# Sai Wang

> SDE @eBay Payment Platform

Location: Mountain View, California, United States
Profile: https://flows.cv/saiwang

Skills: Full Stack Web Development, Objective-Oriented Programming, RESTful API Design & Development
Programming languages: Java; Python; Go; Kotlin; SQL; JavaScript; Typescript; HTML/CSS/LESS
Frameworks: Spring Boot, React, Spring MVC, Hibernate, Netty, Ant Design, D3.js
Database and tools: Prometheus & Grafana, MySQL, Elasticsearch, Tableau, Apache Tomcat, Apache JMeter

## Work Experience
### Software Engineer 3 @ eBay
Jan 2025 – Present | San Jose, California, United States

### Software Engineer 2 @ eBay
Jan 2024 – Jan 2025 | San Jose, California, United States

### Software Engineer Intern @ eBay
Jan 2023 – Jan 2023 | United States
o Developed an internal Transaction Data Triage web application with four pages, enabled one-place automatic data searching, aggregation, and analysis, which allows developers to swiftly resolve data inconsistency issues by promptly identifying and addressing root causes. Designed & implemented RESTful APIs with various Triage Logics by integrating multiple distributed services and databases.
o Utilized TypeScript, React, Node.js, and Ant Design to implement a set of dynamic and interactable interfaces.
o Developed backend service with Kotlin, Java, Spring Boot, and Elasticsearch for efficient data storage and retrieval.
o Collaborated with cross-functional teams, implemented a robust CI/CD pipeline based on Jenkin, ensuring seamless deployment of the tool into the production environment resides in the eBay Cloud platform.
o Experience and knowledge of processing large-scale data operations in a distributed system environment, for example, batch processing techniques for data aggregation.

### Software Engineer Intern @ Sensorscall
Jan 2022 – Jan 2022 | Atlanta, Georgia, United States
o Distributed Voice over IP (VoIP) System Development with Java, Spring Boot, and Netty for real-time voice communication between Mobile App and senior people caring device.
• Reimplemented the UDP server from native iterative type request listener to async event-driven type request listener by Netty. 
• Implemented the RESTful API with Spring Boot to enable the system with internal state checking and modifying.
• Implemented the system health and communication performance metrics monitoring with Spring Actuator and Prometheus. Configured the Grafana for metrics querying and system states tracking dashboard.
• Cooperated with Mobile App team and embedding team to improve the UDP communication protocol to support complex communication scenarios (e.g., signaling, retrying and network switch handling).

### Assistant Project Manager @ Creative Contractors Inc.
Jan 2015 – Jan 2022 | Tampa, Florida, United States
• Construction Project Management including scope developing; plan reviewing; bidding management; estimating; schedule/status controlling and forecasting; construction field condition analysis and controlling
• Construction Financial Management including budgeting & cash flow control; cost analysis; value engineering; change order processing
• Building Information Modeling (BIM) support including Architectural/Structural/MEP modeling, model clashes detection and coordination
• Sustainable Construction support including Green Building product data collecting and processing; building LEED certification management

Projects:
· Zephyrhills High School – Zephyrhills, FL - $33.4 million | 2021 
· H. Lee Moffitt Cancer Center Clinical Support Building – Tampa, FL - $51.1 million | 2020  
· SPP District Cooling Station – Tampa, FL - $11.3 million | 2019 
· Lakeland Regional Health Pavilion for Women and Children – Lakeland, FL - $178 million | 2018 
· Lakeland Regional Health Central Energy Plant – Lakeland, FL - $23.5 million | 2016 
· Lakeland Regional Health Parking Structure – Lakeland, FL - $13.4 million | 2016

### Engineering Professional Intern @ Walt Disney World
Jan 2014 – Jan 2014
Project management and construction site support for global roofing program for all Disney Parks and Resorts: 
· Bidding process management and bids documents organizing 
· Plan reading, Quantity take-off, Critical Path Method (CPM) scheduling 
· Roofing design BIM coordinate supporting


## Education
### Master's degree in Computer Science
Georgia Institute of Technology
Jan 2020 – Jan 2023

### Master’s Degree in Construction Management
University of Florida
Jan 2012 – Jan 2014

### Bachelor’s Degree in Construction Management (Estimating Track)
Qingdao University of Technology
Jan 2008 – Jan 2012


## Contact & Social
- LinkedIn: https://linkedin.com/in/swang895

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Source: https://flows.cv/saiwang
JSON Resume: https://flows.cv/saiwang/resume.json
Last updated: 2026-03-29