David Chen

I have a strong Python background and want to properly understand machine learning -not just run sklearn functions, but actually understand what's happening mathematically and build models end-to-end. I want to be able to contribute to ML features at work.

I'm a software developer who wants to get AWS certified to expand my cloud skills and open up more senior roles. I've used AWS casually but never studied it systematically. I need a structured exam prep plan around my working hours.

I'm a marketing analyst comfortable with Excel and basic statistics who wants to learn Python for data analysis. I want to be able to write scripts, work with pandas/numpy, and create visualizations — skills that will immediately apply to my current job.