J&O ServicesWrite to me
TAKING ONE CLIENT AT A TIME

I build AI agents and automation systems for small Dublin businesses.

Properly, and one at a time.

I'm Jan. I run my own servers in the EU and hold IBM's professional certificate in RAG and agentic AI.

Your customers write in whatever language they like — your new AI agent replies in the same one.

See what I build

No packages. No sales calls. Most projects land between €1,500 and €4,000, fixed price in writing. I'm not registered for VAT, so no VAT is added.
After launch, hosting and care is €400 a year. The AI and WhatsApp accounts are in your name and billed to you directly — I don't resell them.

Hi — what's gone wrong?
Boiler's leaking under the stairs
Sorry to hear that. Can you send me a photo?
Photo sent
Thanks. What's your Eircode and a number to ring you back on?
D02 XY45 — 085 123 4567
Got it — leaking boiler, D02 XY45, photo attached. Tom will ring you this evening.
Perfect, thanks

What I Build

Six parts of one system.

Built for one client at a time. If what you need isn't here, ask anyway — the answer is usually yes.

running today

Website agent

Answers in seconds, at three in the morning, in whatever language they write in. Takes the whole enquiry — what's wrong, a photo, an Eircode, a number — and sends it to your phone. It won't quote a price or promise a date. That stays with you.

running todaywith a partner

WhatsApp and phone

On WhatsApp it replies the moment a message lands — a text, a photo of what's wrong, or a voice message, in whatever language it arrives in. Phone is a build on top of that, delivered with a partner: your line rings first, and if you can't take it, the agent gathers the same details and passes them on. A missed message stops being a lost job.

built to order

Follow-up

Nothing goes quiet. The quote nobody answered, the invoice past due, the customer who asked three weeks ago and vanished. It chases them in your tone, on its own schedule, and tells you only the outcome.

built to order

Quotes and invoices

A voice note from the van becomes a finished document — priced from your own rates, on your own letterhead, addressed to the right person. You read it and send it. The evening admin disappears.

built to order

Inbox

Reads what came in, sorts it, drafts the replies you'd have written anyway. Enquiries to your list, invoices to your accountant, the rest can wait. Nothing leaves without your approval.

running today

One source of truth

Every agent above answers from the same place — your price lists, manuals, supplier terms, past jobs. Change something once and every channel knows. Nothing invented: every answer comes with the source it came from.

running today — built and in use · built to order — built for you when you need it · with a partner — needs a third party and has running costs

What's possible

The six services above are the usual combinations. They're built from these blocks — and blocks can be combined any way your business needs.

Channels — where the agent meets your customers

Website chatrunning today
WhatsApprunning today
Emailbuilt to order
Phone and voicewith a partner
SMSwith a partner

What it can do

Answer from your own documentsrunning today
Take a complete enquiryrunning today
Reply in any languagerunning today
Read photos and documentsrunning today
Understand voice notesrunning today
Sort and route messagesbuilt to order
Draft quotes, invoices and repliesbuilt to order
Act in other systemsbuilt to order
Follow up on a schedulebuilt to order
Wait for your approval before actingbuilt to order
Summarise and reportbuilt to order

Connects to

Google Workspace and Microsoft 365built to order
Spreadsheetsbuilt to order
Calendars and bookingsbuilt to order
CRM systemsbuilt to order
Accounting softwarewith a partner
Payment linkswith a partner

Your customers' conversations are stored on servers I run in Germany (EU). The AI model itself is provided by Anthropic under a data processing agreement. Every agent says it's an AI, as the law requires. Nothing is resold — the person who builds it is the person who maintains it.

How It Works

Four steps, and no surprises.

01

We talk

A few messages, or a coffee if you're in Dublin. You tell me what eats your time. I ask a lot of questions. Free, and there's no pitch at the end of it.

02

I look properly

I go through how the work actually flows today. Sometimes the answer is that you don't need AI at all — I'll say so.

03

Fixed price, in writing

One number, what's included, how long it takes. You decide with the whole picture in front of you.

04

I build it and stay

I set it up, test it with you, and I'm one message away afterwards. Not a ticket queue — me.

I take one client at a time. It means you get all of my attention, and it means there may be a wait. I think that's the right trade.

Background

Eight years on a front desk. Now I build them.

Jan Odstrcilik, J&O Services

No resold platform sitting between you and your data — what I set up is what I maintain.

I got my first PC at twelve and never really stopped. Reception and access control is where I learned what that desk is actually for. If it breaks at seven in the morning, I'm the one who fixes it.

How I run it

My own serversInside the EUGDPREncrypted in transitMonitoredBacked up

What I build with

PythonFastAPIDockerLinuxRAGAnthropic Claude

IBM · 2026

RAG and Agentic AI

Professional Certificate

Google · 2026

Cybersecurity Certificate

How I secure what I build for you

Czech and English. If something needs a formal security audit or a solicitor, I'll tell you that instead of guessing.

Get in touch

Tell me what's slowing you down.

No form to fill in and no obligation. Write to me, or talk to the agent — here in the corner, or on WhatsApp. I read every conversation and reply in writing.