My algorithmic-trading script is written entirely in Python and the data-fetching layer has started to misbehave. Quotes arrive out of sync, sometimes disappear, and occasionally the routine throws time-outs that halt the strategy mid-session. I need a developer who can jump into the existing codebase, pinpoint the bottleneck or parsing error, and patch it so the feed is reliable again. You’ll have access to the current Python source, the test harness I use to simulate live trading, and credentials for the data provider once an NDA is in place. After the fix I expect: the script to pull complete and accurate market data on every call, no unhandled exceptions, and a short changelog explaining what you altered so I can keep the repository clean. If you’ve wrestled with REST or WebSocket market feeds, handled pandas / NumPy data frames, or optimized asynchronous requests in Python, you’ll feel right at home. Let’s get my strategy back to trading with confidence.