美团后台开发专家
社招全职8年以上核心本地商业-美团平台地点：北京状态：招聘
任职要求
1.具有很强的coding能力，有一定的代码洁癖； 2.计算机基础扎实，具备良好的数据结构、设计模式、数据库、网络基础知识； 3.熟练使用常用研发工具，包括但不限于依赖管理打包管理工具Maven、版本控制工具Git等； 4.熟练掌握Java语言：熟悉面向对象、多线程、反射；了解Jvm调优、类加载、Nio/Aio、字节码增强等更佳； 5.熟悉Java技术栈：Spring体系、Tomcat/Jetty等容器、HttpComponents、Guava等； 6.熟悉MySQL应用开发，了解数据库事务隔离级别、索引原理、性能调优；对NoSQL有研究更佳； 7.了解常用中间件：包括但不限于消息队列、分库分表组件、定时调度、分布式配置等； 8.了解SOA架构，对RPC、序列化、服务治理有相应了解； 具备以下条件优先 1.有技术钻研精神，对于网络协议、高并发、大流量等有研究，对优秀开源项目源码有研究者优先； 2.有大型互联网（尤其是电商）领域的工作经验，有设计过面向用户端的复杂分布式系统者优先； 3.拥有与工作年限相称的技术广度/深度，有较强的逻辑思维能力，善于分析、归纳、描述、沟通、和解决问题； 4.做事有责任感和主动性，面对复杂业务问题，可以从技术和业务多角度推进，最终达成目标；
工作职责
1.负责美团App 增长营销体系下的大促、活动、任务、奖励功能开发； 2.能够主动挖掘业务痛点，从技术侧分析和驱动业务前进的视角来完成研发工作； 3.能够指导组内相关领域同事完成开发任务，制定培养计划，关注人的成长； 4.攻克技术难点，搭建高效、灵活、稳定、可扩展的后台系统，有带领团队经验的更佳；
包括英文材料
数据结构+
https://www.youtube.com/watch?v=8hly31xKli0
In this course you will learn about algorithms and data structures, two of the fundamental topics in computer science.
https://www.youtube.com/watch?v=B31LgI4Y4DQ
Learn about data structures in this comprehensive course. We will be implementing these data structures in C or C++.
https://www.youtube.com/watch?v=CBYHwZcbD-s
Data Structures and Algorithms full course tutorial java
设计模式+
https://liaoxuefeng.com/books/java/design-patterns/index.html
设计模式，即Design Patterns，是指在软件设计中，被反复使用的一种代码设计经验。使用设计模式的目的是为了可重用代码，提高代码的可扩展性和可维护性。
[英文] Design Patterns
https://refactoring.guru/design-patterns
Design patterns are typical solutions to common problems in software design. Each pattern is like a blueprint that you can customize to solve a particular design problem in your code.
https://www.youtube.com/watch?v=NU_1StN5Tkk
Design Patterns tutorial explained in simple words using real-world examples.
Maven+
https://liaoxuefeng.com/books/java/maven/index.html
Maven是一个Java项目管理和构建工具，它可以定义项目结构、项目依赖，并使用统一的方式进行自动化构建，是Java项目不可缺少的工具。
https://www.youtube.com/watch?v=Xatr8AZLOsE
You'll learn how to use Maven like a professional: installations, using the mvn wrapper, using Maven together with IDEs, and of course the Maven basics.
Git+
https://www.youtube.com/watch?v=rH3zE7VlIMs
Learn Git from start to finished in this full course written by ThePrimeagen.
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.
面向对象+
https://liaoxuefeng.com/books/java/oop/index.html
面向对象编程，英文是Object-Oriented Programming，简称OOP。
https://liaoxuefeng.com/books/python/oop/index.html
面向对象编程——Object Oriented Programming，简称OOP，是一种程序设计思想。
https://www.youtube.com/watch?v=SiBw7os-_zI
Learn the basics of object-oriented programming all in one video.
多线程+
https://liaoxuefeng.com/books/java/threading/basic/index.html
和单线程相比，多线程编程的特点在于：多线程经常需要读写共享数据，并且需要同步。
https://www.youtube.com/watch?v=_uQgGS_VIXM&list=PLsc-VaxfZl4do3Etp_xQ0aQBoC-x5BIgJ
https://www.youtube.com/watch?v=IEEhzQoKtQU
https://www.youtube.com/watch?v=mTGdtC9f4EU&list=PLL8woMHwr36EDxjUoCzboZjedsnhLP1j4
https://www.youtube.com/watch?v=TPVH_coGAQs&list=PLk6CEY9XxSIAeK-EAh3hB4fgNvYkYmghp
https://www.youtube.com/watch?v=xPqnoB2hjjA
This video is an introduction to multithreading in modern C++.
https://www.youtube.com/watch?v=YKBwKy5PrpQ
Rust threading is easy to implement and improves the efficiency of your applications on multi-core systems!
Spring+
https://liaoxuefeng.com/books/java/spring/index.html
Spring是一个支持快速开发Java EE应用程序的框架。它提供了一系列底层容器和基础设施，并可以和大量常用的开源框架无缝集成，可以说是开发Java EE应用程序的必备。
https://spring.io/guides/gs/rest-service
https://spring.io/quickstart
Level up your Java code and explore what Spring can do for you.
