foxglove/mcap
Dec 2024 – Sep 2025
2 Months active
Languages Used
GoPythonYAML
Technical Skills
Data HandlingFile ManagementTestingDevOpsGitHub Actions
Jeff Zellner
PROFILE
Jeff Zellner
Worked on the foxglove/mcap repository to streamline test execution and improve repository governance. Delivered a feature that reduced the size of demo.bag and demo.mcap test files, updating both Go and Python test suites to maintain coverage while accelerating continuous integration runs and lowering resource usage. Focused on data handling, file management, and testing to ensure efficient CI processes without sacrificing reliability. Later, addressed repository governance by updating CODEOWNERS, removing an outdated user to reflect current ownership and strengthen code review accountability. Demonstrated skills in DevOps, GitHub Actions, and cross-language test maintenance, emphasizing repository hygiene and sustainable development practices.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
2Total
Bugs
0
Commits
2
Features
2
Lines of code
26
Activity Months2
Your Network
34 peopleSame Organization
@eml.cc5
Work History
September 2025
1 Commits • 1 Features
Sep 1, 2025September 2025: Governance and ownership housekeeping in foxglove/mcap. Removed user 'jz' from CODEOWNERS to reflect updated ownership and governance; no user-facing product changes. This change strengthens code review processes, accountability, and future audits while preserving stability.
1 Commits • 1 Features
Sep 1, 2025September 2025: Governance and ownership housekeeping in foxglove/mcap. Removed user 'jz' from CODEOWNERS to reflect updated ownership and governance; no user-facing product changes. This change strengthens code review processes, accountability, and future audits while preserving stability.
September 2025
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 — Foxglove/mcap: Key feature delivered was shrinking demo test data to speed up tests. Reduced demo.bag and demo.mcap sizes; updated Go and Python test suites to reflect smaller datasets. Commit: 6631fbc81c463f4917c21b90724115dd9e8be0a0 ('Use smaller testdata files (#1283)'). No major bugs fixed this month; focus was on test data management and CI efficiency. Impact: faster CI runs, lower resource usage, and preserved test coverage. Skills demonstrated: test data governance, cross-language test maintenance (Go and Python), repository hygiene and CI optimization.
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 — Foxglove/mcap: Key feature delivered was shrinking demo test data to speed up tests. Reduced demo.bag and demo.mcap sizes; updated Go and Python test suites to reflect smaller datasets. Commit: 6631fbc81c463f4917c21b90724115dd9e8be0a0 ('Use smaller testdata files (#1283)'). No major bugs fixed this month; focus was on test data management and CI efficiency. Impact: faster CI runs, lower resource usage, and preserved test coverage. Skills demonstrated: test data governance, cross-language test maintenance (Go and Python), repository hygiene and CI optimization.
Activity
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Quality Metrics
Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance100.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
GoPythonYAML
Technical Skills
Data HandlingDevOpsFile ManagementGitHub ActionsTesting
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline