# Haiyu Zhen

> SDE III at AWS | ex-Google, DoorDash

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

I am passionate about building large-scale resilient systems and thinking innovatively to help companies achieve business impact and growth.

➤ Experience in backend development, fullstack development and cloud computing.
➤ Industry Knowledge: cloud architecture, distributed systems, large-scale data processing
➤ Programming Languages: Java, Kotlin, C++, Python, Go, JavaScript

## Work Experience
### Senior Software Engineer @ Amazon Web Services (AWS)
Jan 2023 – Present | San Francisco Bay Area
Working on Key Management Service (KMS) to build scalable and performant Big Data infrastructure and tooling to support KMS's millions of TPS and 5-9s availability SLA.

### Senior Software Engineer @ DoorDash
Jan 2021 – Jan 2022 | Greater Toronto Area, Canada
2022.07 - 2022.12 Marketplace Pricing
2021.07 - 2022.07 Canada Growth

### Software Engineer @ Google
Jan 2017 – Jan 2021 | Kitchener, Canada Area
2019.07 - 2021.07 GCP Serverless Eventarc
2017.07 - 2019.07 Stadia Graphics Tools

### Software Engineer, Tools and Infrastructure Intern @ Google
Jan 2017 – Jan 2017 | San Francisco Bay Area
Worked on Google Cloud Platform Integration Testing
- Created a metrics dashboard to measure the health of Systems Under Test

### Software Engineer, Tools and Infrastructure Intern @ Google
Jan 2016 – Jan 2016 | Greater New York City Area
Launchpad 2 full-stack web application
- Built a versatile and useful interface for managing multiple servers for local development and testing purposes
- Used Angular 2 Components with Dart to create Material Design web application
- Built backend servers to start local processes and response to frontend application
- Designed Client/Server RESTful APIs

### Application Developer (part-time) @ DAC Group
Jan 2016 – Jan 2016
Worked on a marketing analytics platform prototype from scratch
- Created own tracker, and hosted tracking script in Amazon S3 bucket
- Designed APIs between tracker and collector, and implemented collector in ASP.NET 5
- Created sample advertisement distribution between Publisher and Advertiser in Revive Ad Server
- Came up with algorithms for construction of conversion paths to analyze marketing attribution of various advertising campaigns
- Used D3.js for conversion path visualization

### R&D Intern @ MoboTap
Jan 2013 – Jan 2014
- Worked on personalized news push system based on Machine Learning algorithms, such as Word2Vec
- Analyzed user’s news browsing habits and provided feedback to product managers

### Research Intern @ Ottawa University
Jan 2013 – Jan 2013 | Ottawa, Canada Area
- Worked on algorithms to represent different motions distinguishingly
- Helped develop PCA-LPM model for fast action recognition


## Education
### Master of Mathematics in Computer Science
University of Waterloo

### Bachelor's degree in Electrical, Electronics and Communications Engineering
Huazhong University of Science and Technology


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

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