dagster-io/dagster
Nov 2024 – Feb 2026
16 Months active
Languages Used
CSSJavaScriptTypeScriptcsstsxGraphQLPythonYAML
Technical Skills
CSSFront End DevelopmentFront-end DevelopmentFrontend DevelopmentReactStorybook
Ben Gotow
PROFILE
Ben Gotow
Ben contributed extensively to the dagster-io/dagster repository, focusing on building robust, user-friendly front-end features and improving core UI architecture. He engineered enhancements such as a hierarchical asset catalog sidebar, unified asset node rendering, and scalable asset graph performance, addressing both usability and maintainability. Leveraging React, TypeScript, and ANTLR, Ben implemented advanced partition parsing, optimized data visualization, and introduced feature-flag-driven rollouts for new UI components. His work included refactoring legacy code, improving test coverage, and ensuring responsive, accessible interfaces. These efforts resulted in a more reliable, performant, and developer-friendly platform, supporting both open-source and enterprise-scale data orchestration needs.
Overall Statistics
Feature vs Bugs
74%Features
Repository Contributions
118Total
Bugs
17
Commits
118
Features
48
Lines of code
62,819
Activity Months16
Your Network
143 peopleShared Repositories
143
Work History
February 2026
6 Commits • 2 Features
Feb 1, 2026February 2026 focused on correctness and scale: fixed an UI rounding bug in partition status, delivered substantial front-end performance enhancements for the asset graph, and added safeguards to handle very large graphs. The changes improve accuracy, responsiveness, and scalability, enabling faster data exploration with reliable visuals and guided handling of large datasets.
6 Commits • 2 Features
Feb 1, 2026February 2026 focused on correctness and scale: fixed an UI rounding bug in partition status, delivered substantial front-end performance enhancements for the asset graph, and added safeguards to handle very large graphs. The changes improve accuracy, responsiveness, and scalability, enabling faster data exploration with reliable visuals and guided handling of large datasets.
February 2026
January 2026
7 Commits • 3 Features
Jan 1, 2026January 2026 monthly summary for dagster-io/dagster. Focused on delivering user-visible UI improvements, robust partition handling, and code quality refinements that collectively improve reliability, developer velocity, and business value.
January 2026
7 Commits • 3 Features
Jan 1, 2026January 2026 monthly summary for dagster-io/dagster. Focused on delivering user-visible UI improvements, robust partition handling, and code quality refinements that collectively improve reliability, developer velocity, and business value.
December 2025
6 Commits • 3 Features
Dec 1, 2025December 2025 monthly summary for the dagster repository focusing on feature consolidation, UI polish, and OSS-friendly health telemetry. Delivered a unified AssetNode path with 2025 rendering and health controls, stabilized OSS behavior by decoupling health from gating, and enhanced asset catalog and AI UI experiences.
6 Commits • 3 Features
Dec 1, 2025December 2025 monthly summary for the dagster repository focusing on feature consolidation, UI polish, and OSS-friendly health telemetry. Delivered a unified AssetNode path with 2025 rendering and health controls, stabilized OSS behavior by decoupling health from gating, and enhanced asset catalog and AI UI experiences.
December 2025
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary: Delivered a new HierarchicalSidebar UI for the Dagster asset catalog, enabling a content-agnostic, hierarchical view of asset keys and significantly improving navigation, organization, and asset selection. This work was delivered via a frontend PR [ui] Add a hierarchical sidebar to the asset catalog (#32775) including the commit 903d5c0d51b955e91a6bda19d9a367988eefe0ae. The change extracts reusable UI bits to implement HierarchicalSidebar and integrates it into the asset catalog, updating the selection with a key:prefix/* filter when nodes are selected. Manual testing and new tests for selection updating and tree building were added. The feature is prepared for staged rollout via a front-end flag (per changelog).
