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Achievement: Pull Shark

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Calladrus2001/README.md

Hi there, I'm Vishesh Dugar 👋


Backend Software Engineer with 2+ years of experience building distributed, event-driven systems on AWS. Shipped serverless pipelines processing 1M+ daily events, led a Redis migration saving $64.5K/year, and delivered a zero-downtime inter-cloud migration in one quarter, with recent work in RAG systems and MCP/AgentCore integrations.

🛠️ Technical Skills

Development Languages
TypeScript JavaScript Python SQL Bash

Frameworks & Libraries
Node.js Express.js FastAPI React LangChain LangGraph FastMCP

Databases & Caches
PostgreSQL Redis Weaviate Elasticsearch Amazon Aurora Amazon DynamoDB MongoDB

Cloud & DevOps
AWS Docker Terraform

Developer Tools & Observability
Datadog LocalStack GitHub Actions

💼 Experience

Software Engineer | ION Group (July 2024 – Present)

  • Serverless Reporting Pipeline: Designed an event-driven reporting pipeline on AWS Kinesis Firehose, S3, Glue, and Athena processing 1M+ daily API and UI events, generating on-demand customer reports in under 2 minutes delivered via pre-signed S3 URLs.
  • Redis Cluster Migration: Scaled ElastiCache Redis from a single node to a clustered architecture, cutting required RAM by 77% (318GB → 79GB) and infrastructure costs by 74% (~$64.5K/year savings) while improving CPU throughput 3x.
  • AgentCore / MCP Integration: Shipped an MCP integration for KYC6 on AgentCore in response to channel partner demand, reducing client agent integration down to 2–3 days of testing; adopted by 2 partners serving 20–30 customers each.
  • ... and other epic shit I dont want to put here

🚀 Featured Projects

Paralegal | Production-Grade RAG System for Legal Document Querying

GitHub Repo Live Demo

Node.js • React • AWS • LocalStack • Docker • LangChain • Weaviate • OpenAI • Bash • Terraform

  • Built a production-grade RAG system for legal document querying with automated ingestion, vector embedding, and a self-healing feedback pipeline routing degraded chunks to LLM correction or human review across 10 quality categories.
  • Deployed on Spot EC2 with interruption handling and split infrastructure across real AWS and LocalStack via two Terraform layers, cutting hosting costs by 88% ($16 vs $140/mo).

🏆 Certifications & Achievements

  • ☁️ AWS Certified Solutions Architect – Associate (Valid through May 2027)
  • ☁️ AWS Certified Cloud Practitioner (Valid through May 2027)
  • 🏅 Flipkart GRiD 5.0: Top 1% among 400,000+ participants
  • 🥇 Major League Hacking (MLH): 5x Hackathon Winner (including sponsor tracks: Google Cloud, GoDaddy, Twilio, Agora)

🎓 Education

  • Vellore Institute of Technology — B.Tech in Computer Science | GPA: 8.4/10 (Sept 2020 – July 2024)

Pinned Loading

  1. paralegal paralegal Public

    A production-grade RAG system enabling legal professionals to query large document sets in natural language, with automated document ingestion, chunking, and vector embedding at scale.

    TypeScript

  2. portfolio-website portfolio-website Public

    My portfolio website

    TypeScript