About

I build Timmy the way I would want a baby monitor for my own family.

Reliable, transparent, and with clear accountability for privacy, technology, and every release that goes live.

Tim Kaltenbrunner · Zurich
Tim Kaltenbrunner

I am married, father of two daughters, and work as a software developer at Zürcher Kantonalbank. Timmy started because I wanted a baby monitor whose technology and data flows I can fully understand.

The app is implemented entirely with AI assistance. I define the concepts, review the code, and make the final decisions on privacy, security, and releases.

  • 15+ years in software engineering building robust systems in high-responsibility environments
  • MSc TU Munich + ETH Zurich CAS Data Management Systems and Big Data
  • No tracking, no cloud recordings Documented security architecture instead of a black box
Review the code How Timmy is built with AI

Privacy first

Timmy is designed to keep data exposure minimal: no analytics SDKs, no cloud recordings, and data flows that stay understandable.

Technology with clear boundaries

The security-relevant core is kept separate on purpose. Trust should come from understandable architecture and reviewable security logic, not from marketing promises.

AI with accountability

AI speeds up implementation. Accountability for the concept, code review, and every production decision stays with me.