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary: Delivered a new HierarchicalSidebar UI for the Dagster asset catalog, enabling a content-agnostic, hierarchical view of asset keys and significantly improving navigation, organization, and asset selection. This work was delivered via a frontend PR [ui] Add a hierarchical sidebar to the asset catalog (#32775) including the commit 903d5c0d51b955e91a6bda19d9a367988eefe0ae. The change extracts reusable UI bits to implement HierarchicalSidebar and integrates it into the asset catalog, updating the selection with a key:prefix/* filter when nodes are selected. Manual testing and new tests for selection updating and tree building were added. The feature is prepared for staged rollout via a front-end flag (per changelog).
October 2025
5 Commits • 3 Features
Oct 1, 2025October 2025: Delivered four major front-end enhancements and fixes in dagster, focusing on reliability of the asset graph, navigation UX simplifications, maintainability improvements, and new cost-performance insights. The work emphasizes business value through more predictable UI behavior, streamlined workflows, and richer analytics.
5 Commits • 3 Features
Oct 1, 2025October 2025: Delivered four major front-end enhancements and fixes in dagster, focusing on reliability of the asset graph, navigation UX simplifications, maintainability improvements, and new cost-performance insights. The work emphasizes business value through more predictable UI behavior, streamlined workflows, and richer analytics.
October 2025
September 2025
4 Commits • 2 Features
Sep 1, 2025September 2025 summary: Delivered user-visible features and stability improvements across Dagster UI and Launchpad tooling, focusing on clarity, responsiveness, and consistent behavior. Implemented the Asset Job Alert Policies tab to surface policy visibility and align with Op Jobs; improved Launchpad YAML editing performance by debouncing the anyDefaultsToExpand calculation; fixed UI interactions including RunsFeedTable loading bar visibility by rendering the indeterminate loading bar outside the overflow container; and corrected the ranged partition input clear button to reset both the controlled value and the input state (and to hide when disabled). These changes reduce interaction friction, improve user confidence, and demonstrate end-to-end front-end quality and cross-team collaboration.
September 2025
4 Commits • 2 Features
Sep 1, 2025September 2025 summary: Delivered user-visible features and stability improvements across Dagster UI and Launchpad tooling, focusing on clarity, responsiveness, and consistent behavior. Implemented the Asset Job Alert Policies tab to surface policy visibility and align with Op Jobs; improved Launchpad YAML editing performance by debouncing the anyDefaultsToExpand calculation; fixed UI interactions including RunsFeedTable loading bar visibility by rendering the indeterminate loading bar outside the overflow container; and corrected the ranged partition input clear button to reset both the controlled value and the input state (and to hide when disabled). These changes reduce interaction friction, improve user confidence, and demonstrate end-to-end front-end quality and cross-team collaboration.
August 2025
6 Commits • 4 Features
Aug 1, 2025Month: 2025-08 — Frontend-focused quarter of improvements delivering stability, UX polish, and live data responsiveness in the Dagster UI. Goals achieved: reduce user friction in lineage/asset views, simplify run logs UX, preserve viewport state across layout changes, and ensure live data refresh triggers for asset views. These changes accelerate developer workflows, improve reliability, and provide clearer, faster insight into pipelines and assets.
6 Commits • 4 Features
Aug 1, 2025Month: 2025-08 — Frontend-focused quarter of improvements delivering stability, UX polish, and live data responsiveness in the Dagster UI. Goals achieved: reduce user friction in lineage/asset views, simplify run logs UX, preserve viewport state across layout changes, and ensure live data refresh triggers for asset views. These changes accelerate developer workflows, improve reliability, and provide clearer, faster insight into pipelines and assets.
August 2025
July 2025
6 Commits • 2 Features
Jul 1, 2025July 2025 performance highlights for the dagster project (dagster-io/dagster). Focused on front-end reliability, UX polish, and analytics visualization to improve data accuracy, user engagement, and business insight delivery. Delivered robust asset events filtering, UX navigation/time improvements, and billing chart data export utilities, enabling more actionable UI data.
July 2025
6 Commits • 2 Features
Jul 1, 2025July 2025 performance highlights for the dagster project (dagster-io/dagster). Focused on front-end reliability, UX polish, and analytics visualization to improve data accuracy, user engagement, and business insight delivery. Delivered robust asset events filtering, UX navigation/time improvements, and billing chart data export utilities, enabling more actionable UI data.
