LELi emilyinemily19980210.hashnode.dev·5d ago · 5 min readBuilding a Cross-Market Time Alignment Layer for Precious Metals K-Line GenerationWhen I first tried to generate reliable 1-minute K-lines for XAUUSD, I kept running into mysterious gaps and jumps. The root cause turned out to be the misalignment of timestamps as liquidity rotated 00
LELi emilyinemily19980210.hashnode.dev·Jul 22 · 4 min readBuilding Resilient Real-Time Market Data Pipelines: Handling Stock Halt and Resumption SnapshotsHigh-frequency trading systems live and die by data integrity. While much attention is paid to latency and throughput, a quieter threat lurks in state transitions: stock suspensions and their subseque00
LELi emilyinemily19980210.hashnode.dev·Jul 14 · 3 min readBuild a Multi-Timeframe Signal Validation Engine for Your Robo-Advisor Using WebSocket Tick DataIntroduction If you’re the developer behind a smart advisory app, you’ve likely encountered the moment where your daily trend model and your minute-level scalper start shouting contradictory orders at10
LELi emilyinemily19980210.hashnode.dev·Jul 9 · 3 min readBehind the Scenes of an Algo Execution Team: Eliminating Crypto Candlestick Gaps Without Faking DataAlgorithmic execution depends on one non-negotiable ingredient: clean, continuous market data. Yet many quantitative teams discover far too late that their backtests were run on a dataset riddled with10
LELi emilyinemily19980210.hashnode.dev·Jun 29 · 4 min readHow Our Quantitative Team Keeps Crypto Trading Pairs in Sync in Real TimeThe Data Pain: When a Strategy Goes Silent Because of a Missing Symbol I still remember the first time our crypto quant system silently failed. A market-making strategy began rejecting orders with “in10
