# Lucas Bittencourt > Lucas Bittencourt is a full-stack software engineer working with React.js, Node.js, PostgreSQL, Docker, TypeScript. This website is the portfolio and technical blog of Lucas Bittencourt. ## About - [Home](https://lucasbittencourt.dev): who Lucas Bittencourt is and the latest blog posts - [GitHub](https://github.com/lucasgdb): open source repositories - [LinkedIn](https://linkedin.com/in/lucas-bittencourt): professional profile and experience ## Blog posts - [Big-O notation](https://lucasbittencourt.dev/blog/big-o-notation): Learn what Big-O notation is, the difference between time and space complexity, the most common complexities from O(1) to O(n!), and how to analyze the complexity of your own code. - [NodeJS event loop](https://lucasbittencourt.dev/blog/nodejs-event-loop): Learn how Node.js really works: the main thread, the libuv thread pool, the event loop phases, microtasks, how to avoid blocking the event loop, and when to use worker_threads, child_process, cluster or containers to scale. - [Modern JavaScript](https://lucasbittencourt.dev/blog/modern-javascript): Learn modern JavaScript concepts like optional chaining, rest - spread - nullish coalescing operators, immutable array methods, Object.groupBy, Set methods, iterator helpers, structuredClone and much more. - [React Performance](https://lucasbittencourt.dev/blog/react-performance): Learn how React renders, memoization, referential equality, the React Compiler, memo - useMemo - useCallback, why the key property matters, avoiding derived states and effects, transitions, code splitting and Server Components. ## MCP server - [MCP server](https://lucasbittencourt.dev/mcp): how to connect an AI assistant to this website with the Model Context Protocol, and the AI concepts behind it - MCP endpoint (Streamable HTTP, read-only, no authentication): https://lucasbittencourt.dev/api/mcp ## Optional - [Blog index](https://lucasbittencourt.dev/blog): all posts - [RSS feed](https://lucasbittencourt.dev/rss) - [Website source code](https://github.com/lucasgdb/lucasbittencourt.dev)