Useful Links
Resources I keep coming back to.
Anthropic Claude Docs
Official API reference and guides for building with Claude models, tool use, and agentic systems.
https://docs.anthropic.com
OpenAI Platform Docs
Complete reference for GPT models, Codex, Assistants API, structured outputs, and tool calling.
https://platform.openai.com/docs
LangChain Documentation
Framework for building LLM-powered chains, agents, memory, and retrieval-augmented applications.
https://python.langchain.com/docs/introduction/
Hugging Face Docs
Hub, Transformers library, and ecosystem docs for open-source AI models, datasets, and spaces.
https://huggingface.co/docs
Papers With Code
Machine learning research papers with linked open-source implementations and benchmark results.
https://paperswithcode.com/
The Pragmatic Engineer
Gergely Orosz's newsletter on software engineering, engineering leadership, and the industry at large.
https://newsletter.pragmaticengineer.com/
System Design Primer
Open-source guide to designing large-scale distributed systems with examples and interview prep.
https://github.com/donnemartin/system-design-primer
Designing Data-Intensive Applications
Martin Kleppmann's authoritative book on the engineering principles behind distributed data systems.
https://dataintensive.net/
Architecture Patterns with Python
Free book on DDD, event-driven architecture, and ports & adapters patterns with practical Python examples.
https://www.cosmicpython.com/
MDN Web Docs
The definitive reference for web standards, HTML, CSS, JavaScript APIs, and browser compatibility.
https://developer.mozilla.org/
A Tour of Go
Interactive, in-browser introduction to Go's syntax, concurrency primitives, and standard library.
https://go.dev/tour/welcome/1
freeCodeCamp
Free, project-based curriculum covering web development, data science, machine learning, and algorithms.
https://www.freecodecamp.org/
LeetCode
Coding challenges for algorithms, data structures, and system design — widely used for technical interviews.
https://leetcode.com/
The Odin Project
Full-stack web development curriculum built with projects, from absolute beginner to job-ready.
https://www.theodinproject.com/