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ML Engineer - with Data Science Background (d/f/m) Job Opening In Berlin – Now Hiring WomenTech Network


Job description

Personio's intelligent HR platform helps small and medium-sized organizations unlock the power of people by making complicated, time-consuming tasks simple and efficient.

Our growing team of 1,800+ Personios across Europe and the US are building user-friendly products that delight our 14,000+ customers and their million employees.

Ready to make an impact from day one?

ML Engineer - with Data Science Background (d/f/m)


Personio is growing rapidly.

With that growth comes the increasing demand for machine learning solutions that don’t just provide insights, but power real, production-ready products.


As an ML Engineer, you will play a pivotal role in shaping Personio’s AI and ML capabilities.

We are looking for someone who can build high-quality ML systems with the rigor of an engineer, while also bringing the curiosity and experimentation mindset of a data scientist.

Your work will involve productionizing ML and generative AI models, ensuring they deliver measurable business impact.


You’ll join our central AI/ML function, collaborating across departments to drive innovation and enable AI-driven decision-making at scale.

What you’ll do



  • Design, develop, and deploy robust machine learning and AI systems for a range of business use cases, including generative AI.




  • Build and operationalize ML solutions to address business challenges and unlock new opportunities.




  • Integrate ML and AI models into production systems, ensuring scalability, reliability, and maintainability.




  • Deploy and monitor MLOps workflows, including CI/CD pipelines, automated testing, monitoring, and model versioning.




  • Leverage cloud platforms (AWS + Snowflake) and ML infrastructure (, SageMaker, feature stores) for scalable deployment.




  • Collaborate with cross-functional teams (Product, Sales, Marketing, etc.) to deliver AI-driven features and insights.




  • Ensure all ML/AI solutions adhere to best practices in data privacy, security, and ethical standards.




  • Contribute to a culture of technical excellence, knowledge sharing, and continuous learning.



  • What you need to succeed



  • University degree in Computer Science, Machine Learning, Data Science, or a related field.




  • 5+ years’ experience building and deploying production-grade machine learning models.




  • Strong software engineering mindset — ability to write clean, reusable, and scalable code in Python.




  • Experience integrating ML/AI models into production software systems.




  • Solid understanding of MLOps practices, CI/CD pipelines, and automated testing frameworks.




  • Background in data science: comfort with experimentation, A/B testing, and measuring ROI/impact of ML projects (not just accuracy).




  • Hands-on experience with ML frameworks (, TensorFlow, PyTorch, Hugging Face).




  • Experience with NLP or generative AI techniques is a strong plus.
    Familiarity with cloud-based ML infrastructure (AWS, Snowflake, SageMaker, etc.).



  • Why this role?



  • Join a newly created AI sprint team focused exclusively on delivering LLM and ML-powered projects with real business impact.




  • Work in a lean, well-supported environment (dedicated TPM, analytics engineer, and data platform support — no need to build ingestion pipelines).




  • Full ownership of end-to-end ML delivery: from prototype to production.




  • Exposure to high-impact use cases (, automating marketing campaigns, personalization engines) backed by executive sponsorship.




  • A chance to bridge the gap between data science and engineering, bringing cutting-edge AI into production at scale.



  • Why Personio?


    We’re one of Europe’s fastest-growing tech companies, building the leading HR platform for SMEs. With over 15,000 customers, offices across Europe, and strong backing from top-tier investors, Personio is scaling fast — and AI is a critical enabler of that growth.


    We’re also proud of our culture:



  • A diverse, inclusive workplace where your voice matters.




  • Competitive compensation, equity, and benefits.
    28 days’ vacation, plus an additional day after two and four years.




  • Flexible, office-led but remote-friendly working with the option for international work weeks.




  • Mental health support, family leave, Impact Days, sabbaticals, and regular team events.


  • Required Skill Profession

    Computer Occupations


    • Job Details

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