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Wooyoung Jang

PROFILE

Wooyoung Jang

Worked across the DUNE software stack to deliver coordinated release engineering, dependency management, and feature development spanning repositories such as duneana, dunecore, dunesim, and duneopdet. Focused on aligning CMake-based build systems, synchronizing versioning, and upgrading dependencies to support reproducible builds and streamlined downstream integration. Developed and enhanced modules for data analysis, simulation, and noise modeling, including ROI analysis and optical detector processing. Addressed build stability and compiler compatibility, modernized CI regression tests, and improved release readiness through disciplined version control. Leveraged C++, Python, and CMake to ensure maintainable, scalable codebases supporting scientific computing and collaborative software development.

Overall Statistics

Feature vs Bugs

94%Features

Repository Contributions

224Total
Bugs
5
Commits
224
Features
84
Lines of code
780,415
Activity Months11

Your Network

67 people

Same Organization

@uta.edu
3

Shared Repositories

64

Work History

April 2026

30 Commits • 11 Features

Apr 1, 2026

April 2026 monthly summary focusing on key business value and technical accomplishments across the DUNE codebase. Key features delivered: - ROI Analysis Module for DUNE (DUNE/duneana): Enables ROI-focused tracking, data handling, and output generation. (Commit: 86b7c9b6044d785ede47a67686d36d4a1f4b703d – Merge branch 'release/v10_20_06d00') - DUNE: Versioning and Dependency Upgrades: Upgraded project version and dependencies to ensure compatibility and access to latest features across the codebase. Representative commits per repo include: - DUNE/duneana: 7fa5760438c3ccfa80cfe7d7a32dc103e460353e; 1d0d5b19d357c090602cb2d413f9ba56ef932e73; 4e526a7318df1e3fda3de2a20a572fe924422c7f; 42ce903a07d45fc81110ff777d11a273a2aa453e - DUNE/dunesim: a73029157afdb4056898804bb5998aa83649d448; a0034d62f64a659c92e2d02f4b1717ee1825bd8f; 24fd30d1a4bc24b22c24a0bc88a7ead15b0c1a43 - DUNE/duneopdet: 5f3829c3a51e6cee9026dae0eeb76600dd7cf5d7; 641737dbf41250b1050570ddd345a73396ac07e6; 18779965f3009488dd2925dfc6680b8fb7d2f53b; 1e840cd1d223171c107d83d2d2aa48b5e3c10027 - DUNE/duneprototypes: 223032b596a05bf02aea2ba41609e64f183c68ac; e9aac6b4ef1a539103f6b6dd5d713ba68359244a; 513a4155c48d700d3627bf8714c34a5dbb5be0d3 - DUNE/dunesw: 3240e1395385412db3b5de370a043445b5b481b6; 3b21a99a5b9e86621dc6e71a22823d741232edfd; cd95ed631cb4534bdb44f767583d88e0bf00a5a1; 33a6b0dd813bdaf616ab5621c75b63ab67d7d04c; cb79102e4152e9cd2b73604b65fa88ccc97009a8 - DUNE/dunereco: 917d4ae99960135c2f86c5f9988cdf2b63c99e2d; d4fe33c2f5c453b57f96aea53d331bf5791ec6d5; 4c032f459ee45452f887291fc61915be83fedc6b - DUNE: Build and Noise Modeling Enhancements; New LAr TPC Simulation Modules (DUNE/dunesim): Comprehensive update to build configuration, dependencies, improved noise modeling services, refined detector response architecture, and release updates including new noise models and LAr TPC simulation modules. (Commits: 7215fd62ed8660a79d15f3f3e5ea068c53d8c4de; a73d9fe341d55ad76ddbba647513cf27864218a2) - DUNE Optical Detector Software Enhancement (DUNE/duneopdet): Introduces significant updates for optical hits processing and flash generation from adjacent hits to improve solar neutrino analysis. (Commit: 80ae47e24ae7ab8b91e51f7b9ac8a3d33d1c3d3b – Merge branch 'release/v10_20_06d00') - CI Regression Test Efficiency (DUNE/dunesw): Optimized CI regression tests by lowering memory usage thresholds to improve resource allocation and test speed. (Commits: f62731821007cf5511acf85901a47e42f5392dd2; 3b776cf8094ad39abd2ae56340d5304de613cf6d) Major bugs fixed: - No explicit bug fixes recorded this month; focus was on feature delivery, version alignment, and CI optimization, all contributing to stability and maintainability by ensuring compatibility and efficient testing. Overall impact and accomplishments: - Accelerated release readiness across the DUNE ecosystem with aligned versions and dependencies, enabling rapid access to latest fixes and features. - Strengthened data analysis capabilities (ROI-focused tooling) and improved detector simulation and data processing pipelines, directly supporting physics analyses and study throughput. - Improved CI efficiency and resource utilization, shortening iteration cycles and reducing infra costs. - Demonstrated end-to-end capabilities across multiple subsystems: ROI analysis, LAr TPC simulation, optical detector processing, and robust build/dependency management. Technologies/skills demonstrated: - Version and dependency management across a multi-repo codebase; build system alignment and release readiness. - Modular software design and integration across ROI analysis, detector simulation, and optical processing modules. - Data handling improvements (ROI workflows, optical hits, flash generation) and performance optimization in CI. - Experience with release branching strategies and mid-release integration (Merge releases v10_20_06d00). - Exposure to compression techniques and advanced data processing considerations (e.g., Huffman compression mentioned in data descriptions).

