TouK/nussknacker
Oct 2024 – Feb 2026
16 Months active
Languages Used
JavaScriptTypeScriptMarkdownCSSJavaScalaSVGtsx
Technical Skills
Cypress TestingFront End DevelopmentFront-end DevelopmentJavaScriptReactTypeScript
Dawid Poliszak
PROFILE
Dawid Poliszak
During their tenure on the TouK/nussknacker repository, Dariusz Lewandowski delivered robust front-end and testing infrastructure improvements, focusing on UI/UX enhancements, editor reliability, and developer productivity. He built features such as an AI assistant, advanced JSON editors, and dynamic testing workflows, integrating technologies like React, TypeScript, and Cypress. Dariusz addressed complex challenges in data validation, localization, and test automation, implementing solutions that improved error handling, reduced flakiness, and streamlined user interactions. His work demonstrated depth in component design, state management, and code refactoring, resulting in a more maintainable codebase and accelerating both feature delivery and quality assurance processes.
Overall Statistics
Feature vs Bugs
61%Features
Repository Contributions
122Total
Bugs
26
Commits
122
Features
40
Lines of code
34,179
Activity Months16
Your Network
39 peopleSame Organization
@touk.pl12
Filip MichalskiMember
gskrobiszMember
JulianWielgaMember
Łukasz BigorajskiMember
Łukasz JędrzejewskiMember
pielasMember
Mateusz SłabekMember
Marcin StelmaszczykMember
Pawel CzajkaMember
Shared Repositories
27
Arek BurdachMember
Łukasz CiołeckiMember
Mateusz KołodziejczykMember
Filip MichalskiMember
Filip MichalskiMember
gskrobiszMember
JulianWielgaMember
Kuba NowakowskiMember
Łukasz BigorajskiMember
Work History
February 2026
5 Commits • 3 Features
Feb 1, 2026February 2026 monthly summary for TouK/nussknacker focusing on delivering UX improvements and stabilizing the test infrastructure to drive faster debugging, improved test feedback, and more reliable releases. Delivered three major contribution areas: - Node Details UI Improvements: error indicator in node details tab, test-case error displays, and refined notification styles to accelerate issue triage. - Assertion Results UI Enhancements: node-level assertion results visualization with new UI components and tooltips, plus adjustments for clear feedback on test outcomes. - Testing Framework Improvements: test cleanup (removing it.only), updated snapshots, and mock default data generation from the backend to strengthen test stability and coverage. Additionally, maintained and synchronized snapshots across changes to keep UI Behavior consistent with expectations.
5 Commits • 3 Features
Feb 1, 2026February 2026 monthly summary for TouK/nussknacker focusing on delivering UX improvements and stabilizing the test infrastructure to drive faster debugging, improved test feedback, and more reliable releases. Delivered three major contribution areas: - Node Details UI Improvements: error indicator in node details tab, test-case error displays, and refined notification styles to accelerate issue triage. - Assertion Results UI Enhancements: node-level assertion results visualization with new UI components and tooltips, plus adjustments for clear feedback on test outcomes. - Testing Framework Improvements: test cleanup (removing it.only), updated snapshots, and mock default data generation from the backend to strengthen test stability and coverage. Additionally, maintained and synchronized snapshots across changes to keep UI Behavior consistent with expectations.
February 2026
January 2026
9 Commits • 1 Features
Jan 1, 2026January 2026 — TouK/nussknacker: Strengthened testing framework, improved test data/UI, and fixed key reliability issues. Delivered a comprehensive upgrade to the testing framework with richer assertions, mocks, data generation, and UI improvements; implemented safeguards to prevent stale test results; and hardened error handling for scenario renames to improve reliability and user guidance. Result: faster feedback loops, higher test coverage, and smoother developer/testing UX across the product.
January 2026
9 Commits • 1 Features
Jan 1, 2026January 2026 — TouK/nussknacker: Strengthened testing framework, improved test data/UI, and fixed key reliability issues. Delivered a comprehensive upgrade to the testing framework with richer assertions, mocks, data generation, and UI improvements; implemented safeguards to prevent stale test results; and hardened error handling for scenario renames to improve reliability and user guidance. Result: faster feedback loops, higher test coverage, and smoother developer/testing UX across the product.
