EXCEEDS logo
Exceeds
Nicholas Levin

PROFILE

Nicholas Levin

Worked across multiple repositories including protocolbuffers/protobuf, google-ai-edge/LiteRT, and google/nearby to enhance iOS build stability, compatibility, and test reliability. Addressed serialization sizing issues in Objective-C by reverting complex varint logic in protobuf, improving maintainability and correctness. Upgraded minimum iOS version requirements and refactored Metal libraries in Mediapipe and related projects to support iOS 15 features and security updates. Improved Bazel build configurations for TensorFlow Lite, reducing CI flakiness and streamlining release processes. Leveraged skills in Bazel, Objective-C, and build system management to deliver robust cross-platform support, automated dependency updates, and maintainable code across machine learning and iOS ecosystems.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

10Total
Bugs
3
Commits
10
Features
6
Lines of code
176
Activity Months3

Work History

June 2026

7 Commits • 5 Features

Jun 1, 2026

June 2026 consolidated cross-repo iOS compatibility enhancements and platform readiness across six repositories, with a focused test reliability fix in protobuf and multiple automated iOS 15 minimum-version upgrades. Key outcomes include a robust test suite under iOS 15, cross-platform build/test readiness in Mediapipe, Nearby, J2CL, LiteRT, and LiteRT-LM, and a Metal library refactor that strengthens cross-platform support. These efforts reduce release risk, accelerate iteration cycles, and enable taking advantage of iOS 15 features and security updates.

May 2026

2 Commits • 1 Features

May 1, 2026

May 2026 performance summary: Delivered stability and compatibility improvements across Google AI and Nearby ecosystems. Key outcomes include a stabilized TensorFlow Lite iOS build in LiteRT through Bazel load statement refinements, reducing flaky iOS builds and accelerating release readiness; and a XCFramework import path update in Nearby that aligns with newer Apple framework structures, improving build compatibility with latest toolchains. These changes reduce CI failures, streamline integration, and demonstrate proficiency in Bazel-based iOS workflows and Apple ecosystem updates. Technologies demonstrated include Bazel, iOS/TensorFlow Lite builds, Apple XCFrameworks, automated code changes, and cross-repo collaboration for CI readiness.

November 2025

1 Commits

Nov 1, 2025

Consolidated stabilization work on protocolbuffers/protobuf by performing a targeted rollback of the GPBCodedOutputStream size calculation. Reverted the branchless varint size logic and reinstated straightforward conditional sizing to correct edge-case behavior, improving correctness and downstream compatibility. This rollback, tied to the automated revert of commit 0437d645a8a087c0f526118d136ab4c28566c89a (PiperOrigin-RevId: 830503499), enhances maintainability and reduces regression risk. No new features were released this month; the primary business value is serialization stability and predictable sizing across inputs, supporting reliable encoding and downstream parsing.

Activity

Loading activity data...

Quality Metrics

Correctness98.0%
Maintainability96.0%
Architecture96.0%
Performance94.0%
AI Usage26.0%

Skills & Technologies

Programming Languages

BazelC++Objective-CPython

Technical Skills

BazelBuild AutomationBuild ConfigurationBuild System ManagementC++ DevelopmentCocoaMachine LearningMetalObjective-CSoftware MaintenanceSoftware TestingTensorFlowTensorFlow Litebuild system configurationdependency management

Repositories Contributed To

6 repos

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

protocolbuffers/protobuf

Nov 2025 Jun 2026
2 Months active

Languages Used

Objective-C

Technical Skills

CocoaObjective-CiOS DevelopmentiOS developmentunit testing

google-ai-edge/LiteRT

May 2026 Jun 2026
2 Months active

Languages Used

BazelPython

Technical Skills

Build ConfigurationTensorFlow LiteiOS DevelopmentMachine LearningTensorFlow

google/nearby

May 2026 Jun 2026
2 Months active

Languages Used

Python

Technical Skills

build system configurationdependency managementSoftware TestingiOS Development

google-ai-edge/mediapipe

Jun 2026 Jun 2026
1 Month active

Languages Used

C++Python

Technical Skills

BazelBuild System ManagementC++ DevelopmentMetalfull stack developmentiOS Development

google/j2cl

Jun 2026 Jun 2026
1 Month active

Languages Used

Python

Technical Skills

Build AutomationiOS Development

google-ai-edge/LiteRT-LM

Jun 2026 Jun 2026
1 Month active

Languages Used

Python

Technical Skills

Software MaintenanceiOS Development