Available to hire
I’m Sarah Dong, a front-end developer based in Los Angeles with over five years of experience delivering dynamic, high-quality web applications. I specialize in building scalable front-end architectures and crafting reusable UI components that boost performance and maintainability.
I enjoy collaborating across teams, translating design concepts into polished interfaces, and guiding students as an Adjunct Professor. My work emphasizes clean code, performance, and responsive design.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Work Experience
Adjunct Professor at California State University - Fullerton
August 1, 2024 - PresentDesigned and delivered engaging lectures on frontend development (HTML5, CSS3, JavaScript (ES6+), and React), created slides and materials to simplify complex concepts, and accelerated student learning. Developed coding exercises to help students practice core concepts and write production-quality code. Guided students through a comprehensive final project — a React-based shopping cart application — covering design, implementation, testing, and deployment, providing hands-on experience with real-world frontend workflows. Conducted detailed code reviews on student projects, providing feedback on best practices, maintainability, performance, and responsive design to reinforce engineering standards.
Front End Software Engineer at Camp Bow Wow
October 1, 2021 - June 1, 2025Spearheaded the development of a scalable in-house web application supporting service scheduling, appointment management, payment processing, employee allocation, and operational monitoring across multiple locations. Implemented live video monitoring features by integrating streaming endpoints and building responsive playback interfaces with ReactPlayer, ensuring reliable viewing across browsers and devices. Refactored the payment workflow to reduce unnecessary component renders and streamline API interactions, improving checkout performance by approximately 20% and delivering a smoother user experience. Built responsive, user-friendly interfaces using React, JavaScript (ES6+), HTML, and CSS, focusing on usability, performance, and maintainability. Participated in the full Software Development Life Cycle (SDLC), including requirements analysis, design discussions, implementation, testing, debugging, and production deployment. Integrated frontend systems with backend APIs to enable real
Front End Software Engineer at Rivian Automotive, Inc.
April 1, 2021 - October 1, 2021Developed React-based frontend features for a supply chain management system, enabling vendors to access orders and synchronize with back-office operations. Optimized component logic and code reuse using Higher-Order Components. Integrated frontend with cloud services and backend APIs to support real-time workflows and data synchronization. Collaborated in design reviews, debugging, and feature planning to ensure high-quality releases.
Education
Master of Science in Computer Science at University of Southern California
January 11, 2030 - March 17, 2026Bachelor of Science in Computer Science at Capital University of Economics and Business
January 11, 2030 - March 17, 2026Qualifications
Industry Experience
Software & Internet, Education
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Hire a Front-End Developer
We have the best front-end developer experts on Twine. Hire a front-end developer in Los Angeles today.