Backtesting Supertrend indicator in pinescript version 5

I am looking for a skilled programmer to help me backtest a Supertrend indicator in PineScript version 5. This particular Supertrend indicator will use price break through as the trigger condition, and will be backtested using indices. Version 5 of PineScript will be used for the project. The successful freelancer will have previous experience creating indicators in PineScript version 5; and should also have previous experience with backtesting of indicator scripts. I am looking for someone to help me execute this complex project quickly and efficiently. If you think you have the necessary skills and experience to help me, I'd love to hear from you!

additional information: strategy should trail stop loss with the ATR . Supertrend to be used as here https://in.tradingview.com/v/r6dAP7yi/