Lead Engineer / Payment Architect

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 .

This role will architect and lead integration efforts involving

• Payment gateway orchestration

• Tokenization strategy

• Direct PSP integrations

• Subscription billing logic

• Checkout modernization without disruption

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

What You’ll Do

• Architect and lead end-to-end payment orchestration strategy

• Design multi-PSP routing logic and failover systems

• Lead integration from gateway abstraction to direct acquirer connections

• Oversee token migration and vault strategy

• Ensure PCI-compliant design and security best practices

• Guide backend and DevOps engineers through execution

What Success Looks Like

• Clean abstraction layer across PSPs

• Reduced payment friction

• Improved authorization rates

• Modernized checkout infrastructure

Requirements

• 8+ years backend engineering experience

• 4+ years in payments infrastructure

• Strong knowledge of:

• REST APIs

• Webhooks

• Tokenization

• Recurring billing logic

• Card-not-present flows

• Experience integrating PSPs (e.g., Worldpay, Checkout.com, Adyen, Stripe, etc.)

• Experience designing high-availability systems

Ideal (Not Required)

• Gr4vy integration exposure

• Subscription/SaaS billing systems

• Gateway-to-direct processor migration projects

Benefits

• High-Impact Architecture Project

• Executive Visibility

• Competitive Contract Compensation

• Flexible Remote Structure

• Clear Scope, Clear Timeline

• Long-Term Engagement

• Technical Ownership