December 2025
4 Commits • 2 Features
Dec 1, 2025Monthly summary for 2025-12: Delivered features and bug fixes for TouK/nussknacker with measurable business value. Implemented Node Details: Testing Tab with In-Context Test Execution, enabling run-now tests, a custom hook for table actions, improved loading states, and i18n support. Fixed data grid behavior to preserve native delete when no rows are selected, and enhanced UI/UX by removing empty rows and auto-deleting rows when sourceId values are removed. Updated snapshots to reflect UI changes and maintain QA reliability. These changes decrease manual testing time, improve data integrity, and enhance user experience for node-level testing and data management.
4 Commits • 2 Features
Dec 1, 2025Monthly summary for 2025-12: Delivered features and bug fixes for TouK/nussknacker with measurable business value. Implemented Node Details: Testing Tab with In-Context Test Execution, enabling run-now tests, a custom hook for table actions, improved loading states, and i18n support. Fixed data grid behavior to preserve native delete when no rows are selected, and enhanced UI/UX by removing empty rows and auto-deleting rows when sourceId values are removed. Updated snapshots to reflect UI changes and maintain QA reliability. These changes decrease manual testing time, improve data integrity, and enhance user experience for node-level testing and data management.
December 2025
October 2025
5 Commits • 1 Features
Oct 1, 2025October 2025 performance review: Delivered major UI and editor improvements in TouK/nussknacker, enhancing testing workflows and cross-editor reliability. Implemented responsive testing UI, richer test scenario descriptions, and improved handling of data-limit scenarios. Hardened SpEL/SpELTemplate/JSON editor transitions to prevent apostrophe-related issues and added test coverage. These changes reduce testing friction, improve data visibility, and reduce risk in template editing.
October 2025
5 Commits • 1 Features
Oct 1, 2025October 2025 performance review: Delivered major UI and editor improvements in TouK/nussknacker, enhancing testing workflows and cross-editor reliability. Implemented responsive testing UI, richer test scenario descriptions, and improved handling of data-limit scenarios. Hardened SpEL/SpELTemplate/JSON editor transitions to prevent apostrophe-related issues and added test coverage. These changes reduce testing friction, improve data visibility, and reduce risk in template editing.
September 2025
13 Commits • 3 Features
Sep 1, 2025September 2025: Focused on advancing testing data workflows, UI resilience, and developer productivity. Delivered robust testing data records management with enhanced test scenario capabilities, introduced a rich JSON Variables Editor with real-time backend validation, strengthened test reliability, and fixed critical defects impacting read-only user flows and editor interactions. These efforts drive faster iteration, higher data quality for tests, and more maintainable configuration of test scenarios in the TouK/nussknacker repository.
13 Commits • 3 Features
Sep 1, 2025September 2025: Focused on advancing testing data workflows, UI resilience, and developer productivity. Delivered robust testing data records management with enhanced test scenario capabilities, introduced a rich JSON Variables Editor with real-time backend validation, strengthened test reliability, and fixed critical defects impacting read-only user flows and editor interactions. These efforts drive faster iteration, higher data quality for tests, and more maintainable configuration of test scenarios in the TouK/nussknacker repository.
September 2025
August 2025
4 Commits • 1 Features
Aug 1, 2025Monthly summary for 2025-08 (TouK/nussknacker): Delivered reliability and UX improvements across UI testing, localization, and graph-design tooling. Key items completed in TouK/nussknacker include two bug fixes and a feature enhancement with direct business impact: - Test Suite Stability: Fixed flaky activities tests by replacing 'trigger("mouseover")' with 'realHover()' and 'click()' with 'realClick()', and adjusted the assertion target so the updated comment is reliably displayed. Commit: 84b4d8a1c6a5795b5daef686b74b04be773d9c11 (activities flaky tests fix (#8424)). - UI Autotranslation Fix for Loading Button Titles: Render the loading button title in a span to ensure proper translation during loading states. Commit: 05a51d05299212d19102f16371c1f513018fd2ed ([NU-2302] problem with GUI when UI autotranslated (#8445))). - Sticky Notes: Styling System and Stability Enhancements (Feature): Introduced a new styling system (basic vs advanced), integrated user settings to enable types, updated defaults (sizes, placeholders, colors), and stabilized sticky notes in the graph designer by refining resizing configuration and layout changes. Commits: 90366e25b1b73a99335301311313dd0ed4e08ae5, 0d9f5438faefedaf5757ee248b573b1b3a8d31f5.
