Machine Learning Engineer

octonomy AI GmbH
Köln, Germany
16 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Shift work
Languages
English

Job location

Köln, Germany

Tech stack

Artificial Intelligence
Continuous Integration
Information Technology Operations
Python
Machine Learning
Software Engineering
Large Language Models
Machine Learning Operations
Docker

Job description

Our AI octo-Workers automate business processes with high reliability, strong security, and zero hallucinations. Leading customers already trust us - and we're growing rapidly across Germany and internationally.

Your Role As Machine Learning Engineer (m/f/d), you will design and ship production-grade AI systems at the intersection of machine learning, large language models, and agentic workflows. This is not a research-only role - and not a generic model training role. You will take ownership of real AI systems that power automation in mission-critical business environments. * Build end-to-end AI systems in production: Develop, deploy, andoperateML and LLM-based models that deliver measurable impact.

  • Work on modern LLM architectures: Design and improve systems such as RAG pipelines, tool-using agents, and multi-step reasoning workflows.
  • Own reliability and evaluation: Set up robust evaluation frameworks, monitoring, and guardrails to ensure consistent performance and minimal hallucinations.
  • Develop scalable ML infrastructure: Improve training workflows, deployment pipelines, and automation (CI/CD for ML, reproducibility, model lifecycle).
  • Shape knowledge-centric AI solutions (future direction): Contribute to building structured knowledge bases, potentially involving ontology-driven knowledge graphs.
  • Lead technical projects end-to-end: Drive architecture decisions,establishbest practices, and mentor others as we scale our AI engineering organization., * A role with real ownership: you'll directly improve the day-to-day experience of the team
  • A fast-moving environment where quality and pragmatism matter
  • Close collaboration with experienced IT Operations and a global team
  • Flexible working hours that fit around your studies
  • The opportunity to grow into broader IT Ops topics (tooling, processes, security basics)

Requirements

Do you have experience in Research?, Do you have a Master's degree?, Strong experience shipping ML systems: Several years of experience building and deploying models in real-world production environments.

  • LLM & agentic systems expertise: Hands-on work with large language models, RAG setups, orchestration frameworks, or agentic workflows.
  • Research mindset and culture: Experience from R&D, publications, or advanced academic work is a plus - but most importantly, you work systematically: experimentation, documentation, and best practices.
  • Solid software engineering fundamentals: Proficiency in Python and ML frameworks, with clean, tested, maintainable code.
  • ML Ops and production ownership: Comfortable with Docker, CI/CD, monitoring, and operating models beyondinitialtraining.
  • Leadership and project ownership: Proven ability to lead complex technical projects end-to-end (Staff/Principal mindset is a strong plus).

About the company

At octonomy, we're not a typical AI startup. We're building big - backed by one of Europe's largest seed rounds (€20M) to scale our vision fast and sustainably. Our mission is clear: we transform companies with the most intelligent digital workforce, enabling a new era of growth.

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