Ella Han
I am a results-driven data scientist with 10+ years of experience building AI/ML solutions across finance, healthcare, and fintech.
About
I am a results-driven data scientist with 10+ years of experience building AI/ML solutions across finance, healthcare, and fintech. I blend statistical modeling with practical software engineering to turn data into actionable insights. I thrive on solving complex problems with robust, scalable analytics and enjoy mentoring colleagues along the way.
I am passionate about applying cutting-edge AI approaches, from traditional ML to large language models and prompt engineering, to drive business impact. I love collaborating with cross-functional teams and stakeholders to translate goals into deployable, measurable solutions and to foster data-driven decision making.
- 10 years' experience
- Joined March 2026
Industry experience
- Healthcare
- Financial Services
- Government
- Education
- Software & Internet
Work experience· 7 roles
Independent data science consultant delivering end-to-end AI/ML projects across finance, healthcare, and fintech. Designs and implements statistical models, NLP pipelines, and toolchains (including custom named-entity recognition with spaCy) to power decision making and automation. Delivers dashboards, monitors model performance, and mentors junior team members.
Led advanced analytics engagements for major clients, building market analytics, forecasting, and data-driven product insights using Python, SQL, Airflow, Snowflake, H2O, Tableau, and cloud platforms. Implemented ARIMA/ Prophet time-series models, evaluated performance, and provided mentorship.
Applied ML/NLP to AML transaction monitoring and payment screening. Developed predictive models, optimized alert thresholds, and implemented data quality governance. Achieved a 40% reduction in alert rates and estimated $4.2M in annual cost savings.
Education
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