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kellijohnson-NOAA

PROFILE

Kellijohnson-noaa

Over 18 months, contributed to NOAA-FIMS/FIMS and related repositories by building robust backend infrastructure, modernizing data models, and streamlining CI/CD pipelines. Leveraged C++, R, and GitHub Actions to deliver features such as time-varying stock assessment models, unified data processing, and automated testing frameworks. Refactored APIs and data structures for maintainability, improved documentation and onboarding, and implemented automation for PR tracking and contributor workflows. Addressed bugs in memory management and data validation, ensuring reliable analytics and reproducible builds. The work emphasized code quality, cross-platform compatibility, and efficient collaboration, resulting in scalable, maintainable tools for fisheries science and statistical modeling.

Overall Statistics

Feature vs Bugs

88%Features

Repository Contributions

130Total
Bugs
9
Commits
130
Features
64
Lines of code
57,430
Activity Months18

Work History

July 2026

4 Commits • 4 Features

Jul 1, 2026

July 2026 monthly summary for NOAA-FIMS/FIMS highlighting targeted maintainability and automation improvements that reduce operational risk and speed PR workflows.

June 2026

11 Commits • 2 Features

Jun 1, 2026

June 2026 monthly summary for NOAA-FIMS/FIMS: Strengthened CI/CD foundation, stabilized testing/metrics, and improved UX and attribution metadata. These outcomes delivered faster, more reliable feedback loops, reduced compute waste, and clearer branding across the repository. Key highlights: - CI/CD pipeline modernization and environment reliability: PR checks, automated resource cleanup, cross-platform setup improvements, and enhanced metric workflows to boost reliability and efficiency of automated testing and metric collection. - CLI user-facing grammar fix: resolved a pluralization typo in the optimizer restart messaging to improve UX consistency. - Documentation and attribution metadata updates: added author ORCID metadata and refreshed branding/status badges to align with current branding. Impact and value: - Reduced flaky tests and unnecessary runs, accelerating merge cycles and improving confidence in the codebase. - More accurate and timely metric reporting enabling data-driven performance improvements. - Clearer attribution and branding supporting external collaborations and open-source visibility. Technologies/skills demonstrated: - CI/CD automation with GitHub Actions, cross-platform workflow tuning, and resource management. - R-related testing tooling (R CMD CHECK, Gtests, devtools::test) and CLI UX considerations. - OpenMP integration on macOS and dependency management (libomp via Homebrew, pak). - Documentation hygiene and metadata management (ORCID, status badges).

May 2026

3 Commits • 3 Features

May 1, 2026

May 2026 NOAA-FIMS/FIMS monthly summary focusing on key accomplishments, major bug fixes, and overall impact. Highlights center on modernizing the Git workflow, clarifying release boundaries, and aligning CI metrics with current main artifacts to improve reliability and business value.

April 2026

15 Commits • 5 Features

Apr 1, 2026

Month: 2026-04 Concise monthly summary focused on delivering business value and technical excellence across NOAA-FIMS repositories. Highlights include CI/CD optimizations, release-quality logging improvements, and substantial modeling and development environment enhancements that improve stability, reproducibility, and speed of delivery. Key features delivered: - NOAA-FIMS/FIMS - CI/CD: Code coverage cleanup and deprecation. Stopped code coverage builds on non-main branches and ensured coverage is built on main. Disabled testdown and code coverage in workflows; removed references in documentation. Commits illustrate cleanup and deprecation across the workflow. - FIMS: Logging improvements and 0.9.3 release. Updated version to 0.9.3, refined logging for clarity and reduced verbosity; adjusted integration tests to match logging changes and revert prior changes that caused test failures. - NOAA-FIMS/case-studies - Stock assessment model enhancements and case-study improvements. Switched hake assessments to Bayesian methods due to MLE mapping issues; fixed pollock mortality calculation and output; refined case study BAM comparisons; added Gulf of Alaska pollock and Pacific hake content; updated pacific-hake model for r4ss converter changes. - CI/CD workflow and package management improvements for R projects. Introduced github:: based sourcing for extra packages, experimented with parallel non-CRAN installs, CRAN lockfile usage, and dependency order improvements to speed up and stabilize builds. - Development environment enhancements. Added more R packages for statistical analysis and visualization to support modeling and reporting. - File naming consistency fix. Renamed pacific_hake.RDS to uppercase extension to align with project conventions. Major bugs fixed: - Pollock mortality figure calculation corrected (mortality_F is by age; used exp(log_Fmort); fixed output vs. saved figures). - File naming inconsistency resolved (pacific_hake.RDS extension uppercased). - Reverted changes that caused test failures and updated tests to reflect logging behavior, improving test stability. Overall impact and accomplishments: - More reliable, scalable CI/CD pipelines across both code and data science workflows, reducing build times and friction for PRs. - Release-ready updates with clearer logs and stable tests, improving operability in production and downstream integrations. - Improved model quality and reproducibility in stock assessment analyses and case studies, enabling faster, more defensible policy-relevant insights. - Strengthened development environment and packaging practices, reducing external dependency risks and enabling smoother collaboration. Technologies/skills demonstrated: - CI/CD orchestration with GitHub Actions, workflow cleanup, and documentation alignment. - R ecosystem tooling: github::, pak, CRAN lockfiles, non-CRAN parallel installs, r4ss compatibility. - Bayesian methods in fisheries stock assessment, data visualization, and robust testing practices. - Strong emphasis on business value through faster delivery cycles, stable modeling outputs, and reproducible analyses.

