Onsite role based at Nextiva’s Guadalajara office (Calle Amado Nervo 2200, Jardínes del Sol, 45050 Zapopan, Jal.).

This role is expected to work onsite five days per week, supporting a highly collaborative, in‑person team environment.

• Review invoices and create credit memos to customer accounts
• Assist customers with billing questions and resolve billing issues
• Issue credits for service/product removals and cancellation
• Research and respond to customer credit card disputes
• Maintain detailed logs of customer interactions
• Answer inbound phone calls and instant messages
• Support Nextiva’s ticketing system
• Provide back‑up customer support for other positions as needed
• Create, review and apply incoming payments
• Process credit applications and set customers up on invoicing
• Work with internal cus...