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

Originally posted on Himalayas