Zhou J.

I help businesses automate repetitive data work with Python, from collecting website and API data to cleaning spreadsheets, generating reports, and importing records into databases. I completed a five-source Python data collection project on Upwork, delivering data normalization, deduplication, Google Sheets exports, tests, documentation, and source-code handoff. All three milestones were approved and paid. The client rated the completed project 5.0/5 and described my work as professional, reliable, well documented, and easy to communicate about. We are now working together on the next phase. I can help you with: • Python web scraping and data collection from public or authorized sources • Data cleaning, validation, deduplication, and Excel/CSV consolidation • Excel and VBA automation for recurring reports, workbook updates, and exports • API integrations and data transfers to Google Sheets, SQLite, or PostgreSQL • Repeatable ETL pipelines with source tracking and clear error reports My portfolio shows these Python data pipelines, Excel automation, and API data sync tools. For clearly defined tasks, I agree on deliverables and acceptance criteria upfront. When data access or business rules need validation, I start with a small paid milestone using a representative source or sample file. Share your current process, sample input, expected output, and update frequency. I will propose a practical scope, identify dependencies, and provide a realistic estimate.