Andrew Alexander
Tech Lead, Senior Staff Software Engineer at Block
Kitchener, Ontario, Canada
Summary
🤩
Rockstar🎓
Top SchoolAndrew Alexander is a seasoned software engineer and tech lead with a decade of experience building developer platforms and large-scale infrastructure, currently leading a 15-person team at Block responsible for application service containers used by 3,000+ engineers. A University of Waterloo CS graduate, he rose through engineering ranks at Cash App to Senior Staff, shaping frameworks and developer experience across multiple languages (Java, Kotlin, Go, Ruby, Python, Node). He combines hands-on systems work—illustrated by core contributions to the cashapp/zipline project, adding an AMD module loader and modular JS build support—with strategic architecture for platform-wide developer productivity. Based in Kitchener, Ontario, he consults on contract work and brings a founder’s mindset from earlier startup experience, favoring pragmatic, cross-language solutions that scale.
10 years of coding experience
8 years of employment as a software developer
Honours Bachelor of Computer Science Business Option, Honours Bachelor of Computer Science Business Option at University of Waterloo
Stackoverflow
1reputation
0reached
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Github Skills (5)
kotlin10
javascript10
build-automation9
gradlew9
gradle9
Programming languages (17)
Github contributions (5)
cashapp/zipline
Sep 2021 - Jan 2023
Run Kotlin/JS libraries in Kotlin/JVM and Kotlin/Native programs
Role in this project:
Back-end Developer
Back-end DeveloperContributions:138 reviews, 149 commits, 85 PRs in 1 year 4 months
Contributions summary:Andrew primarily contributed to the core functionality of the Zipline project, specifically focusing on implementing an AMD module loader for Kotlin/JS. Their work involved modifying and extending the JavaScript build process to support modular JavaScript builds, including moving JS module code between test and production environments. The changes included the addition of a new API, modular JS builds, and a new `defineJs` function.
kotlin-jskotlinjvmprogramsjava
adrwxyz/adrw.xyz
Mar 2020 - Mar 2020
memento mori
Contributions:4 commits, 66 PRs, 1599 pushes in 1 day
memento
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