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Nanciu David

@nanciudavid

Message

I build data pipelines and AI platforms with Python, Informatica, Snowflake, and machine learning.

Romania

Message

What I'm looking for

I'm looking to build scalable data and AI products, from reliable ETL/ELT pipelines and data lineage systems to machine learning and full-stack platforms.

At IBM, I architect and develop an enterprise Data Lineage platform that integrates Informatica metadata and Tableau assets to map field-level data flows.

I design scalable Informatica IDMC and IPC workflows across Oracle, Snowflake, AWS S3, and Unix, and automated dependency discovery to reduce manual impact analysis time by 70%. I also optimize SQL, Snowflake warehouse configurations, and shell scripts to improve pipeline efficiency.

Beyond data engineering, I build end-to-end AI and web products, including an AI content generation platform using React, TypeScript, FastAPI, Llama 3.3, and Whisper, plus a property valuation platform with 72,500+ listings and an XGBoost model achieving R = 0.87 on unseen data.

Experience

Work history, roles, and key accomplishments

Current

Data Engineer

Current

IBM

Jul 2025 - Present (1 year 1 month)

Architected and developed a Python and Streamlit-based enterprise Data Lineage platform integrating Informatica metadata and Tableau assets. Designed and implemented scalable Informatica IDMC and IPC workflows, managing end-to-end ETL/ELT pipelines across Oracle, Snowflake, AWS S3, and Unix environments.