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Jan Koscielniak

PROFILE

Jan Koscielniak

Jakub Kosciecha developed and enhanced CI/CD and security automation across several Red Hat repositories, including konflux-ci/mobster and enterprise-contract/ec-policies. He implemented policy-based controls for dependency sources, improved SBOM traceability with digest-based naming, and built a CLI for authenticated SBOM uploads to Red Hat Trusted Profile Analyzer using Python and OIDC. Jakub strengthened integration testing by validating Cosign attestations and streamlined production builds to reduce risk. His work stabilized image verification pipelines in operator-pipelines by aligning Podman and Sequoia crypto policies. Throughout, he applied skills in Python, containerization, and DevOps, delivering robust, maintainable solutions to complex automation challenges.

Overall Statistics

Feature vs Bugs

86%Features

Repository Contributions

11Total
Bugs
1
Commits
11
Features
6
Lines of code
1,784
Activity Months5

Work History

February 2026

1 Commits

Feb 1, 2026

February 2026 focused on stabilizing the Image Verification Pipeline in the redhat-openshift-ecosystem/operator-pipelines project and aligning it with current Podman/Sequoia policies. Implemented policy-level and pipeline-level changes to prevent flaky behavior and to support SHA-1 verification under the Sequoia backend, delivering a more reliable CI flow and improved security posture.

January 2026

4 Commits • 2 Features

Jan 1, 2026

Summary for 2026-01: In konflux-ci/mobster, delivered Conforma integration test enhancements with Cosign attestation validation, and streamlined CI and production builds. This work improved test coverage, reliability, and production safety by excluding Conforma binary from production, ensuring formatting is applied before checks, and tightening the CI pipeline. These changes reduce production risk, speed up feedback loops, and demonstrate expertise in test automation, image signing, and CI/CD practices.

June 2025

3 Commits • 1 Features

Jun 1, 2025

June 2025 monthly summary for konflux-ci/mobster focusing on SBOM upload to Red Hat Trusted Profile Analyzer (TPA) via OIDC authentication. Delivered a CLI that supports uploading a single file or all files in a directory, with configuration guidance and new OIDC/TPA API modules. Implemented robust error handling and retry mechanisms to improve reliability of TP A uploads. Refactored OIDC client tests to increase reliability and fixed worker-count logic during directory uploads.

December 2024

1 Commits • 1 Features

Dec 1, 2024

December 2024 monthly summary: Delivered SBOM Naming Enhancement for OCI Copy Operations in konflux-ci/build-definitions. The feature dynamically names SBOMs as registry/repository@digest using the pushed image's digest, improving traceability, auditability, and compliance readiness for generated SBOMs. No major bugs fixed this month. Impact: clearer artifact provenance in CI pipelines, reduced risk of ambiguity in SBOM artifacts, and smoother integration with downstream tooling. Technologies demonstrated include OCI copy operations, digest-based naming, and SBOM-aware artifact management.

November 2024

2 Commits • 2 Features

Nov 1, 2024

November 2024: Strengthened the security and reliability of our build pipelines by delivering policy-based controls for dependency sources and comprehensive documentation for a generic fetcher, across ec-policies and konflux-ci/docs. No critical bug fixes recorded for this period.

Activity

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Quality Metrics

Correctness91.8%
Maintainability89.2%
Architecture88.2%
Performance83.6%
AI Usage31.0%

Skills & Technologies

Programming Languages

BashDockerfileMakefilePythonRegoYAMLadoc

Technical Skills

API IntegrationAnsibleAsynchronous ProgrammingAuthenticationBuild AutomationCI/CDCLI DevelopmentCommand-line InterfaceContainerizationDevOpsDocumentationError HandlingFile HandlingFile UploadsIntegration Testing

Repositories Contributed To

5 repos

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

konflux-ci/mobster

Jun 2025 Jan 2026
2 Months active

Languages Used

PythonDockerfileMakefileYAML

Technical Skills

API IntegrationAsynchronous ProgrammingAuthenticationCLI DevelopmentCommand-line InterfaceError Handling

enterprise-contract/ec-policies

Nov 2024 Nov 2024
1 Month active

Languages Used

Rego

Technical Skills

DevOpsPolicy as CodeSecurity

konflux-ci/docs

Nov 2024 Nov 2024
1 Month active

Languages Used

adoc

Technical Skills

Documentation

konflux-ci/build-definitions

Dec 2024 Dec 2024
1 Month active

Languages Used

YAML

Technical Skills

Build AutomationCI/CD

redhat-openshift-ecosystem/operator-pipelines

Feb 2026 Feb 2026
1 Month active

Languages Used

BashYAML

Technical Skills

AnsibleContainerizationDevOpsPodman