Zac Xeper
Software Engineer at Elastic NV
Minneapolis, Minnesota, United States
Summary
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RockstarZac Xeper is a seasoned software engineer with 13 years of experience building user-facing and server-side features for large open-source projects. Based in Minneapolis, he has contributed meaningful UI and backend integrations to high-profile repos like Elastic's Kibana and Firefox DevTools, improving APM metrics displays, breakpoint behavior, and editor interactions. Zac spans the full stack—shipping frontend component work, localization and type definitions, while also modifying server-side logic and tests to ensure robust integrations. He brings a pragmatic focus on developer experience and observability, translating complex telemetry into usable interfaces. Known for candid personality and team-mindedness, he signals that psychological safety and diversity matter to shipping quality code.
13 years of coding experience
Github Skills (26)
debugging10
javascript10
observability10
typescript10
user-interface10
ui-design10
kibana10
uid10
front-end-development10
typescript-types10
typescripts10
react10
amazon-elasticsearch9
css9
aws-elasticsearch9
Programming languages (10)
Github contributions (5)
elastic/kibana
Jun 2019 - Jan 2023
Your window into all of your data
Role in this project:
Back-end Developer & UI Developer
Back-end Developer & UI DeveloperContributions:562 reviews, 400 commits, 1025 PRs in 3 years 8 months
Contributions summary:Zac primarily worked on implementing and improving the user interface (UI) for metrics features within the Kibana platform, including modifying the display of metrics and filters for application performance monitoring (APM) data. The commits also involved backend integration with the Elastic Stack, by altering server-side code to filter out and transform data from APM nodes. Furthermore, the user was responsible for modifying tests for the new code implemented.
elasticdashboardskibanaobservabilitywindow
firefox-devtools/debugger
Oct 2016 - Nov 2017
The faster and smarter Debugger for Firefox DevTools 🔥🦊🛠
Role in this project:Front-end Developer
Front-end DeveloperContributions:6 commits, 10 PRs, 53 comments in 1 year 1 month
Contributions summary:Zac primarily contributed to the front-end aspects of the Firefox debugger, focusing on the user interface and component interactions. They addressed issues related to breakpoint functionality, editor search, and the call stack display. Additionally, the user implemented flow type definitions and localization support within the front-end codebase. These changes involved modifying existing components, fixing visual aspects, and improving the overall user experience.
devtoolsfirefoxreduxdebuggerjavascript
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