OpenRailAssociation/osrd
Sep 2025 – Jul 2026
10 Months active
Languages Used
RustSQLTypeScriptYAMLJSONPythonJavaScriptKotlin
Technical Skills
API DesignAPI DevelopmentBackend DevelopmentData ModelingDatabase DesignDatabase Integration
aschantraine
PROFILE
Aschantraine
Worked on the OpenRailAssociation/osrd repository, delivering end-to-end features across backend, frontend, and data layers to improve rail operations, data integrity, and developer experience. Built robust API endpoints and data models using Rust, TypeScript, and PostgreSQL, focusing on level crossing infrastructure, timetable reliability, and search journey environments. Enhanced system reliability through database migrations, CLI tooling, and comprehensive test automation. Improved localization and frontend usability with React and YAML configuration, while refining API documentation and consistency with OpenAPI. The work emphasized maintainable code, precise scheduling, and safer data lifecycles, supporting both operational accuracy and smoother cross-team collaboration.
Overall Statistics
Feature vs Bugs
87%Features
Repository Contributions
95Total
Bugs
6
Commits
95
Features
41
Lines of code
13,175
Activity Months10
Your Network
93 peopleShared Repositories
93
Achraf MohyeddineMember
acquigioMember
adityabhatkar23Member
Alex RollandMember
@0304407cMember
Alexis JacomyMember
alexandrergjMember
Alice K.Member
Alice KhoudliMember
Work History
July 2026
6 Commits • 4 Features
Jul 1, 2026July 2026 — Focused on delivering a robust Search Journey Environment and improving API consistency, data safety, and operability for OpenRailAssociation/osrd. Major outcomes include: new database tables and Rust models for search journey environments with a latest-environment retrieval API; safety improvements in timetable garbage collection to protect environment-linked timetables; CLI commands to configure and display the environment; partial path query support for Train Schedule Path API; and a refactor of round-trip APIs to standardize naming and docs. These changes deliver business value by enabling safer data lifecycles, clearer configuration, faster integrations, and more flexible data access.
6 Commits • 4 Features
Jul 1, 2026July 2026 — Focused on delivering a robust Search Journey Environment and improving API consistency, data safety, and operability for OpenRailAssociation/osrd. Major outcomes include: new database tables and Rust models for search journey environments with a latest-environment retrieval API; safety improvements in timetable garbage collection to protect environment-linked timetables; CLI commands to configure and display the environment; partial path query support for Train Schedule Path API; and a refactor of round-trip APIs to standardize naming and docs. These changes deliver business value by enabling safer data lifecycles, clearer configuration, faster integrations, and more flexible data access.
July 2026
June 2026
9 Commits • 2 Features
Jun 1, 2026June 2026 monthly summary for OpenRailAssociation/osrd focused on strengthening hourly timetable reliability and frontend robustness. Delivered end-to-end enhancements to hourly timetable conflict detection, migrated conflict logic to a dedicated module, added strict validation, and elevated frontend type safety and code quality to reduce runtime errors and improve maintainability.
June 2026
9 Commits • 2 Features
Jun 1, 2026June 2026 monthly summary for OpenRailAssociation/osrd focused on strengthening hourly timetable reliability and frontend robustness. Delivered end-to-end enhancements to hourly timetable conflict detection, migrated conflict logic to a dedicated module, added strict validation, and elevated frontend type safety and code quality to reduce runtime errors and improve maintainability.
May 2026
2 Commits • 2 Features
May 1, 2026May 2026 delivered two end-to-end feature improvements for OpenRailAssociation/osrd that enhance time handling precision, data flexibility, and system reliability. Key changes include a Train Schedule Time Representation Upgrade (datetime to millisecond offset) with a database migration to bigint, API/ORM updates, fixture/test and frontend adjustments, and an Operational Points Data Structure Flexibility change (make RelatedOperationalPoint nullable) to improve robustness and error handling. No major defects were reported; these changes reduce risk and pave the way for future enhancements. Business impact includes more precise scheduling across systems, improved data integrity, and smoother cross-team collaboration. Technologies demonstrated include PostgreSQL migrations, data modeling with nullable fields and type aliases, backend/API/ORM updates, Python integration tests, and frontend changes.
2 Commits • 2 Features
May 1, 2026May 2026 delivered two end-to-end feature improvements for OpenRailAssociation/osrd that enhance time handling precision, data flexibility, and system reliability. Key changes include a Train Schedule Time Representation Upgrade (datetime to millisecond offset) with a database migration to bigint, API/ORM updates, fixture/test and frontend adjustments, and an Operational Points Data Structure Flexibility change (make RelatedOperationalPoint nullable) to improve robustness and error handling. No major defects were reported; these changes reduce risk and pave the way for future enhancements. Business impact includes more precise scheduling across systems, improved data integrity, and smoother cross-team collaboration. Technologies demonstrated include PostgreSQL migrations, data modeling with nullable fields and type aliases, backend/API/ORM updates, Python integration tests, and frontend changes.
May 2026
April 2026
9 Commits • 5 Features
Apr 1, 2026OpenRailAssociation/osrd — April 2026: Delivered targeted API, frontend, and UI improvements while stabilizing operations. Outcomes include API surface simplification by removing trains_count; frontend dependency upgrades improving travel time calculations and stability; Train Schedule UI/UX enhancements for readability and safer deletions; added signal icons with a dedicated /icons endpoint; and enhanced visibility of train counts during package removals. Major bug fix: Scenario Search SQL queries corrected to reference the current table structure, eliminating server errors. Business value: reduced server errors, cleaner API, faster frontend, and clearer user interactions.
