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Doing magic
Doing magic
  • College of Engineering, Guindy
  • Chennai, India

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Velogan-Boy/README.md


🧑‍💻 About Me

const velan = {
  name:       "Velmurugan Jeyakumar",
  alias:      "Velan",
  location:   "Chennai, India 🇮🇳",
  degree:     "B.E. CSE @ CEG, Anna University (2024)",

  stack: [
    "Node.js", "Spring Boot", "React.js",
    "TypeScript", "Python", "Java",
    "AWS", "PostgreSQL", "Redis", "DynamoDB"
  ],

  currentlyLearning: [
    "Java Spring Boot Microservices",
    "System Design (LLD + HLD)",
    "Advanced Agent Patterns & MCP Servers"
  ],

  certifications: [
    "AWS SA Professional [SAP-C02]",
    "Building with the Claude API"
  ],

  funFact: "I cut AI spend by $1k+/month with an SDK I built 💸",

  motto: () => "Ship systems that scale. Learn what's next. Repeat.",
};


🛠️ Tech Stack

Languages

Node.js TypeScript Java Python SQL PHP HTML5 CSS3

Frameworks & Libraries

Spring Boot React LangChain Prisma Jest

Cloud & DevOps

AWS Lambda Docker GitHub Actions Azure DevOps Serverless

Databases

PostgreSQL DynamoDB Redis MongoDB Firebase

AI / GenAI

Claude API OpenAI RAG


📊 GitHub Stats


🔥 Streak Stats


📈 Activity Graph


🏆 Trophy Wall


💼 Work Experience

🏢 Rootquotient — Software Development Engineer II  |  Mar 2026 – Present  |  Chennai, India

Stack: Node.js TypeScript AWS LLM Observability Claude API OpenAI GPT PostgreSQL ECS Docker

  • 🧑‍🏫 Mentoring junior developers on diagnosing production issues — N+1 queries, missing database indexes, and silent latency regressions from slow third-party APIs
  • ☁️ Optimized AWS infrastructure cost by eliminating a redundant load balancer in a single-instance ECS setup (ASG + ECS), simplifying architecture with zero availability impact
  • 🤖 Built a GenAI Monitor SDK tracking LLM token usage, latency, and cost-per-request across Claude and GPT models — enabled prompt-level observability and cut AI spend by $1k+/month
  • 🔍 Introduced structured LLM observability patterns across the team, identifying wasteful model choices and informing prompt optimization strategies
🏢 Rootquotient — Software Development Engineer I  |  Jan 2024 – Mar 2026  |  Chennai, India

Stack: Node.js TypeScript AWS Lambda IoT Core SQS PostgreSQL Redis DynamoDB WebSockets Python Facebook Prophet EventBridge Salesforce REST API

  • 🌐 Gridsteward.com — Owned backend of a serverless IoT energy platform with a cursor-based pipeline (IoT Core → SQS → Lambda → RDS/PostgreSQL) ingesting 10M+ sensor readings/day from 10k+ households, with real-time WebSocket dashboards and ML forecasting
  • ⚡ Introduced Redis caching for high-traffic Salesforce REST APIs with automatic cache invalidation on outbound change events — dropped p95 latency by 66% (1.2s → 400ms)
  • 🏅 Received "Learning Enthusiast Award" for driving serverless adoption across the team and maintaining delivery pace under tight timelines

🚀 Featured Projects

Project Stack Highlights
Gridsteward – Smart Grid & Home Energy Automation Node.js · Python · AWS Lambda · PostgreSQL · DynamoDB · EventBridge 10M+ sensor readings/day · 10k+ households · TOU pricing engine · Prophet forecasting · Seam API thermostat integration · Power leakage multi-stage alerts
College Placement Portal (CUIC) React.js · Node.js · PostgreSQL · AWS EC2/RDS/S3 · Cloudflare R2 Serves 5,000+ students & recruiters annually · 800+ peak concurrent users · Real-time WebSocket placement alerts · Queue-driven emails · Headless Chromium PDF reports
College Induction App Spring Boot · PostgreSQL · AWS Induction system for activities, batches, and enrollments · Recurring schedules with exceptions · Real-time venue/timetable change notifications

🏅 Achievements

🏆 Achievement Details
☁️ AWS Certified Solutions Architect – Professional SAP-C02 · Valid Aug 2025 – Aug 2028
🤖 Building with the Claude API Anthropic Certification · March 2026
💸 GenAI Cost Optimization Cut LLM spend by $1k+/month via custom observability SDK
66% Latency Reduction Salesforce API p95 latency: 1.2s → 400ms with Redis caching
📡 IoT Scale Engineering Handled 10M+ sensor readings/day across 10k+ households
🎓 Director of Technology Led 20+ member tech team at CEG Tech Forum · Deployed AWS infra handling 1M+ requests
💳 Payment System Built Instamojo payment integration with <1% failure rate for CEG Tech Forum
🏫 Co-Founded CUIC Portal Official Anna University placement portal · 5,000+ users annually

🎓 Education

Degree Institution Year Score
B.E. Computer Science & Engineering College of Engineering, Guindy – Anna University Class of 2024 First Class with Distinction

📚 Currently Learning

🔧 Java Spring Boot  →  Microservices · REST APIs · JPA · Spring Security
🏗️  System Design    →  LLD · HLD · Distributed Systems · CAP Theorem
🤖 Agent Patterns    →  MCP Servers · Tool Use · Multi-agent Orchestration
☁️  Cloud Advanced   →  Multi-region · Service Mesh · FinOps Patterns
🔬 GenAI Internals   →  RAG · Fine-tuning · Eval Frameworks · LLM Observability

"Ship systems that scale. Learn what's next. Repeat."

   

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