June 2025
5 Commits • 3 Features
Jun 1, 2025June 2025 performance summary for dagster-io/dagster. Key progress included foundational support for private packages in the Integration Marketplace, via a provider hook refactor and OSS version, plus editor UI groundwork and naming clarity (MarketplaceRoot to IntegrationsListRoot, MarketplaceHome to IntegrationsListPage). Billing UI was enhanced with UI component refinements to support billing designs. A UI rendering bug was fixed: team tags now render correctly in asset node tooltips, aided by migrating AssetNode from styled-components to CSS modules for maintainability. The faceted asset graph feature was enabled by default, preparing for broader rollout in a future release. These efforts improve onboarding and time-to-value for private integrations, streamline billing interactions, stabilize UI for ongoing development, and position the product for upcoming facets capabilities.
5 Commits • 3 Features
Jun 1, 2025June 2025 performance summary for dagster-io/dagster. Key progress included foundational support for private packages in the Integration Marketplace, via a provider hook refactor and OSS version, plus editor UI groundwork and naming clarity (MarketplaceRoot to IntegrationsListRoot, MarketplaceHome to IntegrationsListPage). Billing UI was enhanced with UI component refinements to support billing designs. A UI rendering bug was fixed: team tags now render correctly in asset node tooltips, aided by migrating AssetNode from styled-components to CSS modules for maintainability. The faceted asset graph feature was enabled by default, preparing for broader rollout in a future release. These efforts improve onboarding and time-to-value for private integrations, streamline billing interactions, stabilize UI for ongoing development, and position the product for upcoming facets capabilities.
June 2025
May 2025
4 Commits • 3 Features
May 1, 2025Concise monthly summary for 2025-05 for dagster-io/dagster. Focus on key features delivered, major bugs fixed, overall impact, and technologies demonstrated. Delivered four items across asset graph improvements, UI fix, terminology change, and marketplace UI enhancements. Impact includes improved data fetch/render performance, cross-browser stability, clearer UX, and feature-flag controlled rollouts.
May 2025
4 Commits • 3 Features
May 1, 2025Concise monthly summary for 2025-05 for dagster-io/dagster. Focus on key features delivered, major bugs fixed, overall impact, and technologies demonstrated. Delivered four items across asset graph improvements, UI fix, terminology change, and marketplace UI enhancements. Impact includes improved data fetch/render performance, cross-browser stability, clearer UX, and feature-flag controlled rollouts.
April 2025
13 Commits • 5 Features
Apr 1, 2025April 2025 monthly recap for dagster repository (dagster-io/dagster): delivered a suite of UI-focused enhancements and migrations that tightened UX, reduced technical debt, and improved data visibility across the platform. Key work spanned UI run tagging, UI-driven run table migration, asset graph UX improvements via the Observe UI flag, integrations marketplace UI polish, and internal UI refactors for type-safe feature flags. Key deliverables with commits: - UI Run Tagging Enhancements: allow overriding tags on re-execution and auto-tag runs launched from the UI (commits df72dd3f..., 0c798523...). - UI Run Table Migration and Legacy Removal: migrate to RunsFeedTableWithFilters, remove legacy RunTable and related props/flags (commits 61d0be12..., 699fcfd6..., d4c1ec0f...). - Asset Graph UI Enhancements (Observe UI): faceted graph designs, asset health observe flag, updated lineage/navigation, and conditional rendering of freshness rows (commits 9e0fd62c..., 7c639e59..., 21767535..., 35a6ecc9...). - Integration Marketplace UI Enhancements: clickable cards, persisted URL filters, action buttons for links, and improved markdown rendering (commits d0f28eba..., 74725ca1...). - Internal UI Refactors and Fixes: type-safe feature flag rows and docs rendering fixes (commits 2b31b07d..., bdf99096...). Impact: improved user productivity and data visibility, streamlined UI maintenance by removing legacy components, and established a foundation for scalable UI experiences with feature flags and Observe UI-driven behavior. Technologies/skills demonstrated: React/UI engineering, TypeScript typing and safety, feature flags, UI migrations and data-table upgrades, markdown rendering, and UI-testing readiness.
