Business and IT.From briefto production.

I run UPNEXT, lead marketing at Valuo and build with AI, smartly and safely.

Jaroslav Krajča in a white T-shirt, arms crossed, in front of a weathered wall
Jaroslav Krajča

UPNEXT

I founded UPNEXT and run it. We build websites, custom systems and AI that does real work for companies.

upnext.cz
Websites
Sites and shops that can be run without a developer.
Systems
Internal tools and apps built around how the business works.
AI in operations
Assistants and automations wired to the company’s data and tools.
Content
A small new service: photo and video for the brands we work with.

Valuo

Since August 2026 I have led marketing at Valuo as CMO.

valuo.cz
Communication
I decided how Valuo communicates.
Position and focus
I defined what Valuo stands for and what it focuses on.
Technical groundwork
With my team I set up GTM, events, Meta CAPI, analytics and BI.
Content
I produce all the content we use, and every piece of it is measurable.

Own products

Things I build for myself and then release.

  • Parallax: the Agents Home overview with the workspace panel and its agent lamps

    Parallax

    A terminal for working with several AI agents at once. For macOS.

  • Dicta on a phone: a finished call note filed to its customer

    Dicta

    Notes and recordings from any source in one system. A voice memo, a Plaud note, Word, Google Docs, Apple Notes, Notion or its own recording: every time the same clean transcript, sent to your CRM and filed to the customer if they are already there. From your phone, computer or the web.

  • Iris: the inbox with a selected thread

    Iris

    A private email app for the Mac. In development.

AI in practice

No online courses. Things that run.

  • Teams

    Rolling out Claude and ChatGPT so that people actually use them.

  • Agents

    Automations that take over routine work through MCP connectors.

  • Development

    I build software with Claude Code. This site too.

  • Own server

    An AI server with an RTX 5090 that runs offline at the client. Speech-to-text and assistants, and the data never leaves the company.

After work, I shoot

Photography is my hobby. Concerts, gear and cities at night.

Prago Union

Concert, 12 June 2026 · 7 photos

Studio

Recording studio · 4 photos

Wrocław

Neon and Motoclassic · 4 photos

About

I studied IT at secondary school and business at university. I have done both at once ever since.

I run UPNEXT, lead marketing at Valuo, build my own products with AI and take photos in my spare time.

Let’s connect.

LinkedIn is the fastest way to reach me.

Connect on LinkedIn