My Journey

From Backend Development to DevOps to System Design

Backend Development

Foundation Phase

Building scalable server-side applications and APIs

Key Skills & Achievements

  • Mastered Node.js, Express, and NestJS frameworks
  • Built RESTful APIs and GraphQL endpoints
  • Learned Golang for high-performance services
  • Database design with PostgreSQL, MongoDB, and Redis
  • Implemented authentication, authorization, and security best practices

DevOps & Infrastructure

Scaling Phase

CI/CD, containerization, and cloud infrastructure

Key Skills & Achievements

  • Containerized applications with Docker and Docker Compose
  • Orchestrated services using Kubernetes
  • Built CI/CD pipelines with Jenkins and GitHub Actions
  • Implemented monitoring with Prometheus and Grafana
  • Set up Nginx reverse proxy and load balancing
  • Automated deployments with ArgoCD GitOps

System Design

Architecture Phase

Architecting distributed systems and microservices

Key Skills & Achievements

  • Designed microservices architecture with service isolation
  • Implemented event-driven systems with Kafka
  • Built API gateways for unified client access
  • Applied circuit breakers and retry mechanisms for resilience
  • Designed for horizontal scalability and high availability
  • Implemented caching strategies and database sharding

Current Focus

Continuing to deepen my expertise in distributed systems, exploring advanced patterns like CQRS and Event Sourcing, and building production-ready microservices that can scale to millions of users.

Developed by Varun Hotani
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