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• Software EngineerFundamentals, both sides of the stack, software design — and the interviews that get you hired.
• Frontend DeveloperFrom your first HTML tag to shipping fast, accessible React apps.
• Backend with GoDesign, build and ship production HTTP services in Go.
• Backend with Node.jsBuild production APIs in TypeScript on Node.js, from the event loop to deployment.
• Full-Stack DeveloperOwn a feature end to end: React in the browser, Node and PostgreSQL behind it, shipped as one.
• AI EngineerBuild reliable products on top of large language models.
• DevSecOps EngineerBuild security into every stage of how software is built and shipped.
• Learn to CodeNever programmed before? Start here and write real programs in Python.
• PythonFrom scripts to typed, tested, production Python: packages, async and web APIs.
• SQL & DatabasesQuery, model and tune relational databases with confidence.
• System DesignDesign systems that scale, stay correct and survive failure.
• RustMemory safety without a garbage collector — and the mental model that makes the compiler your ally.
• Git & CollaborationVersion control you actually understand — not just memorized commands.
• Data structuresSoftware Engineer · Arrays, hash maps, stacks, queues, trees, heaps and graphs — and what each operation costs.
• Algorithms & complexitySoftware Engineer · Big-O, sorting, binary search, recursion, BFS/DFS and dynamic programming.
• Clean codeSoftware Engineer · Naming, small functions, guard clauses instead of arrow code, and comments that earn their place.
• DRY, KISS, YAGNI & CQSSoftware Engineer · Coupling, cohesion and the rules of thumb that keep code simple.
• SOLID principlesSoftware Engineer · Five principles for code that bends instead of breaks, in Go and TypeScript.
• Design patternsSoftware Engineer · Strategy, adapter, decorator, observer, factory and options — and when not to use them.

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