Hello sir,
I hope you are doing well,
I am expert in magento store development with 4 years of experience.
I have strong skills over magento costomiztion and any type of js, css, ajax issue.
I can update your jQuery version through admin panel without any confliction at front-end as well backend.
I will work before get the all backup so don't worry about that.
I can start work right now.
If you have any queries then ask me without hesitation I will happy to assist you.
Thank you so much to give me your precious time.
Regards.