Sound off. Still moves.

Johan Hegener, founder and AI engineer in Swifterbant, NL

I build AI that picks up.

Voice agents that answer the phone. Helpdesk agents that read the ticket first. A human stays on the switch.

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Cowcierge, Live, pre-launchBram, Built at TOSCMoss, Built, self-hostedMuse plays NetHack, BuiltLoei, Live

In this reel

Five projects in this reelContents

Essentials

Johan Hegener, founder and AI engineer.

Swifterbant, the Netherlands. Dutch and English.

IT Specialist at JYSK since 2022.

Works with Microsoft Graph, Odoo, Twilio, ElevenLabs and n8n.

Get the CVMail meLinkedIn

Three things I built

  1. Bram: an AI helpdesk agent I built at TOSC. Read-only by default. A human approves every change.

  2. Cowcierge: a multi-tenant voice AI SaaS I built on my own. Live, pre-launch.

  3. Moss: a workspace for running AI companies, self-hosted on my own server.

Selected work

All work

Also built

How I build

  1. Brief

    I write the brief and the house rules.

  2. Build

    A crew of AI coding agents builds in parallel.

  3. Review

    Adversarial reviews, then fix and verify.

  4. Approve

    Nothing ships until I have checked it.

  5. Run

    I keep it running: health checks and automatic rollback.

The reel in four stills

Play the reel
Johan Hegener, portrait photo.

I spent years answering the phone and closing tickets. Now I build the software that does it, and I still check its work.

About

Tell me what keeps ringing.

Pick the door that fits.

  • Hire me

    AI engineer and Forward Deployed Engineer roles. Dutch and English, based in the Netherlands.

    Get the CVMail meLinkedIn

  • Work with Loei

    Wil je dat terugkerend werk vanzelf gaat? Dat doe ik bij Loei.

    Loei builds AI agents that take recurring office work off a small business’s plate.

    Work with Loei

  • Talk ventures

    Partners and investors: I’m happy to talk about what I’m building next.

    Mail me

Email

hello@cow.kiwi

Credits

  • Directed, designed and built by Johan Hegener with a crew of AI coding agents.
  • Score: synthesized live in your browser.
  • Music engine: procedural-film by Dean Kuhn (MIT).
  • Type: Anybody, Hanken Grotesk and Martian Mono (SIL Open Font License 1.1).
  • Icons: Phosphor (MIT).
  • NetHack engine in the Muse chapter: neohack.dev by Tobi Lütke. NetHack by the NetHack DevTeam.

Made in Swifterbant. Scored in code, checked by hand. Johan Hegener, Swifterbant, the Netherlands