Senior Data Scientist (f/m/d)

As a Senior Data Science you will join a team of highly committed analysts, data engineers and developers and form our data science team.

At justtrack, we build a SaaS business that provides app and game publishers an attractive toolset to handle their entire global marketing growth process. Starting from managing, analyzing, and automating marketing processes, justtrack enables gathering deep mobile product insights. As part of the Applike Group (financially backed by media powerhouse Bertelsmann), justtrack has access to industry experts and funding with a long-term growth mindset.

You will join our small but growing Data Science team where you will have access to state of the art technology and work closely with all business stakeholders to implement new approaches on how to leverage our data assets with new algorithms and ideas. Our team’s mission is to effortlessly gather, aggregate, and instantly provide all in-app event and marketing data to developers and marketers. Your exploratory data analysis will help us make the data speak by transforming recurring analyses into metrics and alerts.

How the optimal candidate will look like:

• You have 5+ years of experience in applying Data Science, ML and time series analysis in real-life tasks where the projects had measurable business value
• You have a Master’s degree in Data Science/Applied Mathematics or a related field
• Expert knowledge of Python, SQL, ML frameworks like scikit-learn and know the AWS tech stack well
• You have an entrepreneurial and hacker mindset, when there is a tough problem it motivates you to drill deeper
• You easily switch between move-fast- and no-margin-for-error-modes
• You are able to dive deep into math and explain complex topics in an easy way

Key responsibilities:

• Drive the development of our data science tech stack by looking for innovative opportunities and steering the implementation by our development team
• Hand in hand with our developers you transform recurring analyses into metrics, charts, business related messages and the underlying data storage and pipelines
• You will work on ML models to notify our users about detected trends and statistical outliers in real-time
• You extract knowledge and actionable insights from noisy, structured and unstructured data
• You perform exploratory data analysis to determine correlations and trends
• You drill into data from various sources (Redshift, Spark, SQL, Athena, S3, Druid event streams, AWS data pipeline)

Fuel for the Journey: Benefits to Support Your Ambitions

• Invest in Your Future: Regular feedback and our development program support your growth, helping you expand your skill set and achieve your career goals.
• Easy Arrival to justtrack: From signing to settling in Hamburg, we’ve got you covered. Need a visa? No problem. Ready to build your new life and career at justtrack in Hamburg? We support every ambition—from learning German to a relocation bonus that helps you settle in and make Hamburg feel like home.
• Live Your Best Life, at Work and Beyond: We work in a hybrid setup with 3 core office days, plus flexible working hours. Enjoy 30 vacation days, 3 weeks of remote work per year, and free access to an in-house gym with lots of different fitness classes and mental health support through our Employee Assistance Program (EAP).
• Thrive Where You Work: Enjoy the Alster lake view from our central office with top-notch equipment, fun open spaces, and a large variety of snacks and drinks.
• Join the Community! Participate in regular team and company events, including hackathons and social gatherings. We work together, and we celebrate together, too.