AI solutions tailored to your domain, your data, your business.

Domain-specific chatbots and web apps with AI at their core. Built on modern LLM architectures and an agentic approach. For small and mid-sized companies, at a price that pleasantly surprises.

5.0 / 5average of 2.4 projects per clientBratislava & Stockholm on site

AI at the core of your business!
Not just another weekend experiment.

My clients usually aren't AI rookies and yet they still entrust their projects to me. ChatGPT, Lovable, Claude, first automations in n8n. It works for a while, then it starts to creak — inconsistent outputs, can't quite ship it, something's always missing or could be better. Sound familiar?

13yearsTech product leader
2+yearsAI hands-on developer
7activeClients small AI studio
Portrait of Jaro RaisEN / SK / CZ

From an endpoint to a full application

Sometimes an AI layer on top of an existing system is enough — endpoint, integration, module. Other times it makes sense to build the whole app from scratch with AI at the core. And because AI also speeds up the build itself, you get it for far less than a traditional custom build. Frontend, backend, AI layer, deployment.

AI Chatbots
01

AI chatbots that truly understand your business

A domain-specific agent that works with your data, knows your business and decides in context. Built on agentic architecture, modern LLM techniques and a retrieval pipeline tailored to your documents.

AI Agents & Automation
02

AI Agents as the cornerstone of process automation

A workflow built on top of Claude that processes emails, documents, calls and data, and makes decisions in the context of your business. No rigid if-then rules. Real LLM reasoning, wired directly into your tools.

AI web apps
03

From process to product

Where you live in spreadsheets, tabs and manual steps today, I'll build a web app with AI at the core. It works with your data, makes decisions, learns your business. Frontend, backend, AI layer, deployment — all in one piece.

Projects & References

I work with clients from their very first AI project — and they keep coming back with new ideas. Their loyalty is the best calling card. Ask them yourself!

Video AI chatbot & Social content automation

I came to Jaro with an idea. I wanted an avatar from the future that would help recruit people to the team straight on the website. Today we use AI together to build social content, we create reels with the avatar, and we've sped up our whole communication process.

Igor Ulehla
Igor UlehlaCEO · Real Group
Solution in briefVideo AI agent with an avatar (Amélia) for recruiting brokers: RAG pipeline over internal materials, dashboard and a fallback chat mode. A multi-agent system keeps response quality and tone in check. Deployed as a widget on the website and live at conferences.
Web app with AI in the background

We had loads of data, but it was scattered across Excel files and systems that didn't talk to each other. Jaro helped us bring it together. He processed the inconsistent data, turned it into interactive dashboards and converted static tables into tools the whole team and our clients use daily.

Juraj Kadlec
Juraj KadlecCEO · Innovations
Solution in briefConsolidation of scattered data from spreadsheets and disconnected systems. Out of inconsistent tables came interactive dashboards used daily by the internal team and by clients.
AI chatbot module into an existing app

Jaro joined the project at the moment we needed help and direction. He saved what could be saved and pushed it to a working result. Today we work with him on more AI solutions for our clients.

Lucia Lalka
Lucia LalkaCEO · Eduvision
Solution in briefRescuing an AI project already in motion and seeing it through to a working result. From there, a series of AI solutions for end clients in e-learning and digital products.
AI Agents & Automation

Jaro is the Swiss army knife of any team. Versatile, sharp and always ready to do something. At Habitable he tackled every challenge with ease and tenacity. Jaro doesn't wait for solutions — he ships them.

Juraj Rosa
Juraj RosaCEO · Habitable
Solution in briefA broad palette of AI work across the team: architecture, prompt engineering, integrations and rapid prototyping. We'll fill in the specific projects manually.

We pick technology pragmatically!

Not every problem needs an agentic system with a vector database. Sometimes a well-placed prompt inside an existing workflow is enough. I'll explain to you what we're building and why, so you can live with the solution long-term — without needing to keep me on retainer.

  1. 01

    Working with data and the domain

    The layer that decides output quality

    Every project starts with data. Spreadsheets, PDFs, emails, call transcripts, CRM exports, knowledge bases. I take messy inputs and build a structure that LLMs and your team can actually use. Without a solid data layer, any model is just an expensive toy.

    • RAG pipeline
    • Knowledge extraction
    • Domain discovery
    • Scattered-data consolidation
    • Vector databases
    • Goldset evaluation
    • Multi-tenant data
  2. 02

    AI architecture and prompt engineering

    How an agent thinks and when it says no

    A prompt isn't a sentence in ChatGPT. It's a system: a rulebook, context, few-shot examples, validation layers, fallbacks, crisis protocols. An architecture that holds up even when a user types something you didn't expect. Plus evaluation that measures improvements, not feelings.

    • System prompt architecture
    • Multi-layer prompting
    • Few-shot design
    • Guardrails & safety
    • LLM as judge
    • Conversational design
    • Crisis protocols
    • Session management
    • Python dev
  3. 03

    Agentic workflows and integrations

    Workflows that decide in context

    Processes built as an agent, not as rigid automation. Claude decides on its own when to hit the CRM, when to call the billing API, when to pull a document through an MCP server. It handles emails, calls and documents and reasons in context. Without the limits of no-code.

    • Agentic workflows on Claude
    • Claude skills
    • MCP servers
    • API integrations
    • Webhook orchestration
    • Automated testing
    • Long-running tasks
    • Video agents (D-ID)

Frequently asked questions

The questions I get most often before the first call.

How much does an AI project like this cost?
It depends on scope, but as a rough guide: a simple chatbot or workflow starts in the low thousands of euros, a full AI web app sits higher. I always start with a discovery call where we walk through your use case — you'll leave with a concrete estimate, not a price list that misses reality.
Where does our data end up?
I work with LLMs via API (mostly Anthropic Claude), which means your data is not used to train models. I host apps on European clouds (Railway, Supabase). For sensitive data I can deploy a separate instance or an on-prem solution. We'll cover this in discovery.
Which AI do you work with?
Primarily Claude from Anthropic, which is among the strongest models today for real business work: reasoning, document handling, agentic workflows. When it makes sense, I combine it with other models or open-source alternatives. Picking the model is a technical decision driven by the use case, not by preference.
What happens if we stop working together?
Everything I build is yours: code, documentation, access. Apps are built so any competent developer or agency can pick them up. No vendor lock-in, no black boxes. The hosting layer (if you want me to handle it) is optional.
What does working together look like?
We start with a discovery call (free, ~45 minutes) where we walk through the problem and I propose an approach. If it makes sense, I send a proposal with scope, price and a timeline. During the project we work in short iterations. You see what's being built along the way and give feedback before anything is "done".
Who runs it once the project is done?
After deployment I offer three care tiers: from passive monitoring to active maintenance and development. You pick based on how critical the app is for your business. If you want to run it internally, no problem — I hand over the project with documentation.

Shizune
my AI twin

I built Shizune as my AI twin. She knows my services, my projects and my working style. Ask her the things you'd ask me — without waiting for a slot in my calendar.

  • Knows my portfolio, references and approach for each project
  • Video mode that responds in real time, as if you were on a call
  • Can book you an intro call with me right inside the chat