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Łukasz Myśliwiec

PROFILE

Łukasz Myśliwiec

Worked on the arthur-engine repository over four months, delivering 14 features and addressing key bugs to enhance data workflows and traceability. Focused on building robust UI and analytics capabilities using React and TypeScript, including comprehensive tracing interfaces, dataset extraction tools, and real-time evaluation dashboards. Integrated cloud providers like Bedrock and Vertex AI, modernized tool schemas, and improved form validation for more reliable user input. Enhanced transforms management with pagination and mapping UIs, and instrumented analytics tracking for deeper product insights. Prioritized iterative UI/UX improvements, state management, and cross-team collaboration to drive faster time-to-insight and more reliable data-driven decisions.

Overall Statistics

Feature vs Bugs

88%Features

Repository Contributions

31Total
Bugs
2
Commits
31
Features
14
Lines of code
31,074
Activity Months4

Your Network

18 people

Shared Repositories

18

Work History

February 2026

5 Commits • 3 Features

Feb 1, 2026

February 2026 — Performance highlights for arthur-engine focused on accelerating data transformation workflows, improving traceability, and strengthening analytics. Key UX and data capabilities were delivered: transforms management enhancements with pagination and a UI for transforming/matching dataset columns to relevant variables; evaluation inputs view in the results table to support test-case analyses; dataset analytics tracking to capture user interactions for better product insights; and a bug fix ensuring tabs remain visible when data is available to avoid onboarding disruptions. These changes collectively improve time-to-insight, reduce misconfiguration risk, and provide richer data for product and business decisions. Technologies/skills demonstrated include front-end UI enhancements (React/TypeScript), pagination and mapping UI, analytics instrumentation, and robust bug fixing for improved user onboarding.

January 2026

13 Commits • 6 Features

Jan 1, 2026

January 2026 monthly summary for arthur-engine (arthur-ai/arthur-engine). Focused on delivering key features, improving observability, and strengthening reliability to drive business value. Highlights include expanding experimentation capabilities, broader cloud-provider integration, and UI/observability enhancements, with solid validation and UI improvements.

December 2025

5 Commits • 3 Features

Dec 1, 2025

December 2025 (month: 2025-12) monthly summary for arthur-engine focused on delivering features that improve traceability, model governance, and tooling integration, while laying groundwork for faster debugging and more reliable evaluations. The team completed three major capabilities with clear business value and technical depth.

November 2025

8 Commits • 2 Features

Nov 1, 2025

November 2025 — arthur-engine (arthur-ai/arthur-engine): Delivered major improvements to tracing observability and dataset workflows, driving faster insights and data-driven decisions. Key features delivered enhanced tracing UI with rich filtering, time-range selection, token count and cost tooltips, pagination, improved session/span details, and annotations, along with date formatting fixes to ensure reliable displays. Also rolled out dataset extraction and management from traces, enabling users to add selected spans to a dataset via a new drawer, configurator, and preview table, plus UX improvements for dataset configuration and API keys management with a span-selection search feature. Fixes included addressing tracing feedback and a timestamp forcing bug to improve data accuracy. Overall impact includes improved traceability, faster time-to-insight, and more robust data workflows. Technologies/skills demonstrated include React/TypeScript frontend, UI/UX enhancements, state management, dataset management UX, and cross-team collaboration.

Activity

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Quality Metrics

Correctness85.8%
Maintainability81.2%
Architecture81.2%
Performance81.2%
AI Usage38.8%

Skills & Technologies

Programming Languages

JavaScriptTypeScript

Technical Skills

API IntegrationAPI integrationData VisualizationFront End DevelopmentFrontend DevelopmentFull Stack DevelopmentMaterial-UIReactState ManagementTypeScriptUI DevelopmentUI designUI/UX designanalytics integrationdata visualization

Repositories Contributed To

1 repo

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

arthur-ai/arthur-engine

Nov 2025 Feb 2026
4 Months active

Languages Used

JavaScriptTypeScript

Technical Skills

API IntegrationAPI integrationFront End DevelopmentFull Stack DevelopmentReactState Management