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Senior Data Scientist (f/m/d) 🚀

  • adjoe
  • Act Now!
  • Full-time
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adjoe is a leading mobile ad platform developing cutting-edge advertising and monetization solutions that take its app partners’ business to the next level. Part of the applike group ecosystem, adjoe is home to an advanced tech stack, powerful financial backing from Bertelsmann, and a highly motivated workforce to be reckoned with.

Meet Your Team: WAVE Data Science
Did you know that in-app ads are sold in a real-time auction before they get rendered in thousands of mobile apps? Dozens of ad networks compete for every single view, choosing their best ad and deciding what price to bid in just a couple hundred milliseconds. We at adjoe have developed our own ad network that takes part in this competition, fighting against giants like Google, Meta and TikTok to present its own ads. To stand a chance in this fierce competition, the WAVE Data Science team builds creative algorithms using technologies ranging from simple linear regression to advanced deep learning models. Everything we do is based on solid research about user behavior as well as publisher and advertiser analysis to build competitive bidding algorithms that balance the advertisers’ goals, the publishers’ expectations and of course the user experience. To make our inventions come to life we use state-of-the art technology and work closely with the product and business teams to shape the future of adjoe’s core business and technologies.
What You Will Do
  • Architect and Refine Relevance Models: design and implement sophisticated targeting models that understand user preference within the dynamic ad tech ecosystem. Drive significant improvements in ad performance and user engagement through machine learning techniques.
  • Explore Policy Optimization Strategies: Develop and optimize bidding policies using Bayesian method, reinforcement learning and other advanced optimization algorithms. Continuously refine these policies to maximize business KPI and adapt to the ever-changing real-time bidding landscape.
  • Build and Deploy Meta-Learning Frameworks: Create and implement meta-models that learn from user interactions, enabling personalized ad experiences. 
  • Conduct rigorous A/B testing and experimentation: Validate your hypothesis and measure the impact of new features on key business metrics.
  • Champion Software Engineering Best Practices: Advocate for best practices, robust software engineering principles, within and outside our data science community.
    • Who You Are
  • You have 4+ years of professional experience in the Data Science field working in adtech, e-commerce, social media or a similar industry.
  • You are comfortable navigating and extracting insights from massive datasets using tools like AWS Athena, Spark, Ray demonstrating fluency in distributed data processing. 
  • You possess a strong foundation in mathematical concepts and are skilled at translating complex algorithms into clear, concise explanations for both technical and non-technical audiences.
  • You are a strong team player and enjoy helping others.
    • 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 adjoe: 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 (company name) 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.
    • Skip writing cover letters. Tell us about your most passionate personal project, your desired salary and your earliest possible start date. We are looking forward to your application!

    We welcome applications from people who will contribute to the diversity of our company.
    Apply for this job

    Who Are We Looking For?

    Can’t find your fit? Send us your application anyway!
    Let’s talk

    How We Hire

    Most people spend around one-third of their life at work. It’s our priority to build a team of people growing not only the business but their adtech careers.
    Life at adjoe

    Tech Team

    Introduce Yourself
    Tell us about your experience and background. Let’s get to know each other!
    Showcase Your Skills
    Take home a case study to work on – demonstrate your technical skills.
    Talk to the Team
    We’ll give you feedback on your case study and ask you to demonstrate your technical expertise.
    Have a Call with Our Co-Founders
    You’ve made it this far! In this last step, adjoe’s Co-Founder Carlo Szelinksy will get to know you.
    Decision Time
    We’ll let you know how you did! Our team will reach out to the most suitable person for our team.

    Business Team

    Introduce Yourself
    Tell us about your experience and background. Let’s get to know each other!
    Showcase Your Skills
    Take home a case study to work on – demonstrate your specialist skills.
    Talk to the Team
    We’ll give you feedback on your task and ask you to demonstrate your expertise to our Business leads.
    Have a Call with Our Co-Founders
    You’ve made it this far! In this last step, adjoe’s MD Thorsten Wiesner will get to know you.
    Decision Time
    We’ll let you know how you did! Our team will reach out to the most suitable person for our team.
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    young woman with adtech career smiling and looking at screen
    two young people sitting in the office laughing

    Achieve Great Things – Receive Great Things

    There’s more to life than work. That’s why we’re big on employee perks.
    office days 3× a week
    30 vacation days
    quarterly hackathons
    applike group parties
    WFH 2× a week
    on-site gym & personal training
    learning & development program
    quarterly team events
    3 remote weeks per year
    dog-friendly office
    German classes reimbursement
    monthly company lunches
    Employee Assistance Program (EAP)
    weekly fitness & yoga classes
    cross-departmental onboarding
    referral bonus up to €7,000
    visa support
    free snacks & drinks
    mentorship program
    subsidized transport ticket
    Explore the adjoe culture

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