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Michael Skarbek

PROFILE

Michael Skarbek

Over an 18-month period, Michael Skarbek engineered and maintained core cost management and data processing features for the project-koku/koku repository. He delivered robust API enhancements, modernized data pipelines, and improved reporting accuracy by leveraging Python, SQL, and Kubernetes. Michael migrated legacy data catalogs to AWS Glue, implemented autoscaling with Prometheus, and refactored backend logic for reliability and maintainability. His work included security hardening, dependency automation, and CI/CD optimization, reducing operational risk and streamlining deployments. By introducing granular cost metrics, advanced filtering, and cross-cluster allocation, he enabled precise, scalable analytics while ensuring code quality through rigorous testing and documentation practices.

Overall Statistics

Feature vs Bugs

76%Features

Repository Contributions

146Total
Bugs
21
Commits
146
Features
67
Lines of code
56,703
Activity Months18

Work History

April 2026

1 Commits • 1 Features

Apr 1, 2026

April 2026: Delivered Pipeline Logs Export to Quay feature for opendatahub-io/kserve by adding export-pipeline-logs task and binding a pipeline-logs workspace as an emptyDir to enable archiving and pushing Tekton task logs to Quay. Updated the group test pipeline to include the new task, ensuring end-to-end log export is exercised in CI. No major bugs fixed this month; the focus was on enabling observability, traceability, and log-driven debugging for KServe workflows.

March 2026

7 Commits • 4 Features

Mar 1, 2026

March 2026 monthly highlights for software development and security hygiene across multiple data services repos. This period focused on tightening security testing, reducing noise in Snyk scans, and tightening compliance with security standards while maintaining delivery velocity.

February 2026

4 Commits • 2 Features

Feb 1, 2026

February 2026 monthly summary focused on delivering security hardening, CI optimization, and toolchain stabilization across two repositories (openshift/release and red-hat-data-services/odh-model-controller). Implemented a Go toolchain upgrade for odh-model-controller, aligned test tooling, and streamlined CI by removing an unnecessary unit-test job. Added TLS 1.2 minimum enforcement for the HTTP client to strengthen security posture and regulatory compliance.

January 2026

5 Commits • 2 Features

Jan 1, 2026

2026-01 Performance summary: Delivered measurable business value by stabilizing dependencies, expanding OpenShift-aware capabilities in AWS category type-ahead, and improving data correctness in SQL queries. Automated dependency maintenance reduced manual workload and operational risk; OpenShift-aware type-ahead enhancements improve filtering accuracy and reporting for cost categorization; explicit date casting in SQL ensures reliable date-based comparisons for analytics.

December 2025

6 Commits • 2 Features

Dec 1, 2025

December 2025 monthly summary for project-koku/koku focusing on delivering business value through enriched GPU reporting and cross-cluster cost allocation. Key enhancements improved reporting granularity, usability, and accuracy for multi-cluster OpenShift environments, enabling better cost visibility and decision making. All work maintained strong traceability with commit-level changes and clear API improvements that reduce manual effort for users and accelerate data-driven insights.

November 2025

4 Commits • 3 Features

Nov 1, 2025

November 2025 (2025-11) monthly summary for project-koku/koku. Key deliverables focused on removing technical debt, documenting architecture, and hardening the security posture. Major bugs fixed: none reported this month. Business impact: simplified codebase, clearer architecture, and improved stability and onboarding. Technologies demonstrated: code cleanup, SQL/file management, architecture documentation, dependency management, and security-conscious development.

October 2025

12 Commits • 5 Features

Oct 1, 2025

Oct 2025: Delivered multiple features to improve data accuracy, reliability, and user experience in Koku. Implemented Node Architecture Tagging in OCPNode with a DB migration and YAML labels to improve cost attribution. Reworked Azure data access by migrating to BlobServiceClient and adding robust authorization error handling to increase cost data reliability. Fixed critical forecasting RBAC filtering and ensured OCP summaries trigger with valid metadata, improving data visibility and trust. Standardized GCP report filtering and set ForecastListPaginator default to 100 for a consistent UX. Added Kubernetes deployment annotations to suppress kube-linter warnings and enable cost-saving deployment configurations. Completed maintenance tasks—test fixes, dependency bumps, and CI cleanup—to boost stability and release velocity.

September 2025

8 Commits • 4 Features

Sep 1, 2025

September 2025 monthly summary for project-koku/koku focusing on business value, scalability, security, and reliability. Implemented automated scaling for download and summary workers to optimize resource usage and reduce latency under load. Centralized AWS credential management via Kubernetes secrets to improve security posture. Simplified feature flag management by delegating to Unleash at worker startup. Delivered data reliability and accuracy improvements to prevent processing failures and improve reporting quality.

August 2025

16 Commits • 5 Features

Aug 1, 2025

August 2025: Delivered targeted data precision improvements, de-risked pipelines by removing legacy flows, strengthened operational reliability, and improved developer experience—driving both business value and maintainability for project-koku/koku.

July 2025

8 Commits • 4 Features

Jul 1, 2025

July 2025 monthly summary for project-koku/koku: Implemented core reporting reliability and performance enhancements, expanded tagging capabilities, and streamlined CI/CD, delivering more accurate multi-provider cost reporting and faster deployment cycles.

June 2025

8 Commits • 4 Features

Jun 1, 2025

June 2025 monthly summary for project-koku/koku: Delivered notable features across cost management, data integrity, autoscaling, and stability. Focused on consolidating dependencies, expanding cost metrics, improving data schema for temporary tables, and enhancing scaling capabilities. Reduced alert noise while preserving behavior.

