Sean Micklethwaite is a polyglot software engineer with 13 years of experience, blending front-end expertise in HTML5 and Node.js with a strong background in financial systems development at firms like Citi and Brevan Howard. Based in London, he combines production-grade engineering from the trading floor with open-source contributions—most notably performance and usability improvements to the dc.js sunburst chart used with crossfilter and d3.js. His career spans embedded systems work and large-scale trading operations, giving him a rare mix of low-level technical rigor and user-facing UI sensibility. Currently working as a driving instructor while staying active in software, he demonstrates adaptability and a practical, hands-on approach to solving performance and maintainability challenges.
13 years of coding experience
7 years of employment as a software developer
MComp, Computer Science, MComp, Computer Science at University of Oxford
A Level, Mathematics, Further Mathematics, Computing, Physics, A Level, Mathematics, Further Mathematics, Computing, Physics at Barnsley College
Multi-Dimensional charting built to work natively with crossfilter rendered with d3.js
Role in this project:
Front-end Developer
Contributions:6 commits, 1 PR, 5 comments in 14 days
Contributions summary:Sean primarily focused on improving and fixing the sunburst chart within the dc.js library. Their contributions included performance improvements related to filtering within the sunburst chart, as well as fixing unit tests for the same component. Furthermore, the user added class attributes to sunburst chart slices to indicate the level, and updated JSDoc documentation to improve the library's usability. These changes directly impact the functionality, performance, and maintainability of the sunburst chart component.
Contributions:72 commits, 3 pushes, 3 issues in 4 years 5 months
javascriptmilksugar
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