Jonah Fox, Software Developer in London, United Kingdom
Jonah Fox

Software Developer in London, United Kingdom

Member since January 6, 2020
Jonah is a highly skilled technologist with 20 years' experience across a broad range of sectors including gaming, health, finance, and music in both startups and corporations. He has expert level proficiency in a large set of software technologies from full-stack development, UX, product development, web and mobile, and server-side. He thrives on solving business problems quickly through the pragmatic use of technology.
Jonah is now available for hire


  • Studio Amplify
    MongoDB, Node.js, React Native, OpenGL, JavaScript, Objective-C, C++...
  • Parker Fox
    MySQL, Ruby on Rails (RoR), Ruby, CSS, HTML, JavaScript, SQL, C#, C...
  • Global Gaming
    Microsoft SQL Server, C#, APIs, SQL



London, United Kingdom



Preferred Environment

Xcode, Git, Visual Studio Code, MacOS, SQL

The most amazing...

...project I've coded is KRFT, a completely new modular way to make music on the iPad. It been featured as App of the Day multiple times by Apple.


  • Founder

    2012 - PRESENT
    Studio Amplify
    • Built several music-making apps that we featured on Apple's App Store using JavaScript, Objective C, C++, and DSP.
    • Created a custom data management system for a members club using Node.js and MySQL.
    • Created a social video creation network using Firebase, C++, and JavaScript.
    • Built a mindful app that was featured as App of the Day by Apple.
    • Created a powerful video processing library using GLSL for use with iOS.
    • Built a machine learning face-swapping service for "Cats" movie.
    Technologies: MongoDB, Node.js, React Native, OpenGL, JavaScript, Objective-C, C++, Full-stack, APIs, SQL
  • Founder

    2004 - 2010
    Parker Fox
    • Built a financial management system that processed $100 million of payments a month.
    • Built and optimized application forms using analytics.
    • Hired, trained, and mentored 10+ members of staff.
    • Built a bespoke eCommerce system and back end for a jewelry store.
    • Scoped, specced, built, and managed customer relationship management system.
    • Built a social network for healthcare practitioners.
    Technologies: MySQL, Ruby on Rails (RoR), Ruby, CSS, HTML, JavaScript, SQL, C#, C, Full-stack, APIs
  • CTO

    2006 - 2007
    Global Gaming
    • Built and oversaw sports betting markets arbitraging prices between different events and platforms.
    • Managed stakeholder management and investor relations.
    • Managed team building trading software system.
    • Researched and developed trading strategies.
    • Built speculative systems for exploring carbon credits markets.
    Technologies: Microsoft SQL Server, C#, APIs, SQL
  • Audio Programmer

    2000 - 2002
    Sony Computer Entertainment Europe
    • Built first audio engine for Sony PS2.
    • Contributed to sound programming for PS2 game Dropship.
    Technologies: DSP, C++, APIs
  • Mathematical Analyst

    1994 - 1995
    Hydro International
    • Provided unique mathematical analysis for a tipping gate mechanism that led to a Queen's Award for the Environment.
    • Completed mathematical modeling and comparison with physical measurements of forces on a 90-degree drop pipe.
    Technologies: PTC Mathcad


  • COSM - iOS App

    Cosm is an iOS app we conceived and built.

    "Cosm lets you quickly and easily create your own ambient soundscape to relax and refocus. We believe music and creativity have an important role to play in improving our minds and souls."

    App Store Award: App of the Day.
    4.8 out of 5 stars

  • KRFT - iOS App

    "A Modular Instrument for Music Production

    KRFT is a modular instrument for expressive music production that we built to challenge the two-decade-old paradigm of the multi-track DAW.

    Designed from the ground up with a focus on live experimentation and expressive interactions, KRFT will inspire you to make music that would normally be out of reach."

    * App of the Day
    * 4.7 of of 5 Stars
    * App Store 2017: New Apps we love in 50+ countries

  • ChillScape - Sonic Meditation

    "ChillScape is a tool for quick bursts of mindfulness and anxiety relief. Lose yourself in the mesmerizing graphics and beautiful soundscape that are both inspiring and calming. It can be used to relax, focus the mind, or filter out unwanted distractions such as pain or negative thoughts."

    App Store 2017: New Apps we love in 50+ countries


  • Languages

    SQL, Ruby, C++, JavaScript, Objective-C, HTML, C, CSS, GLSL, C#
  • Libraries/APIs

    OpenGL, Node.js
  • Platforms

    iOS, Android, Firebase, Linode, MacOS, Visual Studio Code
  • Other

    DSP, Front-end, Digital Signal Processing, Full-stack, APIs
  • Frameworks

    React Native, Ruby on Rails (RoR)
  • Tools

    Adobe Photoshop, Git, Xcode
  • Paradigms

    Agile Software Development
  • Storage

    MySQL, MongoDB, Google Cloud, Microsoft SQL Server


  • Master's Degree in Electroacoustic Composition
    2003 - 2004
    City University - London, England
  • Bachelor of Science Degree with First Class Honors in Physics
    1996 - 1999
    Imperial College London - London, England

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