Payments Support Specialist (Fintech)

Location: Buenos Aires, Argentina; hybrid with a minimum of two days per week on site. Onboarding is fully on site.

Company

Rebill is a financial infrastructure platform for the Americas, providing local payments, installments, recurring billing, stablecoin rails, treasury, global payouts, and financial operations.

What you will do

• Resolve merchant cases end to end, including refunds, balances, KYB verification, integrations, and payment declines.
• Manage relationships with acquirers and service providers, including transaction escalations, settlement follow-up, and refund coordination.
• Investigate ambiguous payment cases by comparing internal data with processor responses and explaining root causes clearly.
• Analyze approval rates and decline reasons by issuer, BIN, and payment method, and produce recurring reports.
• Escalate engineering bugs and improvements with complete evidence and follow them through to closure.
• Operate and improve the automation layer, document case patterns, and maintain help center content and internal procedures.

Requirements

• At least 3 years of experience in support, operations, or customer experience.
• At least 3 years at a PSP, acquirer, or payment processor; familiarity with chargebacks, settlement cycles, and decline codes.
• English at C1 level or above, including independent calls with corporate clients.
• Comfortable writing SQL queries against relational databases.
• Experience with a helpdesk platform, queue management, SLAs, and case traceability.
• Based in Buenos Aires and able to work from the office.

Nice to have

• Conversational Portuguese for support or commercial conversations with Brazilian merchants.

Culture & Benefits

• Hybrid work from a fully equipped Buenos Aires office, with at least two on-site days per week.
• Fully on-site onboarding period.
• Direct access to decision-makers without intermediary layers.
• Daily use of AI tools for writing, reasoning through edge cases, data analysis, and productivity.

Hiring process

• Introductory conversation.
• Technical assignment based on a real case from the operation.
• Final conversation.