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Iurii Rogulia, IT partner for business & fractional CTO. Professionally building software since 2001.

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TMI Iurii Rogulia
VAT ID: FI29845875
DUNS: 368664211
Lappeenranta, Finland 🇫🇮

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Iurii Uses: #RAG

1 project · 2 articles · 1 review

RAG

Retrieval-Augmented Generation (RAG) enhances language model responses by fetching relevant context from a vector database before generation. It grounds AI answers in your own documents rather than relying on training data alone.

Projects

Pikkuna — i18n RAG AI System
Pikkuna — i18n RAG AI System
December 15, 2025
Pikkuna — i18n RAG AI System

RAG system on OpenAI and Upstash Vector with 30 language support. Includes streaming chatbot, hybrid search (semantic + keyword), AI ticket classifier, and

Stack

Next.jsReactTypeScript

Libraries

Vercel AI SDKnext-intlassistant-uiZod

Databases

Upstash VectorRedis

Services

OpenAIUpstashVercel

Topics

RAGAI Chatboti18nE-commerceCTO

Articles

How to Add AI to an Existing Product Without Rewriting It
May 4, 2026· 11 min
How to Add AI to an Existing Product Without Rewriting It

Add AI to an existing product without a rebuild. Three integration patterns, how to pick the right one, and what production-ready AI actually demands.

Stack

Next.jsTypeScript

Libraries

Vercel AI SDK

Databases

PostgreSQLRedisUpstash Vector

Services

OpenAI

Topics

RAGArchitectureSaaSE-commerce
i18n RAG Chatbot Architecture (25 Languages, Production)
October 27, 2025· 9 min
i18n RAG Chatbot Architecture (25 Languages, Production)

RAG chatbot for e-commerce: resolve 70% of support queries across 25 languages — ingestion pipeline, hybrid search, confidence thresholds, and streaming UI.

Stack

Next.jsTypeScript

Libraries

Vercel AI SDK

Databases

Upstash Vector

Services

OpenAIUpstashZoho

Topics

RAGAI ChatbotE-commercei18n

Reviews

“

Our support inbox was drowning — most tickets were repeat questions our docs already answered, but customers weren't finding them. Iurii built us a retrieval-based assistant on top of our existing knowledge base in about three weeks. It answers around 60% of incoming questions correctly and hands the rest to a human with full context already attached. What I appreciated most was that he was honest about where LLMs would fail before we started, so there were no surprises later.

Anna Lindberg 🇸🇪

Head of Operations

Topics

AIRAGSupport Automation

Service: ai integration

Iurii RoguliaAvailable

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