MAGENTO 2 - Minor edition and fixing

Looking for someone expert on Magento 2, Tasks: 1)- Broken link issue, 2)- Backup and restore training, 3)- Import users and passwords from an old Magento website., 4)- Fix some modules not visible on responsive version. Open to work on demand and paired with my supervision been available through Whatsapp or Telegram 24/7 Spanish/English talking highly valued.