京东后端开发工程师
社招全职5年以上软件开发岗地点:北京状态:招聘
任职要求
1.本科及以上学历,五年以上后端开发经验,有酒旅行业经验者优先; 2.扎实的计算机基础,拥有良好的编码习惯和素养,善于总结和思考,保持技术热情; 3.精通Java技术,熟练掌握JVM原理和机制,可排查和优化GC问题,具备一定的JVM性能调优经验; 4.熟练使用Java相关框架和工具并熟悉其原理,熟练使用各类中间件和数据库; 5.熟练掌握数据结构和算法、网络、操作系统等计算机基础知识; 6.深…
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工作职责
1.负责京东酒旅业务后端系统的架构设计、开发、确保系统的高性能、高可用与高度可扩展性,保障产品需求交付、系统稳定运行; 2.参与软件架构设计与讨论,构建行业报价数据库,保障报价信息完整性和及时性,对接行业供给提高产品丰富度,保障用户体验一致性,对齐行业先进的业务模型和技术能力; 3.深入理解相关业务需求和发展方向,采用适合的方案实现业务功能,保障新功能持续迭代; 4.持续跟进并解决系统运行中的技术问题,对性能瓶颈进行分析和优化,对技术风险进行预防和治理,保障系统稳定运行; 5.主导或参与跨团队技术方案沟通和设计,推动跨团队需求合作。
包括英文材料
学历+
后端开发+
https://www.youtube.com/watch?v=tN6oJu2DqCM&list=PLWKjhJtqVAbn21gs5UnLhCQ82f923WCgM
Learn what technologies you should learn first to become a back end web developer.
编程规范+
[英文] Google Style Guides
https://google.github.io/styleguide/
Every major open-source project has its own style guide: a set of conventions (sometimes arbitrary) about how to write code for that project. It is much easier to understand a large codebase when all the code in it is in a consistent style.
Java+
https://www.youtube.com/watch?v=eIrMbAQSU34
Master Java – a must-have language for software development, Android apps, and more! ☕️ This beginner-friendly course takes you from basics to real coding skills.
JVM+
https://www.freecodecamp.org/news/jvm-tutorial-java-virtual-machine-architecture-explained-for-beginners/
https://www.youtube.com/watch?v=e2zmmkc5xI0
GC+
[英文] Garbage Collection
https://craftinginterpreters.com/garbage-collection.html
The GC doesn’t throw away the memory, it reclaims it to be reused for new data.
https://learn.microsoft.com/en-us/dotnet/standard/garbage-collection/fundamentals
In the common language runtime (CLR), the garbage collector (GC) serves as an automatic memory manager.
https://www.oracle.com/webfolder/technetwork/tutorials/obe/java/gc01/index.html
This tutorial covers the basics of how Garbage Collection works with the Hotspot JVM.
https://www.youtube.com/watch?v=c32zXYAK7CI
How does memory management work? In C you had to manage things yourself, but modern languages take care of a lot of it for you.
性能调优+
https://goperf.dev/
The Go App Optimization Guide is a series of in-depth, technical articles for developers who want to get more performance out of their Go code without relying on guesswork or cargo cult patterns.
https://web.dev/learn/performance
This course is designed for those new to web performance, a vital aspect of the user experience.
https://www.ibm.com/think/insights/application-performance-optimization
Application performance is not just a simple concern for most organizations; it’s a critical factor in their business’s success.
https://www.oreilly.com/library/view/optimizing-java/9781492039259/
Performance tuning is an experimental science, but that doesn’t mean engineers should resort to guesswork and folklore to get the job done.
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