# Ying-Chih Peng

> Senior Data Engineer at Klaviyo | Data Platform | Data Infrastructure | Ex-Squarespace

Location: Boston, Massachusetts, United States
Profile: https://flows.cv/yingchih

Software Engineer with passion in building scalable data systems.

## Work Experience
### Senior Software Engineer - Data Infrastructure @ Klaviyo
Jan 2024 – Present | Boston, Massachusetts, United States

### Software Engineer - Backend @ Squarespace
Jan 2023 – Jan 2024 | New York City Metropolitan Area
Checkout & Payments

Build event-driven architecture and microservices to enable millions of customers to purchase Squarespace products.

### Software Engineer - Data Platform @ Squarespace
Jan 2021 – Jan 2023 | New York City Metropolitan Area
Built services, tooling, and stream processing jobs to support a data platform that processes hundreds of millions of events per day.

Kafka, Spark, GCP, Hadoop, Spring Boot, Java, Scala, Python

### Data Engineering Fellow @ Insight Data Science
Jan 2020 – Jan 2021 | Boston, Massachusetts, United States
- Built an end-to-end distributed data pipeline using Kafka to ingest 10 diverse data streams to Google BigQuery to support marketing decisions of an e-commerce company.
- Improved the data ETL delivery time from 48 hours to 1 hour by designing a real-time streaming pipeline automated with Airflow.
- Designed the pipeline to be flexible for schema evolutions and potential expansion to other sales channels by encoding Kafka messages in Avro format.

### Sourcing Engineer @ BizLink Group
Jan 2020 – Jan 2020 | El Paso, Texas, United States
Global Strategic Sourcing

- Reduced roughly $200K USD, which is 35% of the project raw material cost by analyzing corporate purchasing data and approaching suppliers with cost reduction strategies.
- Derived insight to drive business purchasing decisions of millions of USD by consolidating multiple data sources using Excel to generate purchasing reports for VP of Operations.
- Completed 2~3 cost reduction/estimation projects weekly by efficiently communicating with
business development, manufacturing, and engineering teams.

### Data Engineer Intern @ UF Health
Jan 2019 – Jan 2020 | Gainesville, Florida Area
- Developed Electronic Health Record data processing pipeline for ML models using Python, which streamlined raw data of 300 million rows to Cassandra database.
- Achieved 200% run time improvement on data transformation algorithm by identifying bottlenecks and implementing more efficient data structures.
- Derived intelligence by conducting statistical analysis such as Wilcoxon Rank-Sum test, Fisher’s exact test, and T-test with Python and R, for validation of research hypotheses.

### Data Analyst Intern @ Logitech
Jan 2017 – Jan 2017 | Hsinchu County/City, Taiwan
Demand Forecasting

•	Developed correlation analysis among sales of different products to improve demand forecast accuracy for supply chain optimization, and utilized data visualization tools to present to senior management 
•	Analyzed the effect of various pricing & promotion strategies on revenue to optimize resource allocation
•	Developed a comprehensive process map for continuous improvement of cross-functional S&OP processes

### Manufacturing Intern @ Ningbo Di Tai Plastics Co., Ltd.
Jan 2016 – Jan 2016 | Ningbo, Zhejiang, China
‧  Planned the production scheduling by utilizing ERP system to allocate production orders.
‧  Cooperated with the Quality Control Department by random sampling products to ensure quality.
‧  Rotated between the departments of Production Planning, Quality Control, Accounting, and Manufacturing to gain deeper knowledge of the overall operation

### Financial Analyst Intern @ CTBC Bank Co., Ltd. 中國信託銀行
Jan 2015 – Jan 2015 | Taipei City, Taiwan
- Conducted a comprehensive research project on China Free Trade Zone, which analyzed the advantage of expansion in China at strategic level
- Explored and discovered hundreds of potential corporate clients, which stood for 60% of total number


## Education
### Master's degree in System Engineering
University of Florida

### Logistics in Materials, and Supply Chain Management
Lahti University of Applied Sciences

### Bachelor's degree in Business
National Central University


## Contact & Social
- LinkedIn: https://linkedin.com/in/yingchihpeng
- GitHub: https://github.com/ycpeng7

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Source: https://flows.cv/yingchih
JSON Resume: https://flows.cv/yingchih/resume.json
Last updated: 2026-03-31