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Dan Federman

PROFILE

Dan Federman

During this period, Daniel Federschmidt focused on reliability and build engineering across multiple repositories. In customerio/customerio-ios, he addressed main-thread safety for timer invalidation in Swift, preventing crashes by ensuring timer operations executed on the correct thread. For getsentry/sentry-cocoa, Daniel improved error handling in the HTTP transport layer, discarding faulty envelopes and reducing cache overflow by handling 4xx and 5xx responses appropriately. He also delivered Bazel-native build targets and automated release publishing for SafeDI in bazelbuild/bazel-central-registry, enhancing CI validation and integration with external dependencies. His work demonstrated depth in concurrency, error handling, and build systems using Swift and Bazel.

Overall Statistics

Feature vs Bugs

33%Features

Repository Contributions

3Total
Bugs
2
Commits
3
Features
1
Lines of code
463
Activity Months3

Work History

May 2026

1 Commits • 1 Features

May 1, 2026

May 2026: Delivered SafeDI 2.0.0-rc-3 in bazelbuild/bazel-central-registry, introducing Bazel-native build targets and presubmit verification, and released 2.0.0-rc-3 with automated publishing. Focused on feature delivery and release engineering to improve build reliability, compatibility with external dependencies, and CI validation. No major bugs fixed this month; emphasis was on robust delivery and packaging.

December 2025

1 Commits

Dec 1, 2025

December 2025 monthly summary for getsentry/sentry-cocoa: Delivered a key reliability improvement in the HTTP Transport layer by implementing robust error handling and retry control. Specifically, 4xx/5xx responses now cause envelopes to be discarded and client send_error reports to be recorded, preventing unnecessary retries and offline cache overflow. The change addresses edge cases where faulty envelopes could be retried indefinitely, exhausting the offline cache.

January 2025

1 Commits

Jan 1, 2025

January 2025 monthly summary for customerio-ios focusing on stability and reliability of timer-related behavior. The month delivered a critical main-thread safety fix for the Gist timer, preventing crashes and inconsistent behavior by ensuring timer invalidation and related operations run on the main thread using a wrapper around invalidateTimer. This work strengthens core timer reliability across the iOS client.

Activity

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Quality Metrics

Correctness93.4%
Maintainability86.6%
Architecture86.6%
Performance80.0%
AI Usage33.4%

Skills & Technologies

Programming Languages

Objective-CPythonSwift

Technical Skills

BazelBuild SystemsConcurrencyError HandlingNetworkingSwiftUnit TestingiOS Development

Repositories Contributed To

3 repos

Overview of all repositories you've contributed to across your timeline

customerio/customerio-ios

Jan 2025 Jan 2025
1 Month active

Languages Used

Swift

Technical Skills

ConcurrencyiOS Development

getsentry/sentry-cocoa

Dec 2025 Dec 2025
1 Month active

Languages Used

Objective-CSwift

Technical Skills

Error HandlingNetworkingUnit TestingiOS Development

bazelbuild/bazel-central-registry

May 2026 May 2026
1 Month active

Languages Used

Python

Technical Skills

BazelBuild SystemsSwift