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Jesse Manning

PROFILE

Jesse Manning

Jesse contributed to the mozilla/build-a-b repository over two months, delivering eight features and a security fix focused on onboarding, animation, and audio system improvements. He modernized audio management by migrating to Howler.js, implemented a preloader hook, and addressed iOS audio context recovery, enhancing reliability across browsers and devices. Using React and TypeScript, Jesse refined UI navigation, integrated Lottie animations for richer effects, and improved onboarding flows for new users. He also upgraded Next.js to address a critical CVE, demonstrating attention to security and maintainability. His work balanced front-end development, audio programming, and UI/UX design for robust user experiences.

Overall Statistics

Feature vs Bugs

89%Features

Repository Contributions

23Total
Bugs
1
Commits
23
Features
8
Lines of code
2,411
Activity Months2

Work History

December 2025

7 Commits • 2 Features

Dec 1, 2025

Month: 2025-12 — Delivered high-value features, hardened security, and improved UX for mozilla/build-a-b. Key outcomes include migrating the audio system to Howler.js with a new preloader hook and mobile/iOS optimizations, implementing audio-context-recovery, and removing legacy audio tests as part of system refactor; addressed critical CVE by upgrading Next.js to 15.4.8; improved PLAY DATA WAR header readability. These efforts improved reliability, performance, and maintainability across web and mobile clients, delivering measurable business value through better user experience and reduced security risk.

November 2025

16 Commits • 6 Features

Nov 1, 2025

Month 2025-11 — Mozilla Build-a-b delivered a focused set of UX, animation, and audio enhancements that boost onboarding, engagement, and cross‑browser reliability. Key features were implemented with careful UI alignment, animation layering, and performance considerations, driving clearer first‑run experiences and more consistent behavior across devices.

Activity

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Quality Metrics

Correctness98.4%
Maintainability90.4%
Architecture93.0%
Performance90.4%
AI Usage22.6%

Skills & Technologies

Programming Languages

JSONJavaScriptNoneTypeScript

Technical Skills

Howler.jsNext.jsReactTypeScriptUI/UX Designanimation handlinganimation integrationaudio managementaudio programmingfront end developmentfull stack developmenttesting

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

mozilla/build-a-b

Nov 2025 Dec 2025
2 Months active

Languages Used

JSONJavaScriptNoneTypeScript

Technical Skills

ReactTypeScriptUI/UX Designanimation handlinganimation integrationfront end development