00Engineer & founder

I build systems that earn their keep.

Production AI systems and custom software for companies that want a reliable solution delivered on time.

0115+ years building web applications
02Production RAG system, live
03My own SaaS products
Petr Vojáček
Co-founder & CTOIdeaWood
Co-founder3DCap

Where and how I build

Dozens of delivered projects, information systems and e-shops. Below is what runs in production for real clients.

IDEATECH CMS

Our own e-commerce platform running dozens of client stores. I'm its architect and technical lead.

PHP TypeScript Nette
AI02

Production RAG system

A production RAG platform that turns piles of documents into structured data. AI extraction into typed tables, Czech-optimized hybrid search, on-premise deployment.

TypeScript LLM Vector search
Case study coming soon

Woodsoft

A cloud platform for the timber trade and forestry.

SaaS Multi-tenant PHP

Sysel

A mobile app for loggers: timber cubing and order tracking straight from the field.

Mobile Offline-first TypeScript

Trading systems

Execution and backtesting infrastructure built from scratch at 3DCap. Evidence of engineering depth, not a service on offer.

Backtesting Execution Real-time data

What I'll build for you

Complex custom systems

An information system, internal app or platform you can't buy off the shelf. I design the architecture, write the code and take the system to production. You talk to one person the whole time, someone who knows every part of the system and owns the deadlines.

Discuss the project

AI automation

AI wired into your actual data and processes, not a demo that looks good on a call. The latest project in production: a RAG system that turns piles of scanned documents into structured data. It finds a specific order in seconds, has search optimized for Czech and runs on-premise, so data never leaves the company.

Discuss the project

Web applications

You get a website or application that holds up even if your company grows tenfold. I build on technology I can maintain long term, not whatever happens to be trendy. The result is fast, secure and ready for the next stage of growth.

Discuss the project

How it works

01

Initial call

30 minutes, free

You tell me what you want to build or what's slowing you down. I'll tell you whether I can do it, how I'd approach it, and what I'll need. No strings attached.

02

Digging into the brief

One or two meetings, online or at your office

We go through your materials, existing systems, and everything the new solution has to connect to. For process automation it pays to visit and see the work first-hand; for a web app, a video call is usually enough.

03

Solution proposal and quote

5 to 10 business days

You get a concrete proposal: architecture, exactly what I'll deliver, timeline, and price. Before you commit to anything, you know what I'm building and why.

04

Development and deployment

First version from 3 weeks, larger systems in stages

I build, test, and show what already works as I go. I deploy to production, and after launch I keep the system running under an SLA.

Operations under control

Every project comes with an SLA contract, and NDA if needed. I handle maintenance via a monthly retainer, scaled to the size of the solution.

Who stands behind this

I've been coding for over 15 years and I still love it. I'm driven by curiosity about how things work under the hood, and the pull toward the most efficient path to a solution, not just the first one that happens to work. I don't disappear into the code. I talk to clients and translate their business need into a technical decision that actually holds up.

Depending on the scope, I work solo or embed directly into the client's team. Behind me stands the IDEATECH network for development capacity and 3DCap for data and algorithms, so I pull in specialists whenever a project needs them. Your point of contact never changes: it's me, throughout the whole project.

Behind that is 15+ years of web application development, systems delivered on the agreed date, and production deployments running for real clients.

Companies usually reach out when they need to design and deliver a complex system, wire AI into real operations, or build a web application their company can keep growing on.

Fast learner in new domains Bridge between business and dev Technical team leadership Client communication Designing efficient solutions
Get in touch

Backend & Languages

PHP TypeScript Python Node.js Nette Symfony REST API

Frontend

JavaScript React HTML & CSS

Infrastructure & DevOps

Docker GitLab CI/CD Rancher Portainer Elasticsearch Linux Monitoring

Trading & Data

Backtesting Automated Trading Exchange APIs Data Analysis Strategy Optimization

E-commerce

Custom Platforms Payment Integrations ERP Systems