AI Engineer

Alireza
Babazadeh Zarei

LLM Applications & Retrieval-Augmented Generation

I build LLM applications and RAG systems — fine-tuning open-source models, designing retrieval pipelines, and shipping chatbots end to end. Background in EEG / brain-computer interface research, recognized with a Gold Medal at the 4th World Invention Competition.

Career signal — 2021–2025

I started in EEG and brain-computer interface research — work on a brain electric field recording system earned a Gold Medal at the 4th World Invention Competition (IFIA, 2024). That background in signal processing shapes how I now approach LLM systems: paying attention to what's actually happening under the hood, not just surface behavior.

Today I focus on LLM applications and RAG — fine-tuning open-source models, building retrieval pipelines, and shipping conversational products from a blank page to real users. Before AI, I spent several years in IT and technical support, which is where the problem-first, hands-on habits come from.

Fall 2024 –
Summer 2025

LLM Engineer Intern

Vira Sanaat
  • Fine-tuned open-source LLMs — DeepSeek, Qwen3, Qwen-VL, Gemma 3, Llama 3.2 — using Unsloth, improving domain-specific accuracy beyond base-model performance.
  • Built offline RAG pipelines on Milvus, with hands-on experience integrating Chroma.
  • Developed internal tooling in Streamlit for testing fine-tuned models and RAG outputs.
Jun 2024 –
Nov 2024

RAG Developer

Homzhans
  • Built the company's first AI chatbot from scratch — no conversational product existed beforehand; shipped as sole developer.
  • Implemented the assistant using the OpenAI (ChatGPT) API, covering prompt design, conversation flow, and integration.
  • Owned the project end to end, from requirements through a working deployed bot, in a five-month engagement.
Aug 2023 –
2024

Co-Founder & CTO

Ravansha — AI psychology startup (paused)
  • Built an AI-powered psychology chatbot on the ChatGPT API with a Streamlit front end, using a large engineered prompt as the product's knowledge base.
  • Grew the product to 150–200 active users as sole technical co-founder.
  • Led technical strategy for one year before the venture was paused.

Catalyst Careers Chatbot

Seeds4Future 2023 — Placed 2nd

Conversational career-guidance assistant built for the competition.

Ravansha Chatbot

GenX 2023 — Placed 6th

Early version of the psychology chatbot that later became the Ravansha product.

ECG-AI Chatbot

GenX 2024 — Entry not completed

ECG-focused AI assistant; built but the competition entry wasn't finished.

Gold · 2024
Gold Medal, 4th World Invention Competition IFIA — for a brain electric field recording system
Silver · 2023
Silver Medal, 3rd International Invention and Innovation Competition IFIA
Silver · 2021
Silver Medal, 1st International Invention and Innovation Competition IFIA
LLMs & Fine-Tuning
DeepSeek Qwen3 Qwen-VL Gemma 3 Llama 3.2 Unsloth OpenAI API Prompt Engineering
RAG & Retrieval
Milvus Chroma Pipeline Design
Languages & Tools
Python Streamlit C++ / Arduino
Research
EEG / BCI Signal Processing Biosignal Research (ECG)