Looking for a Developer to Prepare Data for Machine Learning — 2

We are looking for an experienced developer who can prepare data from 150 sources for machine learning. The candidate should have expertise in tools such as Pandas, Numpy, Scikit-learn, and TensorFlow. The job will involve downloading data from various sources, processing and combining them into a single file, performing random sampling, creating a training and testing set, normalizing and scaling the data, selecting an appropriate machine learning model, training and validating the model, and optimizing the model for better results. The ideal candidate should have experience working with large datasets and be able to make decisions about selecting and optimizing machine learning models. Please send your portfolio and experience with machine learning.