Mariia Kovalchuk

Mariia leads Lonch's AI practice, focusing on integrating language models, machine learning and AI agents into client products. She makes sure AI solutions deliver measurable impact rather than staying an experiment on paper.

Large language models AI agents Machine learning RAG & knowledge bases

Posts by Mariia Kovalchuk

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28.04.2026 4 min read

What Is RAG? Knowledge Retrieval Explained

RAG explained: how a language model retrieves information from company documents, uses it in answers and what limitations you should consider.

Mariia Kovalchuk

10.03.2026 4 min read

AI Agents for Customer Support: How They Work

How AI agents support customer service: knowledge bases, integrations, common workflows and human handover. What to consider before implementation.

Mariia Kovalchuk