Alto Rubys contributed to the Shopify/grpc repository by focusing on build system optimization and CI/CD reliability for the Ruby extension. In May 2025, Alto introduced a new build target, remove_unused_artifacts, which prunes unnecessary artifacts to reduce gem size and improve distribution efficiency. This involved updating Makefile generation logic in extconf.rb, demonstrating proficiency in Ruby and build tooling. Earlier, in December 2024, Alto addressed CI instability by increasing the Ruby/macOS test timeout, reducing flaky builds and accelerating feedback cycles. Throughout the period, Alto applied skills in Ruby, Python, and CI/CD to deliver targeted, maintainable improvements with clear business value.