Career

If you like a challenge and a high-performance, ultrafast-moving tech environment you will feel like home!

Three reasons that you are in good company!

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Business & Funding

justtrack is our single platform solution to optimizing and automating the growth strategy of mobile apps. Even in stealth mode, we have already signed our first customers. Our solid business model and strong financial support from the applike group gives justtrack a bright future!

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People

We believe that striking the perfect balance between skill set and employee potential is key to our growing team. If you like a challenge and thrive in a fast-moving, high-performing, and friendly environment then you will find yourself in the right place!

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Tech

We know that even the highest-performing tech solutions of today will be old news tomorrow. That philosophy is deeply ingrained in our mindset and drives us to find smart technical solutions to achieve our customers’ long term needs. Check out our tech stack.

Vacancies

Looking for a new challenge? Want to be part of the fastest-growing company in Germany? Oh, and did we mention our state-of-the-art tech stack and impressive funding? At justtrack, we’ve got it good.

Senior Data Scientist (f/m/d)

  • justtrack
  • Tech
  • Full-time
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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.
    • Apply For this job

    Benefits

    Fresh Drinks & Food

    Free inhouse gym

    Flexible Working Times

    Modern Hardware: Linux, Mac or Windows

    Hackathons & Meetups

    Quarterly Team Events

    German class reimbursement

    Company Lunch

    Public Transportation Subsidy

    Free Breakfast everyday

    Dog Friendly

    Starter Kit

    Relocation Support

    3/2 Office Remote Policy

    Adjustable Desks

    Working at justtrack

    At justtrack, we know what our colleagues appreciate most at work: Great office environment, great team, and great vision. Do you feel the same way? Then you know you’ll be in good company at justtrack.
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    City

    We’ve got a cool new office in a cool new location. The Alster lake in Hamburg, northern Germany, is one of the city’s incontestable highlights. Right outside the main city center, it’s a key hub for all the city action – and the year-round picturesque photos. Needless to say, that’s why we wanted our office to look out onto these iconic Hamburg scenes.

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    Diversity

    At justtrack, our team is built on international talent – with more than ten different nationalities contributing actively to our everyday successes and growth. Our colleagues always tell us how good they feel when they can see their hard work and ideas directly impacting our daily business, and we wouldn’t have it any other way. And because we know how hard our team works, regular team events are an absolute must for us. We’re strong believers in flat hierarchies, flexible working, and achieving that all-important work–life balance.

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    Modernity

    We guarantee our colleagues the newest tech stack to support you with your everyday activities, whatever they may be. We also love to keep it playful and fun by organizing hackathons on a regular basis, because what better way is there to exhibit your talent to the whole team (and to eat food with them too)? And with our focus on developing new technologies for our partners and products, it only makes sense that we celebrate every single technology launch. Whether that’s with pizza or beer – or both!