j
jeffreyxy

Jeffrey.X

@jeffreyxy

Data Engineer

Cina
Cinese, Inglese
Alcune informazioni sono riportate in lingua inglese.
Chi sono
Data engineer with 8 years of experience in finance-grade production systems. What I deliver: ✅ SQL development & query tuning (MySQL, Oracle, Hive) ✅ ETL pipelines & data warehouse design ✅ Python automation & data processing (pandas) ✅ FastAPI backend development I've built a 0-to-1 quant research platform and kept a trading system running with zero major incidents for 4+ years. Deadlines are commitments — send me your data problem and I'll tell you straight how I'd solve it.... Continua a leggere

Competenze

j
jeffreyxy
Jeffrey.X
offline • 

Consulta i miei servizi

Progettazione e ottimizzazione
I will write, optimize, and fix sql queries for mysql,oracle, and hive
Modello statistico e analisi
I will build python data processing and automation scripts with pandas