Christian Rotzoll. Software Engineer.

Building useful products from concept to completion.

Things I’ve Built

• Superchat AI Calling. A voice agent handling inbound calls, retrieving knowledge, and taking action. Extending the platform beyond chat into calling.

• Scan and Charge. A full-stack EV charging solution allowing users to start charging sessions by scanning a QR code. Enabled strategic company pivot leading to 8-figure acquisition.

• Smart Water Heater Platform. A system that manages water heaters by integrating real-time solar feed-in data to optimize energy costs. Scaled from tens to hundreds of devices.

• hive.one (now defunct). A platform that mapped and ranked online communities by identifying reputable and influential Twitter accounts (similar to how Google ranks websites).

see more projects ->

Books I’ve read

One favorite per year.

• 2025: There Is No HOW by Kapil Gupta
• 2024: The Beginning of Infinity by David Deutsch
• 2023: The Three Laws of Performance by Steve Zaffron and Dave Logan
• 2022: Badass: Making Users Awesome by Kathy Sierra
• 2021: The Courage to Be Disliked by Ichiro Kishimi and Fumitake Koga
• 2020: The Moment of Lift by Melinda French Gates

see more books ->

Lists I’ve created

• Tools I use
• Courses I’ve taken
• Ideas to keep handy
• Quotes

see all lists ->

About Me

I’m a software engineer with 13 years of experience in software and product development. I’ve built MVPs and core frameworks, scaled systems and shipped products end-to-end. I enjoy working both solo and in small teams with high-agency people.

Outside of work, I love to read and dance Tango.

Values

• pragmatic, but playful
• stoic, but joyful
• candid, but kind

Feel free to reach out via email or check out my code on GitHub .