Open to opportunities

Jacky Chen

@jackychen3

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Senior frontend engineer building real-time AI video, content, and fintech web experiences.

United States

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What I'm looking for

I’m looking for a frontend role where I can build real-time, accessible product experiences—especially for AI video/content workflows—while partnering with product and backend teams to iterate fast, improve performance, and mentor others in an Agile culture.

I’m a Senior Software Engineer focused on frontend for AI products, video/content platforms, and high-scale fintech experiences. I build real-time, event-driven UI systems that help teams ship faster and keep live workflows responsive under real user load.

At Runway, I engineered real-time data processing pipelines for AI-generated video editing workflows using WebSockets, GraphQL subscriptions, and event-driven architecture—cutting live update latency by 45%. I led a migration of a legacy frontend codebase to Next.js and TypeScript, reducing production bugs by 41% while improving developer productivity by 30%. I also integrated GraphQL and REST APIs to reduce data-fetch latency by 27%.

I strengthen quality through automated testing with Jest, React Testing Library, and Cypress (55% to 87% coverage) and by improving accessibility to WCAG 2.1 AA. Earlier, at Cleo and Chime, I delivered responsive dashboards and customer-facing apps using React, Redux, and TypeScript for 1M+ users, boosting retention and session duration while improving performance and reliability. I’m energized by cross-functional, Agile/Scrum collaboration and mentoring—mentoring 5+ junior developers and raising frontend best practices across the team.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Runway

May 2023 - Present (3 years 1 month)

Engineered real-time data processing pipelines for AI-generated video editing workflows using WebSockets, GraphQL subscriptions, and event-driven architecture, reducing live update latency by 45%. Led migration to Next.js and TypeScript, cutting production bugs by 41% and improving developer productivity by 30%, while improving accessibility compliance to WCAG 2.1 AA.

WebSockets GraphQL Subscriptions Next.js TypeScript React Event Driven Architecture Jest Cypress WCAG 2.1 AA Performance Optimization

Frontend Engineer

Cleo

Jul 2021 - May 2023 (1 year 10 months)

Developed responsive fintech dashboard and customer web apps with React, Redux, and TypeScript for 1M+ users, increasing retention by 19% and session duration by 24%. Improved performance by reducing initial load time 32%, integrated OAuth/JWT authentication, implemented A/B testing and feature flags, and reduced production issues by 28% using Jest and Cypress.

React Redux TypeScript styled components OAuth Jest Cypress A B Testing Performance Optimization Accessibility

Frontend Developer

Chime

Jan 2020 - Aug 2021 (1 year 7 months)

Built and maintained scalable frontend features for digital banking products used by millions, improving user satisfaction by 17% through enhanced account and transaction experiences. Integrated REST APIs, refactored legacy code into reusable components to reduce maintenance by 25%, improved cross-browser compatibility and accessibility, and decreased incident reports by 30% through debugging supp

Javascript (ES6)Redux REST APIs HTML5 CSS3 Browser compatibility Refactoring Performance Optimization