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Achievement: QuickdrawAchievement: Pair Extraordinairex3Achievement: YOLOAchievement: Pull Sharkx2

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sundarmachani/README.md

Hello, I'm Sundar Machani!

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👨‍💻 About Me

Software Engineer (MS CS, Illinois Institute of Technology) with production experience building scalable, secure, and high-reliability systems.

I specialize in Java/Spring Boot microservices, REST APIs, and backend performance optimization, while delivering end-to-end features with React.

I’ve worked on systems processing 1M+ monthly transactions and supporting 200+ active contributors, focusing on reliability, security, and observability.

💡 What I Work On

  • ⚙️ Backend Architecture: Microservices, REST APIs, authentication (JWT/OAuth2)
  • 🚀 Performance Engineering: Query tuning, indexing, API latency reduction
  • 🔐 Security Engineering: Vulnerability remediation, dependency upgrades, API hardening
  • 📊 Observability: Metrics, dashboards, log tracing, production debugging
  • 🛠️ Cloud & CI/CD: Dockerized deployments, Kubernetes, automated pipelines

🔥 Tech Stack

Backend: Java, Spring Boot, Spring Security, Node.js, Express
Frontend: React, Redux, TypeScript
Databases: PostgreSQL, MongoDB, Redis, Couchbase
Cloud & DevOps: AWS, Docker, Kubernetes, Jenkins, GitHub Actions
Observability & Tools: Grafana, ELK, Postman, Swagger/OpenAPI

🚧 Currently

  • Building scalable backend systems with Spring Boot & Node.js
  • Exploring system design patterns for distributed systems
  • Improving observability & production debugging workflows

⭐ Featured Projects

🛒 CommerceCore (E-Commerce Platform)

MERN + Stripe + JWT + Admin workflows

Full-stack platform with secure payments, role-based access control, and scalable backend APIs.

Repo:
https://github.com/sundarmachani/machanis-frontend
https://github.com/sundarmachani/machanis-backend

Live: https://machanis.vercel.app/

📓 StoryVault (Secure Journal App)

Spring Boot + React + PostgreSQL + JWT

Secure journaling platform with token-based authentication and production-ready REST APIs.

Repo:
https://github.com/sundarmachani/StoryVault

🏗️ Engineering Highlights

  • Increased API performance by ~25% through query optimization and indexing
  • Improved test coverage from 57% → 92% in production microservices
  • Reduced security vulnerabilities by remediating 75+ critical findings
  • Strengthened backend security by ~30% through authentication hardening

📈 GitHub Stats

Sundar's GitHub stats Top languages

💬 Open to backend-focused and full-stack opportunities involving scalable systems and cloud-native architectures.

📫 Let’s Connect

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