Skip to content
View VamsiKrishna0101's full-sized avatar

Block or report VamsiKrishna0101

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
VamsiKrishna0101/README.md

Vamsi Krishna

Backend Engineer · AI Systems · LLM Orchestration

Building production AI infrastructure from Hyderabad → Germany

LinkedIn Portfolio LeetCode


What I build

Multi-agent AI pipelines, high-throughput backend systems, and production-grade APIs that handle real traffic under real constraints.

At RefractOne I cut LLM latency ~60% and API costs ~40% via async parallel agent architecture on GCP. Outside work I ship independently — two apps live on Google Play, stress-tested at 1.9M+ API requests with P95 < 200ms at 500 concurrent users.


Projects

Nexora AI — Executive & Corporate Intelligence Platform

Turn a company domain or a person's name into a boardroom-ready intelligence dossier

  • Company track — 12-section AI report (financials, tech stack, competitive landscape, SWOT, analyst verdict); sections 1–10 run in parallel via thread pool, SWOT + verdict synthesize sequentially
  • Persona track — 12-node sequential LangGraph pipeline: identity → professional background → skills → personality → online presence → content leadership → social intelligence → network influence → achievements → red flags → engagement playbook → analyst verdict
  • RAG chat — Pinecone-indexed reports; ask any question about a saved persona or company
  • Stack — FastAPI · LangGraph · Gemini · Node.js · TypeScript · PostgreSQL · Pinecone · React

VendorIQ — AI Decision Intelligence

Multi-agent boardroom simulation for evidence-based vendor selection

Built for Google DeepMind × AI & Big Data Expo North America Hackathon 2026

  • 13 specialized agents (CFO, CTO, Legal, Devil's Advocate, Governance Auditor) debate across 3 structured rounds
  • Live bias detection per round — biased agents auto-downweighted in final verdict
  • Full replay system — debates saved to PostgreSQL, replayable without re-running LLM
  • Stack — LangGraph · Gemini 2.5 Flash · FastAPI · PostgreSQL · React · TypeScript

Convoxa — Community Discussion Platform

Production modular monolith — 322 installs, 65 MAU, 1.9M+ API requests

  • 3-mode feed ranking (New/Hot/Top), threaded comments, nested voting
  • Read-optimised PostgreSQL schema — denormalised aggregate counters, eliminated COUNT() on hot read paths
  • k6 stress-tested: P95 < 200ms at 500 concurrent users · homefeed 199 RPS · thread 449 RPS
  • Stack — Node.js · TypeScript · PostgreSQL · Redis · BullMQ · Socket.io · GCP Cloud Run

Lepus — Campus Social Platform

Student-only platform with real-time messaging, live bus tracking, QR attendance — 6 Indian languages

  • Stack — Node.js · MongoDB · Redis · Socket.io · React Native · Expo · GCP · Firebase

Stack

Backend      Node.js  TypeScript  FastAPI  Python  Express  REST  WebSockets  BullMQ
AI/ML        LangGraph  LLM Orchestration  RAG  Pinecone  Prompt Engineering  Gemini
Databases    PostgreSQL  MongoDB  Redis  SQLite  Prisma  Mongoose
Cloud        GCP (Cloud Run · Cloud Build · GCS · IAM)  Docker  GitHub Actions  AWS

Numbers

LeetCode Knight — 1900+ rating (top 3% globally)
Load tested 1.9M+ API requests · P95 < 200ms @ 500 concurrent users
Play Store 2 apps live · 322 installs · 65 MAU
LLM latency ~60% reduction via async parallel agent architecture
API costs ~40% reduction via prompt orchestration + RAG

Currently

  • Building AI agent systems at RefractOne, Gurugram
  • Actively targeting backend / AI engineering roles in Germany — EU Blue Card eligible, Anabin H+ degree, German A2 → B1
  • Open to relocation: Berlin · Munich · Hamburg

Popular repositories Loading

  1. Shoppy-E-commerce-Website Shoppy-E-commerce-Website Public

    JavaScript

  2. Attendance_Marking_System Attendance_Marking_System Public

    Attendance Marking System By Face recognition

    Python

  3. ChattingApp ChattingApp Public

    HTML

  4. React-Chatting-App React-Chatting-App Public

  5. Food-Delivery-App Food-Delivery-App Public

  6. React-Chat-App React-Chat-App Public