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Rajneesh180/README.md

Hey there Welcome!

Rajneesh Chaudhary 🚀

IIITM • CS • Grad ’26

Backend Engineering • Distributed Systems • Cloud Infrastructure • ML/GenAI • Competitive Programmer


🧠 Engineering Summary

Software Engineer focused on scalable backend architectures, distributed microservices, and ML-integrated platforms.
I build systems that emphasize fault-tolerance, observability, and performance under concurrency — not just features.

  • Ex-Software Development Engineer Intern — AlgoUniversity (YC-Backed)
  • McKinsey.org Forward Leadership Fellow
  • 1145+ LeetCode | 81% Acceptance | 365-Day Consistency Badge
  • Codeforces Expert — Max Rating 1850

My approach blends algorithmic rigor + system design thinking + cloud-native execution.

Primary Focus:
Backend EngineeringDistributed SystemsReliability EngineeringML / GenAI Platforms


💼 Professional Experience

Software Development Engineer Intern — AlgoUniversity (YC-Backed)

May 2025 – Aug 2025 | Remote
Tech Stack: Node.js • Redis • gRPC • Docker • BullMQ • Terraform • GitHub Actions • OAuth2 • JWT

  • Architected a Distributed Online Judge Platform serving ~500 active users with 110 peak concurrent executions
  • Engineered event-driven evaluation pipelines using Redis Streams + gRPC, achieving ~5× throughput improvement
  • Developed Docker-isolated code-execution microservice with BullMQ queues, CPU/memory sandboxing, and failure isolation
  • Implemented JWT/OAuth2 authentication, RBAC authorization, and multi-layer caching to reduce latency and unauthorized access vectors
  • Automated infrastructure provisioning & CI/CD pipelines via Terraform + GitHub Actions, enabling zero-downtime deployments
  • Enforced stateless service design, idempotent job handling, and horizontal scalability patterns for high availability under concurrency

McKinsey & Company — Forward Leadership Program

Aug 2025 – Present | Remote
Focus Areas: Analytics • Decision Frameworks • Automation • Business Intelligence

  • Designed structured analytical pipelines and decision frameworks for complex problem-solving scenarios
  • Applied MECE principles and hypothesis-driven engineering models to decompose ambiguous systems and optimize solution paths
  • Built data dashboards and automation workflows using Python + BI tools, improving reporting clarity and operational efficiency
  • Strengthened stakeholder communication, strategic thinking, and cross-functional collaboration in distributed team environments

🚀 Flagship Projects

⚡ Premium Online Judge

Repository: https://github.com/Rajneesh180/Premium-Online-Judge

A production-grade full-stack coding platform inspired by LeetCode / Codeforces, engineered for concurrent code execution, real-time analytics, and scalable contest infrastructure.

Scale & Impact

  • ~500 real users110 peak concurrent sessions
  • Handles parallel submissions with isolated execution environments

Core Architecture & Capabilities

  • Docker-isolated compiler microservice for secure sandboxed execution
  • BullMQ asynchronous job queues with retry logic and failure isolation
  • JWT Authentication + RBAC authorization layers
  • Live contests, leaderboards, submission analytics & rating system
  • Caching + stateless service design enabling horizontal scalability

Tech Stack: React • Node.js • MongoDB • Redis • Docker • AWS • Tailwind CSS


⚙️ Event-Driven API Health Monitoring & Reliability Platform

Repository: https://github.com/Rajneesh180/Event-Driven-API-Reliability

A self-hosted reliability and observability platform engineered for fault-tolerant API monitoring, automated recovery workflows, and infrastructure-as-code deployment.

Scale & Impact

  • Designed for high-availability monitoring across distributed service endpoints
  • Enables automated retries and alerting without manual intervention

Core Architecture & Capabilities

  • Queue-based worker microservices enabling asynchronous health checks
  • Retry, backoff, and cooldown logic to prevent alert storms
  • Idempotent alerting pipelines ensuring duplicate-safe notifications
  • Terraform-provisioned AWS infrastructure (SQS, DynamoDB, IAM, VPC)
  • Observability-first design with structured logging, metrics, and tracing hooks

Tech Stack: Terraform • AWS SQS • DynamoDB • Docker • Microservices • Node.js


🤖 GestureTalk — Sign Language Recognition

Repository: https://github.com/Rajneesh180/GestureTalk

A real-time machine learning inference platform enabling sign-language-to-text and gesture-to-speech conversion using computer vision and NLP pipelines.

Scale & Impact

  • Achieved ~97% gesture recognition accuracy across curated ASL datasets
  • Designed for low-latency inference suitable for live webcam streams

Core Architecture & Capabilities

  • TensorFlow-based CNN models for real-time gesture classification
  • OpenCV video processing pipeline with frame normalization and landmark extraction
  • NLP-enhanced text-to-speech conversion for contextual phrase generation
  • WebRTC streaming + Redis message buffering for low-latency communication
  • Modular inference pipeline supporting model retraining and dataset expansion

Tech Stack: TensorFlow • OpenCV • Python • Flask • WebRTC • Redis • NLP


🏆 Achievements & Competitive Programming

  • LeetCode — 1145+ Problems Solved
    81% Acceptance • 365-Day Consistency Badge • 99%+ Performance Percentile
  • Codeforces — Expert Tier | Max Rating: 1850
  • Flipkart GRiD Hackathon — Advanced to Level 3 (Cleared 2 Coding Rounds)
  • Amazon London Online Assessment — Qualified | Awaiting Interview
  • Top 0.5% Performer — AlgoUniversity National Programming Camp

✍️ Technical Writing & Knowledge Sharing

  • Authored in-depth articles on System Design, Advanced DSA, and SOLID Principles
  • Multiple publications exceeding 500+ reads, with sustained reader engagement
  • Emphasis on visual intuition, diagrams, and real-world engineering analogies
  • Covered topics include Binary Trees, Graph Algorithms, Load Balancers, Caching Strategies, and Distributed Systems
  • Goal: translate complex architectures into practical, developer-friendly insights

⚙️ Technical Skills

Languages

              

Backend & Cloud

                   

Databases & ML

              


📊 GitHub Activity


🌐 Connect


🐍 Contribution Activity


💡 Motto

“If it scales — it succeeds. Build with impact, not just intent.”

Pinned Loading

  1. open-telemetry/opentelemetry-collector-contrib open-telemetry/opentelemetry-collector-contrib Public

    Contrib repository for the OpenTelemetry Collector

    Go 4.5k 3.4k

  2. jaeger jaeger Public

    Forked from jaegertracing/jaeger

    CNCF Jaeger, a Distributed Tracing Platform

    Go

  3. hive hive Public

    Forked from aden-hive/hive

    Outcome driven agent development framework that evolves

    Python

  4. opentelemetry-collector-contrib opentelemetry-collector-contrib Public

    Forked from open-telemetry/opentelemetry-collector-contrib

    Contrib repository for the OpenTelemetry Collector

    Go 1

  5. jaegertracing/jaeger jaegertracing/jaeger Public

    CNCF Jaeger, a Distributed Tracing Platform

    Go 22.6k 2.8k

  6. aden-hive/hive aden-hive/hive Public

    Outcome driven agent development framework that evolves

    Python 9.1k 5.2k