Software Associate at Mappls, working on routing-engine internals, graph computation, ETA systems and backend services using C++, OSRM, Valhalla and Java.
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Work across OSRM MLD and Valhalla routing pipelines, including graph preprocessing, costing, path computation, snapping and API response generation.
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Designed route-refresh workflows that reuse a validated route structure while recalculating current duration and ETA without performing a complete reroute.
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Investigated and corrected consistency issues between route and matrix computations in an EV-routing pipeline by tracing data through extraction, customization, storage and query stages.
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Debugged routing-correctness problems involving access restrictions, alternative routes, multi-leg requests, graph directionality and request validation.
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Develop and debug C++ routing components where edge metadata, directionality and graph state must remain consistent across preprocessing and request-time execution.
A full-stack routing platform and multiplayer map game where users move along real road-network routes generated through OSRM-based routing APIs.
Architecture and capabilities
- Spring Boot REST backend
- PostgreSQL with Flyway migrations
- Redis-backed state and caching workflows
- JWT authentication and protected APIs
- Session lifecycle, route history and leaderboards
- WebSocket/STOMP multiplayer presence and room communication
- React and Leaflet map interface
- Docker-based development environment
- GitHub Actions CI
| Area | Technologies |
|---|---|
| Systems and algorithms | C++, Graph Algorithms, DSA |
| Routing | OSRM MLD, Valhalla, OpenStreetMap |
| Backend | Java, Spring Boot, REST APIs, PostgreSQL, Redis |
| Real-time systems | WebSockets, STOMP |
| Infrastructure | Docker, GitHub Actions, Maven, CMake, Linux |
| Frontend and maps | React, JavaScript, Leaflet |
Designing scalable backend systems, strengthening distributed-systems fundamentals and solving advanced graph and algorithmic problems.
- GitHub: halfdimension
- Email: harsh.mudgil2002@gmail.com
Building reliable routing and backend systems, one graph at a time.