Fintech SaaS Backend Refactoring & Stabilization
Resolved backend technical debt and rebuilt the development foundation for a financial data management SaaS integrating with Plaid, Slack, and Google Workspace.
Challenge
The financial data management SaaS MVP was functional, but technical debt accumulated from scattered test files, SQL migrations, and lack of CI/CD, making it difficult to maintain development efficiency and quality.
Solution
Refactored the existing backend (FastAPI + Supabase + AWS App Runner): code organization, migration rebuilding, and CI/CD setup. Also improved README and database workflow documentation.
Result
Achieved migration history reproducibility, automated testing via GitHub Actions, and staging environment design proposals, enabling the solo founder to continue development with confidence.
Team
1 member, 1 month
Refactoring & foundation building
Role
Backend refactoring & DevOps setup
Handled existing FastAPI code cleanup, Supabase migration rebuilding, CI/CD setup, and development documentation.
Tech Stack
Key Features
Test file and SQL migration structural reorganization and consolidation into standard directories
Supabase migration rebuilding based on production execution history
Automated testing and CI/CD pipeline construction with GitHub Actions
Development documentation (README, DATABASE_WORKFLOW) setup
Project context files for Cursor, Cline, and GitHub Copilot
Staging environment and deployment workflow design proposals
Technical Highlights
Migration History Reproducibility
Reconciled scattered SQL files against production Supabase execution history and rebuilt them in the correct order in supabase/migrations directory. Achieved working db push / db reset / migration up.
Solo Founder Development Foundation Optimization
Set up Cursor, Cline, and Copilot project context files to keep coding standards and project assumptions consistent.