Backend Engineer, Payments Team at Squire

This role is designed for a seasoned Backend Engineer with a heavy focus on the fintech and payments ecosystem. While listed as "Mid-level" in the classification, the requirements demand at least 7 years of Node.js experience and a deep understanding of financial logic, including double-entry bookkeeping, reconciliation, and idempotency in distributed systems. The position offers a hybrid work structure in Buenos Aires, requiring on-site collaboration in CABA every Tuesday and Thursday. As part of the Payments Team, you will have a direct impact on the core financial infrastructure that powers thousands of barbershops globally, transitioning manual processes into robust, automated testing frameworks. **You might be a good fit if you...** * Have 7+ years of Node.js experience and have mastered the payment processing lifecycle. * Are comfortable with financial architecture, specifically ledgers and Stripe API integrations. * Prefer a hybrid lifestyle and are based near Buenos Aires for twice-weekly office days. * Are highly proficient in English and comfortable collaborating with international teams.