Learn computer science. Build for production.
398 tutorials 12 practice problems free to read
Latest tutorials
View All
C++
Four Pillars of Object-Oriented Programming (OOPS)
December 16, 2024 · 3 min read
Arrays
Minimize Difference Between Sum of Squares in Array Permutation
December 3, 2024 · 2 min read
Arrays
Find the occurrence of every element among all possible subarrays of the array
December 3, 2024 · 2 min read
Pattern Searching
Compare Two Lists
December 3, 2024 · 3 min read
Flagship · Pre-launch
Production RAG & LLM Engineering
Retrieval, evaluation and observable LLM systems
Courses
View All
Backend flagship
Production Python Backend Engineering with FastAPI
FastAPI, PostgreSQL, Redis and production APIs
Explore now
Agent engineering
Agentic AI Engineering with LangGraph
LangGraph, tool use, state and human oversight
Explore now
Architecture
System Design & Distributed Systems
Scalable APIs, caching, messaging and resilience
Explore now
Launch updates
Get notified when a course opens.
Sign in with Google or your email, free, and we will send you one email when it opens. No newsletter, no spam.
Engineering services
Need help building
backend & AI systems?
Python and FastAPI backends, RAG and AI agents, architecture and consulting, built for production.
- Fixed-scope projects
- Monthly retainer
- Hourly & advisory
- Deploy & support
Engineering Services
Python & FastAPI Development
Production APIs, integrations, data services, and background processing.
Learn more
AI & RAG Development
Grounded LLM applications with secure retrieval, evaluation, and observability.
Learn more
AI Agent Development
Reliable LangGraph agents with tool calling, human review, and integrations.
Learn more