# Zhendong Xu

> Software Engineering Manager at Pocket Gems

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

Skills
● Languages​: Javascript/Typescript, Java, Python, SQL, etc.
● Databases​: AWS DynamoDB, AWS Redshift, BigQuery, Postgres, MySQL, Cassandra, Redis, MongoDB, SQLite, etc.
● Systems/Frameworks​: Linux, Mac OS, Android, iOS, Spring, Express.js/Socket.io, Fastify, Flask, etc.

Projects
Data Pipeline based on GCP / AWS - Pocket Gems Inc.

Data visualization based on Apache Superset  -Pocket Gems Inc.

Topichat iOS/Android Mobile App​ - NewsOnChat Inc.
● Design and develop organization structure API, survey API, event/session API, reminder API, etc under
Spring Boot​ Framework.
● Design and develop real-time chat, notification, SOS features, etc under ​Socket.io​, ​Express.js
Framework.
● Research and integrate third-party APIs regarding ​payment, programmable video, notifications​, etc.
● Design and develop live streaming framework under ​Nginx​, ​Spring Boot​ Framework and third-party
CDN​.
● Develop and maintain ​Docker​-based infrastructure including ​Cassandra/ Redis​ database clusters,
Jenkins​ continuous integration, and multiple service nodes, etc.
● Full system migration from ​IBM cloud​ to ​Google cloud​ including data backup and live database
migration.
● Optimize Topichat real-time message system with mocked large amount of active users.

WeShare Web App​ - Online advice platform targeting job seeker
● Participate in database and interface design using ​MySQL​ and ​JDBI​.
● Design user and topic related APIs to support registration, bio page, topic selection, and appointment.
● Implement ​Spring Boot​ web server, including features like spring security with JWT token, retry, global
exception handling, etc.

## Work Experience
### Software Engineering Manager @ Pocket Gems
Jan 2022 – Present | San Francisco, California, United States

### Senior Software Engineer @ Pocket Gems
Jan 2019 – Present | San Francisco, California, United States

### Tech Lead @ NewsOnChat Inc.
Jan 2016 – Jan 2019 | Santa Clara, California

### Software Developer @ Ames IT and Numeric Solutions
Jan 2014 – Jan 2016

### Teaching Assistant @ New York University - Polytechnic School of Engineering
Jan 2013 – Jan 2014 | Brooklyn, New York, US
Teaching Assistant of Introduction to VLSI Design. 
Teaching Assistant of VLSI System and Architecture Design.
Organize lab materials and make tutorials for Integrated Circuits Design flow.

### Research Assistant @ New York University - Polytechnic School of Engineering
Jan 2012 – Jan 2014 | Brooklyn, New York, US
The group is working on Integrated Neural Recording Front to End system. I have participated in the ADC design and lead the neural recording amplifier design.

### Research Assistant @ Central China Normal University
Jan 2012 – Jan 2012 | Wuhan, Hubei, PRC
The group is working on sensors for The STAR Experiment at the Relativistic Heavy Ion Collider. I'm responsible for the PLL design of the precise clock circuits.

### Student Assistant @ University of Electronic Science and Technology of China
Jan 2009 – Jan 2012
I have applied for a innovation fund and working on Energy-Saving and Error-Reporting System of Street Lamps.
And also I have been working as an assistant of Youth League.


## Education
### Master of Science (MS) in Electrical Engineering
New York University - Polytechnic School of Engineering

### Bachelor of Science in Electrical and Electronics Engineering
University of Electronic Science and Technology of China

### Android
Udacity


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

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