Tomcat+
https://pdai.tech/md/framework/tomcat/tomcat-x-design-web-container.html
我们通过学习如何设计一个最基本的web容器来看它需要考虑什么；进而在真正学习Tomcat时，多把重点放在它的顶层设计上，而不是某一块代码上, 思路永远比具体实现重要的多。
https://www.youtube.com/watch?v=rElJIPRw5iM
This content is about Tomcat, a popular web server used by Java programmers and system administrators.
MySQL+
https://juejin.cn/post/7190306988939542585
这是一篇 MySQL 通关一篇过硬核经验学习路线，包括数据库相关知识，SQL语句的使用，数据库约束，设计等。
[英文] MySQL Tutorial
https://www.mysqltutorial.org/
your go-to resource for mastering MySQL in a fast, easy, and enjoyable way.
https://www.youtube.com/watch?v=5OdVJbNCSso
MySQL SQL tutorial for beginners
https://www.youtube.com/watch?v=7S_tz1z_5bA
This beginner-friendly course teaches you SQL from scratch.
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.
NoSQL+
https://nosql-database.org/
Everything about NoSQL Systems – Types, Benefits, and Real-World Uses
https://piaosanlang.gitbooks.io/mongodb/content/section1.1.html
NoSQL(NoSQL = Not Only SQL )，即"不仅仅是SQL"，指的是非关系型的数据库。是对不同于传统的关系型数据库管理系统的统称。
https://www.youtube.com/watch?v=0buKQHokLK8
NoSQL databases can operate in multiple modes: as key-value store, document store or wide column store.
中间件+
https://www.youtube.com/watch?v=1oWPUpMheGk
消息队列+
https://www.youtube.com/watch?v=xErwDaOc-Gs
SOA+
https://www.ibm.com/think/topics/soa
SOA, or service-oriented architecture, defines a way to make software components reusable and interoperable through service interfaces.
[英文] SOA Tutorial
https://www.tutorialspoint.com/soa/index.htm
The Service Oriented Architecture is an architectural design which includes collection of services in a network which communicate with each other.
RPC+
https://javaguide.cn/distributed-system/rpc/rpc-intro.html
为什么要 RPC ？ 因为，两个不同的服务器上的服务提供的方法不在一个内存空间，所以，需要通过网络编程才能传递方法调用所需要的参数。并且，方法调用的结果也需要通过网络编程来接收。
https://www.youtube.com/watch?v=S2osKiqQG9s
This video is part of an 8-lecture series on distributed systems, given as part of the undergraduate computer science course at the University of Cambridge.
服务治理+
https://cloudnativecn.com/blog/istio-traffic-management-series-service-management-concept-theory/
通过阅读本文读者可以初步理解 Istio 流量治理的概念和相关知识框架。
https://juejin.cn/post/6844904006033080334
服务治理主要包括服务发现、负载均衡、限流、熔断、超时、重试、服务追踪等。我们今天要讲的，就是服务发现的内容。
高并发+
https://www.baeldung.com/concurrency-principles-patterns
In this tutorial, we’ll discuss some of the design principles and patterns that have been established over time to build highly concurrent applications.
https://www.baeldung.com/java-concurrency
Handling concurrency in an application can be a tricky process with many potential pitfalls. A solid grasp of the fundamentals will go a long way to help minimize these issues.
https://www.oreilly.com/library/view/concurrency-in-go/9781491941294/
You’ll understand how Go chooses to model concurrency, what issues arise from this model, and how you can compose primitives within this model to solve problems.
https://www.oreilly.com/library/view/modern-concurrency-in/9781098165406/
With this book, you'll explore the transformative world of Java 21's key feature: virtual threads.
https://www.youtube.com/watch?v=qyM8Pi1KiiM
https://www.youtube.com/watch?v=wEsPL50Uiyo
分布式系统+
https://www.distributedsystemscourse.com/
The home page of a free online class in distributed systems.
https://www.youtube.com/watch?v=7VbL89mKK3M&list=PLOE1GTZ5ouRPbpTnrZ3Wqjamfwn_Q5Y9A
JVM+
https://www.freecodecamp.org/news/jvm-tutorial-java-virtual-machine-architecture-explained-for-beginners/
https://www.youtube.com/watch?v=e2zmmkc5xI0
Jetty+
https://jetty.org/docs/jetty/12.1/operations-guide/begin/index.html
If you are new to Eclipse Jetty, read on to download, install, start and deploy web applications to Jetty.
https://www.baeldung.com/jetty-java-programmatic
Jetty is an HTTP server and servlet container designed to be lightweight and easily embeddable.
https://www.youtube.com/watch?v=9B45DGLmo1c
Eclipse Jetty 12 is the latest version of the open source project created in 1995 by Greg Wilkins.
https://zetcode.com/java/jetty/
This is Jetty tutorial. It is a beginner tutorial focused on doing some basic programming and administration of Jetty.
HttpComponents+
https://hc.apache.org/httpcomponents-client-4.5.x/quickstart.html
The below code fragment illustrates the execution of HTTP GET and POST requests using the HttpClient native API.
https://www.baeldung.com/apache-httpclient-cookbook
This cookbook shows how to use the Apache HttpClient in a variety of examples and use-cases.
Guava+
[英文] Guava
https://guava.dev/
Guava is a set of core Java libraries from Google that includes new collection types (such as multimap and multiset), immutable collections, a graph library, and utilities for concurrency, I/O, hashing, primitives, strings, and more!
[英文] Guava Series
https://www.baeldung.com/guava-series
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