Portrait of Balveer Dhanoriya, Backend and AI Engineer

Balveer Dhanoriya

Open to work

Backend & AI Engineer · Python · Voice AI · Indore, India

I build production AI voice-agent systems — FastAPI / PostgreSQL backends that orchestrate telephony and LLMs to run autonomous phone calls, wired into 15+ third-party CRM, calendar, payment, and email APIs. 7+ years shipping software end-to-end.

Mostly, I just like figuring out how things work — then making them work better.

About

I'm a software engineer in Indore, India — though “engineer” undersells the part I actually love: figuring out how something works, then making it better. I started out building mobile apps, got curious about what powered them, and followed that curiosity all the way down to the backend.

That's how I ended up architecting a multi-tenant AI voice-agent SaaS — a FastAPI / PostgreSQL backend that orchestrates telephony and LLMs to make and receive real phone calls, wired into 15+ third-party APIs across CRM, calendar, payments, and email, on AWS. Alongside my commercial work, I'm building GraphMind, an open-source (Apache 2.0) AI-native knowledge workspace powered by FastAPI, PostgreSQL + pgvector Hybrid RAG, and a provider-agnostic AI core.

Seven years in, I've learned I do my best work when I care about doing it right, not about who's watching. I still learn the same way I started: by building the next thing a little better than the last.

Backend

Python 3.12FastAPISQLAlchemy 2.0PostgreSQLpgvectorPydantic v2AsyncIO / SSEAlembicAPScheduleruv / Poetry

AI, Voice & RAG

Voice AI agents (Ultravox / Vapi)Twilio telephonyHybrid RAG (pgvector + FTS / RRF)Agentic Tool CallingOpenAI / Gemini / Claude / OllamaPerplexitySpeech-to-Text / Transcription

Integrations

PipedriveSalesforceHubSpotGoHighLevelZohoGoogle CalendarOutlookCalendlyQuickBooksHelcimCloverAWS SESSendGridOAuthWebhooks

Auth & Security

AWS CognitoJWTToken refreshFernet encryptionImpersonation / superadmin

Cloud / DevOps

AWS (Cognito, SES, CodeDeploy)DockerGitHub ActionsCI/CDMulti-env deploys

Frontend

Next.js 15React 19TypeScriptReact FlowZustandTailwindTanStack Query

Mobile (earlier work)

Android (Kotlin / Java)Flutter
The best work doesn't need an audience. I'd rather build something that quietly works than chase something that loudly impresses.

Now

Multi-tenant AI voice SaaSIn Production

Building and scaling a FastAPI/PostgreSQL platform that runs autonomous AI phone calls over telephony + LLMs, wired into 15+ CRM, calendar, and payment integrations.

GraphMind (Open Source)Open Source

Developing an Apache-2.0 AI-native knowledge workspace where linear chats become branching 2D knowledge graphs — powered by FastAPI, PostgreSQL + pgvector Hybrid RAG, and a provider-agnostic AI core.

This websiteIn Progress

Writing deep-dives on production AI systems, backend architecture, and lessons learned shipping software.

Writing

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Journey

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Feb

Senior Software Engineer

EncoreSky Technologies, Indore

Current

Contact

Open to Senior Backend & AI Engineer roles, voice-AI or integration consulting, and technical conversations.

Get in touch