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Mikhail Stepura

PROFILE

Mikhail Stepura

Worked across multiple repositories including wazuh-indexer, opensearch-project/data-prepper, and opensearch-project/security to enhance reliability and data quality in backend systems. Delivered a Gradle-based solution for wazuh-indexer that isolated agent module tests in separate JVMs, improving CI stability and reducing test interference. In Data Prepper, implemented deterministic sorting for SinkModel keys and introduced a formatDateTime function to the expression language, supporting ISO 8601 and epoch milliseconds with time zone handling. Addressed test resource reliability in the security repository by refactoring Gradle tasks, resulting in more robust CI pipelines. Utilized Java, Gradle, and build automation throughout these projects.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

4Total
Bugs
2
Commits
4
Features
2
Lines of code
403
Activity Months3

Work History

February 2026

1 Commits

Feb 1, 2026

February 2026 performance review: Focused on reliability of test resources in the opensearch-project/security repository. Delivered a robust fix and refactor to the copyExtraTestResources task to ensure resources are prepared correctly after a clean. This reduces CI flakiness, accelerates feedback cycles, and strengthens the test infrastructure across security features. Tech stack: Gradle, Java, CI/CD pipelines. Business impact: higher confidence in test results, fewer reruns, and smoother developer experience.

September 2025

2 Commits • 1 Features

Sep 1, 2025

September 2025 – Data Prepper (opensearch-project/data-prepper) delivered two core updates that enhance reliability and data quality. 1) SinkModel sorting bug fixed: includeKeys and excludeKeys are now deterministically sorted before use, preventing misbehavior in pipelines. Commit a9035f3e4ad0d5f190d0b72992e46fa3af92123d. 2) Data Prepper formatDateTime: introduced a new formatDateTime function in the expression language to format event date-times, supporting epoch milliseconds and ISO 8601 inputs with proper time-zone handling. Commit 8fa41a1025264c0b1b2365f4e7f9064e8ab7aa13. Impact: more predictable pipelines, reduced runtime errors, easier configuration, and improved time-based data normalization. Technologies/skills: Java/DSL enhancement, date-time handling, unit testing, code quality, Git, and CI workflows.

June 2025

1 Commits • 1 Features

Jun 1, 2025

June 2025 – wazuh-indexer: Delivered a CI reliability enhancement by configuring Gradle to run agent module tests in separate JVMs, achieving improved test isolation and reduced cross-test interference. No critical bugs fixed this month. Impact: more stable CI for agent-related changes, faster feedback, and higher confidence in deployments. Technologies demonstrated: Gradle-based test orchestration, JVM-level isolation, and CI best practices for module-level tests.

Activity

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Quality Metrics

Correctness95.0%
Maintainability90.0%
Architecture85.0%
Performance85.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

GradleGroovyJava

Technical Skills

API DevelopmentBackend DevelopmentBuild AutomationData EngineeringDate and Time FormattingExpression LanguageGradleJavaTestingbuild automationsoftware development

Repositories Contributed To

3 repos

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

opensearch-project/data-prepper

Sep 2025 Sep 2025
1 Month active

Languages Used

Java

Technical Skills

API DevelopmentBackend DevelopmentData EngineeringDate and Time FormattingExpression LanguageJava

wazuh/wazuh-indexer

Jun 2025 Jun 2025
1 Month active

Languages Used

Gradle

Technical Skills

Build AutomationTesting

opensearch-project/security

Feb 2026 Feb 2026
1 Month active

Languages Used

Groovy

Technical Skills

Gradlebuild automationsoftware development