture - giving you the freedom to take initiative, make an impact, and shape your own career path.
As we continue to expand across the globe, you can make a real difference in how we work.

If you’re ready to grow and lead your journey, Flix is the place for you!