Software Engineer Front End

Jeffrey Zhang

San Diego, CA 858-***-**** **********@*****.*** LinkedIn Github

Education

University of California, Los Angeles

B.S. Applied Mathematics June 2022

Hack Reactor

Certificate in Advanced Software Engineering Jan 2023 Technical Skills

Front End: JavaScript, React, React Native, HTML, CSS, Redux, TypeScript, Next.js, Tailwind CSS, SEO, Swift Back End: Node, Express, MongoDB, PostgreSQL, MySQL, RESTful API, Firebase, Java, C++, Python, Nginx Testing/Deployment: Docker, Jest, Mocha, Chai, AWS: EC2, Test Driven Development (TDD) Developer Tools: Vim, Git, Nginx, Webpack, Babel, Agile Methodology, Scrum, npm Experience

Software Engineer Intern

Checkins.ai Sep 2023 - Mar 2024

● Contributed 25% of overall code additions to main HotelCheckins site while optimizing existing Javascript codebase, resulting in streamlined performance for hotel listings and room details.

● Achieved a 5x boost in website speeds by migrating codebase to Next.js, leveraging server-side rendering to improve initial page loading, interactivity and user experience for a faster, responsive site.

● Implemented scalable design system across codebase using Tailwind CSS for consistency and mobile responsiveness across various browsers, mobile and tablet devices.

● Crafted an accessible site structure, benefiting users and visibility with SEO best practices. Projects

Full Stack Software Engineer PAGER Github Repo Jan 2023 A full-stack social networking mobile app similar to that of popular dating app, Tinder, with group, swipe and chat features.

● Designed the structure of group elements for members of a group while conditionally rendering owner settings with React Native, Javascript and Redux for the group organizer to manage their groups.

● Managed a Firebase database and global Redux states to handle group information for all users.

● Implemented various formatting methods to convert Firebase timestamps into JavaScript objects in UTC format, and then into local time for schedule creation by the group organizer. Back End Software Engineer Gaviali Github Repo Jan 2023 A scalable back-end with routes and database capable of managing thousands of active users.

● Implemented a PostgreSQL database with Express routes to handle data with various API requests.

● Optimized queries, middleware logging and clustering for efficient response times and scalability.

● Significantly reduced response times from 6s to <200ms for at least 1000 clients per second, by deploying four Amazon EC2 instances behind an Nginx load balancer with caching, two Express servers, and a PostgreSQL database populated with millions of rows of data. Front End Software Developer Perfect Dark Github Repo Dec 2022 A front-end application for navigating a professional shopping inventory with focus on user experience.

● Designed an array of product details and styles using Javascript and HTML, with each product paired with their own selection of a digital picture gallery for customers to switch between.

● Developed a custom 2.5x magnifying tool without the use of a library with various React and server-side CSS techniques for the user to view images, increasing user interaction and purchase rates.

● Built test suites using Jest, ensuring high code coverage and detecting bugs throughout development.

● Communicated in a team of four developers with a Git workflow and Trello board to log progress.

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