One signal, four shapes
The same particles redraw themselves as you scroll: the agent network, a voice, a chest X-ray, the northern lights. Four stations, each with a number you can check.
01 · Agents2026
Founding Engineer at Kobe AI until October 2026: an AI superconnector that searches your own network for the best path to a person and only sends after you confirm. Cloudflare Workers backend, Electron client, extended MCP server.
~470 commits in three full-time weeks, October 2026
02 · Voice2026
At MitJulia I work on Julia, an AI receptionist that answers salon calls, checks the calendar and books. Twilio, ElevenLabs, AWS Lambda, DynamoDB, TypeScript; a simulator with an LLM judge tests the agent systematically.
100+ salons live on the voice agent, November 2026
03 · X-ray2024
PneuNet started at school: a convolutional network written from scratch in NumPy to detect pneumonia on chest X-rays, then seven architectures compared in PyTorch, lung segmentation and class activation maps.
>95 % segmentation on the project's own validation split
04 · North2026
The Arctic Sprint: 17 days by campervan from Berlin through the Baltics to Rovaniemi and the Lofoten, building the Kobe MVP on the road, then straight to START Hack in St. Gallen.
17 days, nine countries, one MVP
Signal / numbers
Where I have been
Accelerator 
Competitions 
Hackathon 01 — Selected work
Finds the warmest path to the person you need, through your own network.
~470 commits in 3 weeks · Oct 20262
Ask Kobe
Your personal Superconnector
Talk to a payments lead at a European fintech
Introduce me to someone who leads payments at a European fintech. We want feedback on our checkout API before the pilot.
I found three warm paths to payments leaders. Lena is your strongest: she led Finlo’s seed round and you talk to her often. Review the plan and the drafts below.
Talk to a payments lead at a European fintech
The Plan
Ask Lena on WhatsApp to introduce you to Tobias, with a short message they can forward.
Ask David on LinkedIn to introduce you to Mara, with a short message they can forward.
1 more contact path included below.
After you approve, Kobe sends the messages and follows up to arrange your conversations. For introduction paths, Kobe waits until you are connected before contacting the target directly.
Approves all current message drafts in this Mission. Sends after a 30 second countdown.
Lena led Finlo’s seed round. You have exchanged 14 messages with her since August.
Hi Lena, hope Lisbon was good! Quick ask: could you introduce me to Tobias at Finlo? We open our checkout API pilot in January and his view on European payment flows would help us a lot. I wrote a short note below that you can forward. Thank you!
Forwardable message
Hi Tobias, I’m Alex, building checkout infrastructure at Northbeam. Lena suggested you as the person to ask about payment flows in Europe. Would you have 20 minutes in the next two weeks? Happy to share what we learned from 40 merchant interviews.
Sent as a separate message immediately after your request.David and Mara worked together for four years. You met David at two founder dinners this autumn.
Hi David, good to see you at the dinner last week. Would you be open to introducing me to Mara? We’d love her take on our checkout API before the pilot. A short note to forward is below.
Forwardable message
Hi Mara, I’m Alex from Northbeam. David mentioned you know payments at scale better than anyone. Could we borrow 20 minutes of your time for feedback on our checkout API?
Sent as a separate message immediately after your request.Jonas is a first-degree connection and replied to you within a day last time.
Hi Jonas, it’s been a while since the API meetup. We’re opening a checkout API pilot in January and I’d value your feedback as someone who ships payments products. Up for a 20 minute call next week?
Sent. I’ll follow up with Lena and David on Thursday if they haven’t replied, and tell you as soon as an introduction is made.
MitJulia (formerly Friseurtelefon)
Julia picks up 24/7 and books straight into the salon’s booking system.
100+ salons · Nov 20261
Sat 7:42 pm · outside opening hours
Julia is listening
Init webhook · client recognised: Sophie
Hi Sophie, this is Julia, the digital receptionist at Sample Salon. How can I help?
Hi! I need an appointment next week, ideally Tuesday after work.
Sure. Wash, cut and blow-dry with Mia again?
Yes, exactly.
get-appointment-availabilities · Tue · Mia → 2 slots
On Tuesday Mia is free at 17:30 or at 18:30. Which suits you better?
18:30 is perfect.
create-booking → appointment-booked
Done. Your appointment is on Tuesday at 18:30 with Mia. See you then!
Thanks, bye!
Revenue
Bookings
Calls
Booking system · Tuesday
Julia books straight into the salon’s own booking system.
