# William Ma

> Software Engineer

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

## Work Experience
### Software Engineer @ Reevo
Jan 2026 – Present | Santa Clara, California, United States

### Software Engineer @ DoorDash
Jan 2018 – Jan 2024
Tech lead for Merchant Business Management team

### Frontend Engineer Intern @ Facebook
Jan 2017 – Jan 2017 | Menlo Park, California
Part of the Nuclide team.

Created an internal package manager with React, Relay, and ReactiveX for employees to upload/download packages.
Added an "open new terminal here" option to the context menu of breadcrumbs and file tabs.

### Software Engineer Internship @ Google
Jan 2017 – Jan 2017 | Greater Seattle Area
Part of the Google Maps for Android team.

Worked on increasing the volume of feedback reports, as well as improving their fix rates, and decreasing the time to resolve each issue.
Assisted in making tutorial triggering smarter.

### Software Engineer Internship @ Yahoo! Inc.
Jan 2016 – Jan 2016 | Sunnyvale, CA
Part of Polyvore revenue engineering team.

Strategically added a monetized outbound link which resulted in a revenue increase of ~7%.
Added cost-per-click monetization to four different pages, which increased revenue by 2%.
Used A/B testing to safely review the affects of high-impact changes.

### Web/Mobile Developer Internship @ BDA Entertainment Inc.
Jan 2015 – Jan 2015 | Mississauga, ON
Designed and developed entire live chat system in C# and JavaScript using SignalR library, which uses websockets, and downgrades to other methods of communication when websockets are unsupported.
Up to 50000 messages are sent every day.
Features emojis, message formatting commands, anti-spam prevention, word filter, and blocking/unblocking capabilities.
Extremely smooth UI with draggable and resizable chat windows, user lists, and seamless loading of older messages.

### Software Consultant Internship @ Systemgroup Consulting Inc
Jan 2014 – Jan 2015 | Mississauga, ON
Optimized daily job calculations making them run up to 50% faster using SQL stored procedures combined with C#.
Refactored and reduced thousands of lines of code using reflection and extension methods.
Applied styling to entire website which resulted in great feedback from the client.

(Position held intermittently from May 2014 to August 2014, and January 2015 to May 2015)


## Education
### University of Waterloo


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

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Source: https://flows.cv/williamma
JSON Resume: https://flows.cv/williamma/resume.json
Last updated: 2026-03-22