I build software with AI agents. A whole portfolio, on my own.

And I help mid-sized companies build the right thing with AI: use case, architecture, model choice, without locking into a single vendor.

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In production, as of October 2026

  • Live

    FieldProFlow, with paying customers

  • 8,000+

    automated tests

  • 80+

    startups accelerated

Four products, one person.

Agents write the code. I decide what gets built and when it is allowed to ship. The status next to each one is honest.

Live

FieldProFlow

Field sales software for independent reps and brands in FMCG retail.

Plan visits, capture them right in the store and reuse the same data for orders, reports and invoicing. On iPhone and Android, with or without a connection.

100,000+
verified retail locations
Multiple principals
data kept separate per principal
Offline
works without signal in the store
E-invoicing
ZUGFeRD and XRechnung
fieldproflow.com
FieldProFlow in the browser: weekly planner of a field sales rep with demo data
FieldProFlow on a phone: the day plan with route and next store visit, demo data
Real product screens with demo data. The product is in German.
  • In build

    Knowhand

    The notice board for peer help in companies with 20 to 500 people, under the company’s own name, logo and colours.

    knowhand.com
  • Alpha

    Restklar

    A calm budgeting app for Germany and Austria: takes fixed and yearly costs off first, works without bank access.

    restklar.com
  • Pre-launch

    No BS IO

    First-line support for web products: answers product questions from verified knowledge and hands over to the team where an answer reaches its limits.

    no-bs.io

Plus my own tools that you can’t buy: idea evaluation, a contact database, sales automation. They are why one person can run all of this.

Agents write 95 to 99% of the code. The rest is the actual job.

With agents, almost anyone can build a demo in an afternoon. Software that customers pay for needs the part underneath.

What I own

Product
what gets built, and just as important, what doesn’t
Architecture
so it keeps running when an API goes down
Tests and release gates
when something is good enough to ship
Operations
what happens when real customers use it
DemoWaterline
  1. Multi-user
  2. Permissions
  3. Security
  4. Payments
  5. Sync
  6. Offline
  7. Operations
Demo: what fits in a video.Underneath: what customers pay for.

For mid-sized companies: the unglamorous part of AI.

Finding the use case that is worth it and the model that fits. Often that’s a smaller model you can run in Europe, sometimes it’s no AI at all. Agentic AI and LLMs where they earn their place, and an architecture that keeps running when an API goes down.

AI architecture review Start here

A written report on use case, model choice and dependencies, with a clear recommendation: build, buy or stop. Plus a 90-minute walkthrough.

Duration
1–2 weeks
Price
from €1,500fixed price
Ask about it

Agentic coding intensive

Your dev team works with me on your own repo: setup, working with agents, review and limits. Afterwards it runs without me.

Duration
2–3 days
Price
from €6,000
Ask about it

Prototype sprint

A working prototype plus an architecture document, so it’s clear what production still needs and what it costs.

Duration
2–4 weeks
Price
from €7,500fixed price
Ask about it

Interim AI and product lead

I own roadmap, architecture, vendor choice and acceptance until your team can carry it.

Duration
1–2 days a week, 3–6 months
Price
from €4,500per month
Ask about it

Talks and executive briefings

For leadership teams, boards, associations and conferences: what agentic building can do, what it can’t and what it costs.

Duration
45–120 minutes
Price
on request
Ask about it
  • Every format starts with a free 20-minute call. If it isn’t a fit, I’ll say so.
  • Startups: prototype sprint once funding is in place. Until then, the AI Factory Austria formats are the better start.
  • Prices exclude VAT where applicable. My workshops at AI Factory Austria AI:AT are separate from these offers.

First AI product in 2016. First company in 2013.

Before my own products came corporate work, advisory and a lot of startups: 80+ accelerated, 150+ juries and trainings. Today that helps with both, building and explaining.

Stations

  1. since 2026

    AI Factory Austria AI:AT

    Consultant AI Acceleration & Growth

    The Start AI, Build AI, Scale AI and Executive Track workshops for SMEs, startups and leadership teams. Mentor for startups and at the Public AI Hackathon.

  2. ongoing

    FieldProFlow

    Founder

    Product, architecture, operations and sales of a field sales SaaS, built with agents.

  3. 2026

    UNDP AltFinLab

    SDG accelerator

    Helped build the accelerator and ran workshops there.