Calls
| Date | Time | Duration | Name | Call reason | Call result | Booked revenue |
|---|---|---|---|---|---|---|
| Sat | 19:42 | 1:12 | Sophie | Booking | Appointment booked | 58 € |
| Sat | 17:58 | 0:48 | Paul | Change | Appointment moved | – |
| Sat | 16:12 | 1:31 | Emma | Transfer | Transferred | – |
| Sat | 14:40 | 0:36 | Unknown | Price | Information given | – |
30 teams from ~700 applications. I kept shipping Kobe and built the pitch deck in a day.
USD 100,000 · no equity
Result as announced to the teams; written confirmation pending.
Built in NumPy first, then seven architectures benchmarked in PyTorch.
Jugend forscht 2024: Thuringian state winner and a special prize at the national final.
> 87 % classification · > 95 % segmentation5
Arrow keys move the lens.
DFL × AWS × EintrachtTech
A fan app with an AI chat on AWS. Team of three; I owned the repo.
FAQs
Experiment · nie in der finalen App · keine echte Aufnahme
0:00
LIVE 67'9. Spieltag
1:0
K. Osei 41'
Vorbericht
Topspiel am Samstagabend: Rheinhafen empfängt Bergwald
Tabelle
Talstadt baut die Tabellenführung aus
Statistik
Elf Tore in neun Spielen: Brandner trifft und trifft
Im Hackathon-Build war dieser Tab ein Platzhalter. Vorschau mit erfundenen Daten.
Im Hackathon-Build war dieser Tab ein Platzhalter. Vorschau mit erfundenen Daten.
Highlights · vor 18 Std.
Highlights: Borussia Talstadt – SC Altmark
Tore · vor 20 Std.
Alle Tore des 9. Spieltags
Analyse · vor 1 Tag
Taktik-Analyse: Pressing im Mittelfeld
Clip · vor 2 Tagen
Parade der Woche
Im Hackathon-Build war dieser Tab ein Platzhalter. Vorschau mit erfundenen Daten. Keine echten Videos.
| # | Verein | Sp | Diff | Pkt |
|---|---|---|---|---|
| 1 | Borussia Talstadt | 9 | +15 | 22 |
| 2 | FC Rheinhafen | 9 | +11 | 20 |
| 3 | Eintracht Lindenau | 9 | +7 | 19 |
| 4 | SV Nordheide | 9 | +4 | 17 |
| 5 | VfL Seeburg | 9 | +3 | 15 |
| 6 | 1. FC Bergwald | 9 | +2 | 14 |
| 7 | Union Ostkreuz | 9 | -1 | 13 |
| 8 | SC Altmark | 9 | 0 | 12 |
| 9 | TSV Mühlbach | 9 | -2 | 11 |
| 10 | FSV Weserland | 9 | -4 | 11 |
| 11 | Fortuna Hochfeld | 9 | -4 | 10 |
| 12 | SG Elbtal | 9 | -3 | 10 |
| 13 | Arminia Kieselbach | 9 | -5 | 9 |
| 14 | VfB Sonnenberg | 9 | -5 | 9 |
| 15 | Viktoria Auenland | 9 | -8 | 8 |
| 16 | Kickers Steinfurt | 9 | -7 | 7 |
| 17 | Hertha Moorbach | 9 | -10 | 6 |
| 18 | Rot-Weiß Felsheim | 9 | -13 | 5 |
Champions League Europa League Abstieg
Im Hackathon-Build war dieser Tab ein Platzhalter. Vorschau mit erfundenen Daten.
58%Ballbesitz42%
11Torschüsse6
5Ecken2
79,4 kmLaufleistung77,8 km
Im Hackathon-Build war dieser Tab ein Platzhalter. Vorschau mit erfundenen Daten.
02 — Experience
03 — Now
Team of eight at Prof. Gerard de Melo's AI chair: a multi-year pipeline that detects, tracks and re-identifies wild gorillas in camera-trap video.
End to end, from fleet-wide analysis to the pull request.
Organizing company visits, participant selection and budget.
Details under NDA.
04 — Awards
05 — Moments
06 — Blog
Every project has its own post, most of them with a working demo on sample data. The other posts look back on competitions, trips, volunteering and startup work, each dated close to the event.
This term I'm sitting in on the Deep Learning lecture at HPI. To really understand the material, I rewrote the first part of the course book as a simplified German study site with interactive demos.
In the seminar Building Agentic Products we're working with BMW on a system that spots early warning signs of unplanned machine stops. An interim update, as abstract as confidentiality requires.
Since October I've been in the bachelor's project that re-identifies wild gorillas in camera-trap video. An interim update on how you get into a pipeline that four cohorts built before you.
07 — Contact
Internship, project, or exchange semester. I answer within a day or two.
marvin.heyne@student.hpi.uni-potsdam.de
