Raj4478 (Rajeshwar Singh ) · GitHub
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Raj4478/README.md

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👨‍💻 About Me

const rajeshwar: Engineer = {
  role:       "Software Development Engineer I @ Bimaplan (YC-backed)",
  focus:      ["Distributed Systems", "Backend Architecture", "AWS Infrastructure"],
  current:    "Building claims automation pipelines integrating 4 insurers at scale",
  stack:      ["NestJS", "TypeScript", "PostgreSQL", "AWS SQS", "Docker"],
  impact: {
    claimProcessingTime:  "-65%",
    unhandledErrors:      "-90%",
    dbResponseTime:       "-55%",
    systemUptime:         "99.8%",
  },
  education:  "MCA — CGC Jhanjeri, Chandigarh (2025)",
  location:   "Chandigarh, India 🇮🇳",
  openTo:     "SDE-II roles · Full-Stack · Backend · Distributed Systems · Fintech/Insurtech",
};

🏢 Professional Experience

🚀 Bimaplan · SDE-I

Nov 2025 – Present · Chandigarh YC-Backed Insurtech Platform

  • Architected 4-insurer proxy modules (Kotak, Bajaj, ICICI Pru, Tata AIG) with AES-256-CBC encryption & JWT auth
  • Built event-driven claims document pipeline with OCR extraction → 65% faster processing
  • Designed AWS SQS FIFO queue with Dead Letter Queue → 90% fewer unhandled errors
  • Delivered Curebay DHC bulk upload processing 33,624 policy rows across 5 months
  • Applied TypeORM indexing strategies → 55% reduction in DB response time
  • Maintained 99.8% uptime on AWS infrastructure

🌐 Vosyn · Full-Stack Engineer

Jun 2025 – Nov 2025 · Remote LinkedIn Top Startups Canada #4, 2025

  • Built i18n framework with lazy-loading per locale via CDN → 60% faster translation deploys
  • Engineered custom HTML5 audio player with WebVTT subtitles → 180KB bundle reduction
  • Achieved 95+ Lighthouse score and 98% mobile usability via code-splitting
  • Handled 10K+ concurrent WebSocket translation requests at 99.5% uptime
  • Shipped 15+ features across 3 time zones via GitHub Actions CI/CD

🛠️ Tech Stack

Languages

TypeScript JavaScript Python SQL

Backend

NestJS Node.js Express FastAPI Django

Cloud & DevOps

AWS Docker GitHub Actions

Databases

PostgreSQL MongoDB TypeORM

Frontend

React Next.js Tailwind CSS Redux


📊 GitHub Stats


🏗️ Featured Projects

🏥 Hospital Management System React · Node.js · MongoDB · JWT

RBAC for admin/doctor/patient roles API response time: 850ms → 320ms Patient check-in time reduced 40%

♿ Cboard AAC Platform Open Source · WCAG 2.1 · React

Accessibility score: 78% → 94% Serving 10K+ users with speech disabilities WCAG 2.1 AA-compliant contributions

📱 Socially — Social Platform Next.js · TypeScript · Tailwind CSS

Initial page load: 1.8s Core Web Vitals improved 35% 200+ beta users


🎯 Specialized Expertise

✦ AES-256-CBC Encryption & JWT Auth        ✦ AWS SQS FIFO + Dead Letter Queues
✦ OCR Integration & Document Processing    ✦ TypeORM Migrations & Query Optimization
✦ Event-Driven Architecture (NestJS)       ✦ Presigned S3 URLs & Document Staging
✦ Partner API Onboarding & Integration     ✦ Cron Jobs & Batch Processing Pipelines
✦ i18n Internationalization (CDN)          ✦ WebSocket Real-Time Systems

📈 Contribution Activity


"First, solve the problem. Then, write the code."

📫 Reach me at: Singhrajeshwar28@gmail.com · linkedin.com/in/rajeshwar-singh-b6990419a

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