Backend Engineer - Payments

Maxana; Argentina; Remote; ARS 136,310,000 - 227,183,000; Full time

Benefits offered by this job

Fully remote

LATAM-friendly hours

Paid in USD

Job summary

Maxana seeks a hands-on backend engineer to own the payments logic on a TypeScript/Golang service. You’ll implement subscription flows, renewals, credits, and ensure webhook reliability in a real-time payments context.

Collaborate with payment processors via APIs like Stripe/Adyen, write automated tests, and occasionally perform lightweight React work where checkout screens meet APIs. This fully remote role offers LATAM-friendly hours and long-term engagement paid in USD.

Qualifications

• 3–5 years of production backend TypeScript/Golang experience.
• Hands-on payments/billing/subscriptions/checkout or PSP integrations.
• Comfort with event-driven and asynchronous processing.
• AI-assisted development as part of normal workflow.
• Strong written and spoken English.
• Availability during US business hours.

Responsibilities

• Build and maintain subscription, renewal, and credit logic in a TypeScript service.
• Own webhook reliability and payment-event correctness end to end.
• Work with payment processor and orchestration APIs — auth/capture, refunds, retries.
• Write automated tests; handle edge cases for multi-cycle renewals.
• Occasional light React work where APIs meet the checkout screens.

Skills

TypeScript

Golang

Payments experience

Event-driven systems

AI-assisted development

English proficiency

US business hours availability

React

React Native

Backend ownership

Tools

Stripe

Adyen

PagSeguro

Pix

Payment processor APIs

React

Job description

Our client is one of the fastest-growing telehealth companies in the US — founded three years ago, now at eight-figure annual revenue, with partnerships spanning a major buy-now-pay-later provider and a household-name consumer fitness brand. Their payments platform processes every dollar of that growth.

The Role

You'll work on the backend of the payments platform: subscription and renewal logic, credits, and the payment events that release a customer's order. Correctness is the job — if the money logic or a webhook is wrong, product doesn't ship.

This is a hands-on engineering seat on a small team, not an architecture role.

What You'll Do

• Build and maintain subscription, renewal, and credit logic in a TypeScript service
• Own webhook reliability and payment-event correctness end to end
• Work with payment processor and orchestration APIs — auth/capture, refunds, retries
• Write automated tests alongside the code; partial credits and multi-cycle renewals have too many edge cases for manual QA
• Occasional light React work where your APIs meet the checkout screens

Requirements

What We're Looking For

Required

• 3–5 years of production backend TypeScript/Golang
• Hands-on payments experience — you've worked on billing, subscriptions, checkout, PSP integrations (Stripe, Adyen, PagSeguro, Pix, or similar), or another system where money moved and had to be right
• Comfort with event-driven systems and async processing
• AI-assisted development as part of your normal workflow — expected, not a bonus
• Strong written and spoken English
• Availability during US business hours

Nice to have

• Go
• GCP experience
• React / React Native
• Own revenue-critical logic at real transaction volume
• Small senior team, direct access to product — no ticket factory
• Long-term engagement through Maxana, paid in USD
• Fully remote, LATAM-friendly hours