David Waller
Frontend Engineer at Kahoot!
Ystad, Sweden
Summary
🤩
Rockstar🎓
Top SchoolDavid Waller is a seasoned Frontend Engineer with 16 years of experience building interactive web applications and internal tools, currently working on R&D frontend at Kahoot! from Ystad, Sweden. He brings deep JavaScript expertise—demonstrated by contributions to the popular Backbone.js repository where he improved collection sorting, performance, and documentation—and practical React/D3 integration work on react-faux-dom for richer visualizations. Comfortable across TypeScript, React and GraphQL stacks, he has supported Fortune 500 internal apps and taught advanced JavaScript courses, blending hands-on development with pedagogy. His background in education and long history of self-employed projects give him a pragmatic, user-focused approach to designing maintainable front-end systems.
16 years of coding experience
12 years of employment as a software developer
Computer Programming, Computer Programming at Linnaeus UniversitySecondary Education and Teaching, Secondary Education and Teaching at Halmstad University
Github Skills (17)
javascript10
lib10
testing10
component-development10
ref10
backbonejs10
refluxjs10
d3js10
backbone10
react10
animation9
front-end-development9
mixins9
underscore8
underscorejs8
Programming languages (4)
Github contributions (5)
Olical/react-faux-dom
Mar 2016 - Mar 2016
DOM like structure that renders to React (unmaintained, archived)
Role in this project:
Front-end Developer
Front-end DeveloperContributions:16 commits, 1 PR, 12 comments in 5 days
Contributions summary:David primarily contributed to the project by implementing and testing React components, specifically focusing on integrating a D3 chart within a React component using a mixin. Their commits involved setting up the component structure, handling state updates, and incorporating D3 for data visualization and animation. The user also focused on refactoring code to conform to standard JavaScript practices and improve the structure of the project.
domreactd3javascript
jashkenas/backbone
Aug 2012 - Jan 2013
Give your JS App some Backbone with Models, Views, Collections, and Events
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:14 commits in 5 months
Contributions summary:David primarily focused on enhancing the Backbone.js library's collection sorting capabilities. They implemented and refined a string-based comparator for sorting collections by model attributes, offering flexibility in ascending/descending order. Furthermore, the user refactored code for performance gains and improved documentation to accurately reflect the updated API. The changes included updates to both the core library code and associated test files.
js
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