Chanoch Goldfeder is a seasoned software engineer with 12 years of experience building reliable, user-focused systems across Google, Waze, and Meta, most recently working on Maps-related ETA and route quality. He combines hands-on backend engineering and tech leadership—having led Waze Navigation, Ads serving, and Google Registry—with a PhD-level academic grounding in computer science from Columbia. Pragmatic about code quality, he has contributed meaningful test and bug fixes to notable open-source projects such as fastutil and Google’s Nomulus, improving iterator correctness and test coverage. Colocated in Tel Aviv, he brings deep expertise in refactoring large codebases, performance-minded design, and shipping production-grade services at scale. Beyond leadership, he retains an engineer’s curiosity for low-level correctness and developer ergonomics, often fixing subtle iterator and API misuse issues that evade automated tooling.
11 years of coding experience
16 years of employment as a software developer
PhD, Computer Science, PhD, Computer Science at Columbia University in the City of New York
MS, Computer Science, MS, Computer Science at Columbia Engineering
BA, Computer Science & Mathematics, BA, Computer Science & Mathematics at Yeshiva University
Top-level domain name registry service on Google Cloud Platform
Role in this project:
Back-end Developer
Contributions:178 commits, 1 PR, 20 comments in 1 year 2 months
Contributions summary:Chanoch made multiple commits related to refactoring the codebase, specifically focusing on cleaning up code, moving code to more appropriate places, and converting from the deprecated `getHostText()` method to the new `getHost()` method. They also added new unit tests to improve test coverage, in addition to modifying the tests to load resources efficiently. Overall, the user was focused on improving the performance and readability of the code.
fastutil extends the Java™ Collections Framework by providing type-specific maps, sets, lists and queues.
Role in this project:
QA Engineer / Test Automation Engineer
Contributions:5 commits, 3 PRs, 7 comments in 1 day
Contributions summary:Chanoch primarily focused on improving the testing coverage and quality of the `fastutil` library. Their contributions involved fixing bugs in the iterator implementations, specifically in `ImmutableSubList`. They added comprehensive tests for iterators, including iteration, skipping, and `forEachRemaining` methods, across both regular lists and sublists. These additions are a clear effort to ensure the correct behavior and robustness of the list iterators.
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