Guillaume Massé
Software Developer at Narrative I/O
Montreal, Quebec, Canada
Summary
🤩
Rockstar🎓
Top SchoolGuillaume Massé is a software developer with 13 years of experience building backend systems and developer tooling, currently based in Montreal and working on data collaboration at Narrative I/O. He has deep Scala expertise demonstrated by long-running contributions to prominent open-source projects like Scalafix, Scala Native and Scalameta, where he focused on build systems, refactoring/linting internals, and git-integrations that surface blame and diff-aware diagnostics. His work spans production services—ETL, streaming, and message backends—and developer-facing tools, showing a rare blend of systems engineering and tooling craft. At Automat.ai he helped ship personalization and product ingestion pipelines used in commercial demos and a patent-backed personalization engine. He’s comfortable across cloud-native deployments (Kubernetes, Pulumi) and JVM/native interop, and has experience improving reproducible builds on NixOS. Colleagues would describe him as a pragmatic engineer who moves between low-level build/config problems and high-level product-facing systems with equal fluency.
13 years of coding experience
7 years of employment as a software developer
Diplôme d'études collégiales (DEC), Natural Sciences, Diplôme d'études collégiales (DEC), Natural Sciences at Cégep Gérald-GodinBachelor of Engineering - BE, Computer Software Engineering, GPA 2.84/4.00, Bachelor of Engineering - BE, Computer Software Engineering, GPA 2.84/4.00 at Polytechnique MontréalStudent Exchange Program, Computer Software Engineering, Student Exchange Program, Computer Software Engineering at Universidade Estadual de CampinasHigh School Diploma, Natural Sciences, High School Diploma, Natural Sciences at Collège Beaubois
French, English, Portuguese, Persian, Spanish, German, Chinese
Stackoverflow
8,044reputation
1.0mreached
80answers
38questions
scala
top-5%
sbt
top-1%
coffeescript
top-5%
angular-ui-router
top-5%
Github Skills (34)
dependency-management10
git10
build-configuration10
sbt10
build-system10
refactor10
scala10
project-configuration10
refactoring10
coffeescript9
angular-ui-router9
lint9
linter9
semantic-analysis9
linting9
Programming languages (23)
Github contributions (5)
scalacenter/scalafix
Jan 2017 - Sep 2018
Refactoring and linting tool for Scala
Role in this project:
Backend Developer
Backend DeveloperContributions:4 releases, 130 commits, 82 PRs in 1 year 8 months
Contributions summary:Guillaume primarily contributed to the `scalafix` repository by modifying and adding code related to the codebase's internal workings. They were involved in fixing code related to `Patch` and related to linter and refactoring tool for Scala, enhancing the tool's functionality. The user also worked on enhancing the integration of scalafix with git, specifically by adding `--diff` capabilities to filter lint messages based on git diffs, and adding blame information to diagnostics.
linterlintingmetaprogrammingrefactoringscala
scala-native/scala-native
Sep 2016 - Nov 2017
Your favorite language gets closer to bare metal.
Role in this project:Backend Developer
Backend DeveloperContributions:27 commits, 48 PRs, 204 comments in 1 year 3 months
Contributions summary:Guillaume primarily contributed to the Scala Native project by modifying build configurations and fixing issues related to the build process. They addressed problems with formatting, NixOS setup, and external dependencies. Furthermore, the user implemented changes related to sbt configurations and added support for Java's regular expressions using the RE2 library.
scala-nativebare-metalmetalnativecompiler
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