August 2025
4 Commits • 1 Features
Aug 1, 2025Monthly summary for 2025-08 (TouK/nussknacker): Delivered reliability and UX improvements across UI testing, localization, and graph-design tooling. Key items completed in TouK/nussknacker include two bug fixes and a feature enhancement with direct business impact: - Test Suite Stability: Fixed flaky activities tests by replacing 'trigger("mouseover")' with 'realHover()' and 'click()' with 'realClick()', and adjusted the assertion target so the updated comment is reliably displayed. Commit: 84b4d8a1c6a5795b5daef686b74b04be773d9c11 (activities flaky tests fix (#8424)). - UI Autotranslation Fix for Loading Button Titles: Render the loading button title in a span to ensure proper translation during loading states. Commit: 05a51d05299212d19102f16371c1f513018fd2ed ([NU-2302] problem with GUI when UI autotranslated (#8445))). - Sticky Notes: Styling System and Stability Enhancements (Feature): Introduced a new styling system (basic vs advanced), integrated user settings to enable types, updated defaults (sizes, placeholders, colors), and stabilized sticky notes in the graph designer by refining resizing configuration and layout changes. Commits: 90366e25b1b73a99335301311313dd0ed4e08ae5, 0d9f5438faefedaf5757ee248b573b1b3a8d31f5.
July 2025
16 Commits • 3 Features
Jul 1, 2025July 2025: Delivered targeted UI/UX, template, and code editor improvements for TouK/nussknacker, driving usability, reliability, and developer productivity. Focused on enhancing template workflows, editor experience, and test stability to reduce rework and accelerate iteration cycles.
16 Commits • 3 Features
Jul 1, 2025July 2025: Delivered targeted UI/UX, template, and code editor improvements for TouK/nussknacker, driving usability, reliability, and developer productivity. Focused on enhancing template workflows, editor experience, and test stability to reduce rework and accelerate iteration cycles.
July 2025
June 2025
21 Commits • 5 Features
Jun 1, 2025June 2025: Focused on improving developer experience, reliability, and deployment control in TouK/nussknacker. Delivered navigation and breadcrumbs enhancements, introduced Quick Cancel Deploy, expanded ACE editor UX, and added JSON/SpEL snippets to accelerate rule authoring. Fixed stability issues and UI polish to reduce MTTR and improve usability across the platform.
June 2025
21 Commits • 5 Features
Jun 1, 2025June 2025: Focused on improving developer experience, reliability, and deployment control in TouK/nussknacker. Delivered navigation and breadcrumbs enhancements, introduced Quick Cancel Deploy, expanded ACE editor UX, and added JSON/SpEL snippets to accelerate rule authoring. Fixed stability issues and UI polish to reduce MTTR and improve usability across the platform.
May 2025
13 Commits • 6 Features
May 1, 2025May 2025 monthly summary for TouK/nussknacker. The period focused on delivering end-to-end designer enhancements, improving reliability of the save/deploy workflow, strengthening code quality, and enhancing testing workflows and UI responsiveness. Highlights include new Generate Endpoints and Sample Requests capabilities, a comprehensive linting pass, and UX refinements that preserve undo history and improve translation updates. Performance and developer experience benefited from loading indicators for dynamic parameters and a robust expression parameter update approach.
13 Commits • 6 Features
May 1, 2025May 2025 monthly summary for TouK/nussknacker. The period focused on delivering end-to-end designer enhancements, improving reliability of the save/deploy workflow, strengthening code quality, and enhancing testing workflows and UI responsiveness. Highlights include new Generate Endpoints and Sample Requests capabilities, a comprehensive linting pass, and UX refinements that preserve undo history and improve translation updates. Performance and developer experience benefited from loading indicators for dynamic parameters and a robust expression parameter update approach.
May 2025
April 2025
5 Commits • 5 Features
Apr 1, 2025April 2025 monthly summary for TouK/nussknacker: Delivered a targeted set of UX and robustness improvements to accelerate designer workflows, improve testing reliability, and simplify user configuration management. Key features delivered include: AI Assistant in Nussknacker designer with backend chat integration, UI panel and enable/disable toggle; Enhanced Testing UI/Workflow with a centralized TestingDialog via TestingContext; Styled Markdown Code Blocks with a CodeBlock component providing syntax highlighting and copy-to-clipboard; Filtering System hardening using predefined filters with context hooks and strong typing; Dynamic Default User Flags and Settings Persistence enabling global defaults with persistence of only modified settings. Business value: faster design iterations, reduced QA/maintenance effort, fewer misconfigurations, and easier user preference management. Technologies/skills demonstrated: React UI patterns, state management, TypeScript typings, UI/UX design for developer tools, code readability, and configuration management.
