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Charlotte Felius

PROFILE

Charlotte Felius

Worked on the duckdb/duckdb-aws repository to deliver four features and one bug fix over three months, focusing on dependency upgrades, CI/CD workflow consolidation, and AWS credential security. Upgraded core and extension dependencies to DuckDB 1.5, synchronized submodules, and improved build reproducibility using CMake and GitHub Actions. Enhanced test infrastructure by integrating Minio and S3 test servers, and introduced explicit versioning in CI for traceable releases. Addressed AWS credential handling by implementing redaction controls and expanding test coverage. Leveraged C++, Bash, and YAML to streamline DevOps processes, improve release readiness, and strengthen security for cloud-based analytics deployments on AWS.

Overall Statistics

Feature vs Bugs

80%Features

Repository Contributions

12Total
Bugs
1
Commits
12
Features
4
Lines of code
133
Activity Months3

Work History

June 2026

3 Commits • 1 Features

Jun 1, 2026

In 2026-06, the duckdb-aws module advanced AWS credential handling with security-focused enhancements and expanded test coverage, delivering tangible business value for cloud-based analytics deployments.

February 2026

6 Commits • 2 Features

Feb 1, 2026

February 2026 — DuckDB AWS extension (duckdb/duckdb-aws): Consolidated CI/CD workflow, aligned dependencies, and improved test infrastructure; introduced explicit DuckDB versioning in CI and enhanced build/test flow; fixed critical Minio-related test failures and integrated S3 test server; submodules aligned to upstream to ensure compatibility; prepared release-ready build artifacts for downstream testing.

January 2026

3 Commits • 1 Features

Jan 1, 2026

January 2026: Delivered a cohesive dependency upgrade cycle to DuckDB 1.5 across core, AWS extension, and CI tooling, with submodule synchronization and version pinning to ensure reproducible builds. This reduces upgrade risk for downstream users and unlocks new DuckDB 1.5 features.

Activity

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Quality Metrics

Correctness91.6%
Maintainability86.8%
Architecture86.8%
Performance86.8%
AI Usage21.8%

Skills & Technologies

Programming Languages

BashC++JSONNoneSQLShellYAML

Technical Skills

AWSAWS integrationC++ developmentCI/CDCMakeContinuous IntegrationDevOpsGitGitHub ActionsSQLSQL testingScriptingShell ScriptingVersion ControlYAML

Repositories Contributed To

1 repo

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

duckdb/duckdb-aws

Jan 2026 Jun 2026
3 Months active

Languages Used

NoneYAMLBashJSONShellC++SQL

Technical Skills

Continuous IntegrationDevOpsGitHub ActionsYAMLversion controlAWS