13 Commits • 5 Features
Apr 1, 2025April 2025 monthly recap for dagster repository (dagster-io/dagster): delivered a suite of UI-focused enhancements and migrations that tightened UX, reduced technical debt, and improved data visibility across the platform. Key work spanned UI run tagging, UI-driven run table migration, asset graph UX improvements via the Observe UI flag, integrations marketplace UI polish, and internal UI refactors for type-safe feature flags. Key deliverables with commits: - UI Run Tagging Enhancements: allow overriding tags on re-execution and auto-tag runs launched from the UI (commits df72dd3f..., 0c798523...). - UI Run Table Migration and Legacy Removal: migrate to RunsFeedTableWithFilters, remove legacy RunTable and related props/flags (commits 61d0be12..., 699fcfd6..., d4c1ec0f...). - Asset Graph UI Enhancements (Observe UI): faceted graph designs, asset health observe flag, updated lineage/navigation, and conditional rendering of freshness rows (commits 9e0fd62c..., 7c639e59..., 21767535..., 35a6ecc9...). - Integration Marketplace UI Enhancements: clickable cards, persisted URL filters, action buttons for links, and improved markdown rendering (commits d0f28eba..., 74725ca1...). - Internal UI Refactors and Fixes: type-safe feature flag rows and docs rendering fixes (commits 2b31b07d..., bdf99096...). Impact: improved user productivity and data visibility, streamlined UI maintenance by removing legacy components, and established a foundation for scalable UI experiences with feature flags and Observe UI-driven behavior. Technologies/skills demonstrated: React/UI engineering, TypeScript typing and safety, feature flags, UI migrations and data-table upgrades, markdown rendering, and UI-testing readiness.
April 2025
March 2025
17 Commits • 7 Features
Mar 1, 2025In March 2025, delivered a major UI-focused sprint across backfills, asset partitioning/observability, and overall UI polish, unlocking faster backfill resolution, clearer asset/materialization data, and improved operator efficiency. Major backfill and partitioning UI work are now consolidated, more observable, and easier to manage at scale.
March 2025
17 Commits • 7 Features
Mar 1, 2025In March 2025, delivered a major UI-focused sprint across backfills, asset partitioning/observability, and overall UI polish, unlocking faster backfill resolution, clearer asset/materialization data, and improved operator efficiency. Major backfill and partitioning UI work are now consolidated, more observable, and easier to manage at scale.
February 2025
12 Commits • 4 Features
Feb 1, 2025February 2025: Focused on cleaning the Dagster UI, strengthening asset graph correctness and performance, and elevating backfill UX. Delivered key UI cleanups, performance improvements, and robust bug fixes that reduce crashes and improve visibility of initialization and concurrency states, with measurable improvements in user experience and reliability across core workflows.
12 Commits • 4 Features
Feb 1, 2025February 2025: Focused on cleaning the Dagster UI, strengthening asset graph correctness and performance, and elevating backfill UX. Delivered key UI cleanups, performance improvements, and robust bug fixes that reduce crashes and improve visibility of initialization and concurrency states, with measurable improvements in user experience and reliability across core workflows.
February 2025
January 2025
9 Commits • 3 Features
Jan 1, 2025January 2025 monthly summary for the Dagster UI work focused on delivering high-value front-end improvements, stabilizing user experience, and strengthening operator efficiency. Key features delivered include a Backfills UI enhancement with a dedicated Backfills tab in the runs feed and a refactor of the runs endpoint to support RUNS, BACKFILLS, and ROOTS views (improving navigation into backfills and preserving context). Major bugs fixed include search filtering on asset partitions when health filters are enabled and ensuring the missing partitions warning displays correctly for hidden asset jobs. Additional improvements shipped to surface asset checks on the Automations page, unify visuals with existing utilities, and significantly enhance UI rendering stability and copy consistency. Overall, these changes reduce time-to-insight for operators, improve sensor configuration workflows, and deliver a smoother, more reliable UI. Technologies/skills demonstrated include React/UI work, endpoint refactoring to support multi-view runs queries, front-end performance optimizations (DOM sizing timing, direct textContent updates), and copy/terminology standardization across dialogs and banners.
