# Jie C.

> Software Engineer

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/jiec

6+ years' hands-on experience in building data processing pipelines. Solid knowledge in large scale data storage, batch data processing, stream data processing,query optimization, and distributed systems, and machine learning pipeline.

Technical skills:
 - Programming languages: Python, C++, SQL 
 - Data storage and query engines: MySQL, Snowflake, Presto, SparkSQL
 - Data pipeline tools: Kafka, KStream, Airflow, Dbt, Pandas
 - Statistical modeling and deep learning: Scikit-learn, Pytorch, Stan

## Work Experience
### Senior Software Engineer @ Gatik
Jan 2024 – Present

### Software Engineer @ Zoox
Jan 2022 – Jan 2023
- Designed and implemented a database solution to store autonomous vehicle sensor measurements for creating high definition (HD) maps.
- Created a version control and data lifecycle management solution for updating HD maps.

### Data Engineer @ Meta
Jan 2021 – Jan 2022
- Created large scale batch data processing pipelines for ads data.
- Worked extensively on troubleshooting and query optimization for Presto and Spark SQL, gained deep understanding of MPP database.
 - Set up A/B testing experiments to analyze impact of individual features

### Software Engineer @ Zymergen, Inc.
Jan 2019 – Jan 2021 | Emeryville, California
Worked on data warehouse construction, and database performance improvement
 - Designed and Created data warehouse tables, and implemented both batch ETL solution using Airflow and streaming ETL solution using Kafka Streams
 - Created indexes and analyzed query execution plans to optimize SQL queries
 - Designed and created views to provide abstraction over tables
 - Analyzed query pattern from DB logs to provide suggestions for data warehouse design

### Data Scientist @ Zymergen, Inc.
Jan 2017 – Jan 2019 | Emeryville, California
Developed machine learning pipeline with Airflow:
 - Worked with statisticians to build machine learning model using Scikit-learn and Stan
 - Created machine learning pipeline related data schema using Avro
 - Extracted data using SQL query, and applied complex data transformation using Pandas
 - Stored model prediction and parameters to S3, and retrieved with Athena

### Research Associate @ The Ohio State University
Jan 2016 – Jan 2016 | Columbus, Ohio Area
Managed terabytes of scientific data for Polar Earth Observing Network (POLENET) project:
 - Designed and created tables in PostgreSQL to store GPS time series data
 - Server maintenance including database backup and statistics update
 - Applied regression model to extract long-term trend and seasonal pattern in time series data


## Education
### Master's Degree in Geology/Earth Science, General
The Ohio State University

### Bachelor's Degree in Geological and Earth Sciences/Geosciences
Zhejiang University


## Contact & Social
- LinkedIn: https://linkedin.com/in/jiechen1

---
Source: https://flows.cv/jiec
JSON Resume: https://flows.cv/jiec/resume.json
Last updated: 2026-04-01