Tomas K

Data Scientist

Froneus • Full time

Sep 2024 - Nov 2026 • 2 yrs 2 mos

Build retrieval-augmented generation (RAG) chatbots and AI voice assistants, integrating LLMs, LangChain/LangGraph agents, tool calling, REST APIs, and backend services. Design and optimize ETL pipelines that prepare client data for AI applications and downstream services. Apply machine learning, using clustering for customer segmentation and forecasting to guide the timing and approach of outbound calls. Train and integrate text-to-speech (TTS) models, and build supporting backend services with Python and FastAPI.

Data Scientist

Accenture • Full time

Mar 2021 - Sep 2024 • 3 yrs 6 mos

Delivered computer vision work for object detection involving supermarket brands and medicine-related applications. Applied predictive maintenance approaches to electronic equipment in the oil industry. Designed a RAG solution for a mining client, combining document processing with OCR using Azure AI Vision to prepare source material for retrieval.