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Stefan Jandl

PROFILE

Stefan Jandl

Reg developed and maintained the getsentry/sentry-unity repository, delivering robust cross-platform error tracking and distributed tracing for Unity applications. Over thirteen months, Reg engineered features such as native crash reporting, user feedback capture, and trace propagation across .NET, Android, and Xbox, while modernizing CI/CD pipelines for reliable builds. Using C#, C++, and Bash, Reg unified configuration management, optimized build automation, and improved developer onboarding through clear documentation and streamlined SDK integration. The work addressed platform-specific challenges, enhanced debugging with accurate symbol uploads, and ensured compatibility with evolving Unity versions, demonstrating deep technical understanding and a focus on maintainable, scalable solutions.

Overall Statistics

Feature vs Bugs

63%Features

Repository Contributions

184Total
Bugs
40
Commits
184
Features
67
Lines of code
33,512
Activity Months13

Work History

October 2025

5 Commits • 2 Features

Oct 1, 2025

October 2025 monthly performance summary for core tracking across getsentry/sentry-unity and getsentry/sentry-docs. The month focused on developer experience, build reliability, cross-platform debugging, and clear tracing guidance to accelerate issue diagnosis and delivery parity across platforms. Key features delivered: - Sentry Unity: Developer Onboarding and Build Pipeline Improvements — updated setup docs to clearly specify Unity and .NET prerequisites, streamlined downloads of native SDKs, clarified Windows build steps, and modernized the CI/CD workflow to reduce build complexity. Commits: 5ac9e44b7382b1e80c9ffcdc0d5c79c9ebd592cb; 455c8b19dc537adaa60da794bc5be6bb2146768b - Sentry Docs: Unity Tracing and Debugging Documentation — added guidance on custom trace propagation in Unity apps with code examples for distributed tracing (HttpClient and UnityWebRequest) and troubleshooting guidance for interpreting compiler-generated stack traces (e.g., <>n__0, <>c, <>c__DisplayClass). Commits: 6d53857616c15f49a19efde702ce1e7c52ddc76a; 27082d045b77526153c9352f02e0f0b3a339ea94 - Xbox Build Debug Symbols Upload Fix — corrected Xbox build upload path so debug symbols are correctly identified and uploaded from Assets/Plugins/Sentry, ensuring accurate debugging information for Xbox builds. Commit: 3cc63bfa3a87fb173b24d865cadd72fa8bddc8c5 Major bugs fixed: - Xbox build: Fixed the debug symbols upload path to ensure accurate debugging information for Xbox builds. Commit: 3cc63bfa3a87fb173b24d865cadd72fa8bddc8c5 Overall impact and accomplishments: - Significantly improved developer onboarding, build reliability, and cross-platform debugging readiness for Unity projects, enabling faster delivery cycles and fewer build-time disruptions. - Delivered clear Unity tracing and debugging guidance to accelerate root-cause analysis and reduce MTTR for distributed tracing issues. Technologies/skills demonstrated: - Unity and .NET prerequisites, Windows build workflows, CI/CD modernization - Xbox build pipelines and native SDK management - Distributed tracing concepts in Unity (trace propagation), HttpClient/UnityWebRequest integration, and debugging stack trace interpretation

September 2025

21 Commits • 9 Features

Sep 1, 2025

September 2025: Delivered major CI/CD improvements, platform modernization, and SDK maintenance across getsentry/sentry-unity and getsentry/sentry-docs. Key outcomes include more reliable builds, Unity 2021+ minimum support, expanded Input System handling, Xbox native crash reporting, and consolidated SDK configuration, translating to faster delivery, better telemetry, and reduced maintenance. Documentation updates for Unity performance metrics, ANR detection, and guidance on custom measurements were published to help users adopt best practices.

August 2025

22 Commits • 7 Features

Aug 1, 2025

August 2025 performance summary for multi-repo Unity, Docs, and .NET efforts. Focused on stabilizing the Unity build and CI/CD pipelines, accelerating iOS builds, expanding developer tooling and samples, and tightening Cocoa SDK version management and core initialization/debug capabilities. Contributions spanned getsentry/sentry-unity, getsentry/sentry-docs, and getsentry/sentry-dotnet, driving business value through more reliable builds, faster delivery, and improved developer experience across platforms.

