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Tomasz Ciecierski

PROFILE

Tomasz Ciecierski

Tomasz Ciecierski engineered advanced security and automation features for the Zacqary/kibana repository, focusing on Endpoint Detection and Response workflows, access control, and AI-driven SOC integrations. He developed robust API endpoints, automated onboarding scripts, and enhanced UI components using TypeScript, JavaScript, and React. His work included implementing feature flag management, schema validation, and test automation to ensure reliability and scalability. By refactoring authorization logic and integrating with Microsoft Defender and CrowdStrike, Tomasz improved incident response and data accuracy. His contributions demonstrated depth in backend and frontend development, delivering maintainable solutions that streamlined security operations and strengthened CI/CD pipelines.

Overall Statistics

Feature vs Bugs

70%Features

Repository Contributions

60Total
Bugs
11
Commits
60
Features
26
Lines of code
28,714
Activity Months13

Work History

October 2025

8 Commits • 4 Features

Oct 1, 2025

October 2025 monthly summary for Zacqary/kibana: Delivered core enhancements to EDR workflows with a focus on reliability, automation, and scalability. Implemented Endpoint Responder cancellation gating with feature flags and agent-type conditions; automated CrowdStrike Falcon onboarding; expanded Osquery workflows to support degraded agents with robust ID handling and refactor; established a dedicated Osquery testing environment provisioning script; and strengthened RunScript action validation and cancellation safeguards to prevent throttling and ensure robust lifecycle management.

September 2025

8 Commits • 5 Features

Sep 1, 2025

September 2025 monthly summary for Zacqary/kibana: Delivered key EDR-related features and reliability improvements with measurable business value. Highlights include Cancel response action for Microsoft Defender for Endpoint (API endpoints and UI), OpenAPI docs for MDE Runscript, expanded Analyzer data support for MDE and M365, CrowdStrike connector refactor for robust OAuth2 and RTR session handling, a critical fix to CrowdStrike agent policy query using @timestamp, and repository hygiene improvement by ignoring Claude artifacts. These efforts accelerated incident response, improved data accuracy, and reduced operational overhead in security workflows.

August 2025

2 Commits • 2 Features

Aug 1, 2025

2025-08 monthly summary for Zacqary/kibana: Delivered two major EDR workflow enhancements that improve usability, robustness, and error diagnostics. Enhanced Command Input and Selector Handling introduces pre-processing of pasted commands with argument values, refactored the argument selector wrapper to accept a command object and a request focus callback, and updated command history to clean selector argument states for a smoother console experience. Defender Endpoint Connector: Cancel Actions adds a cancel sub-action, defines the cancellation parameters, updates the connector type registration, and improves API error messaging for cases like ActiveRequestAlreadyExists. These changes improve reliability, reduce user friction, and strengthen Defender Endpoint integration.

July 2025

6 Commits • 1 Features

Jul 1, 2025

July 2025 (Zacqary/kibana) focused on stabilizing testing pipelines for Osquery and EDR workflows, boosting test reliability and CI determinism. Also introduced environment consistency improvements to ensure repeatable test runs across CI. Key outcomes include: deterministic test results via pinned test dependencies, significantly reduced flaky tests, and improved visibility into script fetch failures during EDR workflows.

June 2025

7 Commits • 3 Features

Jun 1, 2025

June 2025 focused on advancing EDR workflow automation, improving UI for script-based actions, strengthening access control, and streamlining testing infrastructure in Zacqary/kibana. Delivered key features enabling script-driven responses and Defender for Endpoint RunScript, fixed critical cases access visibility, and decoupled Osquery testing utilities to reduce dependencies and potential build times. Result: faster incident response, more reliable permissions, and a leaner, faster CI/Test cycle with measurable business value.

May 2025

4 Commits • 3 Features

May 1, 2025

May 2025: Implemented centralized access control for AI-enabled SOC pages by refactoring authorization logic with withSecurityRoutePageWrapper to drive per-user visibility based on permissions and subscription tiers. Initiated tier-based gating for the AI Lake tier affecting Visualize, Lens, and Maps, with an initial gating implementation that was subsequently reverted due to extensive dependencies; plan to pursue overrides within the AI_SOC plugin to restore functionality. Granted fleet (v1) read and all privileges to view integrations in siemV2 configurations for the AI Lake tier, improving fleet-level operational visibility. These changes strengthen security, licensing governance, and cross-team collaboration while laying foundations for future gating strategies and plugin-level overrides.

