Senior Data Scientist (m/f/d)

The role

You will work on machine-learning models that process terabytes of data and serve billions of ad requests in real-time. You will enhance models, develop algorithms, and conduct A/B testing.

What you will do

• Continuously improving existing models by incorporating new features, fine-tuning parameters, and utilizing additional data.
• Collaborating with the Machine Learning Engineering team to develop and deploy scalable supervised and unsupervised learning algorithms.
• Identifying and exploring new data sources while researching innovative ways to leverage both new and existing data effectively.
• Investigating new Machine Learning solutions to optimize every step of the value chain.
• Regularly conducting and evaluating A/B tests to drive insights and refine strategies.

Required qualifications

• Minimum 5 years of experience in developing data science products, from initial research through to production deployment.
• Previous experience in Ad-Tech industry is a must.
• Strong coding skills with a focus on clean, reproducible, and well-tested code.
• Proficient in Python, Spark, Hadoop, Airflow, Docker, and SQL.
• Hands-on experience with algorithms for handling sparse and large datasets, including applications in prediction, clustering, and outlier detection.
• Good understanding of dashboards and SQL for developing and enhancing monitoring tools.

Nice to have

• Experience in building neural network-based products for tasks such as classification, regression, and multi-task learning is highly valuable.
• Knowledge of reinforcement learning and large-scale optimization problems is a significant asset.

Benefits

• Directly working with Founders and an opportunity to drive direct impact
• Exceptional career growth and learning opportunity
• A unique opportunity to be part of an experienced team of industry experts and entrepreneurs
• A flexible work-from-home arrangement
• Opportunity to relocate to our office in Berlin
• A 500-dollar home-office setup budget
• A 1000-dollar annual learning and development budget

About the company

Kayzen is the Apps DSP: an AI-native platform built on its own bidding engine, for buying app inventory across mobile and connected TV screens. Headquartered in Berlin, Kayzen operates globally.