Senior Backend Engineer - Payments
Confirmed on the employer's own hiring board on Nov 4, 2026. First seen by Alion on Feb 27, 2026. Maxana scores D on the Alion truth index.
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
- Flexible Remote Structure
- Clear Scope, Clear Timeline
- Long-Term Engagement
- Technical Ownership