Mikel Alcón is a Staff Software Engineer and Tech Lead with 20+ years of experience building large-scale distributed systems, Java architectures, and developer tooling, currently leading Git ecosystem CI/CD systems at Google. He previously led source control systems and created the open-source Copybara project, demonstrating a blend of product-minded engineering and developer infrastructure expertise. His contributions to high-performance build tooling include memory and query optimizations in the widely-used Bazel build system, showing a strong focus on performance and resource efficiency. Mikel has deep hands-on experience designing global platforms and NoSQL/distributed data solutions from earlier roles as a Java & Data Grid Architect. He pairs technical leadership with team management, driving SDLC optimization and modern AI-driven development practices across large, complex codebases. Based in New York, he brings a pragmatic, systems-level approach to solving infrastructure challenges that impact thousands of developers.
a fast, scalable, multi-language and extensible build system
Role in this project:
Back-end Developer
Contributions:37 commits, 3 comments, 4 issues in 1 year 6 months
Contributions summary:Mikel contributed to the Bazel build system by implementing features related to attribute filtering and memory optimization. They modified code to allow filtering of attributes during queries, saving memory by replacing `LoadingCache` with `Interner` for label deserialization, and optimizing reverse dependency queries. The user also made various memory optimizations in Skylark and other related code. Further changes involved closing streams and general code cleanup, demonstrating a focus on performance and resource management.
Copybara: A tool for transforming and moving code between repositories.
Contributions:10 reviews, 979 commits, 53 PRs in 6 years 10 months
repositoriescopybara
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Mikel Alcón - Staff Software Engineer, Tech Lead at Google