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.

Beyond your operational responsibilities, you will also embody and champion our core values every day:

• Elevate Together – Collaboration is our strength. We support each other, embrace diversity, and grow as a team.
• Xray Transparency – Open communication builds trust and strong relationships. We value honesty, inclusion, and accountability.
• Master Feedback – We challenge and support each other through honest, caring feedback.
• Own the Outcome – We take ownership, move fast, and turn ideas into results.
• Xcute Smart – Keep it simple, act pragmatically, and focus on what truly matters.

Your profile

Must-Haves

• 2–5 years of applying data-science methodologies end-to-end in production (not just prototyping)
• Built and maintained scalable data pipelines using Spark and Databricks for large-scale data ingestion and transformation
• Deployed at least one machine-learning model (Scikit-learn, PyTorch) into a production API or streaming pipeline
• Authored complex SQL for analytics and ETL on modern data warehouses
• Translated sophisticated mathematical and ML concepts into clear, actionable insights for both technical and non-technical stakeholders
• Demonstrated strong problem-solving skills and a collaborative, team-first mindset

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?

• Ambitious people, real ownership. You’ll work with driven, entrepreneurial people who care deeply about what they deliver, challenge each other openly, and own outcomes together.
• We’re playing at the top, but we’re not done. Our apps rank in the top 5 of their categories. We’re determined to push further, compete harder, and earn the number one spot.
• You own your own growth. Growth doesn’t happen by accident. At exmox, learning is built into the work - through responsibility, feedback, and real challenges.
• Perks that help you focus on what matters. Transport subsidy, learning budget, wellness and gym, workation, bi-weekly team lunches, and more. The perks are great - but the real reason people join and stay is the challenge, the people, and the drive to win together. Please note: this is not a remote only position, we offer you a flexible hybrid model here in Hamburg, Germany - working from home on Mondays & Fridays, coming to the office on Tuesday, Wednesday & Thursday! :)

Welcome! Bonjour! Selam! Olá! Hej! 🥳

we are exmox - a Hamburg based mobile marketing agency, connecting advertisers with their highest value users through our owned and operated apps. We created an innovative business model that focuses on rewarding users for testing and engaging with the apps of our clients. Our products are available in DACH, US, UK & Canada.

Right now round about 60 employees from all over the world are working here with us in Hamburg. We are a divers & funny team, always looking for new talents to join us. Looking forward to meeting you!