AnkFin is a personal finance SaaS platform providing actionable financial insights across bank accounts, credit cards, and loans — helping users save smarter, spend wisely, and hit their financial goals. ● Built Node.js + Python backend with Next.js frontend, integrating Plaid (OAuth, Transactions, Webhooks) for real-time bank data aggregation across multiple account types. ● Designed PostgreSQL schema with normalized transaction tables, materialized views for analytics dashboards, and B-tree indexes reducing query time from 2.1s to 120ms. ● Built OCR + LLM pipeline (Tesseract + GPT-4 Vision) for receipt ingestion — acting as an ETL layer from raw images to structured transactions, cutting manual expense tracking time by 95%. ● Integrated Stripe (Payments, Subscriptions) and Unit Banking (ACH, Savings Accounts) for full financial workflow coverage. ● Implemented JWT rotation, bcrypt password hashing, audit logging, and S3 server-side encryption. ● Docker-based CI/CD with automated Prisma schema migrations and Redis-based job queuing. Tech stack: Node.js, Python, Next.js, PostgreSQL, Redis, Docker, Prisma ORM, Plaid API, Stripe, Unit Banking, AWS S3, JWT, GitHub Actions