6 years of experience in Frontend development. Passionate about Frontend / Fullstack development, and problem solving Technical Skills - Language: JavaScript, PHP, Typescript, HTML, CSS, XML, JSON - Tech & Tools: React, ExtJs, Webpack, jQuery, MongoDB, MySQL, SQLite, Perforce, and GIT

2022 — NowGoogleSoftware Engineer

2022 — Now

Mountain View, California, United States

Customer Engagement

2021 — 2022Palo Alto NetworksSr Software Engineer

2021 — 2022

San Francisco Bay Area

Working on PanOS UI infrastructure.

Worked on the “CentOS Upgrade” feature. Upgraded components in the Management UI infrastructure, including Nginx, Apache HTTP Server, and PHP to the latest stable versions. Refactored codes in upgraded components in order to make sure the Management UI infrastructure works without regression. Added unit tests into the CICD pipeline to guarantee code refactoring is covered as much as possible. Improved UI infrastructure performance by 20% according to stress tests’ results.

Migrated ExtJS framework codebase to TypeScript and React, and introduced bundling, package management, and unit tests (by Jest) to UI codebase. With bundling and package management, decoupled UI logic into isolated components, and be able to manage components’ versions individually by yarn. Added unit tests to increase code coverage to 80%.

2018 — 2021Palo Alto NetworksSr Software Engineer

2018 — 2021

San Francisco Bay Area

Worked as a core front-end / full-stack engineer in Prisma Access product.

Developed user interface for Palo Alto Networks’ Prisma Access product on the Panorama platform. Used JavaScript, ExtJS, and React as frontend and PHP as middleware. JEST is used as the unit test framework.

Developed the data visualization dashboard to monitor cloud firewalls’ real-time status and metrics. Built grids using ExtJS and React to show cloud firewalls’ metrics, for example, configuration status, logging status, traffic throughput, network settings, etc. Utilized mapael.js (JS map library) to build a world map showing firewall and gateway real-time metrics by their geolocation. Implemented interactive UI workflow to improve user experience in both grids and the world map.

Developed the Multi-Tenant feature of Palo Alto Networks’ Prisma Access product, which allows customers to manage multiple customized security configurations by tenants. Used JavaScript and ExtJS to build UI interface, and PHP as the serverside script to build the data middle layer. MongoDB was also used on the client-side as a cache for reading operations.

Mentored the Prisma Access UI team to ramp up product design and code development to guarantee the quality of deliverables.

2016 — 2018Palo Alto NetworksSoftware Engineer

2016 — 2018

San Francisco Bay Area

Worked as a front-end engineer in the Next-Gen Firewall Management UI team.

Developed User Interface of “Troubleshooting” feature on PanOS platform. This feature allows customers to troubleshoot firewall and Panorama’s policy hit, network connection and throughput, and log collector service status. ExtJS is used as the frontend and PHP is used as middleware.

Developed the “Single Signon” login UI of the PanOS platform. This feature allows customers to use 3rd party identity provider to log in to Palo Alto Networks Firewall products. Used JavaScript and ExtJS to render user interface, PHP to handle requests with authentication and session data in XML format.