March 2026

26 Commits • 8 Features

Mar 1, 2026

March 2026 monthly summary: The DUNE software stack achieved a coordinated 10.20.x release readiness across seven repositories (DUNE/duneana, DUNE/dunecore, DUNE/dunesim, DUNE/dunesw, DUNE/duneopdet, DUNE/dunereco, DUNE/duneprototypes). Release engineering and dependency hygiene were strengthened through multiple, aligned version bumps and dependency updates, enabling smoother integration with newer modules and downstream features. Notable feature work includes Build and Dependency Stabilization in duneana and Release Versioning Scheme Update in dunecore, along with Release Versioning and Dependency Alignment in dunesim, dunesw, duneopdet, dunereco, and duneprototypes for the 10.20.x series. ProtoDUNE CI/Test Suite Revamp in dunesw removed legacy protoDUNEdp tests and added regression tests for ci_reco_s0 and ci_reco_s1, improving CI reliability and coverage. A critical bug in SolarNuAna analyze() was fixed by correcting indentation and a missing parenthesis in SolarNuAna_module.cc, restoring correct functionality. Overall impact includes faster, safer releases with reduced integration risk, improved build stability, and stronger test coverage, directly supporting faster delivery of features and fixes with higher confidence. Technologies and skills demonstrated include cross-repo release engineering, versioning strategy, dependency management, CMake/product_deps alignment, CI/test modernization, and multi-team collaboration.

February 2026

7 Commits • 6 Features

Feb 1, 2026

February 2026 performance summary: Led a cross-repo dependency and version upgrade initiative across seven DUNE repositories (DUNE/dunesw, DUNE/duneopdet, DUNE/dunereco, DUNE/dunecore, DUNE/duneana, DUNE/dunesim, DUNE/duneprototypes) to align versions and dependencies for improved compatibility and faster feature adoption. Actions included updating dependencies to latest compatible versions, validating build stability, and ensuring consistency of versioning across environments. A targeted bug fix in Dunereco aligned DuneCore and DunePrototypes version strings with updated dependencies, eliminating environment drift and simplifying release cycles. The consolidated effort enhances cross-environment compatibility, reduces environment-related failures, and accelerates access to new capabilities for downstream workloads.

January 2026

16 Commits • 8 Features

Jan 1, 2026

January 2026 monthly summary focusing on cross-repo feature delivery, dependency/version alignment, and build stabilization across the DUNE ecosystem. Key outcomes include integration of ShSeg plugin utilities into FDSensOpt and systematic dependency upgrades (10.16.00d00 / 10.17.00d00) across dunereco, dunecore, duneprototypes and related modules, plus targeted build-stability fixes for the C14 compiler.

December 2025

14 Commits • 7 Features

Dec 1, 2025

Concise monthly summary for 2025-12 focusing on business value and technical achievements across the DUNE software stack. All repositories underwent system-wide dependency and version upgrades to align with larsoft v10_15_00 and to enable access to the latest features and fixes. Notable fixes were applied to critical modules to maintain compatibility and stability by adding required utility headers and necessary ROOT dependencies. These changes improve build stability, integration readiness, and future maintainability across the DUNE projects.

November 2025

14 Commits • 7 Features

Nov 1, 2025

Month: 2025-11 Key features delivered include broad dependency upgrades across all active DUNE repositories to the latest compatible versions, enabling access to new features and performance improvements. Release-readiness alignment was achieved for release-focused repos, and upgrade patterns were standardized across the codebase to improve maintainability. Major bugs fixed: none explicitly reported in this period; efforts focused on upgrade stability and compatibility. Overall impact: reduced technical debt, improved cross-repo compatibility, and enhanced readiness for upcoming releases and downstream feature work. Technologies/skills demonstrated: cross-repo dependency management, version pinning and upgrade automation, release engineering, build stability, and multi-repo collaboration across teams.

