I am a Machine Learning Engineer specializing in end-to-end MLOps and AI agents. I design and ship scalable AI systems that drive measurable business value. At E.SUN Commercial Bank, I architected an end-to-end risk-based pricing engine and built a centralized feature store from fragmented credit schemas, delivering C$1.8M in annual profit. I also designed an AI loan negotiation agent with a modular, state-based workflow that projected a 20% reduction in manual effort, and used LLMs to help triple lead conversion from 1% to 3% by extracting features from 100K+ transcripts and validating lift via A/B testing and hypothesis testing. I further reduced model inference latency by 92% (2.4s to 0.2s) by applying polynomial approximation in FastAPI and by optimizing Airflow pipelines to accelerate batch processing by 93%. I have hands-on experience deploying RAG workflows with LangChain and vector databases, and integrating LLMs to drive business value with measurable uplift (1%-3% conversion). My broader skill set includes building ML and data engineering pipelines with SQL, PySpark, Airflow, Docker, Kubernetes, and MLflow, along with Python-based APIs (FastAPI) and CI/CD practices. Outside of work, I contribute as a PyLadies Instructor, teaching Python and data analysis to 100+ students and leading a team of volunteers to boost participation and learning outcomes.

Yuna Tseng

I am a Machine Learning Engineer specializing in end-to-end MLOps and AI agents. I design and ship scalable AI systems that drive measurable business value. At E.SUN Commercial Bank, I architected an end-to-end risk-based pricing engine and built a centralized feature store from fragmented credit schemas, delivering C$1.8M in annual profit. I also designed an AI loan negotiation agent with a modular, state-based workflow that projected a 20% reduction in manual effort, and used LLMs to help triple lead conversion from 1% to 3% by extracting features from 100K+ transcripts and validating lift via A/B testing and hypothesis testing. I further reduced model inference latency by 92% (2.4s to 0.2s) by applying polynomial approximation in FastAPI and by optimizing Airflow pipelines to accelerate batch processing by 93%. I have hands-on experience deploying RAG workflows with LangChain and vector databases, and integrating LLMs to drive business value with measurable uplift (1%-3% conversion). My broader skill set includes building ML and data engineering pipelines with SQL, PySpark, Airflow, Docker, Kubernetes, and MLflow, along with Python-based APIs (FastAPI) and CI/CD practices. Outside of work, I contribute as a PyLadies Instructor, teaching Python and data analysis to 100+ students and leading a team of volunteers to boost participation and learning outcomes.

Available to hire

I am a Machine Learning Engineer specializing in end-to-end MLOps and AI agents. I design and ship scalable AI systems that drive measurable business value. At E.SUN Commercial Bank, I architected an end-to-end risk-based pricing engine and built a centralized feature store from fragmented credit schemas, delivering C$1.8M in annual profit. I also designed an AI loan negotiation agent with a modular, state-based workflow that projected a 20% reduction in manual effort, and used LLMs to help triple lead conversion from 1% to 3% by extracting features from 100K+ transcripts and validating lift via A/B testing and hypothesis testing. I further reduced model inference latency by 92% (2.4s to 0.2s) by applying polynomial approximation in FastAPI and by optimizing Airflow pipelines to accelerate batch processing by 93%.

I have hands-on experience deploying RAG workflows with LangChain and vector databases, and integrating LLMs to drive business value with measurable uplift (1%-3% conversion). My broader skill set includes building ML and data engineering pipelines with SQL, PySpark, Airflow, Docker, Kubernetes, and MLflow, along with Python-based APIs (FastAPI) and CI/CD practices. Outside of work, I contribute as a PyLadies Instructor, teaching Python and data analysis to 100+ students and leading a team of volunteers to boost participation and learning outcomes.

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Experience Level

Expert
Expert
Expert
Expert

Language

English
Fluent
Chinese
Advanced

Work Experience

Machine Learning Engineer at E.SUN Commercial Bank
February 1, 2023 - September 1, 2025
Architected an end-to-end risk-based pricing engine with a centralized feature store; delivered C$1.8M in annual profit. Designed an AI loan negotiation agent with a modular state-based workflow to reduce manual effort by ~20%. Leveraged LLMs to extract features from 100K+ transcripts, achieving a lead conversion uplift from 1% to 3% (validated via A/B testing). Reduced model inference latency by 92% (2.4s to 0.2s) using polynomial approximation in FastAPI and accelerated batch processing by 93% through Airflow optimizations.
Machine Learning Research Assistant at Academia Sinica
August 1, 2021 - February 1, 2023
Accelerated logistic regression testing by 360x (from 15 days to 1 hour) by automating and parallelizing 100+ concurrent jobs on an HPC cluster. Published first-author research in Frontiers in Genetics on large-scale predictive modeling for risk assessment.
Data Scientist Intern at CECI China Engineering Consultants, Inc.
July 1, 2020 - December 1, 2020
Reduced road inspection costs by 80% by developing an ARIMA model to optimize operational efficiency. Built Google Data Studio dashboards to monitor KPIs, saving 3+ hours per week in manual reporting.

Education

Master of Science in Statistics at National Yang Ming Chiao Tung University
January 1, 2019 - January 1, 2021
Bachelor of Science in Chemical Engineering at National Cheng Kung University
January 1, 2012 - January 1, 2016

Qualifications

Add your qualifications or awards here.

Industry Experience

Financial Services, Education, Professional Services, Software & Internet