# Carroll Yu

> Engineering @ Uber

Location: San Francisco, California, United States
Profile: https://flows.cv/carroll

Carroll was born and raised in San Francisco with a strong passion for developing web applications ranging from content driven platforms to e-ticketing, e-commerce and logistics services. Exploring new places, food, music, and photography are also within his interests.

## Work Experience
### Senior Software Engineer @ Uber
Jan 2022 – Present

### Staff Software Engineer - Platform @ Walmart Global Tech
Jan 2021 – Jan 2022 | San Francisco Bay Area
Web Platform team - Shared Components (walmart.com)

Rewrote and launched the new walmart.com as a single page app and monorepo that scales across global Walmart entities and businesses. Built, fixed, served and maintained all ADA compliant globally shared UI components (i.e. Product Tile, Item Carousel, Global Navigation - Header/Footer) used by 30+ web teams across the entire Walmart web platform. Owned mobile app download conversion and digital rewards initiative from beginning to launch.

Typescript, React, NextJS, GraphQL, React Query, Tachyons, Jest, Test Cafe, Testing Library, Webpack

### Senior Software Engineer - Search @ Walmart Global Tech
Jan 2019 – Jan 2021 | San Francisco Bay Area
Search Frontend Core team (walmart.com/search).

Re-architected search page from legacy to new platform web app and onboarded team to new tech stack. Performed site speed audits through lowering of bundle sizes and load/run time optimizations.

Javascript, Typescript, React, GraphQL, NextJS, Node.js, Tachyons, Stylus, Jest, Enzyme, Mocha, Webpack

### Senior Software Engineer - Verticals @ Walmart Global Tech
Jan 2018 – Jan 2019 | San Francisco Bay Area
Discovery/Fashion vertical eCommerce team (walmart.com/fashion).

Led a team of 4 engineers providing technical leadership, mentoring, onboarding, hiring and agile workflow. Shipped multiple initiatives/features to help drive better "fashion" related metrics in SEO, revenue, growth and order rates.

Universal React apps. Isomorphic Javascript.
Tools: React, Redux, Javascript, Node.js, Mocha, Enzyme, Stylus, Webpack, Gulp

### Senior Software Engineer (Full-Stack) - Growth & Revenue @ Le Tote
Jan 2018 – Jan 2018 | San Francisco Bay Area
Growth & Revenue team for fashion rental subscription eCommerce. Maximizing conversions and revenue, owning the entire onboarding experience from registration through checkout.

Tools: React, Redux, Javascript, GraphQL, Ruby on Rails, SASS, Optimizely, Split, Webpack, Mocha, Enzyme

### Software Engineer (Full-Stack) - Growth & Revenue @ Le Tote
Jan 2017 – Jan 2018

### Software Engineer (Frontend) @ Common Sense Media
Jan 2015 – Jan 2016 | San Francisco Bay Area
- Handle front-end migration work of all content types from two CMS platforms into one. 
- Rebuilt the entire user experience of the user profile page and user account management panel.
- Created site-wide re-usable UI components and improved mobile responsiveness across website.

Tools: PHP, jQuery, CSS, HTML, Drupal

### Software Engineer (Full-Stack) @ TicketSocket
Jan 2014 – Jan 2015 | Greater San Diego Area
- Reduced 90% of failed email rate by integrating external mail services for email distribution. 
- Rebuilt authentication and checkout flow lowering cart abandonment rate by 50%.
- Built a custom plug that creates reservations for a globally renowned 2-Michelin-star restaurant (noma). 
- Integrated a cross-platform responsive theme onto entire platform (Bootstrap 3, jQuery, other libs).
- Implemented an appearance feature to easily allow different layouts in the checkout process.

Tools: PHP, Laravel, MySQL, jQuery, Bootstrap

### Software Engineer (Backend) @ Titan Health & Security Technologies, Inc.
Jan 2013 – Jan 2014
- Built server-side functionality for a web app which consists of features such as voice communication, chatting, sending images, GPS, push notifications, and history logging. 
- Refactored source code and migrated project onto a MVC framework (Laravel).

Tools: Laravel, PHP, MySQL, HTML, Bootstrap

### Founder @ Nyuubi Ragnarok Online (Private MMORPG Server)
Jan 2008 – Jan 2013
- Created a virtual community that has reached over 3,000 registered users, whose monetary donations secured operation costs for the subsequent years.
- Managed all aspects of private online gaming server end-to-end, from back-end development/emulation to consumer facing aspects including marketing and staff management.

Tools: PHP, HTML, jQuery, CSS, MySQL, C, Lua, XML


## Education
### Computer Science
UC San Diego


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

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