Graciliano Passos is a seasoned technology executive and founder with 12 years of experience leading AI-driven product and engineering organizations from Santa Catarina, Brazil. As CTO and Board Member (now Chairman) at UpPoints he has shaped a real-time AI platform for industry and retail that emphasizes high-performance data processing, distributed systems and practical machine learning. His background spans cryptography, Big Data analytics and low-level performance work—evident from contributions to the Dart SDK where he optimized analyzer packages and clarified platform behaviors. Earlier roles include long-term CTO leadership at Megajogos and hands-on stewardship of open-source projects like XML::Smart and TinyPerl, demonstrating a mix of product strategy and deep technical craftsmanship. Colleagues describe him as an operator who moves seamlessly between boardroom strategy and code-level optimization, with a track record of turning complex data problems into deployable, high-throughput solutions.
12 years of coding experience
9 years of employment as a software developer
Information Technology, Information Technology at Universidade Federal de Santa Catarina
The Dart SDK, including the VM, JS and Wasm compilers, analysis, core libraries, and more.
Role in this project:
Backend Developer
Contributions:3 commits, 19 PRs, 169 comments in 2 years 10 months
Contributions summary:Graciliano primarily contributed to the Dart SDK, focusing on improving documentation and optimizing existing code. They addressed issues related to data type endianness and clarified the behavior of platform-specific properties like `executable` and `script`. Additionally, the user made performance enhancements by optimizing code in the `analyzer` package and the `_fe_analyzer_shared` package.
Let's Encrypt support for the shelf package (free and automatic HTTPS certificate support).
Contributions:16 releases, 2 reviews, 5 commits in 1 year 2 months
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