Principal Machine Learning Engineer (fmx)

Your Mission

This is a company built for growth.

When you join exmox youre stepping into a high-velocity environment where data is not just analyzed but turned into systems that directly drive business performance. You will operate at the intersection of data engineering and product solving real-world problems in a space that demands both speed and precision.

We build high-performing consumer products in one of the most competitive industries: mobile gaming. As part of a company on a path of hyper-growth you will help shape how machine learning becomes a core driver of our innovation from smarter decision-making to scalable production-ready intelligence across our platform.

If youre looking for a role where you only experiment or stay in research this isnt it.

As a Principal Machine Learning Engineer (f/m/x) at exmox youll lay the foundation for how ML is built deployed and scaled across the company turning insights into systems and models into measurable impact.

Youll own the full ML lifecycle end to end from first idea through production and continuous improvement working closely with Data Science Data Engineering and Product. AI is core to how we operate not just what we build: we use AI tools daily to work smarter cut out repetitive work and spend our time where it actually moves the needle. If that mindset speaks to you youll fit right in.

If this sounds like your kind of challenge we want to hear from you.

What youll own

• Machine learning systems & impact
  You design build and deploy machine learning models that solve real business problems. You focus on production-ready systems that directly influence product performance user behavior and revenue not just offline experiments.
• End-to-end ML lifecycle
  You take ownership from experimentation to deployment and beyond. You validate models ship them into production monitor their performance and continuously iterate to improve outcomes in dynamic environments.
• Collaboration across data & engineering
  You work closely with Data Scientists and Analysts to translate insights metrics and hypotheses into scalable ML solutions. At the same time you partner with Data Engineers to ensure robust data pipelines feature availability and reliable model deployment.
• ML infrastructure & foundations
  As one of the first ML engineers you help define how ML is done at exmox. You establish best practices tooling and architecture for model development deployment versioning and monitoring building the foundation for future scale.
• Translating ambiguity into systems
  You take loosely defined problems and turn them into structured ML solutions. You make trade-offs define approaches and bring clarity where none exists yet.

What You Bring

• Strong applied ML experience
  You bring 7 years of solid experience in machine learning applied statistics or data science with a clear focus on real-world production use cases not just theoretical work.
• Technical depth & programming skills
  You are highly proficient in Python and experienced with modern ML libraries such as TensorFlow or PyTorch. You write clean maintainable and production-ready code. You actively use AI tools in particular Claude as part of your development workflow and know how to leverage LLM APIs to accelerate prototyping research and production feature development.
• Data & infrastructure understanding
  You are comfortable working with data pipelines and infrastructure including SQL data warehouses ETL/ELT workflows and Databricks. You understand how data flows power reliable ML systems.
• Production mindset
  You have hands-on experience with deploying versioning and monitoring models in real-world environments. You think beyond training toward scalability reliability and long-term performance.
• Communication & translation skills
  You can translate business and analytical questions into ML problems and clearly explain ML concepts to non-technical stakeholders aligning teams around practical solutions.
• Builder mentality
  You thrive in ambiguity and fast-moving environments. You create structure where none exists make pragmatic decisions and take ownership of outcomes from start to finish.

What You Can Expect

• Ambitious people real ownership. Youll work with driven entrepreneurial people who care deeply about what they deliver challenge each other openly and own outcomes together.
• Were playing at the top but were not done. Our apps rank in the top 5 of their categories. Were determined to push further compete harder and earn the number one spot.
• You own your own growth. Growth doesnt 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!

Employment Type : Employee
Experience: years
Vacancy: 1