Sofia Sotiropoulou

I am an AI engineer.

Artificial Intelligence Engineer at EY (2023-03 – Present)

Promoted twice within one year for technical excellence and project impact. Designed, developed, and deployed production-ready AI systems integrating LLMs, RAG, multi-agent workflows, evaluation frameworks and monitoring pipelines.

• AI Video Insight Tool: Developed a Python API integrating LLMs and speech-to-text models to automate video analysis for the Greek Government. Generated summaries, performed topic extraction, created interactive Q&A, and synchronized subtitles over digital lessons to enhance student learning.
• Financial Analytics Chatbot: Built an intelligent chatbot with reasoning and code execution capabilities to analyze financial data and generate insights and visualizations.
• NLP-to-SQL Agentic System: Engineered an agentic system converting natural language into executable SQL queries.
• Customer Call Analytics: Developed an AI tool utilizing advanced NLP and deep learning models to analyze customer calls.
• LLM Benchmarking: Evaluated 60+ LLMs across 80+ tasks using 13 evaluation metrics.
• Machine Learning Models: Built models for classification, regression, clustering, and anomaly detection, with a key project being an XGBoost model for churn prediction of high-risk clients.

BSc in Management Science and Technology – Athens University of Economics and Business (2019-10 – 2024-04)

Specialization in Mathematics for Machine Learning – Imperial College London (2022-07 – 2022-07)