Jesús Losada is a Senior Machine Learning Engineer with a decade of experience building scalable data and NLP solutions from Madrid, Spain. He has led healthcare-focused NLP engineering at John Snow Labs and now combines freelance senior ML work with co-founding a data-driven startup, Sparker. His background spans end-to-end systems—from high-availability back-end computation platforms and multitenancy at PredictX to loyalty systems and production ML—bringing both research-grade NLP and pragmatic deployment experience. Trained in computer engineering and data mining, he has particular strength in Spark-based pipelines and healthcare NLP libraries, and often bridges product definition with infrastructure and governance concerns. Notably, he transitioned from building core computation platforms to leading internal open-source Spark NLP components, showing a knack for turning complex data workflows into maintainable engineering artifacts.
10 years of coding experience
7 years of employment as a software developer
Engineer's degree, Computer Software Engineering, Computer engineering, Engineer's degree, Computer Software Engineering, Computer engineering at Universidad de León
Master's degree, Data scient, Data Minning and Business inteligence, Master's degree, Data scient, Data Minning and Business inteligence at Universidad Complutense de Madrid
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Jesús Losada - Senior Machine Learning Engineer at Upwork