October 2025

49 Commits • 7 Features

Oct 1, 2025

October 2025 performance summary focused on release engineering and dependency hygiene across the DUNE software stack. Delivered consolidated release readiness through version bumps and dependency synchronization across seven repositories (duneana, duneopdet, dunecore, dunereco, dunesim, duneprototypes, dunesw) to align with the v10.x release line. Updated CMakeLists.txt and ups/product_deps to reflect new version strings and dependency references, enabling consistent builds, packaging, and release packaging. These changes reduce integration risk, improve build reliability, and accelerate time-to-release by ensuring all major components are aligned to the same baseline.

September 2025

8 Commits • 7 Features

Sep 1, 2025

September 2025 delivered a coordinated patch-release cycle across seven DUNE repositories, standardizing version bumps to v10_10_04d00 and upgrading core dependencies (notably larsoft to v10.10.04) to enhance stability and maintainability. All projects (dunecore, duneopdet, dunesw, dunesim, duneana, dunereco, duneprototypes) were aligned to the same release line, with CMakeLists.txt version increments and ups/product_deps updates to enable consistent downstream builds and patch deployments.

August 2025

24 Commits • 8 Features

Aug 1, 2025

The month 2025-08 focused on stabilizing the build process and aligning dependencies across the DUNE suite to support the 10.10 release cycle. Delivered targeted build-system improvements, multi-repo dependency upgrades, and synchronized versioning to improve reliability and accelerate releases across seven repositories.

June 2025

20 Commits • 7 Features

Jun 1, 2025

June 2025 monthly summary for the DUNE software stack. Focused on stability, release-readiness, and cross-repo packaging improvements to enable a smooth patch release and reproducible builds across the collaboration.

May 2025

16 Commits • 8 Features

May 1, 2025

May 2025 was focused on release engineering and cross-repo dependency alignment for the DUNE software stack. Completed two major Dunecore release cycles and synchronized versioning and dependencies across seven repositories, enabling reproducible builds, packaging readiness, and smoother downstream distribution. No explicit bug fixes were recorded in this period; the work concentrated on preparing stable, well-versioned releases across the stack.

Activity

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Quality Metrics

Correctness98.8%
Maintainability98.4%
Architecture98.2%
Performance97.6%
AI Usage20.4%

Skills & Technologies

Programming Languages

C++CMakeCMakeScriptFCLNonePythonShell

Technical Skills

Build SystemBuild System ConfigurationBuild System ManagementBuild SystemsC++C++ developmentCI/CDCMakeCMake build systemCMake configurationCompiler CompatibilityConfiguration ManagementContinuous IntegrationData AnalysisData Processing

Repositories Contributed To

7 repos

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

DUNE/dunesw

May 2025 Apr 2026
11 Months active

Languages Used

C++CMakePythonFCL

Technical Skills

Build System ConfigurationBuild System ManagementBuild SystemVersion ControlDependency ManagementCMake

DUNE/dunecore

May 2025 Mar 2026
10 Months active

Languages Used

C++ShellCMake

Technical Skills

Build SystemBuild System ConfigurationBuild SystemsC++Compiler CompatibilityDependency Management

DUNE/duneana

May 2025 Apr 2026
11 Months active

Languages Used

C++CMakeNone

Technical Skills

Build SystemBuild System ManagementVersion ControlBuild System ConfigurationDependency ManagementCMake

DUNE/duneopdet

May 2025 Apr 2026
11 Months active

Languages Used

C++CMake

Technical Skills

Build SystemBuild System ManagementVersion ControlBuild System ConfigurationC++Software Development

DUNE/dunesim

May 2025 Apr 2026
11 Months active

Languages Used

C++CMake

Technical Skills

Build System ConfigurationBuild System ManagementVersion ControlBuild SystemDependency ManagementCMake

DUNE/duneprototypes

May 2025 Apr 2026
11 Months active

Languages Used

C++CMake

Technical Skills

Build System ConfigurationVersion ManagementBuild System ManagementDependency ManagementCMakedependency management

DUNE/dunereco

May 2025 Apr 2026
11 Months active

Languages Used

C++CMakeCMakeScript

Technical Skills

Build SystemBuild System ManagementVersion ControlDependency ManagementBuild System ConfigurationCMake