Keras Neural Network Development

I need a Keras expert to build and test a neural network. The dataset is numerical with mixed features (continuous and categorical). The objective is classification.

Key Requirements:
- Build a Keras neural network for classification tasks
- Handle mixed numerical data types (continuous and categorical)
- Test and validate the model
- Provide documentation on the model and results

Ideal Skills:
- Proficiency in Keras and TensorFlow
- Strong background in handling numerical datasets
- Experience with classification problems
- Good documentation skills