Location: Remote (U.S. overlap preferred)
Type: Contract (Full-Time Preferred)
Domain: Payments / Fintech / eCommerce Infrastructure

About the Project

We are leading a modernization initiative for a high-growth digital commerce platform focused on payment orchestration, gateway optimization, and API-driven architecture.

Experience with orchestration platforms such as Gr4vy, Stripe, etc. is highly desirable, but not required. Deep payments experience is mandatory.

About the Role

We are seeking a senior backend engineer to support a payment modernization initiative. You will work directly under the CTO to build and integrate payment orchestration systems and direct PSP connections.

Responsibilities

- Build and maintain API integrations with multiple PSPs
- Implement payment routing logic
- Develop webhook handlers
- Implement tokenization flows




- Support subscription billing logic
- Ensure resilience, observability, and clean error handling

Requirements

- 6+ years backend experience

- Strong in one or more:
- Node.js
- Java
- Python
- Go

- Extensive REST API integration experience
- Webhook processing experience
- Payments domain experience required
- Strong understanding of:

- Auth/Capture flows
- Refund logic
- Chargeback lifecycle
- Subscription billing

Benefits

- High-Impact Architecture Project
- Executive Visibility
- Competitive Contract Compensation
- Adaptable Remote Structure
- Clear Scope, Clear Timeline
- Long-Term Engagement
- Technical Ownership

📌 Senior Backend Engineer - Payments (Argentina)
🏢 Maxana
📍 Argentina