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PROFILE

Nncluzu

Over 19 months, contributed to OpenRailAssociation/osrd by building and refining complex front-end features focused on operational studies, simulation workflows, and data visualization. Delivered reusable React components, implemented robust state management with Redux, and enhanced UI/UX through modular architecture and dynamic styling using TypeScript and SCSS. Introduced role-based access control, feature flags, and inline editing to improve security, configurability, and user efficiency. Addressed edge cases in scheduling, chart rendering, and data integrity, while maintaining testability with Jest and Playwright. The work emphasized maintainability, clear commit discipline, and alignment with evolving business requirements, supporting reliable, scalable, and user-focused rail operations software.

Overall Statistics

Feature vs Bugs

82%Features

Repository Contributions

106Total
Bugs
7
Commits
106
Features
32
Lines of code
13,571
Activity Months19

Your Network

93 people

Work History

July 2026

1 Commits • 1 Features

Jul 1, 2026

July 2026 monthly summary focusing on OpenRailAssociation/osrd: - Key feature delivered: Implemented a feature flag system to toggle experimental features (e.g., 'linkings') in user preferences, updated the user settings UI to manage flags, and integrated flag checks into the SpaceTimeChartToolbar to control visibility of new features. - Minor/reported bugs: No major bugs reported in this scope; work centered on feature flag groundwork and UI integration to enable safer feature rollouts. - Overall impact: Enables controlled feature experimentation and safer deployments in user-facing features, reducing risk when introducing experimental capabilities and accelerating iteration via targeted rollouts. - Technologies/skills demonstrated: Frontend feature flags, UI/UX updates for settings, integration with existing toolbars, clean commit-focused changes, frontend code quality and maintainability.

June 2026

9 Commits • 3 Features

Jun 1, 2026

June 2026 monthly performance summary for OpenRailAssociation/osrd: Delivered a focused front-end upgrade across curve visualization, selection analytics, and chart polish, yielding clearer visuals, faster data inspection, and safer interpretation of rail-operations data. The work spans three coordinated streams: Curve Visual State System Overhaul, Selection Panel UX and Modes, and Space-Time Chart Visual Polish. Changes reduce visual ambiguity by removing hover as a state and treating hover as a rendering modifier; preserve exception siblings visibility in compliant mode; and align pause visuals for readability. A new counts helper and keyboard shortcuts accelerate exploratory analysis. Implementations across the repository demonstrate strong front-end architecture, state modeling, and UX engineering with clear business value in faster data-driven decisions and safer interpretation of complex curve data.

May 2026

16 Commits • 2 Features

May 1, 2026

May 2026: Delivered two high-impact features for OpenRailAssociation/osrd that strengthen UI consistency and state reliability. Refactored train selection to a new SelectedTrain shape with an explicit selection source, consolidating actions via updateSelectedTrain and removing the deprecated updateSelectedTrainId after full migration. Implemented a unified chart curve visual state system (CurveStyle) for STD and TOD charts, including hover, drag, active, and fade-out states, with baseline mappings and tests. These changes reduce edge cases, improve maintainability, and lay groundwork for future visual and interaction enhancements.

April 2026

2 Commits • 1 Features

Apr 1, 2026

April 2026 — OpenRailAssociation/osrd: Delivered front-end UX improvements for TimesStopsTable, focusing on faster row filtering and clearer handling of incompatible power restrictions. Implementations include highlighting all rows within an incompatible block, propagating the restriction code to the first row of each block for direct boundary edits, and aligning the warning banner with the actual blocks displayed. These changes reduce time spent identifying affected sections, minimize misconfigurations, and improve planning reliability for electrification workflows. Technologies demonstrated: front-end performance optimization, UI/UX refinement, and maintainable code updates with clear commit messages.

March 2026

6 Commits • 2 Features

Mar 1, 2026

March 2026 — OpenRailAssociation/osrd: Focused on reliable time handling and data visibility to improve scheduling accuracy and decision support. Delivered two cohesive feature sets: Time Handling Improvements and Simulation Results Visibility Improvement, with targeted fixes to edge cases and value display when simulations fail.

February 2026

6 Commits • 1 Features

Feb 1, 2026

February 2026 (OpenRailAssociation/osrd) focused on stabilizing the user experience around scheduling workflows, delivering an inline editing UX for Times & Stops, and hardening duration calculations and path updates. Key work included stabilizing TimesStopsTable visuals during loading, enabling real-time/optimistic updates for editable times and stops, and refining the path update logic for schedule items. These changes reduce UI flicker, improve data accuracy, and speed up editing cycles, contributing to faster, more reliable planning decisions for operators and planners.

January 2026

1 Commits

Jan 1, 2026

January 2026: Focused on stabilizing and correcting data presentation in the Train Simulation Times Stops Table. Delivered a targeted front-end fix to the operational index display for operational points, preventing misalignment in the path display and improving data integrity for simulation results. Implemented via a single commit and aligned with the new timeStopTable data model to reduce regression risk and support reliable decision-making for rail operations.

December 2025

2 Commits • 1 Features

Dec 1, 2025

December 2025 monthly summary focused on delivering the timetable rollout with a controlled feature flag, UI and translation updates, and building a resilient data-driven Times & Stops table using TanStack Table. Structural groundwork laid for maintainability and future enhancements.

November 2025

3 Commits • 2 Features

Nov 1, 2025

November 2025: Delivered frontend enhancements for the OpenRailAssociation/osrd project, focusing on data visibility and user experience in operational studies. Implemented client-side filtering for operational points and refined simulation report rendering, and added a resizable BoardWrapper height to support flexible UI.

October 2025

2 Commits • 1 Features

Oct 1, 2025

In 2025-10, OpenRailAssociation/osrd focused on improving UI resilience and testing support for invalid pathfinding scenarios. Delivered frontend enhancements that enable clearer visualization and interaction when pathfinding data is unavailable, directly reducing operator confusion and accelerating edge-case validation. The work aligns frontend visuals with backend state for more robust schedules and quicker issue resolution.

August 2025

5 Commits • 2 Features

Aug 1, 2025

Performance summary for August 2025 (OpenRailAssociation/osrd). Focused on delivering user-centric frontend improvements to simulation results visualization, improving control over waypoint visibility and aligning UI with product mockups. No major bugs were reported in the provided data; the team delivered polished UI components with maintainable styling and clear change traceability. These enhancements improve data comprehension, configurability, and operator efficiency when analyzing simulation results, supporting faster decision-making and reduced training time.

July 2025

19 Commits • 3 Features

Jul 1, 2025

In July 2025, the frontend delivered a major UI refactor for timetable management and several visibility improvements in data visualization and QA readiness. The TimetableBoardWrapper now centralizes timetable item management, unifying add/import, train selection, export, deletion, details, and round-trips under a BoardWrapper-driven UI, with a new MenuButton for anchored menus. This significantly reduced UI fragmentation and improved maintainability, enabling faster feature delivery and more consistent UX across the timetable workflows. Additionally, chart rendering for single-point data paths was enhanced with a visible marker and labeled backgrounds for readability, and interaction support was extended with picking for single-point paths. The Operational Studies UI gained an optional footer in side panels, improving visual structure and content organization for left/right panels. Quality and testability improvements were earned through e2e test fixes and the introduction of data-testid attributes to improve testability and QA reliability. Overall, these efforts strengthen the product’s reliability, UX, and development velocity while delivering clear business value through streamlined workflows and more robust data visualization.

June 2025

1 Commits • 1 Features

Jun 1, 2025

June 2025 monthly summary for OpenRailAssociation/osrd. Key features delivered: BoardWrapper UI component introduced to standardize board-like content rendering with header and body, basic styling, and a kebab menu icon placeholder for future actions. It also includes conditional rendering via the visible prop to control display. Major bugs fixed: none reported this month. Overall impact: improved UI consistency across board-style interfaces, enabling faster feature development and easier maintenance for board-related views. Technologies/skills demonstrated: front-end component design in React, modular UI architecture, conditional rendering, and initial UI styling; commit-driven development for traceability.

May 2025

18 Commits • 4 Features

May 1, 2025

May 2025 — OpenRailAssociation/osrd: Delivered a set of front-end UI enhancements for Operational Studies V2, plus infrastructure management improvements and code quality initiatives. Key outcomes include improved scenario management, a responsive and accessible UI, robust board visualization, and more stable test infrastructure. These changes reduce user friction, enable faster scenario iteration, and improve deployment reliability.

April 2025

2 Commits • 1 Features

Apr 1, 2025

April 2025 (Month: 2025-04) – OpenRailAssociation/osrd delivered targeted reliability and UX improvements focused on persistence behavior and scenario navigation. Key changes reduced runtime errors, stabilized localStorage handling, and enhanced user workflows in the Scenario view.

January 2025

7 Commits • 3 Features

Jan 1, 2025

January 2025 monthly summary for OpenRailAssociation/osrd focused on frontend architecture improvements, UX stability, and security/access control enhancements. Delivered a modular Map component, UX stability fixes for simulations, automatic warning visibility, stricter access control for operational point search, and reliable animation/event handling. These efforts improved maintainability, data integrity, and user awareness while enabling faster iteration for developers.

December 2024

3 Commits • 1 Features

Dec 1, 2024

December 2024 monthly summary for OpenRailAssociation/osrd: Implemented secure, dynamic, profile-based filtering for operational points on the front-end by leveraging a new DPY-MAS data source. Transitioned from hardcoded filters to a dynamic, role-based mechanism to improve security and relevance. Introduced a data mapping layer for CI/CH OPs and adjusted the filtering logic to evaluate DPY-MAS points within requests. This work enhances user-specific data exposure, aligns with access policies, and sets the foundation for scalable RBAC-based filtering.

November 2024

2 Commits • 2 Features

Nov 1, 2024

November 2024 (2024-11) monthly summary for OpenRailAssociation/osrd: Front-end improvements focused on making simulation results clearer and labels more concise, with emphasis on business value through faster interpretation and reduced cognitive load. No major bug fixes reported in this period. Demonstrates solid front-end craftsmanship, attention to UX, and effective collaboration within the repository.

October 2024

1 Commits • 1 Features

Oct 1, 2024

October 2024 monthly summary for OpenRailAssociation/osrd: Delivered Role-Based Access Control (RBAC) in the UI, introducing role-aware UI behavior by disabling elements and restricting interactions based on user roles. Implemented new UI components and updated existing ones to ensure only authorized users can perform specific actions, enhancing security and user experience. No major bugs fixed this month. Overall impact: strengthens security posture, clarifies access boundaries, and provides groundwork for scalable authorization. Technologies and skills demonstrated: frontend development, component design, UI/UX considerations, and code refactoring with a focus on secure access control.

Activity

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Quality Metrics

Correctness90.4%
Maintainability86.6%
Architecture84.2%
Performance83.8%
AI Usage27.8%

Skills & Technologies

Programming Languages

CSSJSONJavaScriptReactSCSSSVGTypeScript

Technical Skills

API IntegrationCSSCanvas APIChart LibrariesComponent ArchitectureComponent DesignComponent DevelopmentComponent RefactoringData VisualizationEnd-to-End TestingFront End DevelopmentFront-end DevelopmentFrontend DevelopmentJavaScriptJest

Repositories Contributed To

1 repo

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

OpenRailAssociation/osrd

Oct 2024 Jul 2026
19 Months active

Languages Used

JavaScriptSCSSTypeScriptCSSReactSVGJSON

Technical Skills

ReactReduxfront end developmentrole-based access controlFront End DevelopmentTypeScript