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Dhruv Sharma

Case Study

Real-Time Healthcare Logistics Platform

Developed a scalable platform coordinating 1,000+ vehicles for non-emergency medical transportation across the US.

IndustryHealthcare (NEMT)
RoleSenior Backend Engineer
DurationJan 2024 – Jan 2025
Scale5M+ requests/day, 50+ tenants
Real-Time Healthcare Logistics Platform
01
The Challenge
  • Legacy systems couldn't handle peak loads of 5+ million daily HTTPS requests.

  • Data updates across 50+ tenant databases were manual and error-prone.

  • No unified authentication system across services created security gaps.

02
My Role
Owned backend performance optimization, security infrastructure and reporting systems. Built CLI tools for large-scale data operations.
03
What I Built
  • CLI applications updating 20+ million records across tenant databases reliably.

  • Reverse proxy service improving security and load distribution.

  • Keycloak-based IAM with Single Sign-On across all services.

  • RabbitMQ event-driven architecture for CRON orchestration.

  • MongoDB reporting microservice providing real-time insights for 50+ tenants.

04
Impact
01

Infrastructure now handles 5+ million HTTPS requests per day during peak.

02

Reduced manual data operations from days to hours.

03

Unified authentication eliminated security gaps across services.

04

Minimized downtime by 15% through improved monitoring and alerting.

05
Tech Stack
Node.jsNest.jsPostgreSQLMongoDBRedisRabbitMQDockerRancherKeycloakGrafana
06
Key Learnings

"Batch operations require idempotency and resume capability for reliability."

"Multi-tenant systems benefit from strict data isolation at the infrastructure level."

"Event-driven architectures simplify complex coordination but require robust dead-letter handling."

Hello

Location

Remote / Worldwide

Local Time

00:00 AM UTC

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