Accounts Receivable (AR) Specialist

Location: Monterrey, Mexico | Full-time | 3+ Years Experience

A fast-growing SaaS fintech company with offices in Monterrey, NYC and Switzerland is looking for a detail-oriented and proactive Accounts Receivable (AR) Specialist to join its Accounting team in Monterrey. This is a great opportunity with growth potential, idóneo for someone who wants to build a strong foundation in SaaS finance and work closely with both Accounting and Customer Success teams.
Beyond receivables, this role will assist with revenue operations, including tracking and analyzing renewals, upsells, and churn trends — making it a great entry point into cross-functional SaaS operations .

What You’ll Do
Manage the full AR process: prepare invoices, track payments, and follow up with customers

Maintain accurate aging reports and monitor overdue accounts

Collaborate with the Customer Success team to track renewal timelines and upsell opportunities

Analyze and track customer data related to contract renewals, churn,



and upsell conversion

Support month-end close activities related to AR

Assist with improving billing workflows and documentation

Partner with the Finance and Ops teams to resolve billing issues

What We’re Looking For
2+ years of experience in Accounts Receivable, billing, or accounting

Experience in a software, recurring revenue or subscription-based company is a strong plus

Experience reviewing customer contracts to understand and track payment amounts

Proficient in Excel / Google Sheets and comfortable working with financial data

Familiar with accounting and invoicing tools (e.g., QuickBooks, NetSuite, or similar)

Detail-oriented, organized, and proactive communicator

Must be Bilingual in English and Spanish

Curious, collaborative, and ready to grow

This is a full-time, on-site (some flexibility here) role with salary and benefits

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