Fintech Platform Technical Audit — Verify Supplied Source Code & Banking Integrations

We have been supplied source code and documentation for a white-label banking and payments platform (React frontend, NestJS backend, PostgreSQL database) along with deployment guides and a 70-page technical document. Before we commit to a full deployment, we need an experienced fintech developer to conduct a short paid audit of what has actually been delivered. Your job is to answer one question: does what we've been given actually work, and what's missing? Specifically we need you to: Clone and attempt to build all supplied repositories locally Confirm whether the backend source code is included or only the frontend Confirm which features genuinely work vs which are stubs or incomplete Check whether existing banking API integrations (Bridge.xyz, RouteFusion, BlindPay) are real and functional or just scaffolding Identify whether test/sandbox credentials or environments are available Compare the documentation against the actual codebase and flag any gaps Assess security risks at a high level Recommend the AWS architecture needed for staging and production Provide a realistic cost and timeline estimate for deployment Deliverable: a written report covering the above, plus a working local demo if the code builds successfully. This is a standalone paid milestone. If the audit goes well, there is a larger deployment and integration engagement to follow. Required skills: NestJS, Node.js, TypeScript, React, PostgreSQL, AWS, fintech/payments API experience Screening questions: Have you previously audited or inherited a codebase for a fintech or payments platform? Briefly describe. Are you comfortable assessing banking API integrations (Bridge.xyz, Plaid, Stripe Connect or similar)? What is your availability for the next 2 weeks?