Stefano Galarraga
Team Leader Manager - Chrome Identity & Context at Google
London, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolStefano Galarraga is a seasoned software leader with nearly three decades of hands-on engineering and team-building experience, currently leading Chrome Identity & Context at Google. He specializes in distributed, event-driven and reactive systems, with deep practical knowledge from SIM-card embedded code to large-scale big data and on-device ML acceleration. Stefano has repeatedly scaled engineering organizations and product lifecycles—growing teams, defining CI pipelines, and steering high-pressure delivery for companies from startups to enterprises like Barclays, Vodafone and Worldpay. An active open-source contributor, he has contributed to prominent projects such as Akka and Scalding and co-authored chapters in a Scalding book, reflecting his focus on correctness and testability. Notably, his work spans both low-level performance engineering and modern LLM-based system design, bridging hardware acceleration and cloud-scale pipelines. Based in London, he remains an enthusiastic coder who pairs pragmatic leadership with curiosity for emerging technologies.
12 years of coding experience
20 years of employment as a software developer
MEng Software Engineer, MEng Software Engineer at Politecnico di Torino
Italian, English, Portuguese, French
Github Skills (18)
unit-testing10
behave10
testing10
distributed-systems10
akka10
scala10
bdd10
behavior-driven-development10
actor-model10
concurrency10
remote-actors9
cascading9
data-pipelines9
data-pipeline9
actor9
Programming languages (8)
Github contributions (5)
twitter/scalding
Jan 2014 - Jul 2014
A Scala API for Cascading
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:9 commits in 5 months
Contributions summary:Stefano primarily focused on developing a BDD (Behavior-Driven Development) DSL for testing the Scalding library's functionality. Their contributions involve implementing tests for various scenarios, including those using multiple data sources and different APIs (e.g., the Typed API). The code changes include test class creation and modification and demonstrate a focus on ensuring the library's correctness and usability through testing. The user also fixed an import error causing test failures.
apiscalafs2cascadingscala-native
akka/akka
Dec 2015 - Jan 2016
A platform to build and run apps that are elastic, agile, and resilient. SDK, libraries, and hosted environments.
Role in this project:Back-end Developer
Back-end DeveloperContributions:14 commits, 1 PR, 12 comments in 27 days
Contributions summary:Stefano primarily contributed to the `akka/akka` repository by developing and refactoring features related to the `akka-contrib` module. Their work focused on implementing a Circuit Breaker Actor, including the design and implementation of state transitions, handling failure scenarios, and providing mechanisms for sending messages through the proxy. Further commits included improvements to the documentation and refactoring to improve code readability and maintainability. The user also focused on adding Java-friendly methods.
resilientactor-modelreactiveconcurrentdistributed-actors
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