About me.

I am Nico, also known as “Len”, and I am based in Northern Germany. I build digital products from the first idea through product structure and interface design to a working implementation.

As founder and product lead, I usually work behind the scenes: defining product direction, making decisions and turning concepts into systems people can actually use. My approach combines technical development with a strong sense of identity, interaction and practical detail.

len9one1 is my personal space outside TopicPair itself. It holds selected product work, projects, studies and observations, with original artwork as part of the wider personal archive.