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David Careers

Senior Backend Engineer - Payments

Posted today

maxanaFargo (ND)
Software DevelopersCustom Computer Programming Services

SENIORITY

Senior

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About the role

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

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