Lead Generation Monetization System Architect & Lender's Portal Multi-tenant Developer

We are looking for - Lead Generation Fintech Payment System Engineer - Lenders' Portal Development Engineer (Multi-Tenant SaaS) * We develop a similar portal as Lead Prosper's Lender's Portal. We have a basic scalable lead generation engine for vehicle finance, insurance, warranty, and legal providers. We want to scale and finalize our MVP with experienced candidates. Lead gen is our core monetization tool, and it should support monetization at scale, including billing, subscriptions, metered usage, prepaid credit, dunning, refunds, and invoicing with zero revenue leakage. It should also handle real-time lead routing across multiple monetization models, dynamic buyer pricing and allocation, and secure integration with external APIs. The solution must be reliable under high concurrency, support multi-tenant isolation, and meet compliance requirements for real money and PII handling.