VERIFIED ENGLISH WORKPLACE

Machine Learning Engineer

cancierge.ai • Aachen, North Rhine-Westphalia, Germany

100% English First

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Who we are Cancierge® is a health\-tech startup building the lifetime AI platform for oncology and longevity. We support cancer patients, their families and clinicians with AI\-driven guidance, from diagnosis through treatment and into long\-term health. Patients, clinics and clinical studies feed a growing longitudinal data platform; medical knowledge from leading oncologists is at the core of everything we build.

We are a senior, mission\-driven team. The atmosphere is relaxed and direct: flat hierarchy, no corporate theatre, passionate discussions welcome and a mission that matters. We build a regulated medical product (EU MDR), so quality and clean engineering are not optional extras; they are how we protect patients.

What you will do You will be the engineering backbone of our AI core \- turning medical logic designed by our Head of AI and clinical experts into clean, tested, production\-grade machine learning code, embedded in the engineering process run by our CTO.

**Build:** own the implementation of our AI core, from prototype logic to clean, modular, testable production code * **Evaluate:** design and maintain evaluation harnesses, choice of metrics, reproducibility, multiple setups * **Data:** build and run data pipelines for text data, including data cleaning * **Train:** run and improve ML training and tuning (hyperparameters, learning rates, overfitting control) * **Connect:** work hand in hand with our medical/logic layer on one side and our engineering and infrastructure team on the other \- you are the bridge between the two

What you bring * Strong Python: you write clean, modular, testable code * Solid PyTorch: you understand the framework and the theory behind it * Hands\-on ML experience: hyperparameters, overfitting, learning rates and friends * Experience building eval harnesses: choice of metrics, reproducibility, different setups * Experience with data pipelines for text data, including cleaning and augmentation * Basic Linux server administration, including Docker * Good spoken and written English, our working language across the team

Nice to have * Natural Language Processing background * GPU programming * Model fine\-tuning experience with LLMs * Rust

What we offer * A mission with real impact: helping people through one of the hardest journeys there is * €80,000–90,000 gross per year, depending on experience * Home\-office first: you work remotely, with fixed team days each month at our…