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Kerry Gallagher

PROFILE

Kerry Gallagher

Kerry Gallagher developed advanced streaming data processing and enrichment features for the Kibana repositories, focusing on the Streams and Streamlang modules. Kerry designed and implemented a domain-specific language (DSL) for stream pipelines, built reusable UI components for schema editing and Grok-based data enrichment, and migrated core APIs and user interfaces to leverage the new Streamlang DSL. Using TypeScript, React, and Elasticsearch, Kerry delivered robust backend logic for pipeline compilation and simulation, improved data governance through schema management tools, and enhanced user workflows with dynamic configuration and real-time previews. The work demonstrated deep integration, maintainability, and reliability across complex data processing scenarios.

Overall Statistics

Feature vs Bugs

73%Features

Repository Contributions

32Total
Bugs
7
Commits
32
Features
19
Lines of code
104,737
Activity Months12

Work History

October 2025

5 Commits • 1 Features

Oct 1, 2025

October 2025 highlights for viduni94/kibana: Focused on reliability, usability, and accuracy in the Streams suite. Delivered UI and data-plane hardening, improved simulation fidelity for complex pipelines, and expanded test coverage to ensure robust data filtering. These changes drive business value by reducing user friction, preventing misconfigurations, and enabling precise data processing workflows.

September 2025

4 Commits • 2 Features

Sep 1, 2025

September 2025 monthly summary for viduni94/kibana focusing on Streams UI and processing improvements. Delivered user-facing features to enhance pipeline modeling, correctness, and usability, while stabilizing tests to reduce maintenance overhead. The work emphasizes business value by enabling complex workflow definitions, improving simulation accuracy, and ensuring UI consistency with design specs.

August 2025

2 Commits • 1 Features

Aug 1, 2025

For 2025-08, delivered key Kibana streaming improvements and stabilized simulations, focusing on business value and developer experience. Key deliverables include migrating stream processing APIs and UI to Streamlang with an updated OpenAPI spec to standardize stream pipelines and actions, enabling faster integration and more robust real-time analytics. Also fixed a critical simulation routing bug in the schema editor to ensure simulations are written to the logs index and correctly rerouted to the target child stream, reducing errors in the development workflow.

July 2025

3 Commits • 1 Features

Jul 1, 2025

July 2025: Delivered the foundational Streamlang DSL for Kibana, establishing a reusable language and pipeline compiler to Elasticsearch ingestion. Implemented a dedicated Streamlang package in the shared platform, defined base/core types with schemas for conditions and processors, and added a transpiler that converts Streamlang pipelines into Elasticsearch ingest pipeline processors. This work lays the groundwork for streaming data processing capabilities and future integrations, enabling faster delivery of streaming features and improved data ingestion reliability. No major bugs fixed this month.

June 2025

1 Commits • 1 Features

Jun 1, 2025

June 2025 monthly summary for viduni94/kibana. Focused on delivering Grok UI enhancements for custom Grok pattern management within Streams Enrichment. These changes enable defining, managing, and applying custom Grok patterns with dynamic updates and subscriptions to pattern changes, ensuring patterns load, resolve, and are utilized correctly during data stream processing. The work improves data transformation accuracy, reduces pattern-management overhead, and accelerates enrichment rule iteration, aligning with business goals for more flexible and reliable streaming analytics.

May 2025

1 Commits • 1 Features

May 1, 2025

May 2025: Delivered Grok UI integration and enhancements for Kibana Streams UI, focusing on bringing Grok processing workflows into the Enrichment/Extraction page and polishing the user experience. This work also included refactoring Grok UI components for maintainability and introducing new UI elements for expression editing, read-only sample display, and input-based sample display. Improved management and live preview of Grok processors within Streams, enabling faster iteration and testing.

April 2025

2 Commits • 1 Features

Apr 1, 2025

Month: 2025-04 — Monthly summary for viduni94/kibana focusing on Kibana Streams improvements; delivered configuration-driven multi-processor support and fixed mapping parameter handling. Results include improved configurability, reliability, and extensibility of the Streams feature, enabling more flexible data processing pipelines and reduced runtime errors.

March 2025

1 Commits • 1 Features

Mar 1, 2025

Monthly summary for 2025-03 focusing on delivering a dedicated Grok UI component in the Kibana Streams module to streamline data enrichment. The feature provides a UI to input Grok expressions and sample data, real-time highlighting of matched parts, pattern suggestions, and outputs parsed data as structured JSON for easier downstream processing. This work enhances data quality and accelerates enrichment workflows within user pipelines for the Kibana repository (YulNaumenko/kibana).

