Matias Grunberg
Software Developer at Design2Dev
Buenos Aires, Autonomous City of Buenos Aires, Argentina
Summary
🤩
Rockstar🎓
Top SchoolMatias Grunberg is a seasoned Software Developer from Buenos Aires with over a decade of hands-on experience building pragmatic web and mobile applications using Ruby on Rails, React/React Native and cloud platforms like Heroku and AWS. He has led multiple projects and teams as a technical/tech leader and senior developer, delivering production systems that span frontend, backend and database administration (MySQL/Postgres and SQL Server). An active open-source contributor, Matias has improved core Rails tooling and adapters—helping projects like rails/rails and cucumber-rails stay compatible with newer Rails versions and databases. Comfortable across the stack, he pairs practical engineering (Docker, Node, serverless) with a focus on test automation and performance tuning, including SQL optimizer hints and schema fixes. Collected over many long-term engagements, his work shows a pattern of stabilizing legacy codebases while introducing modern testing and deployment practices.
11 years of coding experience
10 years of employment as a software developer
Bachiller técnico con orientación en Informática, Computacion, Bachiller técnico con orientación en Informática, Computacion at ORTLicenciado en ciencia de la computacion, Computer Science, Licenciado en ciencia de la computacion, Computer Science at Universidad de Buenos Aires
English, Hebrew
Github Skills (29)
ruby-rails10
testing10
rspec10
databases10
rails10
capybara10
ruby10
sql-server10
activeadmin10
sql10
minitest10
activerecord10
unit-test10
database10
cucumber9
Programming languages (7)
Github contributions (5)
rails-sqlserver/activerecord-sqlserver-adapter
Mar 2021 - Jan 2022
SQL Server Adapter For Rails
Role in this project:
Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:13 reviews, 59 commits, 46 PRs in 9 months
Contributions summary:Matias primarily contributed to the SQL Server adapter for Rails, focusing on enhancing database interactions and improving the adapter's functionality. Their work included implementing optimizer hints using the OPTION clause, which likely optimized SQL queries for better performance. The user also addressed Rails 6.1 fixes, and incorporated changes for better schema dumping and column collation management. Several changes also revolved around fixing tests and ensuring compatibility with newer Rails versions.
sql-servertinytdsrailssqlruby
activeadmin/activeadmin
Jan 2022 - Mar 2022
The administration framework for Ruby on Rails applications.
Role in this project:Back-end Developer
Back-end DeveloperContributions:3 releases, 45 reviews, 5 commits in 1 month
Contributions summary:Matias primarily focused on improving the Active Admin framework for Ruby on Rails applications. They addressed critical issues, including Rails 7.0 and 7.1 compatibility by adapting dependencies and code. Furthermore, they implemented features like CSV injection protection and improved Ransack integration with authorization. Their work also involved refactoring existing code and optimizing the build process for better functionality and performance.
ruby-on-railsrails-applicationsrailsadministrationarbre
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