March 2026

13 Commits • 5 Features

Mar 1, 2026

In March 2026, NOAA-FIMS/FIMS delivered a major release and foundational refactors that strengthen reliability, maintainability, and business value. Key features delivered include a feature-complete FIMS 0.9.0 release with time-varying weight-at-age and selectivity, plus recruitment deviations enabled as random effects by default, accompanied by documentation improvements and bug fixes. Core infrastructure improvements include API naming consistency and code cleanup, and a comprehensive data structure overhaul that transitions to data_big with stronger input validation and enhanced plotting. A targeted data validation fix guards against fitting when age_to_length_conversion data is missing, preventing runtime errors. Expanded testing and coverage, including initialization, JSON writing, and selectivity tests, along with whitespace fixes, strengthen confidence in releases. Documentation and user-facing polish — including plotting docs, doxygen/pkgdown links, and removal of obsolete codepaths — improves usability and reduces support toil. Overall, the month delivered meaningful business value by increasing model reliability, reducing risk of bad fits, and accelerating downstream analytics for stakeholders.

February 2026

3 Commits • 2 Features

Feb 1, 2026

February 2026 Monthly Summary for NOAA-FIMS/case-studies: Delivered key features and fixes to improve reliability, scalability, and decision-support value. - Features delivered: updated case studies to FIMS v0.8.0 with time-varying data handling and memory optimizations. - Documentation improvements: clarified Pacific Hake model data sources and configurations used in FIMS assessments. - Bug fixes: corrected the natural mortality output filter for ages 1–5 to ensure accurate data filtering. These changes improve data integrity, enable larger scenario analyses with reduced memory footprint, and align with the latest FIMS mainline. Technologies demonstrated: version control discipline, cross-repo collaboration, data modeling improvements, and robust documentation.

January 2026

1 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary for NOAA-FIMS/FIMS focused on stabilizing and accelerating the R-based development and documentation workflow. Delivered an R installation and documentation build enhancement that streamlines the R setup and fixes asset paths used during documentation generation. Addressed build reliability by fixing CMake build issues, reducing pipeline failures and enabling faster feedback loops. The improvements in asset handling for documentation generation contributed to more reproducible builds across environments and simpler onboarding for new contributors.

December 2025

10 Commits • 3 Features

Dec 1, 2025

In 2025-12, NOAA-FIMS/FIMS delivered focused features to improve biomass reporting, data handling, and CI/CD/docs tooling, delivering business value through more accurate reporting, cleaner data pipelines, and more reliable releases. Key outcomes include spawning biomass (SB) included in FIMSFit output with clarified formatting; refactors in data preparation to enable future model-type flexibility; and strengthened automation and documentation tooling to reduce maintenance overhead and accelerate releases. These changes improve data integrity, modeling agility, and deployment reliability while showcasing skills in data engineering, software engineering discipline, and cross-functional collaboration.

October 2025

2 Commits • 1 Features

Oct 1, 2025

October 2025 monthly summary: Delivered foundational data model modernization in NOAA-FIMS/FIMS by consolidating multiple date fields into a single timing field and integrating the Catch-At-Age model. Ensured backward compatibility between legacy and new JSON formats, establishing a stable data foundation for future surplus production analytics. These changes simplify data handling, reduce maintenance complexity, and enable the next phase of analytics and reporting.

September 2025

11 Commits • 4 Features

Sep 1, 2025

September 2025 (2025-09) monthly summary for NOAA-FIMS/FIMS: Delivered a set of focused improvements including spell-check quality, documentation, maintenance automation, and release readiness. End-to-end work reinforced product quality, developer experience, and release velocity.

August 2025

4 Commits • 4 Features

Aug 1, 2025

August 2025 monthly summary focusing on business value and technical achievements across NOAA-FIMS/FIMS and NOAA-FIMS/case-studies. Key outcomes include CI reliability improvements, documentation consolidation and API deprecation, test data preparation speedups, and revamped parameter estimation configuration enabling flexible modeling across case studies. These changes shorten feedback loops, reduce maintenance burden, and improve onboarding and cross-team collaboration.

July 2025

7 Commits • 4 Features

Jul 1, 2025

July 2025 performance summary for NOAA-FIMS repositories. Focused on stabilizing the test suite, delivering foundational backend work for model families, and reducing maintenance overhead while paving the way for future UI integration. Key community and docs improvements also completed to streamline support channels.

