James Portelli
Senior Frontend Engineer at Checkout.com
England, United Kingdom
Summary
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Rockstar🎓
Top SchoolJames Portelli is a Senior Frontend Engineer based in England with over a decade of experience building user-focused web applications and component libraries. Currently at Checkout.com, he brings deep expertise in React and front-end architecture, having led greenfield front-end projects and established internal component libraries at FreeWheel/Strata. His open-source contributions to adazzle/react-data-grid show a practical focus on UX polishing and integration—adding editable column behaviors, Redux wrappers, and improved grouping and cell actions. James combines hands-on implementation with mentoring and tooling decisions, and has a track record of turning legacy integrations into modern, testable front-end systems. Notably, his background spans both consultancy and enterprise product delivery, giving him a pragmatic blend of delivery discipline and architectural thinking.
10 years of coding experience
6 years of employment as a software developer
Diploma, Creative Computing, Diploma, Creative Computing at University of London International ProgrammesPrimary and Secondary Education, O' Level Examinations, Primary and Secondary Education, O' Level Examinations at San Andrea School
English, Maltese
Stackoverflow
43reputation
5kreached
0answers
2questions
Github Skills (10)
uid10
javascript10
front-end-development10
ui-design10
react10
css9
redux7
facebook-graph-api6
facebook-marketing-api6
facebook6
Programming languages (2)
Github contributions (5)
Comcast/react-data-grid
Apr 2016 - Jan 2020
Feature-rich and customizable data grid React component
Role in this project:
Front-end Developer
Front-end DeveloperContributions:63 commits, 36 PRs, 109 pushes in 3 years 10 months
Contributions summary:James primarily focused on enhancing the user interface and functionality of the React-based data grid component. Their contributions involved fixing bugs related to viewport height, filter toggling, and checkbox cell styling. They also added features like the ability for editable columns to accept a function and implemented a Redux container editor wrapper, improving the grid's flexibility and integration capabilities. Furthermore, the user enhanced the cell action and row grouping functionalities to improve user experience and styling.
datagridreact-componentreact-data-gridreact
JamesPortelli/notify-rc
Sep 2018 - Nov 2018
UI Notification System
Contributions:2 PRs, 7 pushes, 3 branches in 2 months
notificationnotification-system
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