Automate Database Data Entry

I’m looking to replace a daily copy-and-paste routine with a hands-free workflow that pipes records from our existing databases straight into the bookkeeping platform. The goal is simple: fully automated data entry driven by direct database pulls—no spreadsheets in the middle, no manual uploads. Here’s what I need built: • A secure connection to our source databases (MySQL and PostgreSQL) • A scheduled or event-based extraction that maps fields to the correct chart-of-accounts structure • Automatic posting through the accounting system’s API, complete with basic validation, error handling, and transaction logs • Well-commented code (Python, SQL scripts, or another mainstream language you prefer) plus a step-by-step deployment guide I’ll provide test credentials, schema diagrams, and the API documentation. Once everything runs smoothly for a week in staging—no failed jobs, no mismatched balances—the project will be considered complete. When you respond, outline the approach, language, and libraries (pandas, SQLAlchemy, airflow, etc.) you’d lean on, and point me to any similar automation you’ve delivered. Let’s make data entry fully automatic so the finance team can focus on higher-value work. Budget: USD 15–25