May 2025

9 Commits • 3 Features

May 1, 2025

Concise monthly performance summary for project-koku/koku (May 2025) focusing on business value and technical achievements. Overview: Delivered security hardening, pipeline modernization, reliability fixes, and stability improvements across the data processing and deployment stack. Resulted in improved security posture, more robust data processing, and increased system reliability for both internal teams and external consumers.

April 2025

6 Commits • 3 Features

Apr 1, 2025

April 2025 monthly summary for project-koku/koku focusing on delivering cost model distribution improvements, ROSA cost analysis environment setup, and tooling/CI enhancements. Achievements include improved cost accuracy and data quality, new ROSA YAMLs for demonstrations, and clearer ImportError handling in CI, with OpenShift doc cleanup for maintainability.

March 2025

6 Commits • 4 Features

Mar 1, 2025

2025-03 Monthly summary for project-koku/koku focused on platform upgrades, reliability improvements, and developer productivity. Delivered a PostgreSQL 16 upgrade across config and Docker, optimized CI/CD workflows for reliability and security, refreshed dependencies and CloudWatch integration, and added programmatic cache invalidation capabilities via a new API endpoint. These changes reduce maintenance overhead, improve performance, and strengthen observability.

February 2025

13 Commits • 5 Features

Feb 1, 2025

February 2025 performance summary for project-koku/koku focused on platform modernization, cost visibility, and CI/CD resiliency. Key deliverables include migrating the Hive Metastore to AWS Glue Data Catalog, simplifying deployment credentials, and enabling Glue usage in daily tests with progress logging. Additional improvements encompassed secrets/credential handling, OpenShift cost reporting, Kafka status checks modernization, and CI/CD infrastructure upgrades. These efforts reduce operational complexity, improve data governance, accelerate test cycles, and enhance cost accuracy across OpenShift and cloud components.

January 2025

23 Commits • 10 Features

Jan 1, 2025

January 2025 (2025-01) monthly performance summary for project-koku/koku. Focused on security hygiene, deployment reliability, and data/catalog readiness. Key features delivered include consolidated dependency management with grouped upgrades/removals and Dependabot configuration, preparation for AWS Glue Data Catalog migration, and Celery task ID chaining to improve observability of asynchronous workflows. Security and configuration hygiene were strengthened through removal of ephemeral secrets in clowdapp, cleanup of unused environment variables, and fixes to ephemeral bucket naming. Deployment safety was enhanced with Quay API tag availability checks and PR/test readiness improvements to support safer releases. These efforts reduce operational risk, shorten CI/CD feedback loops, and establish a solid foundation for future data catalog migrations and automation. Technologies/skills demonstrated: Python, Celery, AWS Glue Data Catalog, Dependabot, Quay API, Docker Compose, SQL fixes, security hygiene, CI/CD scripting.

December 2024

2 Commits • 1 Features

Dec 1, 2024

December 2024 monthly summary for project-koku/koku focusing on security and compatibility through dependency updates in Pipfile.lock. The work enhances security posture and stability by keeping core dependencies up-to-date with security patches and compatibility across runtimes, while maintaining CI reliability for ongoing development.

November 2024

8 Commits • 5 Features

Nov 1, 2024

November 2024 (project-koku/koku) Highlights include currency expansion, build/tooling improvements, observability enhancements, dependency upkeep, and data extraction performance optimization. Delivered INR and BRL currency support with API and DB migrations, plus naming capitalization fixes for consistency across descriptions. Strengthened CI/CD and code quality with a switch to pipenv --deploy and a pre-commit JSON formatting hook. Added detailed SUBSDataExtractor logging to improve debugging of data extraction workflows. Updated core dependencies (pandas, azure-core, etc.) and operator versions to maintain fixes and compatibility. Refactored subs data extraction to use Trino subqueries for joining with PostgreSQL, removing an expensive Django ORM excluded-IDs fetch and boosting overall workflow efficiency. Focused on business value through expanded currency support, improved reliability, faster data pipelines, and maintainable tooling.

Activity

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Quality Metrics

Correctness90.0%
Maintainability89.2%
Architecture87.0%
Performance83.0%
AI Usage22.6%

Skills & Technologies

Programming Languages

BashDockerfileGoINIJavaScriptMakefileMarkdownPythonSQLShell

Technical Skills

API DevelopmentAPI IntegrationAPI designAPI developmentAWSAWS GlueAWS SDKAsynchronous Task ProcessingAutoscalingAzureAzure SDKBackend DevelopmentBug FixBuild AutomationCI/CD

Repositories Contributed To

5 repos

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

project-koku/koku

Nov 2024 Jan 2026
15 Months active

Languages Used

PythonSQLShellyamlYAMLpythonshellsql

Technical Skills

API DevelopmentBackend DevelopmentBuild AutomationCI/CDCode FormattingData Engineering

openshift/release

Feb 2026 Feb 2026
1 Month active

Languages Used

YAML

Technical Skills

CI/CDConfiguration ManagementContainerizationContinuous IntegrationDevOpsKubernetes

red-hat-data-services/odh-model-controller

Feb 2026 Mar 2026
2 Months active

Languages Used

GoYAML

Technical Skills

Gobackend developmentConfiguration ManagementDevOpsSecuritysecurity best practices

red-hat-data-services/kserve

Mar 2026 Mar 2026
1 Month active

Languages Used

DockerfileYAML

Technical Skills

Code QualityComplianceConfiguration ManagementContainerizationDevOpsSecurity

opendatahub-io/kserve

Mar 2026 Apr 2026
2 Months active

Languages Used

PythonYAML

Technical Skills

Pythonend-to-end testingsecurity best practicesCI/CDDevOpsTekton