April 2025
5 Commits • 5 Features
Apr 1, 2025April 2025 monthly summary for TouK/nussknacker: Delivered a targeted set of UX and robustness improvements to accelerate designer workflows, improve testing reliability, and simplify user configuration management. Key features delivered include: AI Assistant in Nussknacker designer with backend chat integration, UI panel and enable/disable toggle; Enhanced Testing UI/Workflow with a centralized TestingDialog via TestingContext; Styled Markdown Code Blocks with a CodeBlock component providing syntax highlighting and copy-to-clipboard; Filtering System hardening using predefined filters with context hooks and strong typing; Dynamic Default User Flags and Settings Persistence enabling global defaults with persistence of only modified settings. Business value: faster design iterations, reduced QA/maintenance effort, fewer misconfigurations, and easier user preference management. Technologies/skills demonstrated: React UI patterns, state management, TypeScript typings, UI/UX design for developer tools, code readability, and configuration management.
March 2025
8 Commits • 5 Features
Mar 1, 2025March 2025: Delivered major front-end UX improvements and deployment enhancements for TouK/nussknacker. Key features include: (1) Enhanced Expression Editor UX and Language Guidance with tooltips, SpEL/default placeholders, and clearer guidance, including fixes for text concatenation and info text visibility; (2) Multi-editor support in Nussknacker designer for flexible parameter input and seamless editor switching; (3) Deploy processes dialog with advanced parameters and improved error handling (fallback boundary); (4) Documentation access enhancements in node modal with a standard Open in New icon and prominent link; (5) UI polish for EditableEditor margins and label alignment with updated snapshots. Major bugs fixed include UI text visibility issues and edge-case formatting within the expression editor. Impact: boosted developer productivity through faster and clearer expression authoring, more robust deployment workflows, and improved documentation access. This work also enhances UI consistency and reduces support friction for common editor-related issues. Technologies/skills demonstrated: front-end React-based UI work, SpEL integration and guidance, design-system-driven UI polish, snapshot testing, and resilient error handling.
8 Commits • 5 Features
Mar 1, 2025March 2025: Delivered major front-end UX improvements and deployment enhancements for TouK/nussknacker. Key features include: (1) Enhanced Expression Editor UX and Language Guidance with tooltips, SpEL/default placeholders, and clearer guidance, including fixes for text concatenation and info text visibility; (2) Multi-editor support in Nussknacker designer for flexible parameter input and seamless editor switching; (3) Deploy processes dialog with advanced parameters and improved error handling (fallback boundary); (4) Documentation access enhancements in node modal with a standard Open in New icon and prominent link; (5) UI polish for EditableEditor margins and label alignment with updated snapshots. Major bugs fixed include UI text visibility issues and edge-case formatting within the expression editor. Impact: boosted developer productivity through faster and clearer expression authoring, more robust deployment workflows, and improved documentation access. This work also enhances UI consistency and reduces support friction for common editor-related issues. Technologies/skills demonstrated: front-end React-based UI work, SpEL integration and guidance, design-system-driven UI polish, snapshot testing, and resilient error handling.
March 2025
February 2025
1 Commits
Feb 1, 2025February 2025 monthly summary for TouK/nussknacker focusing on stabilizing the test suite and maintaining overall product quality. Delivered targeted bug fixes to reduce Cypress fragment test flakiness and ensure deterministic CI runs, enabling faster feedback and more reliable releases.
February 2025
1 Commits
Feb 1, 2025February 2025 monthly summary for TouK/nussknacker focusing on stabilizing the test suite and maintaining overall product quality. Delivered targeted bug fixes to reduce Cypress fragment test flakiness and ensure deterministic CI runs, enabling faster feedback and more reliable releases.
January 2025
5 Commits • 1 Features
Jan 1, 2025January 2025 – TouK/nussknacker: Focused on user experience, reliability, and data integrity. Delivered UI enhancements for the Activity Panel, stabilized routing behavior, improved data integrity in process definitions, and increased CI stability by skipping flaky tests. These changes reduce friction for end users, increase system reliability, and accelerate feature delivery.
5 Commits • 1 Features
Jan 1, 2025January 2025 – TouK/nussknacker: Focused on user experience, reliability, and data integrity. Delivered UI enhancements for the Activity Panel, stabilized routing behavior, improved data integrity in process definitions, and increased CI stability by skipping flaky tests. These changes reduce friction for end users, increase system reliability, and accelerate feature delivery.
