People keep their actual strategies and setups pretty close so I wouldn’t expect much. PhD in CS so you can figure out the basics. If you’ve got exp building enterprise level apps this should be a breeze, the difficult stuff only comes in the form of ML, trade signals and thinking outside of the box. A basic trading bot is really just something that analyses historical data, combines it with live data and calls a brokerage API.

Just learn about trading in general and devise a very basic strat, find a place to get historical data (IEX is good), find a broker with an API that serves all your needs and build it out over time. I started with something very barebones and added to it over time, think of simple trading strats and connect to a paper account. No need for any ML or anything like that to start, just go with something like mean reversion/EMA crossover and build it out. Backtesting is important.