Senior Data Scientist (f/m/x)

Your mission

You actively shape your position, we want you to get involved and contribute ideas!

Exploratory Data Analysis & Insights

• Conduct deep-dive exploratory data analysis (EDA) to identify trends, predict user behavior and optimize key performance metrics (e.g., retention, ROAS).

Machine Learning & Predictive Analytics

• Design, develop, and deploy advanced machine learning models for predictive analytics, recommendation systems and anomaly detection.
• Optimize data-driven strategies through AI/ML applications.

Data Engineering & Pipeline Development

• Build and maintain scalable data pipelines for data ingestion, transformation and high-quality model inputs.

A/B Testing & Experimentation

• Design and execute rigorous A/B tests to validate hypotheses and assess the impact of new features.

AI/ML Integration & Collaboration

• Work closely with engineering and product teams to integrate AI/ML solutions into enterprise applications.
• Ensure smooth deployment and scalability of machine learning models.

Data-Driven Leadership & Best Practices

• Act as a thought leader, promoting data-driven decision-making and implementing best practices across the company.

Your profile

Must-Haves

• Experience: 4+ years of hands-on experience applying data science methodologies in production environments.
• Technical Skills: Strong proficiency in Python (Pandas, NumPy, Scikit-learn, PyTorch) and SQL for data manipulation and model development.
• Experience with cloud-based platforms (Databricks) and big data technologies (Spark).
• Proven experience deploying machine learning models at scale.
• Communication & Collaboration:
• Ability to explain complex mathematical and ML concepts to both technical and non-technical stakeholders.
• Strong problem-solving skills and a team player mindset.
• Comfortable mentoring others and advocating for software engineering best practices in data science.

Nice to Haves

• Familiarity with advanced experimentation techniques (causal inference, A/B testing, media mix modeling).
• Experience with deep learning and time series forecasting for business applications.
• Hands-on experience with ML monitoring tools (e.g., MLflow).
• Background in AdTech or marketing analytics.

Why us?

• Work Life Balance

We value rest and work life balance, we offer you 30 days of paid vacation days

• Commuter Benefits

We provide you with public transportation tickets

• Professional Development

We support you in deepening your skills and provide you an annual education budget of 1.500€

• Workation

Combine Vacation with work: we offer annual workation opportunities

• Gym membership - Wellpass

With Wellpass you can use more than 7000 Spas/ Gyms/ etc. in Germany

• Catering

We offer monthly team lunches, daily fruits and vegetables and every beverage you could wish for

• Flexibility

Benefit from flexible working hours and working from home

• Diversity

We are an international team of talented people with different cultural backgrounds

• Fun and Games

We have a big socializing area to make room for having relaxing activities within the working day

• Desk Setup

Wherever you work, we will provide you with your workspace utensils

Please note: this is not a remote only position, we offer you a flexible hybrid model here in Hamburg, Germany - Working from home on Monday and Friday.