April 2026
9 Commits • 5 Features
Apr 1, 2026OpenRailAssociation/osrd — April 2026: Delivered targeted API, frontend, and UI improvements while stabilizing operations. Outcomes include API surface simplification by removing trains_count; frontend dependency upgrades improving travel time calculations and stability; Train Schedule UI/UX enhancements for readability and safer deletions; added signal icons with a dedicated /icons endpoint; and enhanced visibility of train counts during package removals. Major bug fix: Scenario Search SQL queries corrected to reference the current table structure, eliminating server errors. Business value: reduced server errors, cleaner API, faster frontend, and clearer user interactions.
February 2026
5 Commits • 3 Features
Feb 1, 2026February 2026 (OpenRailAssociation/osrd): Delivered enhancements to testing reliability for auto-fixes, refined API behavior, and improved codebase readability. The changes strengthen testing coverage, ensure API semantics align with REST expectations, and elevate overall code quality for faster delivery and reduced risk on production deployments.
5 Commits • 3 Features
Feb 1, 2026February 2026 (OpenRailAssociation/osrd): Delivered enhancements to testing reliability for auto-fixes, refined API behavior, and improved codebase readability. The changes strengthen testing coverage, ensure API semantics align with REST expectations, and elevate overall code quality for faster delivery and reduced risk on production deployments.
February 2026
January 2026
24 Commits • 14 Features
Jan 1, 2026Month 2026-01 — OpenRailAssociation/osrd: concise achievements focused on Level Crossings enhancements, auto-fix improvements, test infrastructure, admin API, and localization. Delivered business-value improvements with safer, more reliable level crossing operations and a more maintainable codebase.
January 2026
24 Commits • 14 Features
Jan 1, 2026Month 2026-01 — OpenRailAssociation/osrd: concise achievements focused on Level Crossings enhancements, auto-fix improvements, test infrastructure, admin API, and localization. Delivered business-value improvements with safer, more reliable level crossing operations and a more maintainable codebase.
December 2025
13 Commits • 2 Features
Dec 1, 2025December 2025 performance summary for OpenRailAssociation/osrd highlighting end-to-end Level Crossing work, localization improvements, and data-layer maturation that enable safer, more reliable rail operations and faster occupancy analytics.
13 Commits • 2 Features
Dec 1, 2025December 2025 performance summary for OpenRailAssociation/osrd highlighting end-to-end Level Crossing work, localization improvements, and data-layer maturation that enable safer, more reliable rail operations and faster occupancy analytics.
December 2025
November 2025
8 Commits • 2 Features
Nov 1, 2025November 2025 monthly summary for OpenRailAssociation/osrd. Key focus: data hygiene improvements and API maintainability through targeted feature work and API refactoring. Delivered critical tooling and a comprehensive OpenAPI namespacing refactor across core modules, driving reliability and developer productivity.
November 2025
8 Commits • 2 Features
Nov 1, 2025November 2025 monthly summary for OpenRailAssociation/osrd. Key focus: data hygiene improvements and API maintainability through targeted feature work and API refactoring. Delivered critical tooling and a comprehensive OpenAPI namespacing refactor across core modules, driving reliability and developer productivity.
October 2025
14 Commits • 4 Features
Oct 1, 2025In October 2025, delivered a cohesive set of API and data-model enhancements for OpenRailAssociation/osrd, focusing on editoast features, API consistency, timetable reliability, and data-layer simplification. These changes improved developer experience, client integration, and operational accuracy while reinforcing robust API contracts and frontend readiness.
14 Commits • 4 Features
Oct 1, 2025In October 2025, delivered a cohesive set of API and data-model enhancements for OpenRailAssociation/osrd, focusing on editoast features, API consistency, timetable reliability, and data-layer simplification. These changes improved developer experience, client integration, and operational accuracy while reinforcing robust API contracts and frontend readiness.
October 2025
September 2025
5 Commits • 3 Features
Sep 1, 20252025-09 Performance highlights: Delivered major data-model and API enhancements for OpenRailAssociation/osrd, enabling richer scenario notes, user-group discovery, and improved path planning analytics. Key features delivered include the Macro Notes System (new macro_note table and retrieval API), API Enhancements (groups endpoint and nested-train structure for similar_trains), and Editoast Simulation (path_item_positions in summaries). No major bugs fixed this month. These changes improve data organization, developer experience, and business value by enabling more contextual notes, streamlined access control group data, clearer train data modeling, and enhanced pathfinding analytics.
September 2025
5 Commits • 3 Features
Sep 1, 20252025-09 Performance highlights: Delivered major data-model and API enhancements for OpenRailAssociation/osrd, enabling richer scenario notes, user-group discovery, and improved path planning analytics. Key features delivered include the Macro Notes System (new macro_note table and retrieval API), API Enhancements (groups endpoint and nested-train structure for similar_trains), and Editoast Simulation (path_item_positions in summaries). No major bugs fixed this month. These changes improve data organization, developer experience, and business value by enabling more contextual notes, streamlined access control group data, clearer train data modeling, and enhanced pathfinding analytics.
Activity
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Quality Metrics
Correctness96.2%
Maintainability92.0%
Architecture92.8%
Performance89.2%
AI Usage28.8%
Skills & Technologies
Programming Languages
JSONJavaScriptKotlinPythonRustSQLTypeScriptYAML
Technical Skills
API DesignAPI DevelopmentAPI DocumentationAPI designAPI developmentAxumBackend DevelopmentCLI DevelopmentCode CorrectionData ModelingDatabase DesignDatabase IntegrationDatabase ManagementDiesel ORMFrontend Development
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