Tim Sebastian
Principal Software Developer at Atlassian
Sydney, New South Wales, Australia
Summary
🤩
Rockstar🎓
Top SchoolTim Sebastian is a Principal Software Developer based in Sydney with 14 years of experience building and modernizing web platforms and analytics-driven products. At Atlassian he progressed from Senior JavaScript Developer to principal, leading architectural improvements and shipping scalable front-end and back-end solutions. As a co-founder of Mouse3K and Peaks & Pies he designed tracking systems and conversion-optimization tooling, blending product thinking with hands-on engineering. He has contributed to high-profile open-source projects like webpack by refactoring core modules toward ES6 and reducing redundancy, demonstrating an ability to improve large, legacy codebases. Tim combines deep JavaScript expertise, analytics-first decision-making, and a pragmatic focus on clarity and maintainability.
13 years of coding experience
7 years of employment as a software developer
Bachelor of Science (B.Sc.), Business Information Systems, Majors: E-Commerce, 1.4, Bachelor of Science (B.Sc.), Business Information Systems, Majors: E-Commerce, 1.4 at Fachhochschule Würzburg-Schweinfurt
German, English, French
Github Skills (12)
javascript10
s610
refactoring10
bundle10
bundling10
webpacker10
webpack10
bundler9
jsmodules9
build-tools9
dependency-management9
code-optimization9
Programming languages (8)
Github contributions (5)
webpack/webpack
Dec 2016 - Sep 2017
A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the application on demand. Through "loaders", modules can be CommonJs, AMD, ES6 modules, CSS, Images, JSON, Coffeescript, LESS, ... and your custom stuff.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:330 commits, 149 PRs, 4 branches in 9 months
Contributions summary:Tim primarily worked on refactoring and modernizing the codebase of the webpack project. They refactored numerous dependency modules and dependencies related to the project's core functionality to be more inline with ES6 standards. The user also removed unused parameters and made other code improvements, with the goal of making the code clearer and less redundant.
amdloaderscode-splittingcustom-stuffcompiler
timse/srcset-loader
Oct 2016 - Feb 2018
Flexible srcset-loader for webpack
Contributions:49 commits, 16 PRs, 24 pushes in 1 year 4 months
webpack-pluginwebpack-loaderhtml-webpack-pluginwebpack2srcset
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