Portfolio | Sakthi Murugan

AI Agent

Voice AI Agent (Jarvis) – Telegram Voice & Text Assistant

Problem

Users often need quick answers, information retrieval, or task execution through messaging apps. However, traditional chatbots struggle to process both voice and text inputs, provide contextual responses, and deliver natural voice replies, creating a limited user experience.

Solution

Built an AI-powered Voice Assistant integrated with Telegram using n8n. The system intelligently processes both voice messages and text inputs, converts voice to text, generates intelligent AI responses, and optionally returns voice replies for a conversational assistant experience.

Tech Stack

n8n · OpenAI GPT · OpenAI Whisper · Telegram Bot API · OpenAI TTS · Langchain nodes · SERP API

Duration

1 hour

Result: Built a multi-modal AI assistant capable of handling both voice and text interactions. Users can send voice messages via Telegram, which are automatically transcribed, processed by AI, and returned as intelligent responses. The system also generates natural AI voice responses, creating a conversational assistant experience similar to Jarvis-style voice agents.

n8n Gemini OpenAi Telegram Bot langchain Memory AI Agent SERP API

AI Automation

AI Email Automation Agent (n8n + OpenAI)

Problem

Businesses waste hours sending repetitive, manual emails to leads and customers.

Solution

Built an AI agent that automatically sends personalized emails via Gmail using prompts and webhook triggers.

Tech Stack

n8n · OpenAI GPT-4 · Gmail API · Webhooks

Duration

15 minutes

Result: Fully automated email communication workflow — 0 manual effort, 100% consistent delivery, personalized at scale.

n8n OpenAI Gmail API Webhooks AI Automation

AI Automation

AI Resume Analyzer & Cover Letter Generator

Problem

Job seekers struggle to tailor resumes for each job, losing opportunities.

Solution

AI workflow that analyzes JDs, finds skill gaps, optimizes resumes & generates cover letters, then emails report.

Tech Stack

n8n · Gemini · Google Sheets · Gmail · AI Agents

Duration

2 hours

Result: End-to-end AI job application automation — from JD input to personalized cover letter in minutes.

n8nGeminiGoogle SheetsGmailAI Agents

AI Automation

Self-RAG Knowledge Assistant

Description

Retrieval-Augmented Generation system with self-evaluation loop to validate accuracy of AI answers.

Tech Stack

Python · HuggingFace · FAISS · LLM

Features

Retrieves docs → Generates answers → Self-validates → Re-generates if needed

Duration

1 hour

Result: Demonstrates strong AI engineering fundamentals — production-grade RAG with accuracy self-checking.

PythonHuggingFaceFAISSRAGNLP

AI Agent

AI RAG Chatbot for Document Q&A

Problem

Organizations struggle to provide instant answers from large knowledge bases such as FAQs, documents, and internal resources.

Solution

Built a Retrieval-Augmented Generation (RAG) chatbot using n8n that retrieves relevant knowledge from a Pinecone vector database and generates accurate answers using OpenAI.

Tech Stack

n8n · OpenAI GPT · Pinecone Vector DB · Telegram Bot · Google Drive · Embeddings

Duration

30 Minutes

Result: AI chatbot capable of retrieving answers from uploaded documents, handling real-time queries, and responding instantly through Telegram.

n8n Gemini Pinecone RAG webhook AI Agent

Projects & Case Studies