mbta/screens
Dec 2024 – Nov 2025
12 Months active
Languages Used
CSSJavaScriptSCSSTypeScriptElixirSVGReacttsx
Technical Skills
CSSFront End DevelopmentReactBackend DevelopmentComponent DevelopmentFront-end Development
Robbie Sundstrom
PROFILE
Robbie Sundstrom
Over the past year, Ryan Sundstrom developed and maintained user-facing transit information features in the mbta/screens repository, focusing on reliability, accessibility, and maintainability. He delivered UI enhancements for elevator closures, on-bus displays, and subway status widgets, integrating backend Elixir services with React and TypeScript frontends. His work included API development, data filtering, and workflow automation, addressing edge cases in schedule and alert data to improve accuracy and user trust. Ryan also optimized CI/CD processes and project management integrations, ensuring traceable, testable code. His contributions demonstrated depth in both frontend and backend engineering, resulting in robust, maintainable transit applications.
Overall Statistics
Feature vs Bugs
71%Features
Repository Contributions
45Total
Bugs
7
Commits
45
Features
17
Lines of code
6,230
Activity Months12
Your Network
23 people
Work History
November 2025
2 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary for mbta/screens. Key deliveries include: (1) departure data retrieval optimization for ferry and commuter rail routes by replacing a blanket include_schedules with route_type-based filtering and introducing encode_params to improve parameter handling (commit a3f639780871e524b1928eb6a5cc55845c15b718). (2) alerts crash prevention on empty route/stop data with nil handling by guarding Enum.min with a default value and adding tests for nil scenarios in reconstructed_alerts (commit ab1ffb1519b2c1d77050784ff5bb5ec9650689d8). These changes enhance data relevance, reliability, and maintainability, while reducing unnecessary data processing and guarding against edge-case failures.
2 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary for mbta/screens. Key deliveries include: (1) departure data retrieval optimization for ferry and commuter rail routes by replacing a blanket include_schedules with route_type-based filtering and introducing encode_params to improve parameter handling (commit a3f639780871e524b1928eb6a5cc55845c15b718). (2) alerts crash prevention on empty route/stop data with nil handling by guarding Enum.min with a default value and adding tests for nil scenarios in reconstructed_alerts (commit ab1ffb1519b2c1d77050784ff5bb5ec9650689d8). These changes enhance data relevance, reliability, and maintainability, while reducing unnecessary data processing and guarding against edge-case failures.
November 2025
October 2025
6 Commits • 2 Features
Oct 1, 2025October 2025 monthly summary for mbta/screens: Focused on delivering user-facing enhancements for the Subway Status Widget, improving data accuracy, and simplifying maintenance. Key work included enhanced partial-closure reporting, platform-specific details, new line support, and terminology refinements; fixes to display logic and data references; and asset naming standardization to reduce future maintenance overhead. This work enhances reliability of real-time subway status, reduces user confusion, and improves onboarding for new contributors.
October 2025
6 Commits • 2 Features
Oct 1, 2025October 2025 monthly summary for mbta/screens: Focused on delivering user-facing enhancements for the Subway Status Widget, improving data accuracy, and simplifying maintenance. Key work included enhanced partial-closure reporting, platform-specific details, new line support, and terminology refinements; fixes to display logic and data references; and asset naming standardization to reduce future maintenance overhead. This work enhances reliability of real-time subway status, reduces user confusion, and improves onboarding for new contributors.
September 2025
1 Commits • 1 Features
Sep 1, 2025Monthly summary for 2025-09 (mbta/screens). Delivered an enhancement to Asana integration by attaching PRs to their corresponding Asana tickets on PR opened/edited events, and removed automatic movement of Asana tasks between development, review, and deployment states. This change tightens traceability between code changes and project management tasks, reduces manual ticket handling, and speeds up triage, review, and deployment coordination. Commit f23b19ac7cfbec9b56259d385395fadc379f9b46 documents the workflow update.
1 Commits • 1 Features
Sep 1, 2025Monthly summary for 2025-09 (mbta/screens). Delivered an enhancement to Asana integration by attaching PRs to their corresponding Asana tickets on PR opened/edited events, and removed automatic movement of Asana tasks between development, review, and deployment states. This change tightens traceability between code changes and project management tasks, reduces manual ticket handling, and speeds up triage, review, and deployment coordination. Commit f23b19ac7cfbec9b56259d385395fadc379f9b46 documents the workflow update.
