In January 2026, delivered a feature to detect active Elastic Stack versions via the internal Release API to stabilize OOM testing for Prebuilt Rules, improving test reliability and aligning validation with the correct Stack version. Work centered on elastic/integrations with a focused change set that reduces version-mismatch risks during prebuilt rules testing.

November 2025: Delivered a robust OOM stress testing pipeline integrated into the Buildkite CI for the security_detection_engine within elastic/integrations. Implemented a dedicated per-package script and wired it into the PR Buildkite flow to trigger the Prebuilt Rules OOM testing pipeline, enabling end-to-end verification against OOM scenarios across supported Kibana minor versions (9.2.2-SNAPSHOT and 9.3.0-SNAPSHOT). This reduces risk of memory-related regressions in production, improves CI reliability, and accelerates feedback for memory-sensitive changes. The work lays groundwork for faster CI cycles via an elastic-package Docker path and aligns with cross-team efforts in Threat Research and Detection Engineering. It partially addresses Kibana issue 188090 and highlights cleanup and resource management improvements for cloud resources in CI pipelines.

October 2025 (Zacqary/kibana) - Focused on reliability and debugging improvements for Security Solution prebuilt rules. Key deliverables include: (1) improved error reporting for prebuilt rules bootstrap, enabling clearer visibility of bootstrap failures in Elastic Cloud; (2) stabilization of test execution by ensuring Fleet setup completion before prebuilt rules installation, reducing race conditions and test flakiness. Business value: faster issue diagnosis for deployment failures, more stable CI runs, and more dependable prebuilt rules delivery. Demonstrated skills in security workflows, Fleet orchestration, test stability engineering, and CI reliability.

September 2025: Strengthened the Testing infrastructure for Security Solution prebuilt rules in the Kibana repository. Consolidated and unskipped flaky tests, expanded coverage for rule customization and import scenarios, and migrated UI tests to integration tests to improve reliability and coverage. These improvements reduce risk in prebuilt rule releases and accelerate feedback for security rule validation.

Aug 2025: Delivered targeted reliability improvements and test infrastructure enhancements for Zacqary/kibana Security Solution. Key features delivered: 1) Security Solution Rule Management Test Stability and UI Integration — improved test reliability for Rule Management UI and related tests by introducing wait mechanisms and timeout adjustments to handle asynchronous validations. 2) Fleet-related Test Infrastructure and Mock Data for Security Solution — strengthened testing infra with programmatic mock Fleet packages, ensured Fleet setup completes before tests, and used mock prebuilt rules to avoid external dependencies. 3) Organize Generated Integration API Test Client Output — reorganized the generated integration API test client output directory for better maintainability. Major bug fixed: Serverless RBAC Test Adjustment — corrected e2e RBAC test to use the appropriate user role in Serverless environments. Overall impact: reduced test flakiness, stabilized CI feedback loops, and improved maintainability and reliability of security-related test suites, enabling faster validation of feature readiness. Technologies/skills demonstrated: Cypress/Jest-based E2E tests, frontend/UI test automation, test infrastructure programming, mock data provisioning, and integration of prebuilt rules.

July 2025 (Zacqary/kibana) focused on hardening the prebuilt rules lifecycle and expanding end-to-end coverage. Delivered stability improvements to test infrastructure, upgraded upgrade/notification testing, and clarified API usage for bulk actions. These changes increase release confidence, reduce flaky test cycles, and provide clearer guidance for operational workflows across prebuilt rules.

June 2025 (Zacqary/kibana) focused on reliability improvements and testing coverage for Security Solution MKI rules. Key outcomes include stabilizing the MKI prebuilt rules CI pipeline to ensure correct test execution after code changes, fixing rule schedule time unit parsing to support 'day' units, and expanding prebuilt rules testing coverage through consolidated documentation and test plans for API customization, exporting, upgrading, and importing. These efforts improved test reliability, reduced post-release issues, and clarified testing scope for future rule updates.

May 2025 monthly summary for Zacqary/kibana focused on Security Solution test improvements. Delivered frontend integration tests for the Rule Upgrade Preview (Flyout) to validate field changes, customized fields, conflicts, and various diff outcomes; and refactored the prebuilt rules integration tests to improve structure, maintainability, and test coverage. These changes strengthen upgrade validation, reduce regression risk, and advance test maturity for critical security workflows.

April 2025 monthly summary for Zacqary/kibana focusing on reliability and security-workflow improvements. This month centered on stabilizing the preview installation flow for security rules by deduplicating saved object rule entries, ensuring accurate counts and preventing installation failures in older security_detection_engine versions.

March 2025 monthly summary for YulNaumenko/kibana focusing on Security Solution Prebuilt Rules Customization and Upgrade Workflow Enhancements. Delivered bulk upgrade of prebuilt rules with solvable conflicts, improved conflict handling, enforcement of proper upgrade behavior for rule fields, license-based UI behavior, and UI messaging improvements to empower safe and effective rule upgrades.

February 2025 — Security Solution work on Kibana focused on improving rule upgrade UX and strengthening test reliability across repositories. Key outcomes include a targeted UX enhancement for rule upgrades, expanded test plans and integration tests for prebuilt rules, and stabilization of Cypress test runs.

January 2025 performance summary for afharo/kibana. Delivered key Security Solution enhancements and stability fixes with measurable business value: improved Threat Match rule editing UX, strengthened rule scheduling robustness, and set the stage for future rule lifecycle improvements through better component reusability and type-safety. These changes reduce risk during rule creation and upgrades, improve UI consistency with saved objects, and enhance overall reliability for security analysts.

December 2024 (tkajtoch/kibana) focused on reducing friction in rule creation and strengthening upgrade reliability for Elastic Security rules. Key deliveries included enabling saving of EQL and ES|QL queries with non-critical validation warnings and upgrading upgrade UI for better visibility. Specific improvements: - Key features delivered: - Save EQL and ES|QL queries with non-critical validation warnings, refactoring confirmation modal logic to separate warnings from critical errors and enabling reuse across multiple rule creation/editing forms. (Commit: b0c7a8ce4f0ea528a7f96246e7f2a46d17f61d3f) - Major bugs fixed: - Threat Match rule upgrades no longer blocked by field conversions; ensured proper conversion of fields like threat_query for seamless Elastic prebuilt rule upgrades. (Commit: b9addc2f23d676ae2bcb8c979dece80fb0a88554) - Other improvements: - Added a Modified badge in the Rule Upgrade flyout to indicate edited fields after initial installation, improving upgrade decision-making. (Commit: 87079ff226b616d3b11370f7307f5c7448001b28) Overall impact and accomplishments: - Reduced friction in rule authoring, enabling more consistent rule creation with acceptable warnings. - Increased upgrade reliability and visibility, supporting smoother migrations of Elastic prebuilt rules. - Strengthened developer experience with reusable UI components and clearer upgrade indicators. Technologies/skills demonstrated: - React/TypeScript UI refactors and modal logic separation (warnings vs. errors) - Validation handling and non-blocking save flows - Field conversion logic and upgrade pipelines for Elastic Security rules - Working with EQL/ES|QL rule flows and Kibana rule management

Month: 2024-11 — tkajtoch/kibana. Key work focused on delivering essential UI improvements for rule creation, strengthening upgrade reliability, and stabilizing the test suite, with clear business value in faster rule authoring and safer upgrades.