Hello, I'm Arjunagi Rehman

I build AI systems
that survive production.

Backend & AI Systems Engineer

Building production agents, real-time platforms and distributed systems — from 0→1 through production.

10+ Production systems
5+ AI deployments
BIAL Production deployment
4+ yrs Backend systems
AI agent, ready to answer questions
Your Question
Grounded in my projects & writing — answers include sources.

Systems that shipped

Production systems and experiments — what they do, who uses them, and how they're built.

More projects & experiments
AI/ML
5 Specialized Agents

ChotU.AI

Multi-agent personal assistant built with LangGraph & OpenRouter. Supervisor agent routes to specialized sub-agents for task management, Google Calendar integration, daily planning, and personal data storage. Deployed on AWS ECS Fargate with React + Vite frontend on S3/CloudFront.

LangGraphOpenRouterECS FargateAWS CDKReact
View case study
Production
Hardware + Mobile

Wisp

Drink-spiking prevention platform combining portable spectroscopy hardware with a real-time mobile safety app. SOS alerts, live location sharing, and sub-3-second scan results.

IoTGoAWSReal-timeSpectroscopy
View case study
AI/ML
Multimodal RAG

ecai

Multimodal RAG platform on Azure. Documents uploaded to Blob Storage → text & images extracted → embedded via text-embedding-3-small → indexed in Azure AI Search → GPT-4.1 powered chat with contextual recall. Retrieval surfaces relevant text chunks + images together.

Azure AI FoundryGPT-4.1Azure AI SearchFastAPIReact 18
View case study
Open Source
3 Live Services

UCP Commerce Suite

End-to-end agentic commerce on the Universal Commerce Protocol: an AI shopping agent (Google ADK + Gemini), a FastAPI merchant reference implementation, and a Next.js storefront. The agent discovers the merchant from a single URL, links identity via OAuth, and completes real checkouts — all three services deployed and live.

UCPGoogle ADKGeminiFastAPINext.js
Open Source

GormAuditLog

Open-source Go library for ORM-level audit logging with GORM. Tracks create/update/delete events with minimal configuration overhead.

GoGORMOpen SourceMySQLPostgreSQL
AI/ML

School Agents

Config-driven AI tutoring agent built with Google ADK and Gemini — YAML-defined agent, markdown prompts, dynamic tool loading, calculator and Google Search tools. Companion repo to the AI Agent System blog series.

Google ADKPythonGeminiLLMEducation
Tool

BedRock Agent Runner

Local execution framework for AWS Bedrock agents — run and test Bedrock AI agents in a local development environment with multiple interface modes.

PythonAWS BedrockAI AgentsLLM
AI/ML

Gemini Multimodal Search

Image search powered by Google Gemini multimodal capabilities. Enables semantic search across images using AI embeddings and vector similarity.

PythonGoogle GeminiMultimodalAIVector Search

What I build with

Backend Go · Python · Java · TypeScript
Infrastructure AWS · Docker · Terraform · Redis · PostgreSQL
AI Google ADK · LangGraph · MCP · RAG · Bedrock
Real-time IoT · SSE · WebSockets · Kafka

I like building systems where software meets the messy real world. That has taken me from real-time infrastructure and IoT systems to production AI agents and agentic interfaces.

About me

Building something difficult?

I'm interested in production AI, backend infrastructure, real-time systems and ambitious 0→1 products.