January 2025
December 2024
2 Commits
Dec 1, 2024December 2024 (TouK/nussknacker) focused on correctness of deployment status display for periodic deployments and stability of resizable UI windows. Delivered two bug fixes with direct business impact: (1) Deployment Status Indicator: Include SCHEDULED as Active for periodic deployments; commits b580599084c98ee2f3161d144bcee487720169fd; PR NU-1901 (#7283). (2) Resizable Window Stability: Fix Maximum Update Depth and manual resize handling; commits e5fbb42cb92290dbef5d4dab6e2de6a1e94d3f71; PR NU-1881 NU-1895 (#7254). These changes improve accuracy of deployment monitoring, reduce confusion in periodic scenarios, and enhance UX stability, lowering support tickets and increasing operator confidence. No new feature work this month; focus was on reliability, stability, and traceable bug fixes.
December 2024
2 Commits
Dec 1, 2024December 2024 (TouK/nussknacker) focused on correctness of deployment status display for periodic deployments and stability of resizable UI windows. Delivered two bug fixes with direct business impact: (1) Deployment Status Indicator: Include SCHEDULED as Active for periodic deployments; commits b580599084c98ee2f3161d144bcee487720169fd; PR NU-1901 (#7283). (2) Resizable Window Stability: Fix Maximum Update Depth and manual resize handling; commits e5fbb42cb92290dbef5d4dab6e2de6a1e94d3f71; PR NU-1881 NU-1895 (#7254). These changes improve accuracy of deployment monitoring, reduce confusion in periodic scenarios, and enhance UX stability, lowering support tickets and increasing operator confidence. No new feature work this month; focus was on reliability, stability, and traceable bug fixes.
November 2024
9 Commits • 3 Features
Nov 1, 2024November 2024 (TouK/nussknacker) monthly summary focusing on delivering UX enhancements, input validation improvements, and maintainability gains that drive faster onboarding, fewer misconfigurations, and more predictable editing workflows.
9 Commits • 3 Features
Nov 1, 2024November 2024 (TouK/nussknacker) monthly summary focusing on delivering UX enhancements, input validation improvements, and maintainability gains that drive faster onboarding, fewer misconfigurations, and more predictable editing workflows.
November 2024
October 2024
2 Commits • 1 Features
Oct 1, 2024Month: 2024-10 — TouK/nussknacker Summary: - Key features delivered: - Dialog Escape Key UX Enhancement: Improve Escape key behavior in dialogs. Pressing Escape inside an input within a dialog now removes focus from the input; a double Escape closes the dialog. Added tests to verify both behaviors, improving usability and modal interaction. - Major bugs fixed: - Fixed inconsistent Escape-key handling in dialogs, ensuring focus is cleared from inputs and dialogs close on double Escape, addressing user friction in modal interactions. - Overall impact and accomplishments: - Enhanced keyboard accessibility and user experience for modal dialogs, reduced friction for keyboard users, and expanded regression coverage with automated tests to prevent reoccurrence of the issue. - Technologies/skills demonstrated: - UI/UX refinement, test-driven development, regression testing, and keyboard accessibility improvements, with traceable commits for auditability.
October 2024
2 Commits • 1 Features
Oct 1, 2024Month: 2024-10 — TouK/nussknacker Summary: - Key features delivered: - Dialog Escape Key UX Enhancement: Improve Escape key behavior in dialogs. Pressing Escape inside an input within a dialog now removes focus from the input; a double Escape closes the dialog. Added tests to verify both behaviors, improving usability and modal interaction. - Major bugs fixed: - Fixed inconsistent Escape-key handling in dialogs, ensuring focus is cleared from inputs and dialogs close on double Escape, addressing user friction in modal interactions. - Overall impact and accomplishments: - Enhanced keyboard accessibility and user experience for modal dialogs, reduced friction for keyboard users, and expanded regression coverage with automated tests to prevent reoccurrence of the issue. - Technologies/skills demonstrated: - UI/UX refinement, test-driven development, regression testing, and keyboard accessibility improvements, with traceable commits for auditability.
Activity
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Quality Metrics
Correctness87.2%
Maintainability86.0%
Architecture82.0%
Performance80.4%
AI Usage28.2%
Skills & Technologies
Programming Languages
CSSHTMLJavaJavaScriptMarkdownSVGScalaTypeScripttsx
Technical Skills
API DevelopmentAPI IntegrationAPI InterceptionAce EditorBackend DevelopmentBug FixBug FixingCSSCSS-in-JSCode Editor IntegrationCode FormattingCode HighlightingCode RefactoringComponent DesignComponent Development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline