EXCEEDS logo
Exceeds
Duc Nguyen

PROFILE

Duc Nguyen

Over eight months, contributed to OpenRailAssociation/osrd and OpenCTI-Platform/connectors by building and refining features across frontend and backend systems. Delivered enhancements such as configurable enrichment workflows, UI improvements for consist path editing, and robust migration rollback mechanisms. Applied React, TypeScript, and SQL to standardize data models, enforce business rules, and streamline user interactions. Addressed bugs affecting data integrity and UI reliability, including edge-case handling in enrichment pipelines and regression fixes in pathfinding interfaces. Focused on maintainability through code refactoring, improved test coverage, and documentation updates, resulting in more predictable deployments and scalable feature delivery across both repositories.

Overall Statistics

Feature vs Bugs

53%Features

Repository Contributions

41Total
Bugs
7
Commits
41
Features
8
Lines of code
3,185
Activity Months8

Your Network

196 people

Same Organization

@emersion.fr
1

Work History

June 2026

11 Commits • 1 Features

Jun 1, 2026

June 2026 monthly summary for OpenRailAssociation/osrd: Delivered a safer downgrade path for migrations and completed a major front-end naming and data-model refactor to standardize operational points across the codebase, enabling more predictable maintenance and feature delivery. Key work included a safe downgrade mechanism for the 2026-05-22 migration, a comprehensive naming standardization (operational-point fields renamed to secondaryCode/mainCode) with associated UI/data-model refactors, and the rollout of the Consist Change feature across components. The work also encompassed cleanup and reliability improvements in the UI layer (removing a global debug flag to enable the feature widely) and improved error visibility by removing a catch in buildOpSuggestion. These changes collectively reduce risk, improve developer velocity, and deliver clearer, more scalable data modeling for future features.

May 2026

4 Commits • 2 Features

May 1, 2026

Monthly summary for 2026-05 (OpenRailAssociation/osrd): Delivered targeted frontend improvements focused on performance, clarity, and maintainability. The work enhances the pathfinding UI, aligns terminology with current pathfinding concepts, and cleans up styling for easier maintenance. These changes support faster user interactions, clearer developer guidance, and a smaller CSS footprint.

April 2026

14 Commits • 1 Features

Apr 1, 2026

April 2026 monthly summary for OpenRailAssociation/osrd. Delivered comprehensive Consist Change Feature Enhancements, stabilized UI behavior around consist changes, and strengthened testing and performance. Highlights include UI and simulation/report integration updates, enforcement of business rules around maxSpeed during consist changes, and multiple refactors to reduce render overhead and improve maintainability.

March 2026

3 Commits • 2 Features

Mar 1, 2026

March 2026 — OpenRailAssociation/osrd focused on strengthening configuration usability, UI reliability, and accessibility. Key work included: documentation enhancements for STDCM speed limit tags and loading gauge, a UI regression fix addressing stdcm loader and pathfinding status display, and multilingual/UI polish adding a French help section for Consist Change with CSS improvements. These changes improve onboarding, stabilize the UI, and broaden accessibility for French-speaking users.

February 2026

6 Commits • 1 Features

Feb 1, 2026

February 2026 delivered a focused frontend enhancement for Consist path editing in OpenRailAssociation/osrd, improving usability, reliability, and maintainability. Key work centered on the Consist path UI and editing workflow, with a minimum 30-minute stop enforcement and improved UI interactions.

February 2025

1 Commits • 1 Features

Feb 1, 2025

February 2025: OpenCTI-Platform/connectors delivered a configurable enhancement for URLScan enrichment. Introduced URLSCAN_ENRICHMENT_CREATE_INDICATOR (default true) to control whether STIX indicators are created for URLScan enrichment, enabling customers to align indicator generation with their workflows. This feature reduces indicator noise and improves automation flexibility. No major bugs fixed this month. Impact: improved configurability and workflow fidelity; skills demonstrated: configuration management, feature flag design, and STIX indicator handling. Tech highlights: commit 5d00dc00b96b836269762c29dfef0e3b52fc2d27.

January 2025

1 Commits

Jan 1, 2025

January 2025: Fixed the enrichment scope check bug in the OpenCTI-Platform/connectors, stabilizing the enrichment pipeline and improving data quality by ensuring enrichment triggers only for in-scope entities. The fix resolves a syntax issue in entity_in_scope and ensures the data argument is passed correctly to trigger enrichment as intended.

November 2024

1 Commits

Nov 1, 2024

November 2024 monthly summary focused on enhancing data reliability in the UrlScan enrichment workflow within OpenCTI-Platform/connectors. Delivered a targeted bug fix that standardizes ASN data handling, reducing downstream errors and improving downstream analytics and threat intel quality.

Activity

Loading activity data...

Quality Metrics

Correctness92.2%
Maintainability90.2%
Architecture89.2%
Performance89.8%
AI Usage24.8%

Skills & Technologies

Programming Languages

JSONJavaScriptMarkdownPythonSCSSSQLTypeScriptYAML

Technical Skills

API IntegrationBackend DevelopmentCSSCSS GridConfiguration ManagementFrontend DevelopmentPDF generationReactReduxSQLSecurity AutomationTypeScriptUI designdatabase migrationdocumentation

Repositories Contributed To

2 repos

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

OpenRailAssociation/osrd

Feb 2026 Jun 2026
5 Months active

Languages Used

JavaScriptSCSSTypeScriptJSONMarkdownSQL

Technical Skills

CSS GridReactReduxfront end developmentCSSUI design

OpenCTI-Platform/connectors

Nov 2024 Feb 2025
3 Months active

Languages Used

PythonYAML

Technical Skills

API IntegrationBackend DevelopmentConfiguration ManagementSecurity Automation