July 2025

14 Commits • 6 Features

Jul 1, 2025

July 2025: Delivered a cohesive set of Unity-focused features, stability improvements, and developer-facing docs across the Sentry ecosystem. The work prioritized user feedback reliability, initialization stability, platform reach, and build/Docs quality, enabling faster onboarding, safer runtime experiences, and broader adoption.

June 2025

3 Commits • 1 Features

Jun 1, 2025

June 2025: Focused on stability and maintainability enhancements for getsentry/sentry-unity. Delivered targeted crash fixes, safer JNI handling, and template modernization to streamline issue triage and future contributions.

May 2025

16 Commits • 7 Features

May 1, 2025

May 2025: Delivered cross-repo improvements across .NET and Unity ecosystems to strengthen observability, build reliability, and developer experience. Key outcomes include enhanced transaction scope observation and trace propagation, flexible CLI usage with Organization Token detection (removing mandatory org slug), resilient iOS builds via conditional logging and error handling, and Unity build optimizations with version-aware code stripping. Additional cross-platform CI enhancements and a .NET SDK upgrade improved build stability and compatibility, while documentation updates supported Unity SDK adoption. These efforts reduce toil, lower customer-facing risk, and improve performance and diagnostics for complex deployments.

April 2025

26 Commits • 10 Features

Apr 1, 2025

April 2025 performance summary for the development team. Delivered cross-layer trace propagation and enhanced error tracing across .NET, Unity, Cocoa, and native layers; upgraded SDKs and deepened testing capabilities. Implemented cross-platform trace ID propagation to improve cross-layer error correlation, and refined Unity/mobile context for better analytics. Strengthened CI/CD stability and platform automation to reduce release risk and accelerate feedback. Demonstrated proficiency across C#, Unity, Java/NDK, iOS/macOS, and Android ecosystems, with a strong focus on business value through faster root-cause analysis and richer telemetry.

March 2025

7 Commits • 5 Features

Mar 1, 2025

Month: 2025-03 monthly summary focusing on business value and technical achievements across getsentry repositories. Key features delivered include Unity crash status reporting with GetLastRunState and CrashedLastRun enum and improved logging, ANR integration improvements for thread-safe updates, and build system cleanup removing an unused DownloadNDK target in Android build. In addition, cross-repo work includes enabling Hybrid SDK trace context propagation across the native layer with a dependency bump, and updating Unity native support documentation to clarify initialization modes and platform implications. These efforts collectively improve reliability, observability, and developer onboarding, reducing potential incidents and enabling better cross-layer debugging across Unity, Java, docs, and native tooling.

February 2025

18 Commits • 5 Features

Feb 1, 2025

February 2025 performance summary — Strengthened observability, platform parity, and CI reliability across getsentry studios. Delivered concrete features, fixes, and documentation updates across Unreal, Unity, Docs, Java, and Native SDKs, focusing on business value and developer experience. Key outcomes: - Strengthened end-to-end issue analysis by fixing debug symbol upload in Unreal and aligning with latest Sentry CLI (debug-files upload). - Centralized, clarified configuration guidance across .NET, Unity, iOS, and Android; removed deprecated enable-tracing option; updated initialization notes and hooks for screenshot and view hierarchy to improve user guidance and control over event reporting. - Enhanced Sentry Unity SDK with improved error capture and event processing, including BeforeCapture callbacks and EventProcessor-based attachments, plus cross-platform CLI error handling and updated initialization notes. - Introduced traceability controls and API surface in Java (enableTraceIdGeneration) to coordinate trace IDs across hybrid SDK layers. - Enabled cross-SDK trace propagation in Sentry Native with sentry_set_trace, accompanied by API, header, and unit-test updates for reliable cross-component correlation. - These efforts collectively reduce debugging time, improve cross-platform consistency, and provide clearer observability across the stack.

January 2025

27 Commits • 8 Features

Jan 1, 2025

January 2025 monthly summary: Highlights across getsentry repos with a focus on business value and technical achievements. Key CI/CD and platform improvements stabilized build pipelines for Unity/mobile, enabling faster feedback and more reliable releases. Repos contributed to getsentry/sentry-unity, getsentry/sentry-docs, getsentry/craft, getsentry/sentry-dotnet, and getsentry/sentry-native, delivering both new features and fixes that reduce CI failures, improve crash handling, and improve developer experience. Highlights include unified main/non-main CI runs for streamlined pipelines, ANR event mechanism for better crash/ANR handling, dynamic preview releases configuration in craft, and major CI stability fixes (setup-dotnet OS pinning, correct Java version). Unity was updated to 2022.3.55f1 to fix compatibility; additional fixes include Android device testing, iOS logging improvements, ProGuard updates, and documentation enhancements.

