John-paul Harold
Software Engineer at Paramount
Stony Stratford, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolJohn-paul Harold is a seasoned Software Engineer with a decade of experience specialising in Connected TV and frontend development, currently contracting at Paramount where he brings PlutoTV tech to FreeviewPlay and YouView devices. He has deep practical knowledge of platform APIs (OIPF, YouView), DRM, and video player integrations, and has built lightweight TV-ready single-page app frameworks using vanilla JavaScript. Previously a senior engineer at Accedo.tv, he modernised large React codebases, improved test coverage, designed video player adapters and led performance work for low-resource devices. An active full‑stack contributor to open source, he implemented multiple Web Audio API effects for the popular pizzicato library and maintains a strong focus on testing, automation and pragmatic engineering. Based in Stony Stratford, he combines a background in digital content with a knack for making media-rich, resource-constrained platforms feel responsive and robust.
11 years of coding experience
8 years of employment as a software developer
Bachelor of Arts (BA), English, Bachelor of Arts (BA), English at London Metropolitan University
Github Skills (5)
sounds10
audio10
effects10
javascript10
web-audio-api10
Programming languages (5)
Github contributions (5)
alemangui/pizzicato
Jun 2016 - Sep 2016
Library to simplify the way you create and manipulate sounds with the Web Audio API.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:1 review, 14 commits, 8 PRs in 3 months
Contributions summary:John-paul significantly contributed to the `pizzicato` library, primarily by implementing new audio effects, including Convolver, PingPong Delay, Ring Modulator, Tremolo, and Dub Delay. Their work involved writing JavaScript code to manipulate Web Audio API nodes, including implementing algorithms for creating and managing audio effects. In addition to the core effect implementations, the user also updated the project's documentation, tests, and ReadMe files.
web-audio-apijavascriptsoundaudio
JohnPaulHarold/mithril_test
Jan 2016 - Mar 2017
Contributions:12 PRs, 48 pushes, 15 branches in 1 year 2 months
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