All Experience

Ruby on Rails

Scalable backend architecture for secure, high-performance applications

RubyRuby on RailsActiveRecordMySQLPostgreSQLRedisRESTful APIsGraphQLDevisePunditSidekiqDelayed JobAction CableWebSocketsRSpecFactoryBotRuboCopDockerAWS (EC2, RDS, S3)HerokuCI/CD

Ruby on Rails

Overview

For over 6 years, I’ve architected and maintained enterprise-level Ruby on Rails backends powering React and React Native applications. My work has primarily focused on healthcare and research platforms where security, performance, and long-term maintainability are critical.

Rails has allowed me to rapidly develop structured systems while ensuring scalability, clean architecture, and production-grade reliability.

Problems Solved with Rails

1. Scalable Backend Architecture

I design backend systems using MVC architecture and service-oriented design principles to:

  • Keep business logic organized and testable
  • Prevent technical debt as complexity grows
  • Support hundreds of concurrent users
  • Enable safe, rapid feature iteration

By applying SOLID principles and domain-driven structure, applications remain maintainable over time.

2. Secure Data Handling

In healthcare environments, data security is non-negotiable. I implemented:

  • Two-factor authentication (2FA)
  • Email verification workflows
  • Role-based authorization (Pundit)
  • Secure session management
  • CSRF, XSS, and SQL injection prevention
  • Encrypted credentials and secure headers

Ensuring sensitive data remains protected while preserving usability.

3. High-Performance APIs

I architected RESTful and GraphQL APIs to:

  • Serve web and mobile applications
  • Support API versioning
  • Implement token-based authentication (JWT/OAuth)
  • Optimize JSON serialization
  • Enforce rate limiting and CORS policies

These APIs provided stable contracts between frontend and backend systems.

4. Database & Performance Optimization

As systems scale, performance bottlenecks emerge. I addressed:

  • N+1 query elimination with eager loading
  • Indexing strategies for faster queries
  • Read replicas for high-read workloads
  • Query profiling and optimization
  • Redis-based caching strategies

These improvements significantly reduced latency and improved stability.

5. Asynchronous & Real-Time Systems

Modern applications require background and real-time capabilities. I built:

  • Background processing with Sidekiq and Delayed Job
  • Webhook architectures with retry logic
  • Real-time updates via Action Cable
  • Multi-layer caching strategies

Ensuring responsive user experiences without blocking core application flows.

Why Rails?

Rails provides convention-driven structure, strong security defaults, and rapid development capabilities — making it ideal for building scalable, secure backend systems with long-term sustainability.