Mugilan E.S.

Backend Engineer • Node.js • TypeScript • Distributed Systems

🚀 About Me

Backend Software Engineer with 3+ years of production experience designing and scaling API-driven systems using Node.js and TypeScript.

I build high-performance REST APIs, optimize database workloads, and design reliable backend architectures with caching, messaging, and cloud deployments.

Additionally, I’ve worked on production Flutter integrations and contributed to Spring Boot-based microservices during migration initiatives.

Contributed to backend architecture powering production applications with 10k+ downloads across deployments.

🧠 Technical Expertise

Backend (Primary)

• REST API design & modular architecture (controller–service–repository)
• JWT authentication, rate limiting & validation
• Stripe integration with secure webhook handling

Databases & Caching

• Query optimization (40% API response improvement)
• Schema design & indexing
• Redis caching & Pub/Sub

Messaging, Cloud & DevOps

• Event-driven workflows
• Background job processing
• Dockerized deployments
• CI/CD pipelines
• AWS EC2 & S3

Production Exposure

• Flutter: production app development + backend integration
• Spring Boot: contributed to microservices during migration initiatives

📌 Production Impact

• Improved API response time by 40% via query optimization & Redis caching
• Designed modular controller–service–repository architecture
• Built JWT-based authentication and rate-limiting mechanisms
• Implemented event-driven workflows using Redis Pub/Sub and Kafka
• Deployed Dockerized services on AWS with CI/CD pipelines

🎯 Engineering Philosophy

• Build systems that scale.
• Optimize before it becomes a bottleneck.
• Design for maintainability.
• Production-first thinking.