Backend Engineer
Posted 27 Feb 2026
Advertised as “Senior Backend Engineer - Payments”
BranchFactor Summary
The original posting with the fluff stripped out
- Expected experience
- 6+ yrs
- Management level
- Individual contributor
- Employment
- Remote
- Contract
- Contract
No salary listed for this 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
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
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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