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  • Cognizant
  • Pune

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RohitGit0808/README.md


About

I'm a Backend & Distributed Systems Engineer transitioning from enterprise test automation at Cognizant. I design and build cloud-native systems — microservices on Kubernetes, event-driven architectures on Kafka, infrastructure on AWS via Terraform.

My background combines software research (ISRO, DRDO) with production-grade engineering (CI/CD, observability, chaos testing). I build systems that are scalable, observable, and resilient by design.

Currently building  →  NexusPlatform (distributed commerce backend, 1M+ orders/day)
Open to             →  Backend Engineer · Platform Engineer · SRE
Location            →  Pune, India

Flagship Project

NexusPlatform — Distributed Commerce Backend

Production-grade event-driven microservices platform designed for 1M+ orders/day.

Distributed Patterns Implemented:

  • Saga Orchestrator — distributed transactions without 2-Phase Commit
  • CQRS + Event Sourcing — separate read/write models, full audit trail, snapshots
  • Redlock Algorithm — distributed mutex on 3 Redis nodes (majority quorum)
  • Sliding-window Rate Limiter — atomic Lua scripts across all gateway replicas
  • Circuit Breaker — per-upstream state machine (CLOSED → OPEN → HALF-OPEN)
  • Outbox Pattern — guaranteed event delivery, no dual-write problem

Infrastructure:

  • AWS EKS + MSK (Kafka) + RDS × 3 + ElastiCache — Terraform modules
  • Istio mTLS + progressive canary delivery (10% → observe → 100%)
  • HPA with custom metrics, PodDisruptionBudget, Chaos Engineering tests
  • OpenTelemetry traces + Prometheus SLO alerts + Grafana dashboards
 
┌─────────────────────┐
│   API Gateway       │
│  JWT · RateLimit    │
│  CircuitBreaker     │
└────────┬────────────┘
         │
    ┌────┴─────┬──────┐
    ▼          ▼      ▼
 Order    Inventory Payment
 CQRS     Redlock   Idempotency
 Saga     Lock      Exactly-once
    │          │      │
    └────┬─────┴──────┘
         ▼
      Kafka
  nexus.orders
  nexus.payments
         │
         ▼
  Notification
   Service

Technical Skills

Domain Technologies
Languages Go TypeScript Java Python
Distributed Systems Kafka Redis gRPC PostgreSQL
Cloud & Infra AWS Kubernetes Terraform Docker Istio Helm
Observability Prometheus Grafana OpenTelemetry Jaeger
Testing & CI/CD Playwright Selenium GitHub Actions

Projects

Repository Description Stack
nexus-platform Distributed commerce backend — CQRS, Event Sourcing, Saga, Redlock, Kafka, Canary deploys Go Kafka K8s Terraform AWS Istio
playwright-ultimate-enterprise Enterprise automation — 8 test types, BDD/Cucumber, Visual, A11y, Security, 4-shard CI TypeScript Playwright Cucumber Docker
selenium-enterprise-framework Java automation — Selenium Grid, TestNG, Allure, Cucumber BDD, multi-browser CI Java Selenium 4 TestNG Allure
Academic-Alleway-Integrated-with-AI AWS serverless ERP — Lambda, DynamoDB, EventBridge, SQS, AI chatbot, React AWS React DynamoDB Lambda
FlockX Twitter clone — Spring Boot microservices, Spring Cloud, PostgreSQL, AWS S3, JWT Spring Boot Spring Cloud PostgreSQL
Drone Navigation System AI autonomous drone — TensorFlow, Dijkstra path planning, AirSim & Gazebo simulation Python TensorFlow PyTorch

GitHub Stats

  

GitHub Trophies

Contribution

contribution snake

Experience

Company Role Period Key Work
Cognizant SDET May 2025 – Present Enterprise automation frameworks · BDD · Dockerized CI/CD pipelines
ISRO Software Intern Jan – Jun 2024 Validated NASA global aerosol datasets · Remote sensing data pipelines
DRDO Software Intern Mar – Aug 2022 YOLOv3 military object detection model · 91.55% mAP

Publications

Title Venue Status
Efficient Pharmacy Tracker Application ECS ✅ Published
NLP Techniques in Customer Service IEEE 📖 Upcoming Book

Open to Backend Engineer · Platform Engineer · SRE opportunities

Hire Me

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