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sushil2kumars/README.md

Hi, I'm Sushil Kumar 👋

I am a Senior Backend Engineer with over 6 years of professional experience building scalable, high-performance, and secure cloud-native systems. My expertise centers on robust system design, distributed microservices architectures, and high-throughput data processing.

  • 🚀 Currently optimizing full-stack features and high-scale backend integrations.
  • 🛠️ Deeply experienced in Go concurrency primitives, asynchronous Python execution, and cloud infrastructure.
  • 📈 Proven track record of architecting solutions that handle millions of daily events and improve infrastructure performance.

🛠️ Tech Stack & Tools

Category Technologies
Languages Go, Python, JavaScript, HTML/CSS
Frameworks & Protocol gRPC, FastAPI, Django, Flask, Asyncio, WebSockets, GraphQL
Databases & Caching PostgreSQL, MySQL, DynamoDB, Redis
Message Brokers Kafka, MQTT, Celery, Dramatiq
DevOps & Cloud AWS (EC2, ECS, S3, RDS, Lambda, API Gateway), Docker, Kubernetes, GitHub Actions, Linux

📊 Highlighted Engineering Impacts

  • High-Throughput Microservices: Co-architected a backend integration processing and delivering millions of notifications and access requests daily using Go, gRPC, and Python.
  • IoT & Real-Time Sync: Built two-way device synchronization mechanisms using JSON Patch to optimize network usage, alongside secure WebSocket-based notification layers.
  • Infrastructure Tuning: Re-engineered legacy cloud infrastructures on AWS, driving a ~30% improvement in operational and business productivity.

📬 Connect with Me

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