Joe Yu Email & Phone Number

San Mateo, California, Us

I get paged and solve eng crisis.I also make our web pages load faster for big customers.

San Mateo, California, Us

Events and Api Team- Designed and implemented a REST API service using Go and AWS to shorten URLS for event notifications, serving 3+ million requests across multiple teams

Eden Prairie, Minnesota, Us

Security Scanner Backend Team- Developed a REST API service in Go to validate the release and portability of a vulnerability scanner to 1+ million clients- Implemented dynamic time to live (TTL) for Redis caching, resulting in a 5x reduction in peak upstream service traffic- Extended vulnerability scanning to Windows 8.1 Embedded OS, providing support to over 1000 clients- Optimized security reports sent to AWS S3, resulting in an annual storage saving of over $144,000- Developed an internal Slack bot with 100+ daily users using AWS Lambda and EC2 that accesses internal documentation

Kitchener, On, Ca

Datalink Ruby on Rails Team- Redesigned and implemented development infrastructure with Docker and Puma web server to integrate diagnostic tooling, resulting in an increase o fdeveloper efficiency by 10%- Developed a REST API service to transfer user data to downstream service, resulting in a 95%reduction in related customer support tickets- Implemented server side data validation using Ruby on Rails to reduce API failure by 30% caused by invalid user input- Prevented cross site scripting vulnerabilities by aggregating a whitelist for HTTP Content Security Policy response header and refactoring inline JavaScript

Ca

Data Integration Team- Developed tax evasion detection features for a tax auditing application using Java Swing and Struts 2- Implemented ETL processes using Java to transfer data between multiple data sources to create a training environment to onboard auditors- Integrated Adobe Analytics into a metrics dashboard to generate user interaction analytics- Spearheaded the introduction of agile methodologies to improve efficiency in development life‑cycle

Waterloo, Ontario, Ca

Indoor Mapping Team - Automated testing for indoor mapping product using Cypress and Gemini to reduce regression bugs by 20%- Built a script using Bash, Docker and Node.js to modify test data to reproduce bugs related to geolocation-Improved performance of Kalman filter algorithm based on compiled user data, ensuring better predictions for geopositioning feature- Devised testing methodology and standards for stress tests on hardware units to determine long‑term performance and durability

Toronto, Ontario, Ca

TOHacks is a non-profit organization that seeks to foster an inclusive environment that promises to embolden students toward pursuing a career in STEAM by developing and recognizing their imaginative mindsets, entrepreneurial visions and coding skillsets.As the Special Projects Director, I lead a team that reaches out to various organizations and companies in the STEAM field to establish continued partnerships on host future hackathons, conferences and networking events.

TEDxScaredHeartsCHS delivers on the theme of innovating the future with an event filled with exceptional speakers, thought-provoking video and engaging conversations. Targeting an audience of selected students within the YCDSB, this event seeks to influence the career path and perspectives of the future entrepreneurs and leaders. I was selected as both the host speaker and event coordinator, focusing on addressing the crowd between the various speakers, along with the opening and closing remarks along with overseeing a team of volunteers for logistical operations.

Bachelor'S Degree, Computer Science

Education record

Ontario Secondary School Diploma