You need to add few modules to the OpenCart site(will be provided)
Batch Order Maanger Pro
Export to xml / csv / xls
Your task will be
1. modify code of above plugins so that order can be processed, status changed and order sent via xml /csv /xls to suppliers
2. modify code so that xml method can match supplier's fields for import /export
modify code so that a cron job can be done
3. modify code so that shipped orders can be imported with tracking number and system updates done
4. ensure that upon trigger of order status change, relevant emails, database updated debugging
5. Fix gtmetrix issues ie. Site optimization, page speed, html, robots etc….
6. Set up SOAP Web Services connection to supplier (codes will provided)
Timeline : 3 days. Don't bid over the budget.