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Raja Babu

Agentic AI Engineer AI Engineer Generative AI Engineer LLM Engineer Edge AI Engineer

Designing and deploying production-grade multi-agent systems, LLM pipelines, RAG architectures, and edge AI solutions. Research-backed from IIT Patna — building AI that reasons, plans, and ships.

Portrait of Raja Babu, AI Engineer
Raja Babu
Agentic AI Engineer
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Projects
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Years Exp
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NPTEL

Available for hire


About

Who I am

Results-driven Agentic AI / Generative AI / LLM Engineer with proven experience designing and deploying production-grade multi-agent systems, LLM pipelines, RAG architectures, and edge AI solutions.

Currently a full-time Agentic AI Engineer at STEMbotix Pvt. Ltd., building voice AI assistants, robotic AI systems (ESP-Claw), and embedded AI pipelines — with prior research at IIT Patna.

Expert in LangChain, LangGraph, CrewAI, MCP, Prompt Engineering, Generative AI, and LLMs (Gemini, GPT). Seeking an AI Engineer or LLM Engineer role to build scalable, intelligent, real-world AI products.

Languages

🇮🇳 Hindi — Native
🌐 English — Professional
📍
Location
Bengaluru, India
Open to relocation
🎓
Education
B.Tech (Hons) CSE — AI
CSVTU, Bhilai · 7.8 CGPA
🏢
Current Role
Agentic AI Engineer
STEMbotix Pvt. Ltd.
🔬
Research
IIT Patna
Knowledge Graphs · Deep Learning

Career

Professional Experience

From edge AI firmware to multi-agent orchestration — building intelligent systems across the full stack.

Dec 2025 — Present
Agentic AI Engineer
STEMbotix Pvt. Ltd. · Gandhinagar, Gujarat
Agentic AI
  • Developed and deployed an Agentic Voice AI assistant on DFRobot Unihiker K10 (ESP32) using Xiaozhi-esp32-server, integrating Gemini LLM, ASR (AI4Bharat, Whisper), TTS, WebSocket — achieving real-time multilingual interaction supporting 5+ languages with sub-2s response latency.
  • Implemented ESP-IDF–based firmware workflows for device–server orchestration, speech recognition deployment, OTA-enabled interaction, and on-device AI pipelines for detection, recognition, and classification with custom UI rendering.
  • Built and deployed ESP-Claw — an ESP32-based robotic claw system inspired by the Open-Claw open-source framework, integrating servo motor control, real-time AI inference, and computer vision on edge hardware using ESP-IDF and ESP32-S3.
Feb 2024 — Jun 2024
Research Intern
IIT Patna · Patna, Bihar
Research
  • Completed a research internship contributing to Knowledge Graph–based review analysis, image classification, and text review inspection.
  • Applied advanced deep learning models — CNNs, RNNs, Transformers, NLP — collaborating closely with the research group and faculty.
May 2024 — Jun 2024
Summer Intern
IIT Patna · Patna, Bihar
Deep Learning
  • Contributed to a road crack detection project using CVAT for image annotation and dataset creation.
  • Gained hands-on experience in image annotation pipelines and supporting deep learning model development for infrastructure inspection.

Work

Featured Projects

End-to-end AI systems — from multi-agent orchestration to edge-deployed voice assistants.

Agentic · Security 02
Apr 2026
CodeSentinel — Autonomous Multi-Agent Code Reviewer
Production-grade AI code reviewer using Google Gemini, LangGraph, and FastAPI, orchestrating 8 specialized agents (Planner, Analyzer, Security Scanner, Test Generator, Critic, Synthesizer) in a stateful pipeline with human-in-the-loop escalation. Integrated RAG pipeline (ChromaDB + Gemini embeddings) with real-time GitHub webhook triggering and multi-channel output via GitHub comments, Slack, and Jira.
Gemini LangGraph FastAPI ChromaDB RAG GitHub Webhooks
Voice AI · Edge 03
2025 — Ongoing
Agentic Voice AI on ESP32 Edge Device
Embedded agentic voice assistant on DFRobot Unihiker K10 — Gemini LLM, multilingual ASR (Whisper, AI4Bharat), TTS, and real-time WebSocket orchestration. Sub-2s latency, 5+ languages, on-device AI inference with OTA firmware updates.
Gemini LLM Whisper ASR AI4Bharat ESP-IDF WebSocket OTA
Research 04
May 2024
Knowledge Graph–Based Text Review Analysis
Research project at IIT Patna to analyze and extract structured insights from text reviews using Knowledge Graphs, deep learning, and NLP — enhancing understanding of user feedback at scale. Applied CNNs, RNNs, Transformers, and GNNs.
Knowledge Graphs GNNs NLP Transformers
Robotics · Edge AI 05
2025 — 2026
ESP-Claw — Robotic Claw with AI Inference
ESP32-based robotic claw system inspired by Open-Claw framework. Integrated servo motor control, real-time AI inference, and computer vision on edge hardware using ESP-IDF and ESP32-S3 — delivering a fully functional working prototype.
ESP32-S3 ESP-IDF Computer Vision Servo Control Edge AI

Expertise

Technical Skills

Covering the full intelligence stack — from prompt engineering and LLM orchestration to autonomous multi-agent pipelines, embedded edge deployment, and ML infrastructure.

Programming

Python C C++ Bash

Databases & Viz

MySQL ChromaDB Pinecone Power BI
Agentic & Gen AI
LangChain LangGraph CrewAI MCP A2A Protocol n8n Prompt Engineering RAG Multi-Agent Systems
LLMs & APIs
Gemini GPT-4o HuggingFace Transformers Fine-tuning Tool-based AI
ML & Deep Learning
TensorFlow Keras Scikit-learn CNNs RNNs GNNs NLP OpenCV OCR Decision Trees SVMs Bagging & Boosting
Edge & Embedded AI
ESP32-S3 ESP-IDF Espressif Mind+ Scratch VAD ASR (AI4Bharat) TTS Arduino WebSocket OTA Firmware Display (LCD/OLED/TFT)
Infrastructure & Data
Docker Git / GitHub GCP Flask FastAPI Pandas NumPy Matplotlib Plotly Seaborn Feature Engineering Data Preprocessing

Background

Education & Achievements

Degree
B.Tech (Hons) Computer Science & Engineering
// Specialization: Artificial Intelligence
Chhattisgarh Swami Vivekanand Technical University
Bhilai, Chhattisgarh · 2021 – 2025
7.8 / 10.0 CGPA
🏆
1st Position — WebExpo 2023
KK Modi University, Durg · Jun 2023
🎓
High Performance Scientific Computation
IIT Bombay — NPTEL · 2023
88% · Elite Silver
🎓
Algorithmic Game Theory
IIT Kharagpur — NPTEL · 2023
81% · Elite Silver
🎓
Management Information System
IIT Kharagpur — NPTEL · 2024
69% · Elite Silver

Let's Connect

Open to great
opportunities.

Full-time · Freelance · Research Collaboration
Let's build something intelligent together.