美团Java软件工程师
社招全职2年以上食杂零售地点:深圳状态:招聘
任职要求
1. 本科及以上学历,计算机或者相关专业毕业,2年以上互联网研发工作经验,扎实的计算机专业基本功,拥有与年龄相匹配的技能和经验积累; 2. 精通Java语言,熟练掌握Spring、Spring MVC、Spring Boot等常用开发框架,了解JVM、多线程并发、网络IO、分布式、缓存、消息、搜索等; 3. 熟悉ZooKeeper、Kafka等各种中间件,对事务、锁、并发等实现机制有深入了解;熟悉SOA架构,对RPC、序列化、服务治理有相应了解; 4. 熟练掌握MySQL应用开发,数据库原理和常用的SQL优化,及Redis,熟悉主流消息队列Kafka(或RabbitMQ、RocketMQ)的原理、使用场景和方法,了解Elasticsearch的使用; 5. 具备高并发高流量的系统设计经验,熟悉相关的容错容灾方案和故障处理; 6. 具备较强的逻辑思维能力,有较强的分析问题、解决问题的能力; 7. 具备良好的团队合作精神和协调沟通能力; 具备以下条件优先 1.有大模型微调、使用、实践经验者优先; 2.有视觉AI模型部署、训练调优者优先; 3.有IoT(物联网)平台开发经验优先; 4. 了解物联网协议如:MQTT、CoAp等优先; 5. 参与过大型复杂分布式系统设计开发,熟悉CAP、一致性Hash、Paxos等理论,对设计高可用、高性能、可扩展、可伸缩系统有深刻理解者优先;
工作职责
1.负责零售业务各种基于AIoT技术的平台及解决方案的系统开发工作; 2.承接产品需求,参与后端系统设计和核心代码开发。产出技术方案、关注技术风险,交付高质量的设计、代码、自动化测试和相关文档。 3.持续优化系统架构,从容量评估、性能优化、压力测试等多方面,推动系统向更高效、更稳定、更可靠的方向不断前进。 4.与团队内外成员协作,通过沟通、协作、分享等方式赋能组织。
包括英文材料
学历+
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.
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.
Spring Boot+
https://spring.io/guides/gs/spring-boot
his guide provides a sampling of how Spring Boot helps you accelerate application development.
https://www.youtube.com/watch?v=Nv2DERaMx-4&list=PLzUMQwCOrQTksiYqoumAQxuhPNa3HqasL
The author teaches you how to use Spring Boot from a complete beginner, to building a REST API with a real database, Dockerising it and deploying it to the cloud.
开发框架+
[英文] Understanding Modern Development Frameworks: A Guide for Developers and Technical Decision-makers
https://www.freecodecamp.org/news/understanding-modern-development-frameworks-guide-for-devs/
JVM+
https://www.freecodecamp.org/news/jvm-tutorial-java-virtual-machine-architecture-explained-for-beginners/
https://www.youtube.com/watch?v=e2zmmkc5xI0
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!
缓存+
https://hackernoon.com/the-system-design-cheat-sheet-cache
The cache is a layer that stores a subset of data, typically the most frequently accessed or essential information, in a location quicker to access than its primary storage location.
https://www.youtube.com/watch?v=bP4BeUjNkXc
Caching strategies, Distributed Caching, Eviction Policies, Write-Through Cache and Least Recently Used (LRU) cache are all important terms when it comes to designing an efficient system with a caching layer.
https://www.youtube.com/watch?v=dGAgxozNWFE
ZooKeeper+
https://kubernetes.io/docs/tutorials/stateful-application/zookeeper/
This tutorial demonstrates running Apache Zookeeper on Kubernetes using StatefulSets, PodDisruptionBudgets, and PodAntiAffinity.
https://www.baeldung.com/java-zookeeper
Apache ZooKeeper is a distributed coordination service which eases the development of distributed applications.
[英文] Zookeeper Tutorial
https://www.tutorialspoint.com/zookeeper/index.htm
ZooKeeper is a distributed co-ordination service to manage large set of hosts.
