Josh Johnston
CTO at X-Team
Melbourne, Victoria, Australia
Summary
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RockstarJosh Johnston is a seasoned technology leader and CTO at X-Team with 15 years of hands-on experience building reliable software from front-end components to editor tooling. Based in Melbourne, he combines strategic engineering leadership with active open-source contributions, notably improving usability and robustness in projects like a popular Emacs region-expansion extension and a widely used React visibility sensor. Josh pairs product-focused thinking with pragmatic engineering: he’s implemented contract-region logic, namespaced and buffer-localized variables in Emacs Lisp, and introduced tests and modern React upgrades to ensure maintainability. Known for translating subtle UX and edge-case behaviors into resilient code, he brings both long-term technical vision and a developer-first empathy to distributed teams.
15 years of coding experience
Stackoverflow
746reputation
794kreached
9answers
0questions
file-upload
top-5%
Github Skills (20)
javascript10
component-development10
emacs-lisp10
front-end-development10
react10
data-structure9
algorithm9
algorithms9
props9
prop9
file-upload9
data-structures9
computer-engineering8
html6
mobile-safari6
Programming languages (7)
Github contributions (5)
joshwnj/react-visibility-sensor
Sep 2014 - Jul 2019
Sensor component for React that notifies you when it goes in or out of the window viewport.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:191 commits, 60 PRs, 123 pushes in 4 years 11 months
Contributions summary:Josh primarily contributed to the development of a React component for detecting visibility within the viewport. Their work included adding tests and integrating a testing framework (Mocha/Karma), suggesting a focus on ensuring the component's reliability and functionality. They also made improvements to the examples of how to use the component and upgraded to React 0.13.1, 0.14 and 0.15.
positionreacttiltviewportpinch
magnars/expand-region.el
Jan 2012 - Jan 2012
Emacs extension to increase selected region by semantic units.
Role in this project:Backend Developer
Backend DeveloperContributions:8 commits in 7 days
Contributions summary:Josh primarily worked on enhancing the `expand-region.el` Emacs extension. Their contributions focused on implementing functionality to contract a region, tracking region start and end points to enable this functionality. They also improved the code by namespacing variables, making history variables buffer-local, and adding error messages. These improvements, including refactoring and bug fixes, aimed at improving the extension's reliability and usability.
elispspacemacsunitsregionemacs
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