Mariell Hoversholm
Staff Software Engineer at Grafana Labs
Uppsala, Sweden
Summary
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RockstarMariell Hoversholm is a Staff Software Engineer with 10 years of experience building high-throughput backend systems and developer tools, currently at Grafana Labs after leading backend efforts at Spotify serving hundreds of millions of users. She specializes in performance optimization, scalable Java services and build/dependency tooling, having saved over $1M/year at Spotify and modernized build pipelines in open-source projects like PlotSquared. Mariell combines production-grade reliability—handling >100M RPS and mission-critical transaction pipelines—with deep hands-on work in game server internals, contributing entity and teleportation improvements to the popular Purpur Minecraft server. Based in Uppsala, Sweden, she brings a pragmatic engineering approach that balances developer ergonomics with systems-level performance, and has a playful side evident in open-source work described as “code for cool things. Like birds. And graphs.”
9 years of coding experience
9 years of employment as a software developer
Norwegian, Norwegian, English, German, Swedish
Stackoverflow
80reputation
2kreached
2answers
6questions
Github Skills (25)
dependency-management10
event-handling10
bukkit10
entities10
java10
plugin10
javas10
mc-server10
build-automation10
gradlew10
server10
entity10
gradle10
apidoc9
spigot9
Programming languages (22)
Github contributions (5)
IntellectualSites/PlotSquared
Oct 2020 - Jun 2021
PlotSquared - Reinventing the plotworld
Role in this project:
Backend Developer
Backend DeveloperContributions:12 commits, 4 PRs, 1 comment in 7 months
Contributions summary:Mariell primarily contributed to build and configuration files, including Gradle scripts, related to the Java-based Minecraft plugin. Their commits demonstrate the addition of Maven publishing, relocation of dependencies, and the correction of build configurations. They also addressed code review issues and updated the project to Gradle 6.7, indicating a focus on build management and dependency resolution within the project.
gradlespigotplotspapermcsponge-plugin
PurpurMC/Purpur
Jan 2021 - Feb 2021
Purpur is a drop-in replacement for Paper servers designed for configurability, and new fun and exciting gameplay features.
Role in this project:Back-end Developer
Back-end DeveloperContributions:4 reviews, 5 commits, 5 PRs in 1 month
Contributions summary:Mariell contributed significant changes to the Purpur Minecraft server project, primarily focused on enhancing entity handling and teleportation mechanics. Their work involved adding new events related to entity teleportation and structure generation, as well as modifying existing code to incorporate these events and handle edge cases, such as teleport restrictions for armor stands and gateway interactions. The commits indicate modifications to core server files, including those responsible for block interactions, portal logic, and armor stand behavior, demonstrating a deep understanding of the server's internals. These changes indicate improvements to gameplay mechanics and bug fixes related to player interaction with the game environment.
minecraftdrop-innmspurpurbukkit
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