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Kathryn Mazaitis

PROFILE

Kathryn Mazaitis

Kathryn Mazaitis developed and maintained the pudl-archiver repository, building a robust data archiving pipeline focused on reliability, automation, and data integrity. Over four months, Kathryn engineered features such as per-year data partitioning, checksum-verified uploads with automatic retries, and asynchronous data ingestion, leveraging Python, Playwright, and GitHub Actions. Her work included refactoring core architectures for modularity, enhancing metadata and DOI integration for Zenodo citations, and migrating test suites to Playwright for improved coverage. By addressing edge cases in file handling and strengthening CI/CD workflows, Kathryn delivered a maintainable, scalable solution that improved data accessibility, validation, and developer onboarding.

Overall Statistics

Feature vs Bugs

76%Features

Repository Contributions

69Total
Bugs
8
Commits
69
Features
25
Lines of code
2,995
Activity Months4

Work History

June 2025

23 Commits • 14 Features

Jun 1, 2025

June 2025 (2025-06) focused on reliability, test automation, and developer enablement for pudl-archiver. Key outcomes include: - Checksum verification with automatic retry for uploads to prevent mismatches and reduce 502-related failures, improving data integrity and user experience. - Migration and hardening of the test suite to Playwright across FERC714 and FERC2, with Pixi integration and environment/dependency cleanup to improve reliability and test coverage. - Enhanced diagnostics and logging for zipfile downloads and PDF/HTML edge cases, enabling faster debugging and greater resilience in production workflows. - CI/test stability improvements: restructuring tests, improved timeout handling for page.goto, and fixes for filename collisions and blocked downloads in epapcap. - Documentation improvements: Pixi README updates to guide integration tests, facilitating onboarding and consistent testing.

March 2025

9 Commits • 2 Features

Mar 1, 2025

March 2025 highlights for catalyst-cooperative/pudl-archiver: focused on increasing reliability of data archiving, enhancing metadata and DOI integration for Zenodo citations, and strengthening packaging for easier deployment. Key outcomes include: (1) Archiver robustness and enhanced data collection delivering more reliable data captures, including skipping known empty PDFs, robust download validation, improved retry timeout handling, and inclusion of comprehensive table links in data captures. (2) Cambium metadata and DOI integration with improved metadata presentation and production DOIs for Zenodo citations. (3) Project structure and packaging readiness with refined path organization and initialization files to support packaging and imports. Overall, these changes increase data reliability, improve citation quality, and simplify deployment. Demonstrated technologies include Python-based data validation, retry logic, HTML handling, and packaging best practices.

February 2025

19 Commits • 4 Features

Feb 1, 2025

February 2025 monthly summary for pudl-archiver focused on delivering a scalable, reliable archiving pipeline, strengthening automation, and improving data integrity and governance. The work enables more robust multi-year data ingestion, efficient data retrieval with modern HTTP methods, and clearer metadata standards, providing tangible business value for data accessibility and compliance.

January 2025

18 Commits • 5 Features

Jan 1, 2025

January 2025 monthly summary for catalyst-cooperative/pudl-archiver. Focused on expanding data archiving capabilities, improving reliability, and broadening dataset coverage across multiple archivers. Deliverables were prioritized to maximize business value by enabling per-year data access, robust logging, and easier operational workflows.

Activity

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Quality Metrics

Correctness86.4%
Maintainability88.0%
Architecture82.0%
Performance77.0%
AI Usage20.2%

Skills & Technologies

Programming Languages

BashMarkdownPythonShellTOMLYAML

Technical Skills

API IntegrationAPI InteractionAsynchronous ProgrammingAutomationBackend DevelopmentBrowser AutomationBug FixCI/CDCLI DevelopmentCloud InfrastructureCode OrganizationCode RefactoringCode ReviewConfiguration ManagementData Acquisition

Repositories Contributed To

1 repo

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

catalyst-cooperative/pudl-archiver

Jan 2025 Jun 2025
4 Months active

Languages Used

MarkdownPythonBashYAMLShellTOML

Technical Skills

API IntegrationAPI InteractionAsynchronous ProgrammingBackend DevelopmentBug FixCLI Development

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