Software Agency Needed for Fintech MVP Bug Fixes — Next.js, NestJS and Supabase

We’re looking for a small, hands-on software agency to fix the remaining bugs in an existing fintech MVP. Technology: - Next.js, React and TypeScript - NestJS and Node.js - Supabase/PostgreSQL - Google OAuth and Brevo Main issues: - Critical cross-user data exposure in Ongoing Applications - Loan Feed goal persistence and calculation errors - Incorrect circumstance-specific Loan Feed content - Google-authenticated users not syncing with Brevo - Incorrect Ongoing Application card states, actions and routing We will provide the repositories, detailed acceptance criteria, screenshots and 18 calculation scenarios. The agency must: - Investigate and document root causes - Implement frontend and backend fixes - Add focused automated tests - Submit clean GitHub pull requests - Provide QA evidence and deployment support - Assign a named technical lead who will work directly on the code Fixed budget: USD $1,000–$1,200 Expected duration: 2–4 weeks Potential for further work after MVP V1. Please include your proposed team, relevant experience, delivery approach, timeline and fixed-price estimate. Generic agency profiles will not be considered.