# Helena Zeng

> Staff Software Engineer | Ex-Apple

Location: Tokyo, Japan
Profile: https://flows.cv/helenazeng

## Work Experience
### Senior Software Engineer @ Apple
Jan 2022 – Jan 2025 | Cupertino, California, United States

### Software Engineer @ Apple
Jan 2018 – Jan 2022 | Cupertino, California, United States

### Software Engineering Intern @ Thumbtack
Jan 2017 – Jan 2017 | San Francisco Bay Area
- Built data pipeline to generate aggregated features and training data using Scala/Spark; supporting the machine learning model's real-time likelihood score computation.
- Computed and accessed aggregated features in Google Cloud Platform.
- Added several important relevant features to the spam machine learning model; improved spam detection accuracy by approximately 1.5%.

### Software Engineering Intern @ American Express
Jan 2016 – Jan 2016
- Built analytics search engine using Elasticsearch to allow for faster, more scalable user searches.
- Handled importing of data from Hadoop HBase and performed transformations using Hive.
- Developed Java MapReduce program to support distributed data processing on a large dataset (36 million records).

### Associate @ Paxos
Jan 2015 – Jan 2015 | Greater New York City Area
- Developed a data migration environment for a bitcoin settlement system using Python Flask, optimizing SQL queries to achieve automated data migration and increase efficiency within a blockchain solutions company.
- Provided critical services to business units in Singapore and New York City, demonstrating adaptability and effective communication in a fast-paced crypto-focused environment.

### Undergraduate Research Assistant @ University of Michigan
Jan 2014 – Jan 2015
- Work with a team to build a prototype for a new individualized heating and
cooling device. 
- Design a 3D model to approach a zero net energy future in office buildings with
renewable energy sources and smart grid technology.
- Use engineering simulation software to calculate fluid dynamics and the position of
airflow in the 3D model in relation to the individuals.


## Education
### Bachelor’s Degree in Computer Science and Piano Performance
University of Michigan
Jan 2014 – Jan 2018

### Middle School Diploma in Piano Performance
Central Conservatory of Music
Jan 2008 – Jan 2012

### Master of Arts - MA in Organizational Leadership
University of Massachusetts Global

### High School
Professional Children's School
Jan 2012 – Jan 2014


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

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Source: https://flows.cv/helenazeng
JSON Resume: https://flows.cv/helenazeng/resume.json
Last updated: 2026-03-23