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SagarMaheshwary/README.md

👋 Hey, I'm Sagar Maheshwary!

🚀 Senior Backend Engineer | Microservices | DevOps | Distributed Systems

I specialize in designing and scaling high-performance, distributed backend systems. With 6 years of hands-on experience, I’ve led architecture design and development for real-time and high-traffic systems, built on modern backend stacks, DevOps tooling, and cloud-native infrastructure.

Currently, I’m a Senior Backend Engineer at Next Generation Innovations, where I work across microservices, infrastructure, and system design — scaling APIs to millions of daily requests and enabling production-grade observability and resilience.


🛠️ Tech Stack & Tools

Languages & Frameworks: Golang · Node.js (TypeScript) · NestJS · Laravel

Databases & Messaging: PostgreSQL · MySQL · Redis · RabbitMQ

Backend Architecture: Microservices · gRPC · REST APIs · Event-driven Systems · WebSocket

Infrastructure & DevOps: Docker · Kubernetes · AWS · GCP · Azure · Linux · Nginx · CI/CD

Monitoring & Observability: Prometheus · Grafana · Loki · Pino · Custom Metrics & Alerts

Engineering Practices: Load Testing · Distributed Tracing · System Design · Unit Testing · Git


🔧 Projects & Expertise Highlights

  • Built and scaled a real-time AI telephony system with Asterisk, RabbitMQ, OpenAI, and gRPC — handling hundreds of concurrent voice calls and millions of API requests.
  • Architected and deployed a video streaming platform using Microservices, Kubernetes, and gRPC — managed end-to-end infra and service communication.
  • Integrated full observability stack using Prometheus, Grafana, and Loki.
  • Conducted load testing and bottleneck analysis for APIs, RabbitMQ, PostgreSQL, and Redis.

🌱 Currently Deepening Expertise

  • System Design for Scale – Focusing on high-availability, fault-tolerant designs
  • Cloud-native Infrastructure – Expanding AWS and Kubernetes production skills
  • Open Source Contribution – Building reusable libraries and developer tools

🤝 Open to Opportunities & Collaborations

I'm actively looking to join international teams that solve complex engineering problems at scale. Open to open-source contributions and backend-focused collaborations too!


📩 Reach Out

📧 sagarmaheshwary31@gmail.com

🔗 LinkedIn


🚀 Let’s build fast, scalable, and reliable systems — together.

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  1. microservices microservices Public

    Microservices-based video streaming platform built with gRPC, RabbitMQ, Kubernetes, Redis, PostgreSQL, AWS — with full observability using Grafana, Prometheus, Loki, and Jaeger.

    Makefile 2

  2. microservices-authentication-service microservices-authentication-service Public

    Handles user authentication and JWT management, integrating with Redis for token blacklisting and User Service for validation.

    Go 1

  3. microservices-api-gateway microservices-api-gateway Public

    REST-based gateway routing external traffic to gRPC microservices, serving as the single entry point to the platform.

    Go

  4. microservices-user-service microservices-user-service Public

    Manages user profiles and settings using gRPC and PostgreSQL for internal user data operations.

    TypeScript 1

  5. laravel-multiauth laravel-multiauth Public

    Laravel application with multiple authentication guards.

    PHP 44 31

  6. Employee Employee Public

    A Simple Employee Management System with Materializecss and Laravel

    PHP 106 57

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