I build AI that
thinks & talks back.
> Hariharan Joga ·
AI engineer building agentic & generative AI — multi-agent architectures, voice & chat agents, and LLM systems that ship to production. Currently building agentic AI at Excelerate Technologies.
Engineer of agentic, generative & voice AI.
I'm Hariharan Joga — an AI engineer who lives at the frontier of agentic, generative, and real-time voice AI. I design autonomous multi-agent architectures (LangGraph, CrewAI, PraisonAI), generative-AI products, and sub-second voice & chat agents (LiveKit, Twilio) that actually run in production — not just notebooks.
From Bhumi — a multilingual farming voice assistant answering over normal phone calls — to an autonomous AI marketing officer that researches rivals on the live web, I love turning frontier AI into products that ship. SIH'24 finalist, 500+ DSA problems solved, and always shipping the next thing.
◧ Agentic & Multi-Agent
Multi-agent architectures with LangGraph, CrewAI & PraisonAI — planner / researcher / writer / QA crews that plan, act, and ship autonomously.
◨ Generative & Voice AI
Generative-AI products plus sub-second voice & WhatsApp agents (LiveKit, Twilio) — natural conversation over calls and chat.
◩ Backend & Infra
Polyglot backends — Python/Flask, Node, Postgres, Pinecone, Redis, Docker, AWS/GCP, async pipelines.
Things I've shipped.
Bhumi
Sub-800ms multilingual voice AI for farmers — crop troubleshooting & fertilizer dosage over a normal phone call, with Redis semantic caching to skip vector lookups.
Agentic AI Engine
Low-latency, multi-turn conversational AI powering both live voice assistants and WhatsApp chatbots (Twilio) — LangGraph state management + a grounded Azure OpenAI prompt pipeline.
Campus Cortex AI
Multi-tenant edtech SaaS with Gemini multimodal grading + hallucination-free RAG tutoring; auto mock-tests and real-time handwritten-answer evaluation.
AI CMO
Autonomous multi-agent marketing officer (Researcher · Writer · QA) that researches B2B rivals on the live web and streams its "thinking" to the UI via SSE.
Edu Tech AI
Generative-AI study app (GPT-4 Turbo + Gemini) that lifted user interaction 40% — auto-generates mock tests and evaluates handwritten answers in real time.
Financial Risk Analyzer
Summarizes SEC filings & compliance docs and scores document/portfolio risk with GPT-4 Turbo + text-embedding-3 retrieval.
Where I've been.
AI SDE Intern
Building agentic AI with LangGraph, LangChain & CrewAI for autonomous task orchestration; deploying custom LLMs with real-time LiveKit voice to production.
Founding AI Engineer
Architected a multi-tenant SaaS on a polyglot backend (Postgres, Pinecone, Mongo) with Gemini multimodal grading + hallucination-free RAG tutoring; built multi-turn WhatsApp conversational AI via Twilio; orchestrated async pipelines (Docker, Cloudflare R2).
SDE Intern · Founding Engineer
Built Generative AI on OpenAI & Azure OpenAI; architected a Flask backend and integrated GPT-4o Vision, cutting processing latency 35%.
AI & ML Intern
Engineered a Random-Forest fraud-detection model at 98% accuracy with batch + single-record pipelines, improving detection efficiency 35%.
Tools of the trade.
What others say.
As our founding AI engineer, he took Campus Cortex from concept to a multi-tenant platform in production — the RAG tutoring and Gemini grading he built are the core of the product.
He ships voice agents that actually feel real-time. Sub-second latency on a live phone call is hard, and he made it look routine.
He built our Generative-AI features end to end — integrated GPT-4o Vision and shipped a production Flask backend faster than I'd expect from anyone, let alone an intern.
Proof of work.
- ★SIH 2024 FinalistTop 5 of 400+ teams · Smart India Hackathon
- ★Designathon FinalistTop 10 of 500+ teams
- ★TS EAMCET — Top 0.4%of all candidates statewide
- ⬡Chairperson — KrithomedhTechnical club · VNR VJIET
- ⬡Associate President — Street CauseStudent-run NGO · VNR VJIET
- ✓Building Voice Agents — LiveKitTaught by the LiveKit founders
- ✓Generative AI / Applied LLMsAI principles · prompt design · responsible AI
- ✓NPTEL — C++Programming certification
Let's build something.
Recruiters, founders, collaborators — if it's interesting and hard, I want to hear about it. Send a transmission, book a call, or grab my email.