September 2025
August 2025
2 Commits • 1 Features
Aug 1, 2025August 2025 — mbta/screens: Delivered CapeFlyer Route Visual Identity (dedicated rail icon in the route pill UI) and CapeFlyer ocean blue color across route pills, enabling quick visual identification and consistent branding. This work improves UX by reducing cognitive load for riders and establishes a scalable theming baseline for future UI components.
August 2025
2 Commits • 1 Features
Aug 1, 2025August 2025 — mbta/screens: Delivered CapeFlyer Route Visual Identity (dedicated rail icon in the route pill UI) and CapeFlyer ocean blue color across route pills, enabling quick visual identification and consistent branding. This work improves UX by reducing cognitive load for riders and establishes a scalable theming baseline for future UI components.
July 2025
2 Commits
Jul 1, 2025July 2025 for mbta/screens focused on stability and data correctness. No new user-facing features were shipped; two critical bug fixes were delivered that improve alert visibility and schedule accuracy. These changes enhance user trust, reduce confusion during service disruptions, and align UI with the underlying v3 API data.
2 Commits
Jul 1, 2025July 2025 for mbta/screens focused on stability and data correctness. No new user-facing features were shipped; two critical bug fixes were delivered that improve alert visibility and schedule accuracy. These changes enhance user trust, reduce confusion during service disruptions, and align UI with the underlying v3 API data.
July 2025
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 performance summary for mbta/screens: Delivered user-centric UI improvements and addressed data accuracy edge cases to strengthen service disruption visibility and overnight schedule reliability.
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 performance summary for mbta/screens: Delivered user-centric UI improvements and addressed data accuracy edge cases to strengthen service disruption visibility and overnight schedule reliability.
May 2025
6 Commits • 3 Features
May 1, 2025Month: 2025-05 — mbta/screens delivered targeted usability and reliability improvements, focusing on accessibility, data clarity, and codebase cleanliness. Key features were augmented with header-only behavior, subtitle-aware headers, and enhanced audio readout; robustness was increased for alert fetching; and deprecated screens were removed to streamline maintenance. Technologies and skills demonstrated include frontend component design, data formatting utilities, accessibility-conscious readouts, defensive coding, and thorough cleanup of deprecated assets.
6 Commits • 3 Features
May 1, 2025Month: 2025-05 — mbta/screens delivered targeted usability and reliability improvements, focusing on accessibility, data clarity, and codebase cleanliness. Key features were augmented with header-only behavior, subtitle-aware headers, and enhanced audio readout; robustness was increased for alert fetching; and deprecated screens were removed to streamline maintenance. Technologies and skills demonstrated include frontend component design, data formatting utilities, accessibility-conscious readouts, defensive coding, and thorough cleanup of deprecated assets.
May 2025
April 2025
6 Commits • 3 Features
Apr 1, 2025April 2025 monthly summary for mbta/screens: Delivered user-focused Hanover departure UI improvements, introduced No Data/No Connections messaging on the on-bus display, and improved developer experience by trimming Prettier logs. These changes enhance usability, reliability during data outages, and maintainability while delivering measurable business value in real-time transit information.
April 2025
6 Commits • 3 Features
Apr 1, 2025April 2025 monthly summary for mbta/screens: Delivered user-focused Hanover departure UI improvements, introduced No Data/No Connections messaging on the on-bus display, and improved developer experience by trimming Prettier logs. These changes enhance usability, reliability during data outages, and maintainability while delivering measurable business value in real-time transit information.
March 2025
2 Commits • 2 Features
Mar 1, 2025Month: 2025-03 | Focused on delivering user-facing UI widgets with clean backend integration and improved filtering to reduce noise in closures data. Two high-impact features shipped in mbta/screens, with a refactor of elevator alerts processing to improve relevance of reported closures.
2 Commits • 2 Features
Mar 1, 2025Month: 2025-03 | Focused on delivering user-facing UI widgets with clean backend integration and improved filtering to reduce noise in closures data. Two high-impact features shipped in mbta/screens, with a refactor of elevator alerts processing to improve relevance of reported closures.
