About me

• AI agents and LLM applications over your knowledge base, every answer citing a source.
• AI process automation where a rule falls short: invoices, e-mails, data extraction.
• Automation and integrations between systems that cannot talk, no ERP replacement.
• Data, RAG and backend: private search over your documents.
• Custom web development, no templates, no plugins.
• Web, apps and consulting: internal tools, audits, code review.
• Ads and performance marketing on Meta, tied to measurement.
• AI training and Article 4 AI Act training in English across the EU.

Pricing is public: consulting CZK 1,200 an hour, websites from CZK 12,000, automation and AI agents from CZK 25,000. No VAT on top.

1. Intro call, 30 minutes, free. Sometimes the outcome is that you need nothing.
2. Written proposal with scope, fixed price and timeline. Extra work only once approved.
3. Build in iterations, with a working version on a link.
4. Deployment and handover of code, documentation and access.
5. Ongoing care: maintenance and further phases.

Usually 50% up front, 50% on handover. Once paid in full the code and the intellectual property are yours. I start within days to two weeks; defects reported within 30 days are fixed free.

Python and TypeScript, React and Node.js, PostgreSQL and vector databases, language models with a RAG architecture, on Docker and AWS. Model choice follows the data: a commercial API with no retention, or open-source running on your side.

• Cortexia, my own product. A company brain that connects the tools a company already runs and remembers every decision with its reason. Y Combinator expressed interest in funding it.
• Leadora, my SaaS platform for technical pre-sales: answers over company documentation, always with a verified source.
• Galochrom. Out of 228 chemical and pharma companies (Germany, Switzerland, the Netherlands): 143 highly relevant, 1686 contacts, 322 verified e-mails.
• MedicalStore.cz. An AI engine that finds, verifies and scores B2B buyers.
• Optik Dvořák, Autoservis Topinka, Richard Topinka, three client websites in Pilsen.
• Ergosenc, a proposal for a Pilsen startup building a smart ergonomic chair.

The full list is on the projects page; client sites sit behind a password, and the sample case studies use illustrative numbers.

More useful than a list of skills. You hear it on the intro call, not after the deposit.

• I don't automate a process running fewer than roughly fifteen times a day; the saving won't cover the running cost.
• I don't deploy AI where a rule is enough. A rule is cheaper, faster, more reliable.
• I don't build an agent for a company with no documentation. It becomes an expensive guess generator.
• I don't build a website with no content. Without text and photos it ends up like the old one.
• I'm not a team for permanent operations. For a full-time load it's fair to hire in-house.

The site carries my name, the invoice a company name. Not a discrepancy, two roles.

I do the work; this site is my portfolio and contact point. The contracting and invoicing party is always Leadora Technologies s.r.o., the Czech form of a limited liability company, Reg. No. 24624136, Hostěradice 44, 252 82 Kamenný Přívoz, Czechia, in the Commercial Register of the Municipal Court in Prague, section C, insert 444314. Not VAT registered, so quoted prices are final. Details in the terms.

Write a few sentences about what you're dealing with to business@dsak.tech, or call +420 606 123 573. I reply within 24 hours with a price and a timeline, or a pointer to someone who will do it better. Also on GitHub and LinkedIn.