January 2025
9 Commits • 3 Features
Jan 1, 2025January 2025 monthly summary for the Dagster UI work focused on delivering high-value front-end improvements, stabilizing user experience, and strengthening operator efficiency. Key features delivered include a Backfills UI enhancement with a dedicated Backfills tab in the runs feed and a refactor of the runs endpoint to support RUNS, BACKFILLS, and ROOTS views (improving navigation into backfills and preserving context). Major bugs fixed include search filtering on asset partitions when health filters are enabled and ensuring the missing partitions warning displays correctly for hidden asset jobs. Additional improvements shipped to surface asset checks on the Automations page, unify visuals with existing utilities, and significantly enhance UI rendering stability and copy consistency. Overall, these changes reduce time-to-insight for operators, improve sensor configuration workflows, and deliver a smoother, more reliable UI. Technologies/skills demonstrated include React/UI work, endpoint refactoring to support multi-view runs queries, front-end performance optimizations (DOM sizing timing, direct textContent updates), and copy/terminology standardization across dialogs and banners.
December 2024
3 Commits • 1 Features
Dec 1, 2024December 2024: Delivered UI-focused improvements for dagster-io/dagster. Key features: (1) Backfill Partition Display Bug fixed in the UI to render partition info only when partitions exist, removing false '0 partitions' tags; (2) Run Feed UI Enhancements introducing clickable sensor/schedule links with correct repo association and a multi-asset Target column with dynamic visibility and a 'more' indicator. Major bugs fixed: backfill partition display bug. Overall impact: improved accuracy of partition-related UI, improved navigation and visibility of assets in runs, reducing user confusion and support overhead. Technologies/skills demonstrated: frontend UI work with React-like patterns, cross-repo asset mapping, commit-driven development, and UI/UX improvements.
3 Commits • 1 Features
Dec 1, 2024December 2024: Delivered UI-focused improvements for dagster-io/dagster. Key features: (1) Backfill Partition Display Bug fixed in the UI to render partition info only when partitions exist, removing false '0 partitions' tags; (2) Run Feed UI Enhancements introducing clickable sensor/schedule links with correct repo association and a multi-asset Target column with dynamic visibility and a 'more' indicator. Major bugs fixed: backfill partition display bug. Overall impact: improved accuracy of partition-related UI, improved navigation and visibility of assets in runs, reducing user confusion and support overhead. Technologies/skills demonstrated: frontend UI work with React-like patterns, cross-repo asset mapping, commit-driven development, and UI/UX improvements.
December 2024
November 2024
14 Commits • 2 Features
Nov 1, 2024November 2024 highlights for dagster-io/dagster: Delivered targeted UI/UX improvements, key data correctness fixes, and a maintainability-focused refactor that collectively boost reliability, performance, and developer productivity. Business value came from more reliable logs and event data, faster and more predictable UI, and a cleaner codebase for future features.
November 2024
14 Commits • 2 Features
Nov 1, 2024November 2024 highlights for dagster-io/dagster: Delivered targeted UI/UX improvements, key data correctness fixes, and a maintainability-focused refactor that collectively boost reliability, performance, and developer productivity. Business value came from more reliable logs and event data, faster and more predictable UI, and a cleaner codebase for future features.
Activity
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Quality Metrics
Correctness91.8%
Maintainability88.4%
Architecture84.8%
Performance85.0%
AI Usage23.2%
Skills & Technologies
Programming Languages
CSSGraphQLHTMLJavaScriptMarkdownPythonReactTypeScriptYAMLcss
Technical Skills
ANTLRAPI IntegrationAlgorithm ImplementationBackend DevelopmentCSSCSS ModulesCSS StylingClipboard APICode CleanupCode RefactoringComponent DesignComponent DevelopmentComponent LibraryComponent RefactoringComponent Standardization
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline