I design, build, and ship products end to end. These are the latest — more on the way.
Head of Eng.
Full-stack
04 · ∞ next
For hire
I build software that thinks with you — opinionated products that fold AI, device context, and good design into something genuinely useful. Small surface, deep capability. Shipped end to end, by one person who cares about the details.
Building
An agentic AI assistant in the palm of your hand.
A personal assistant that doesn't just chat — it acts. Ergo is outfitted with a growing toolkit that reaches into your device and connected data, then gets things done on your behalf. Deeply customizable, so it works the way you do.
Agentic by design
Plans and executes multi-step tasks with real tools — not just answers, outcomes.
Device-aware
Taps into on-device capabilities and the data you connect for context that generic assistants can't reach.
Yours to shape
Customize tools, behavior, and personality so the assistant fits your life instead of the other way around.
Private & in your pocket
Built mobile-first, so your most capable assistant is always one tap away.
Live
Your physical mailbox, digitized and understood.
Digitize your physical mail and let AI do the reading. Papercut turns the stack on your counter into a searchable dashboard — summaries, extracted actions, and due dates surfaced automatically, so paper stops running your life. Fighting Germany's obsession with paper.
Summaries & actions
AI reads every letter, gives you the gist, and pulls out what to do — amounts to pay, deadlines, numbers to call.
Bills & due dates
Keeps track of unpaid bills and when they're due, so nothing slips through and no deadline sneaks up on you.
Notified, never buried
Push notifications for new mail as it arrives. Junk is silenced automatically — but stays there if you ever need it.
Find any letter
Categorizes everything — tax-relevant letters always at hand — with multi-facet search from your iPhone, iPad, or Mac.
Building
Personalized tours, built for the day you're actually having.
Walko crafts a tour that fits you — your interests, your time, your circumstances. It accounts for the weather, makes sure you arrive when places are open, and sequences everything into one itinerary built just for you.
Itineraries that fit you
Tells you what to see based on your interests and the time you actually have — not a generic top-10 list.
Aware of the real world
Factors in weather and opening hours so you show up when places are open and conditions make sense.
Smart sequencing
Orders stops into a route that flows, so the day feels effortless instead of scattered.
Made for the moment
Adapts to your circumstances on the day, building the plan around how you want to spend your time.
Concept
Catch a thought the instant it strikes.
The ideas that vanish before you can grab them — caught. Press one button on your wrist, speak, and it's captured, transcribed, and filed with related thoughts. A gentle evening reminder helps you build on the ones worth keeping, so your best spontaneous ideas stop slipping away.
Capture in a blink
One tap on your Apple Watch and the thought is safe — before typing or fumbling for an app can kill it.
Speak, don't type
Just talk. The app listens, transcribes what you said, and writes it down for you.
Sorted automatically
Analyzes each thought, categorizes it, and groups it with similar ideas so themes surface on their own.
Evening nudge
Reminds you in the evening to revisit and elaborate — only if you want to.
From a vague idea to a shipped app in the store. Strategy, design, and engineering under one roof.
Agentic systems, LLM tooling, and AI features that are actually useful — not bolted-on gimmicks.
End-to-end builds: native-feeling apps, the APIs behind them, and the cloud they run on.
Head-of-engineering experience: setting technical direction and shipping with small, fast teams.