উপকারী লিঙ্ক

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/