Software part of algotrading is simpler than you think. TradingView is a great place to do this actually. To present it, I'm publishing each of the default strategies you can find in Pinescript editor's "built-in" list with slight modification - I'm only adding 2 lines of code, which will trigger alerts, ready to be forwarded to your broker via TradingConnector...
Alerts on strategies were introduced just recently in TradingView.
These alerts have an alert_message placeholder which allows you to compose in PineScript very complex alerts and insert quite a lot of information in them.
This is just very simple example of how they can look like.
Dragon Script is a framework to make it as easy as possible to test your own strategies and set alerts for external execution bots.
The script has many features build in, like:
1) A ping/pong mechanism between longs and shorts
2) A stop-loss
3) Trailing Stops with several ways to calculate them.
4) 2 different ways to flip from long to short.
The script is...