Ólafur Geirsson
Staff Engineer at Databricks
Oslo, Norway
Summary
🤩
Rockstar🎓
Top SchoolÓlafur Geirsson is a Staff Engineer with 13 years of experience building developer tooling and compiler-adjacent infrastructure, currently based in Oslo. He is the original author of several core Scala ecosystem tools (including scalafmt) and has deep, practical experience across projects like Bloop, Scalafix, Coursier and Metals—work that spans build servers, refactoring/linting, artifact fetching and language-server tooling. At companies from Scala Center to Twitter and Sourcegraph he’s combined backend systems engineering, test automation, and UI improvements, and recently led efforts around AI-assisted code tooling at Sourcegraph. His contributions show a blend of compiler-level insight and pragmatic build-tool maintenance—often fixing subtle cross-platform build, dependency and release issues that break developer workflows. He holds an MSc in Computer Science from EPFL and an atypical mix of full-stack open-source craftsmanship and production experience shipping large-scale developer products.
13 years of coding experience
9 years of employment as a software developer
Bachelor of Science (BSc) Discrete Mathematics & Computer Science, Bachelor of Science (BSc) Discrete Mathematics & Computer Science at Reykjavik UniversityMaster of Science (MSc) Computer Science, Master of Science (MSc) Computer Science at EPFL
Icelandic, English, Norwegian, Swedish
Github Skills (42)
dependency-management10
ivy10
scala-native10
command-line-interface10
typescript10
sbt10
build-system10
ui-design10
refactor10
scala10
uid10
fuzzy-finder10
front-end-development10
build-automation10
typescript-types10
Programming languages (24)
Github contributions (5)
scalacenter/scalafix
Sep 2016 - Dec 2020
Refactoring and linting tool for Scala
Role in this project:
Back-end Developer & Code Maintainer
Back-end Developer & Code MaintainerContributions:38 releases, 12 reviews, 1312 commits in 4 years 3 months
Contributions summary:Ólafur's commits primarily focused on enhancing the refactoring and linting capabilities of the ScalaFix tool. They introduced and then removed a rule to improve refactoring logic. Furthermore, they worked on upgrading the project's dependencies, fixing build issues, and addressing critical errors and inconsistencies that may arise from inconsistent versions. The user also implemented a significant overhaul of the code responsible for the removal of unused imports and improved the output for error reporting.
linterlintingmetaprogrammingrefactoringscala
scalameta/metals
Nov 2017 - Mar 2022
Scala language server with rich IDE features 🚀
Role in this project:Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:8 releases, 22 reviews, 1286 commits in 4 years 4 months
Contributions summary:Ólafur's primary contribution was to implement core functionalities of the Metals project by enhancing the capabilities of its testing environment. The user implemented the `test-release.sh` script to check that artifacts had synced to Maven Central. The user added test cases using Scala and created fixtures in several tests, with an emphasis on test coverage. The contributions are focused on enhancing the reliability and functionality of Metals.
atom-pluginscalametavscodeide-featuresscala
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