June 2025

3 Commits • 2 Features

Jun 1, 2025

June 2025 (2025-06) – NOAA-FIMS/FIMS: Delivered notable documentation improvements and a major release (v0.5.0) that expands modeling capabilities and strengthens data handling. Key work includes documenting the get_observed function, and the v0.5.0 release introducing random effects, fits tibble, SB in model printouts, and a FIMSFit show method, along with data initialization/validation improvements, clang-format fixes, dependency updates, and expanded tests and documentation. No high-severity bugs fixed this month; stability gains stem from release readiness and ongoing maintenance. Business value: enhanced modeling flexibility, better model introspection, improved data integrity, and a more reliable developer workflow. Technologies: C++, R tibble integration, clang-format, CI/testing, data validation.

May 2025

4 Commits • 3 Features

May 1, 2025

May 2025: Delivered CI automation, performance-oriented enhancements, and documentation improvements across NOAA-FIMS repositories, delivering business value through streamlined collaboration, faster compute paths, and easier maintenance. Key deliveries include GitHub Actions for contributor onboarding and PR command automation, Rcpp exports of logit/inv_logit with tests, and documentation/readme enhancements; plus cleanup of outdated R Markdown content in case-studies to reduce technical debt.

April 2025

16 Commits • 8 Features

Apr 1, 2025

April 2025: Delivered Release 0.4.0 for NOAA-FIMS/FIMS, enabling CPUE and landings data handling, finalized scope corrections for finalize(), and boosted test coverage for improved stability and data support. Modernized CI/CD and build infrastructure, including CMake minimum version upgrades, upgraded googletest, and refreshed GitHub Actions workflows, resulting in higher reliability and security. Implemented code quality enhancements with explicit static casting for safety and a consolidated code-checking workflow for C++ and R, including a new check_fims tool. Updated documentation and formatting to improve clarity and pass R CMD checks. In NOAA-FIMS/case-studies, aligned FIMS v0.4 compatibility (data structures and GOA pollock model), improved plotting assets with a consistent color palette, and cleaned up project setup and obsolete rendering instructions. Overall, these efforts improve data reliability, developer productivity, and user-facing visuals, enabling smoother adoption of v0.4 and cross-repo consistency.

March 2025

7 Commits • 5 Features

Mar 1, 2025

March 2025 monthly summary focusing on key accomplishments across NOAA-FIMS/FIMS and leereilly/explore. Delivered major features, fixed stability issues, and advanced code quality and documentation. Highlights include PR Review Checklist Streamlining, improved use_testthat_template documentation and test generation, Rcpp interface memory management improvements, documentation and code style cleanup with enhanced community guidance, and the NSAP Topic Page. These changes reduce review friction, improve testing reliability, prevent memory crashes, and improve discoverability of NOAA NSAP content, aligning with business goals of faster delivery and maintainable, scalable tooling.

February 2025

5 Commits • 3 Features

Feb 1, 2025

February 2025 monthly summary for NOAA-FIMS development work across two repositories. Focused on delivering maintainable data workflows, standardizing testing inputs, and preparing analysis artifacts for the 2025 SRG meeting. No critical bugs fixed recorded this month; emphasis on refactors, documentation, and dependency simplification to reduce maintenance risk and improve reproducibility. Cross-repo collaboration and adherence to conventional commit guidelines improved project organization.

January 2025

11 Commits • 5 Features

Jan 1, 2025

January 2025 performance summary focusing on delivering business value and solid technical foundations across NOAA-FIMS/FIMS and case-studies. Key outcomes include: improved CI/CD stability and maintainability for the FIMS R package; robust CLI/composition handling; unified data processing and model initialization for NEFSC Yellowtail and SEFSC Scamp; adoption of length-based data for PIFSC Opakapaka; and timely automation improvements for Render workflows.

Activity

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Quality Metrics

Correctness93.0%
Maintainability91.4%
Architecture89.4%
Performance87.4%
AI Usage26.0%

Skills & Technologies

Programming Languages

C++CMakeHTMLJSONMarkdownPythonQuartoRR MarkdownRcpp

Technical Skills

API DesignBackend DevelopmentBashBayesian statisticsBug FixingBuild System ConfigurationBuild SystemsC++C++ (via Rcpp)C++ DevelopmentC++ ProgrammingC++ developmentC++ programmingCI/CDCI/CD configuration

Repositories Contributed To

3 repos

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

NOAA-FIMS/FIMS

Jan 2025 Jul 2026
17 Months active

Languages Used

RYAMLC++MarkdownRcppCMakeJSONShell

Technical Skills

CI/CDCI/CD configurationCode formattingCode stylingData ValidationDocumentation

NOAA-FIMS/case-studies

Jan 2025 Apr 2026
8 Months active

Languages Used

C++MarkdownRYAMLQuartoR Markdown

Technical Skills

CI/CDData AnalysisFIMSFisheries ScienceFisheries Stock AssessmentGitHub Actions

leereilly/explore

Mar 2025 Mar 2025
1 Month active

Languages Used

Markdown

Technical Skills

Documentation