Flutter Integration with Credit Card Terminal

I need a flutter developer to integrate a credit card processing terminal with my existing flutter app. Flutter app will communicate with android based credit card terminal through api's on tcp protocol over wifi. I will guide you everything. You will need to connect with my anydesk and work on my system as credit card terminal is on my local network. This project may take anywhere from 30-40 hours. If everything goes well then I can hire you again for few more integrations. Working hours will be from Friday (19th Jan) 5.30 pm to 11.30 pm, Saturday 7.30 am to 11.30 pm, Sunday 7.30 am to 11.30 pm Pacific time (Vancouver Time). We need to complete this integration within this time frame. I will personally sit with you during all this time and help you complete the integration. If needed we can work Weekdays also same time as Friday. Only serious bidders please bid after reading full project requirements and do not bid through AI with your eyes closed. Please DO NOT waste my time.