We are looking for a mid-level Python backend developer to review, stabilize, and improve an existing intraday trading bot. This is NOT a “build from scratch” project. The bot is already developed but requires stabilization and architecture improvements. Scope of Work: • Fix recurring API session/token issues • Ensure stable 5-minute candle data fetching • Implement reliable session persistence • Fix dashboard Start/Stop lifecycle issues • Ensure STOP action is persistent across tabs • Validate market condition filter behavior • Review overall backend structure for stability Tech Stack: • Python • AngelOne SmartAPI • Intraday candle data (5-min) • SMA-based signal logic • Web dashboard (Start/Stop controls) Requirements: • Strong Python backend experience • Experience with broker/trading APIs • Understanding of session/token persistence • Ability to debug live systems • Available during Indian market hours (9:00 AM – 3:30 PM IST) for coordinated testing Deliverables: • Stable session handling • Clean dashboard lifecycle behavior • No recurring token/candle errors • Documented explanation of changes This is a fixed-price stabilization project. Serious applicants only. Please describe your experience with trading APIs in your proposal.