April 2025

10 Commits • 2 Features

Apr 1, 2025

April 2025 monthly performance summary highlighting major features delivered, bugs fixed, and overall impact for the Zacqary/kibana repository. Focused on business value through secure, scalable feature rollouts and more reliable security workflows.

March 2025

2 Commits • 1 Features

Mar 1, 2025

March 2025 — Kibana development for YulNaumenko/kibana: Delivered AI SOC product line integration, enabling configuration of the aiSoc product line and searchAiLake tier, mapped to PLI features to enable AI SOC recognition and configuration, with UI/navigation alignment for the new offering. Implemented via commits 81db1a127a14f48317cd28d3190aa7e48c5f374e and 7083930b8790d2fbf39b6112198ab64f6b7ca301.

February 2025

1 Commits

Feb 1, 2025

February 2025: Kibana (YulNaumenko/kibana) focused on tightening EDR Workflows with CrowdStrike integration. Implemented visibility alignment for CrowdStrike runscripts, ensuring runscripts are only displayed as supported for CrowdStrike agents within Endpoint Responder EDR Workflows and correcting visibility for other agents. Commit: 7bd5aa6fba0ff84638a76644559e85175311a4d6. This fix reduces misreporting, shortens triage cycles, and improves Defender integration reliability.

January 2025

4 Commits • 2 Features

Jan 1, 2025

2025-01 focused on delivering business-value enhancements to EDR workflows in the afharo/kibana repository. Implemented RunScript API exposure with an OpenAPI schema and UX improvements; stabilized the EDR testing environment by hardcoding the Vagrant box URL and tuning retry logic; and fixed JUnit report paths for Osquery to ensure accurate EDR workflow reporting. These efforts improve automation reliability, developer productivity, and reporting accuracy.

December 2024

6 Commits • 2 Features

Dec 1, 2024

December 2024 (tkajtoch/kibana) delivered substantial EDR workflow enhancements and reliability improvements. Key features include RunScript support for Endpoint Security EDR Workflows, expanded CrowdStrike RTR integration with new sub-actions and cloud scripts, and a stabilization of CI/test runs for EDR and MKI scenarios. A critical bug fix standardized endpoint hostnames to prevent routing/display errors, improving reliability in endpoints lists and actions.

November 2024

1 Commits • 1 Features

Nov 1, 2024

November 2024: Focused on delivering Real-Time Response (RTR) session initialization and management with CrowdStrike for tkajtoch/kibana. The work included API endpoints and schemas for starting RTR sessions, session management logic for refreshing and timeouts, and null-safety adjustments when retrieving agent information. These changes strengthen real-time incident response capabilities and improve robustness of the EDR integration.

October 2024

1 Commits

Oct 1, 2024

Month: 2024-10 — tkajtoch/kibana: Focused on test reliability and maintainability. Key effort: stabilizing EDR alerts end-to-end tests by replacing a fixed 500ms wait with waitForAlertsToPopulate(), reducing flakiness and improving CI stability.

Activity

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Quality Metrics

Correctness90.6%
Maintainability88.6%
Architecture85.4%
Performance80.4%
AI Usage25.0%

Skills & Technologies

Programming Languages

GoJavaJavaScriptTypeScriptYAMLtsx

Technical Skills

API DesignAPI DevelopmentAPI DocumentationAPI IntegrationAPI testingAccess ControlAuthenticationAuthorizationAutomationBack End DevelopmentBackend DevelopmentBackend Integration TestingBug FixCI/CDCloud Security

Repositories Contributed To

4 repos

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

Zacqary/kibana

Apr 2025 Oct 2025
7 Months active

Languages Used

JavaScriptTypeScriptYAMLtsxJava

Technical Skills

API DevelopmentBackend DevelopmentCode CleanupComponent DevelopmentConfiguration ManagementCypress

tkajtoch/kibana

Oct 2024 Dec 2024
3 Months active

Languages Used

JavaScriptTypeScriptYAML

Technical Skills

CypressEnd-to-End TestingJavaScript DevelopmentAPI IntegrationBackend DevelopmentSecurity Solutions

afharo/kibana

Jan 2025 Jan 2025
1 Month active

Languages Used

GoTypeScriptYAML

Technical Skills

API DevelopmentBackend DevelopmentBug FixCI/CDConfiguration ManagementEndpoint Security

YulNaumenko/kibana

Feb 2025 Mar 2025
2 Months active

Languages Used

TypeScriptJavaScriptYAML

Technical Skills

Front End DevelopmentTypeScriptAPI DevelopmentBackend DevelopmentConfiguration ManagementFrontend Development

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