Strong Python skills, including Pandas, NumPy, and ML frameworks (Scikit-learn, TensorFlow, or PyTorch). Experience with web scraping tools: Scrapy, BeautifulSoup, Selenium, or similar. Experience building & maintaining data pipelines and ETL workflows. Solid understanding of statistics, machine learning, predictive modeling, and data analysis. Knowledge of SQL and/or NoSQL databases. Familiarity with LLMs, AI search engines (OpenAI API, ChatGPT, Perplexity), or semantic search.