  4. 2024–2025

    Cointelegraph Accelerator

    Head of Program

    40+ startups, jury and pitch events with founders and investors, workshops in Dubai. Speaker at Paris Blockchain Week 2025.

  5. since 2022

    Valuex AG

    Co-founder, shareholder

    Boutique advisory for Web3 companies and startups, CEO for the first two years.

  6. 2016–2019

    Siemens Healthineers

    Global communications

    For the company’s first AI product, the AI-Rad Companion, from launch.

  7. 2013

    rethynk / kookee

    Founder

    My first software company: tools for digital publishing.

Paul Kruegel speaking on stage in front of an audience
Talks, juries and workshops, most recently as a speaker at Paris Blockchain Week 2025.

Worked with and for

  • AI Factory Austria AI:AT
  • Siemens Healthineers
  • UNDP
  • Cointelegraph
  • Deloitte Digital
  • Valuex
  • adidas
  • Nestlé Schöller
  • AIDA Cruises
  • Sky
  • Carl Gross
  • Brand Club Austria
  • Guiding Innovators Hub Vienna
  • NUREG
  • rethynk
  • Playboy Deutschland

What others say

He has a rare ability to look at a project and quickly get to the core business risks and opportunities.

Chris ScibiorekCointelegraph Accelerator · LinkedIn recommendation, Nov 2025

His mastery of strategic conceptualization and actionable execution is second to none, parsing the signal from the noise.

Anthony FrancisCointelegraph · LinkedIn recommendation, Nov 2025

He gets the space, asks the right questions, and brings clarity when it's needed most.

Pawel LaskarzewskiNomad Fulcrum · LinkedIn recommendation, Jul 2025

Paul brings a rare blend of strategic clarity and hands-on leadership in marketing, positioning, and reputation-building.

Anna ShakolaADI Foundation · LinkedIn recommendation, Jun 2025

His remarkable ability to tackle complex challenges with innovative solutions makes him an invaluable asset to any team.

Oliver SchmittValuex, co-founder · LinkedIn recommendation, Jun 2025

Thanks to him the global launch of the AI-Rad Companion was an outstanding success.

Ivo DriesserSiemens Healthineers · LinkedIn recommendation, Dec 2018
All recommendations on LinkedIn

What I’m building and learning right now.

On LinkedIn and X I write about building with agents: what works, what doesn’t, and how to use it yourself.

  1. On siteAm Nachmittag hab ich mit den Teams das Pitchen geübt, und auf einer Folie stand: „Die Daten bleiben in Österreich!“ Ich hätt als Mentor gern noch …LinkedIn
  2. Noteday 2 of the Public AI Hackathon 2.0 at AI Factory Austria.X
  3. TakeIch hab vor einiger Zeit eine andere Außendienst-App selbst getestet.LinkedIn
  4. Build logStripe schickt dir „Abo aktualisiert“.LinkedIn
  5. Noteeu ai policy has real gym-membership energy: big signups, great photos from the opening.X
  6. Notewhat i'm building: one product live with paying customers, 8k tests, three more in the build.X

Quick answers.

Who is Paul Kruegel?
Paul Kruegel (Paul Krügel in German) is a founder and software builder in Vienna, Austria. He builds a portfolio of his own software products with AI agents, including FieldProFlow, field sales software for FMCG retail. He helps mid-sized companies with AI architecture, use cases and model choice, and runs workshops and mentors startups at AI Factory Austria AI:AT.
What does an AI architecture review cost?
From €1,500 as a fixed price, excluding VAT where applicable. Within one to two weeks you get a written report on use case, model choice and dependencies with a clear recommendation, plus a 90-minute walkthrough.
Which tools and models do you work with?
For building, coding agents such as Claude Code and Codex; agents write 95 to 99% of the code while I own product, architecture, tests and releases. For clients I choose the model per task, often a smaller one that can run in Europe, and never with lock-in to a single vendor.
Do you work with startups?
With funded startups, as a prototype sprint. For early stages, the AI Factory Austria formats are the better start.
Where, and in which language?
From Vienna for companies in Austria, Germany and Switzerland, on site or remote, in German and English.
How do we start?
With an email to post@paulkruegel.com and a free 20-minute call. After that it is clear which format fits, or whether none does.

What do you want to build?

A few sentences are enough: what it’s about, who’s involved, by when. I reply personally.

Start a conversation

Vienna. German and English. LinkedIn · X @paulkruegel

Portrait of Paul Kruegel