Building a career as a software developer requires a practical approach to problem-solving and a willingness to understand existing code rather than treating it as a black box. Effective developers often work with established technologies like PostgreSQL, MySQL, Rails, or .NET, adapting solutions from sources like Stack Overflow and language models. However, curiosity and a deeper understanding of how web servers, databases, and operating systems function are also essential. This knowledge enables developers to make informed decisions when integrating or modifying existing code. Using large language models (LLMs) for coding isn't fundamentally different from utilizing frameworks or browsing Stack Overflow. While LLMs provide faster solutions, they can lead to rote copying without deeper comprehension. Developers who only engage with existing tools as black boxes tend to be less competitive in the job market. Companies that operate on a large scale, or those creating foundational technologies like databases or frameworks, prioritize hiring developers who understand software fundamentals. The trend in software development is to minimize reliance on large teams for coding tasks. LLMs fit into this trend, streamlining some processes. However, as more non-developers gain access to LLMs, the demand for skilled developers will persist, especially for roles that require a solid grasp of software principles. Positions that depend on core software fundamentals will remain vital, even as tools evolve. Those who enjoy software development should continue honing their skills, particularly in areas like compilers, databases, and operating systems, and seek out companies that tackle complex problems where these fundamentals are critical.