How Transformers Actually Work — A Visual Guide
Deep Learning·8 min read
Building AI systems · Teaching developers
I build AI systems
Hi, I'm Rahish
I build AI systems
that actually ship.
From fine-tuning LLMs to shipping RAG pipelines and autonomous agents. I create courses, write deep technical blogs, and help developers go from tutorials to real AI engineering.
Stack I work with
Python
PyTorch
LangChain
OpenAI
Hugging Face
LlamaIndex
FastAPI
Next.js
Scroll
Expertise
What I engineer
LLM Engineering
Fine-tuning, prompt engineering, evals, and deploying models at scale.
RAG Systems
Production retrieval pipelines with embeddings, reranking, and vector DBs.
AI Agents
Multi-step agents with tool use, memory, and real-world task automation.
MLOps & Deployment
From notebook to API — Docker, cloud deploy, monitoring, and cost optimization.
50+
AI Systems Built
500+
Developers Taught
20+
Courses & Tutorials
100K+
YouTube Views
What I Do
Build. Teach. Prep.
Ship AI systems, learn with courses, and prep for AI interviews — all from one place.
Build
AI Products & Systems
Production-ready chatbots, RAG apps, agents, and ML pipelines — shipped with full source code.
Browse Projects
Teach
Courses & YouTube
Free and premium courses plus in-depth tutorials. No fluff — just code, math, and real builds.
Start Learning
Prep
AI Interview Questions
250+ deep AI interview questions across RAG, agents, MCP, and LLM system design — with JD analysis.
Start Interview PrepInterview Resource
Ace your next
AI interview
Deep prep for AI engineers — RAG, AI agents, MCP, and LLM system design. Includes JD analyzer, PDF packs, and company-style interview tracks.
- 250+ deep explanations
- RAG · Agents · MCP · LLM design
- JD Analyzer & study plans
- Company tracks: OpenAI, Google, Meta
Featured product
AI Interview Question
250+ AI interview questions & answers
250+
Questions
4
Prep tracks
RAG
Agents · MCP
JD
Analyzer
Ship Faster
AI Projects for Sale
Chatbots
AI Chatbot Starter Kit
Production-ready chatbot with RAG, streaming, and multi-model support.
Next.js
OpenAI
Pinecone
SaaS
AI Image Generator SaaS
Full-stack image generation app with credits, payments, and admin panel.
React
Stable Diffusion
Stripe
Level Up
Top Courses
Free
Introduction to AI & Machine Learning
4 hours·12 lessons
Bestseller
$149
Complete LLM Mastery
40 hours·48 lessons
New
$129
Computer Vision Bootcamp
35 hours·42 lessons
From the Blog
Technical deep dives
Building Your First AI Agent in 2026
Agents·12 min read
Fine-Tuning vs RAG: When to Use What
LLMs·6 min read
On YouTube
Watch & learn free
45:20
Build a RAG System from Scratch
12K views
10:15
GPT Explained in 10 Minutes
28K views
1:02:30
Fine-Tuning LLaMA 3 — Full Tutorial
8.5K views
32:45
I Built an AI Agent That Codes for Me
15K views
Testimonials
What learners say
"Rahish's LLM course changed how I think about AI. The hands-on approach made complex topics click instantly."
P
Priya Sharma
Software Engineer
"The AI Agent course was exactly what I needed. Clear code, real projects, and practical deployment tips."
A
Arjun Patel
ML Engineer
"Best free AI content on YouTube. Clear explanations, no fluff, real projects."
S
Sarah Chen
Data Scientist
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