February 2025

3 Commits • 2 Features

Feb 1, 2025

February 2025 monthly summary for KDKHD/kibana. Delivered two key features for Streams and Schema Editor, and resolved a critical maintenance issue, demonstrating solid business value and technical execution across frontend, backend, and data tooling.

January 2025

6 Commits • 5 Features

Jan 1, 2025

January 2025 (2025-01) Monthly summary for KDKHD/kibana focusing on delivering business value through UI/UX enhancements, stability improvements, and maintainable security models. Key accomplishments overview: - Strengthened data integrity by enforcing selective immutability on the root stream and aligning UI behavior with the model. - Enhanced usability of the partitioning workflow with drag-and-drop reordering of child streams. - Simplified security model for migrate log view settings by migrating authorization checks to rely on current user permissions. - Improved user experience and reliability of notifications during drag-and-drop flows. - Delivered a set of UX improvements in the Streams Schema Editor, including refined filters, linked callouts, field-type recommendations, date format options, a freeform toggle, and a refreshed data grid toolbar with an explicit refresh button. Overall impact: - Reduced risk of accidental changes to the root stream and improved governance around stream configurations. - Increased productivity for stream reconfiguration and schema editing through intuitive UI patterns. - Lowered security maintenance burden by centralizing permission evaluation to user context. - Improved reliability and consistency of user-facing notifications during interactive operations. - Demonstrated end-to-end improvement of developer experience and interface polish across core Kibana streams features. Technologies and skills demonstrated: - Frontend UX/Interaction design (drag-and-drop, data grid toolbar, toast lifecycle) - Immutable data model enforcement in the root stream - Authorization and security model simplification - Notifications system refactor and UX considerations - UX design and product thinking in Streams Schema Editor (filters, type hints, ECS recommendations, date handling)

December 2024

1 Commits • 1 Features

Dec 1, 2024

December 2024 monthly summary focusing on delivering the Streams Data Stream Schema Editor UI for Kibana (repo: KDKHD/kibana). The feature enables viewing, editing, and managing field mappings within data streams, includes simulation of schema changes and unmapped field detection, and enhances error reporting for a more robust user experience. The work aligns with governance and data quality goals and lays groundwork for streamlined schema management in data streams.

November 2024

3 Commits • 2 Features

Nov 1, 2024

Month 2024-11 Summary for KDKHD/kibana: Delivered two major features enhancing logs discovery, navigation, and search capabilities, and implemented a reusable component to extend search functionality across Logs and APM. Key achievements include migrating logs navigation from the deprecated Logs Explorer locator to the Discover locator with externalized log index configuration and refactoring getIndexPatterns into a common location to preserve functionality. Introduced a reusable Saved Search component wrapping the Saved Search Embeddable and integrated it into the Logs Overview flyout and APM Logs tab. Fixed Stack Monitoring logs links to ensure correct navigation and improved overall reliability. These efforts are supported by commits that capture the changes: 4e852ea041b63e3e3ad918ceee1bc3861dd1e519 (Fix Stack Monitoring logs links), 3e538d67c1378dc438d9f81cb603a7965026ac0c, and b0122f547dc916ee5ccaad369968738d92596eaf. Overall impact: faster, more reliable log discovery; configurable log indices; and reusable search components that reduce duplication and enable broader usage across Logs and APM. Technologies/skills demonstrated include Kibana Stack Monitoring, Discover locator, Saved Search Embeddable, external configuration, and refactoring for maintainability.

Activity

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Quality Metrics

Correctness88.8%
Maintainability87.6%
Architecture84.4%
Performance79.6%
AI Usage22.6%

Skills & Technologies

Programming Languages

JSONJavaScriptTSXTypeScriptYAMLtsx

Technical Skills

API DesignAPI DevelopmentAPI IntegrationBackend DevelopmentComponent DevelopmentConfiguration ManagementDSL ParsingData ProcessingData TransformationDomain-Specific Language (DSL)Drag and Drop ImplementationElasticsearchElasticsearch IntegrationElasticsearch Query Language (ESQL)Embeddable Framework

Repositories Contributed To

3 repos

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

viduni94/kibana

Apr 2025 Oct 2025
7 Months active

Languages Used

TypeScriptYAMLJavaScriptJSON

Technical Skills

API DesignBackend DevelopmentData ProcessingTypeScriptElasticsearchGrok

KDKHD/kibana

Nov 2024 Feb 2025
4 Months active

Languages Used

JSONJavaScriptTypeScriptTSXtsx

Technical Skills

Component DevelopmentEmbeddable FrameworkFront-end DevelopmentFrontend DevelopmentFull Stack DevelopmentJavaScript

YulNaumenko/kibana

Mar 2025 Mar 2025
1 Month active

Languages Used

JavaScriptTypeScript

Technical Skills

Frontend DevelopmentGrokMonaco EditorReactTypeScript

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