Data Science Engineer
@ Affinity Global Inc

Berlin, Germany
On Site
Full Time
Posted 9 days ago

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XXXXXXXXX XXXXXXXXXXX XXXXXXXXX******@affinityglobal.com
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Job Details

About Affinity

Affinity is a global ad tech company creating digital products that connect brands with audiences worldwide. Our branding and performance solutions focus on sustainable growth and great user experience. Since 2006, we’ve grown to 450+ people across six business units in markets from Germany to the US, India, and Brazil. AI is now a core part of our future, and we’re looking for someone to shape its role and lead transformative projects across the company.

Your Role

We’re looking for a Data Science Engineer to develop AI/ML solutions that improve ad decisioning, creative optimization, forecasting, and automation in digital advertising.

What You’ll Do

  • Design and implement AI/ML algorithms for advertising use cases.
  • Process and prepare structured and unstructured data for modelling.
  • Build and maintain predictive models, dashboards, and automated reports.
  • Identify trends and insights in large datasets, ensuring data privacy and security.
  • Run experiments to test and refine new algorithms.
  • Work closely with product, engineering, and sales teams to turn ideas into reality - from first prototype to production-ready systems.
  • Stay ahead of AI/ML developments and bring fresh ideas into our products.

What You Bring

  • 3+ years’ experience as a Data Scientist, ideally in digital advertising.
  • Strong background in machine learning, statistics, and data engineering.
  • Hands-on experience with ML libraries (TensorFlow, PyTorch, scikit-learn, XGBoost).
  • Proficiency in Python, R, SQL, or similar languages.
  • Curiosity, problem-solving skills, and the ability to explain complex topics simply.
  • A collaborative mindset and the drive to see projects through to impact.

What We Offer

  • A crowd of passionate and smart people fostering open discussions, fun, and a strong feedback culture.
  • Working in an international environment with teams and clients located in multiple countries.
  • Opportunity to leverage the resources and network of a leading AdTech innovator.
  • Ownership from day one and opportunities for continuous learning and growth with Udemy license.
  • Flexible working hours, work-from-home, and generous vacation.
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How to Get Hired at Affinity Global Inc

🎯 Tips for Getting Hired

  • Customize your resume: Tailor your resume to highlight relevant experience in data science and ad tech.
  • Network effectively: Connect with current employees on LinkedIn to gain insights.
  • Showcase your skills: Provide clear examples of past AI/ML projects in your application.
  • Prepare for technical interviews: Review machine learning concepts and algorithm questions relevant to data science.

📝 Interview Preparation Advice

Technical Preparation

Familiarize with TensorFlow and PyTorch libraries.
Practice building predictive models with real datasets.
Review SQL queries for data manipulation.
Stay updated on recent AI/ML industry trends.

Behavioral Questions

Prepare examples of effective teamwork in projects.
Reflect on experiences solving complex problems.
Think about how you handle feedback and criticism.
Outline your approach to managing time and priorities.

Frequently Asked Questions