December 2024

4 Commits • 4 Features

Dec 1, 2024

December 2024: Delivered foundational Unity SDK initialization improvements and reliability enhancements across iOS and Android, strengthened CI stability for Android tests, and expanded developer documentation on macOS file system permissions. The changes enable earlier configuration, more robust native integrations, more reliable builds, and clearer known-limitations guidance, accelerating integration for customers and reducing support touchpoints.

November 2024

15 Commits • 1 Features

Nov 1, 2024

November 2024 performance highlights for getsentry/sentry-unity: Delivered a unified programmatic configuration workflow for Sentry CLI options via OptionConfiguration, consolidating runtime/build-time settings into a single model, with updates to sample config and editor UI, asset-path refactor, and changelog alignment. Stabilized CI and Unity packaging pipelines with reliable test reporting, macOS runner updates, and Unity version auto-detection for packaging. Strengthened native SDK initialization and error reporting robustness with safer shutdown when native support is disabled, suppressed and logged initialization exceptions, and improved logging/argument handling. Improved Unity sample build compatibility by removing legacy Xcode flags and auto-updating project settings. Enhanced Cocoa SDK version extraction with a broader regex for more robust version capture. Business impact includes faster feedback loops, reduced build failures, clearer configuration, and more resilient Unity integrations.

October 2024

6 Commits • 2 Features

Oct 1, 2024

October 2024 monthly summary for getsentry/sentry-unity: Delivered CI reliability improvements, cross-platform stability fixes, and Windows native crash reporting. These changes reduce flaky tests, prevent initialization crashes on restricted platforms, and enable native crash telemetry for Windows builds, accelerating debugging and improving build reliability across Unity deployments.

Activity

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Quality Metrics

Correctness91.8%
Maintainability90.8%
Architecture87.0%
Performance85.2%
AI Usage20.8%

Skills & Technologies

Programming Languages

BashBatchCC#C++GitJavaKotlinMarkdownObjective-C

Technical Skills

AI IntegrationAPI DesignAPI IntegrationAndroidAndroid DevelopmentAndroid NDKAndroid TestingApplication Context ManagementAsset ManagementAsynchronous ProgrammingAutomationBackend DevelopmentBug FixingBuild AutomationBuild Configuration

Repositories Contributed To

9 repos

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

getsentry/sentry-unity

Oct 2024 Oct 2025
13 Months active

Languages Used

C#PowerShellXMLYAMLMarkdownShellUnityScriptC

Technical Skills

Android DevelopmentBuild AutomationBuild SystemsCI/CDError HandlingGitHub Actions

getsentry/sentry-docs

Dec 2024 Oct 2025
10 Months active

Languages Used

MarkdownC#

Technical Skills

DocumentationTechnical WritingUnity DevelopmentSDK ConfigurationSDK IntegrationDistributed Tracing

getsentry/sentry-dotnet

Jan 2025 Aug 2025
5 Months active

Languages Used

C#PowerShellXML

Technical Skills

Configuration ManagementPrivacy ControlsSDK DevelopmentAPI DesignBuild AutomationBuild Configuration

getsentry/craft

Jan 2025 Apr 2025
2 Months active

Languages Used

TypeScript

Technical Skills

Configuration ManagementRelease EngineeringRelease ManagementVersion ControlTestingUnit Testing

getsentry/sentry-native

Jan 2025 Mar 2025
3 Months active

Languages Used

MarkdownCJavaGit

Technical Skills

DocumentationAPI DesignAndroid NDKC/C++Native DevelopmentUnit Testing

getsentry/sentry-java

Feb 2025 Mar 2025
2 Months active

Languages Used

JavaKotlinMarkdown

Technical Skills

Android DevelopmentMobile DevelopmentSDK DevelopmentTracingCross-Platform DevelopmentDistributed Tracing

getsentry/sentry-unreal

Feb 2025 Feb 2025
1 Month active

Languages Used

BatchShell

Technical Skills

CI/CDScripting

getsentry/sentry-cocoa

Apr 2025 Apr 2025
1 Month active

Languages Used

Objective-CSwift

Technical Skills

Distributed TracingSDK DevelopmentUnit TestingiOS Development

sentry-demos/empower

May 2025 May 2025
1 Month active

Languages Used

PythonYAML

Technical Skills

CI/CDScripting

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