Portrait of Tim Lenzen

Tim Lenzen

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Senior Data Scientist · Ailio GmbH

Bielefeld, Germany

First-time speaker at PyCon DE & PyData 2025

About — in the speaker's own words

I am currently working as a Senior Data Scientist at Ailio. My focus is on helping improve organizations by better utilizing their data. I contribute to these transformation projects by bringing in my broad expertise in data related topics ranging from data engineering and cloud-development (AWS, Azure) over data science and machine learning to communication and leadership skills.

After completing my masters in chemistry, I really started my journey in the data science and machine learning field during my PhD studies in theoretical chemistry. The next step for me was a role as a data scientist in a company developing software in the IT-Security field. For five years, I worked on a system to detect suspicious e-mail traffic using machine learning. Set aside the technical aspect of the job, I also built a small team. From this experience I learnt a lot about leadership and developing software products on a larger scale.

I strongly believe that using the right data to inform important decisions helps organizations of all kinds improve. However, often this is easier said than done. I am always curios to discover and tackle these interesting challenges. Also, I am more than happy to sharing my knowledge and learnings.