Development · Integrations · Testing · Maribor, Slovenia
AI, websites, development, testing, security
One point of contact from idea to production — AI wired into the system, not bolted on.
- 07 projects live
- 5–7 agents / project
- 03 parallel projects
- 1 AUG accepting from
Development · AI · Testing · Security
Services
All from one builder, full stack. Short intro call, proposal in 48 hours, daily delivery log.
- 01
AI integrations
LLM assistants and agents inside your existing systems
MCP · LLM · RAG · function calling · Claude · OpenAI
- 02
Web development
AI-native web apps, full stack
TypeScript · React · NestJS · PostgreSQL · Docker
- 03
AI testing & QA
Regression in hours, not weeks
Playwright · Chromium · WebTesterAI · AIIOtalk · MCP
- 04
Security testing & pentest
Kali Linux + WebTesterAI MCP, orchestrated by agents
Kali Linux · OWASP · Burp · nmap · sqlmap · wpscan · WebTesterAI · AIIOtalk
- 05
MCP and agent automation
Autonomous dev and test loops
MCP · AIIOtalk · Claude Code CLI · SQLite
- 06
WooCommerce and WordPress
AI-native management — conversation as interface
WooCommerce · Elementor · WordPress · AgenticWP · MCP
- 07
WordPress plugin development
Custom plugins — WooCommerce, Elementor, Gutenberg, admin tooling
WordPress · PHP · JavaScript · React · Gutenberg · WooCommerce API · Elementor · MCP
- 08
Maintenance and SLA
Monthly and annual contracts for WordPress and custom applications
WordPress · WooCommerce · NestJS · Cloudflare · monitoring · backups
- 09
B2B / B2C website
Fast, secure site on Cloudflare + Astro
Astro · Cloudflare · R2 · D1 · Stripe · WebMCP
Which service do I need?
Quick orientation
- You're building a site or app from scratch
- Websites / Web apps
- You have an existing system, want an AI agent
- AI integration
- App is in production, you need regression
- AI testing + QA
- Written proof of security for auditor / buyer
- Pentest
- WordPress / WooCommerce store
- AgenticWP (product)
How I work
Approach
- 01
Short paths, no hand-offs.
Code, tests, deploy, and reporting — all in one flow. Fast iterations, less translation between teams.
- 02
AI-native, not AI-added.
Assistants are wired into the data model from day one. Conversation is the interface.
- 03
Tested by agents.
AIIOtalk and WebTesterAI run the regression suite. 300 bugs found and fixed in two hours.
- 04
Built in the open.
Portfolio and source available on request. No black box.
AJPES · Bizi.si
Company
Public data from AJPES and Bizi.si.
/ Who I am
Hands-on with computers since 1999, paid for code since 2008. FERI (University of Maribor), software engineering. Native Linux. Pre-AI era: WordPress, Drupal, own POS product MikroBlagajna (pre tax-receipt confirmation). 2014 at the Maribor Development Agency. Računalničar s.p. since 1 April 2021. AI agents, MCP, agent-driven testing since 2024.
/ Timeline
- 1999
- computers (enthusiast)
- 2008
- dev · FERI · Linux
- 2014
- MRA · Open Source Software
- 2021
- Računalničar s.p.
- 2024
- AI agents · MCP
/ Registration
- Registered name
- Računalničar, Sebastijan Bandur s.p.
- Representative
- Sebastijan Bandur
- Address
- Marjeta na Dravskem polju 39, 2206 Marjeta na Dravskem polju, Slovenia
- Registered
- 1 April 2021
/ Tax & statistics
- Tax number
- 68283270
- Company ID
- 8839883000
- VAT liable
- No
- SKIS
- S.14100 — Self-employed employer
- Activity
- Computing and IT
/ Banking
- IBAN
- SI56 1010 0005 9138 955
- Bank
- Banka Intesa Sanpaolo d.d.
- info@racunalnicar.eu
- Phone
- +386 70 420 106
- Location
- Maribor, Slovenia
- Availability
- New projects — talk first