请问HN：在被裁员和经历职业倦怠后寻找工作。我应该关注什么？
大家好，
我在金融行业作为软件工程师工作了大约十年。我的大部分经验集中在老旧系统上，使用的技术包括Java、Python和React。我参与了多种项目——构建数据管道、仪表板和网页应用程序，同时也进行了相当多的现有系统的维护和增量改进。
我在2024年被裁员，之后休了一年职业假期。现在我正在规划我的下一步，目标是寻找高级软件工程师或高级数据工程师的职位。
在这段时间里，我希望提升自己的技能，增强个人竞争力，但我不确定该将精力集中在哪些方面以获得最佳效果。
网上的学习材料往往过于简单，更多地讨论语法而非概念或模式。我也觉得有些无聊，似乎自己已经“知道”这些内容，但没有足够的挑战性。
请问有什么好的书籍推荐，可以帮助我刷新知识并提升技能吗？
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Hi everyone,<p>I spent about a decade working in the finance industry as a software engineer. Most of my experience has been on brownfield systems, using technologies like Java, Python, and React. I’ve worked on a mix of things — building data pipelines, dashboards, and web applications — as well as doing a fair amount of maintenance and incremental improvements on existing systems.<p>I was laid off in 2024 and have taken a gap year career break. I’m now planning my next move and aiming to look for roles as either a Senior Software Engineer or Senior Data Engineer.<p>During this time, I’d like to upskill and strengthen my profile, but I’m unsure where to focus my effort for the best impact.<p>The online material is too trivial, talking about syntaxe rather than concepts or patterns. I also felt kinda bored like I already 'knew' them but didn't challenging enough.<p>What are the suggestions for good read to refresh and upskill?