March 2025
February 2025
5 Commits • 1 Features
Feb 1, 2025February 2025 — mbta/screens: Delivered the On-Bus Screen Experience (initial release) with styling, routing, and backend configuration; added placeholder admin UI content and URL-parameter-driven testing for route, stop, trip IDs, and vehicle_id to accelerate QA and enable deterministic demos. Fixed ScreenData API by initializing default query_params to prevent runtime errors in the self_refresh_runner. Improved UI resilience with fallback logic for long route names in pills. These efforts reduce deployment risk, improve onboard user experience, and streamline data-loading workflows.
February 2025
5 Commits • 1 Features
Feb 1, 2025February 2025 — mbta/screens: Delivered the On-Bus Screen Experience (initial release) with styling, routing, and backend configuration; added placeholder admin UI content and URL-parameter-driven testing for route, stop, trip IDs, and vehicle_id to accelerate QA and enable deterministic demos. Fixed ScreenData API by initializing default query_params to prevent runtime errors in the self_refresh_runner. Improved UI resilience with fallback logic for long route names in pills. These efforts reduce deployment risk, improve onboard user experience, and streamline data-loading workflows.
January 2025
6 Commits • 1 Features
Jan 1, 2025January 2025: mbta/screens delivered Elevator UI/UX enhancements across elevator screens, focusing on clarity, reliability, and alignment with MBTA endpoints. Key changes include header layout improvements, conditional arrow visibility and sizing, updated links, new assets, and robust fallbacks to improve user experience during data outages. The work reduces ambiguity in navigation and improves accessibility and consistency across devices, delivering measurable business value through improved user satisfaction and reduced support queries related to elevator screens.
6 Commits • 1 Features
Jan 1, 2025January 2025: mbta/screens delivered Elevator UI/UX enhancements across elevator screens, focusing on clarity, reliability, and alignment with MBTA endpoints. Key changes include header layout improvements, conditional arrow visibility and sizing, updated links, new assets, and robust fallbacks to improve user experience during data outages. The work reduces ambiguity in navigation and improves accessibility and consistency across devices, delivering measurable business value through improved user satisfaction and reduced support queries related to elevator screens.
January 2025
December 2024
5 Commits • 1 Features
Dec 1, 2024December 2024: Delivered cohesive UI polish and reliability improvements for the Elevator Closures List in mbta/screens. Consolidated visual refinements and bug fixes to deliver a consistent user experience: adjusted divider padding, ensured top-line rendering across all pages, fixed paging indicator spacing, and applied pluralization logic for multiple elevators. Introduced a first-row-on-page concept via a new CSS class/prop to standardize rendering across pages, and performed code cleanup. Quality improvements included Prettier formatting and lint fixes to raise code quality and accelerate reviews. Business impact: reduces visual defects, improves operator UX for monitoring elevator closures, and enables faster QA cycles and easier future maintenance. Technologies/skills demonstrated: frontend UI styling, CSS/class-based rendering, code quality tooling (Prettier/lint), and commit-driven incremental delivery.
December 2024
5 Commits • 1 Features
Dec 1, 2024December 2024: Delivered cohesive UI polish and reliability improvements for the Elevator Closures List in mbta/screens. Consolidated visual refinements and bug fixes to deliver a consistent user experience: adjusted divider padding, ensured top-line rendering across all pages, fixed paging indicator spacing, and applied pluralization logic for multiple elevators. Introduced a first-row-on-page concept via a new CSS class/prop to standardize rendering across pages, and performed code cleanup. Quality improvements included Prettier formatting and lint fixes to raise code quality and accelerate reviews. Business impact: reduces visual defects, improves operator UX for monitoring elevator closures, and enables faster QA cycles and easier future maintenance. Technologies/skills demonstrated: frontend UI styling, CSS/class-based rendering, code quality tooling (Prettier/lint), and commit-driven incremental delivery.
Activity
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Quality Metrics
Correctness92.2%
Maintainability90.4%
Architecture86.6%
Performance87.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
CSSElixirHTMLJavaScriptReactSCSSSVGTypeScriptYAMLex
Technical Skills
API DevelopmentAPI IntegrationBack-end DevelopmentBackend DevelopmentBug FixBug FixingCI/CDCSSComponent DevelopmentData FilteringData ParsingData SerializationData SortingElixirElixir Development
Repositories Contributed To
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