Kafka+
https://developer.confluent.io/what-is-apache-kafka/
https://www.youtube.com/watch?v=CU44hKLMg7k
https://www.youtube.com/watch?v=j4bqyAMMb7o&list=PLa7VYi0yPIH0KbnJQcMv5N9iW8HkZHztH
In this Apache Kafka fundamentals course, we introduce you to the basic Apache Kafka elements and APIs, as well as the broader Kafka ecosystem.
中间件+
https://www.youtube.com/watch?v=1oWPUpMheGk
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。
SQL+
https://liaoxuefeng.com/books/sql/introduction/index.html
什么是SQL?简单地说,SQL就是访问和处理关系数据库的计算机标准语言。
https://sqlbolt.com/
Learn SQL with simple, interactive exercises.
https://www.youtube.com/watch?v=p3qvj9hO_Bo
In this video we will cover everything you need to know about SQL in only 60 minutes.
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.
Redis+
[英文] Developer Hub
https://redis.io/dev/
Get all the tutorials, learning paths, and more you need to start building—fast.
https://www.runoob.com/redis/redis-tutorial.html
REmote DIctionary Server(Redis) 是一个由 Salvatore Sanfilippo 写的 key-value 存储系统,是跨平台的非关系型数据库。
https://www.youtube.com/watch?v=jgpVdJB2sKQ
In this video I will be covering Redis in depth from how to install it, what commands you can use, all the way to how to use it in a real world project.
消息队列+
https://www.youtube.com/watch?v=xErwDaOc-Gs
RabbitMQ+
[英文] RabbitMQ Tutorials
https://www.rabbitmq.com/tutorials
These tutorials cover the basics of creating messaging applications using RabbitMQ.
https://www.youtube.com/watch?v=bfVddTJNiAw
RabbitMQ is a powerful message broker that can help you create resilient and scalable applications.
RocketMQ+
https://www.baeldung.com/apache-rocketmq-spring-boot
In this tutorial, we’ll create a message producer and consumer using Spring Boot and Apache RocketMQ, an open-source distributed messaging and streaming data platform.
ElasticSearch+
https://www.youtube.com/watch?v=a4HBKEda_F8
Learn about Elasticsearch with this comprehensive course designed for beginners, featuring both theoretical concepts and hands-on applications using Python (though applicable to any programming language). The course is structured in two parts: first covering essential Elasticsearch fundamentals including index management, document storage, text analysis, pipeline creation, search functionality, and advanced features like semantic search and embeddings; followed by a practical section where you'll build a real-world website using Elasticsearch as a search engine, working with the Astronomy Picture of the Day (APOD) dataset to implement features such as data cleaning pipelines, tokenization, pagination, and aggregations.
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
系统设计+
https://roadmap.sh/system-design
Everything you need to know about designing large scale systems.
https://www.youtube.com/watch?v=F2FmTdLtb_4
This complete system design tutorial covers scalability, reliability, data handling, and high-level architecture with clear explanations, real-world examples, and practical strategies.
大模型+
https://www.youtube.com/watch?v=xZDB1naRUlk
You will build projects with LLMs that will enable you to create dynamic interfaces, interact with vast amounts of text data, and even empower LLMs with the capability to browse the internet for research papers.
https://www.youtube.com/watch?v=zjkBMFhNj_g
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
CAP+
https://www.hellointerview.com/learn/system-design/core-concepts/cap-theorem
Master the fundamental tradeoffs between consistency and availability in distributed systems.
https://www.ibm.com/think/topics/cap-theorem
The CAP theorem says that a distributed system can deliver only two of three desired characteristics:
consistency, availability and partition tolerance (the ‘C,’ ‘A’ and ‘P’ in CAP).
https://www.youtube.com/watch?v=BHqjEjzAicA
Paxos+
https://lamport.azurewebsites.net/pubs/paxos-simple.pdf
The Paxos algorithm for implementing a fault-tolerant distributed system has been regarded as difficult to understand, perhaps because the original presentation was Greek to many readers.
https://paxos.systems/
Paxos algorithms are a family of consensus algorithms (or protocols) that are used in distributed systems to achieve consensus in the presence of crash failures.
https://www.scylladb.com/glossary/paxos-consensus-algorithm/
Paxos is a family of protocols for solving the problem of consensus in distributed networks.
高可用+
https://redis.io/blog/high-availability-architecture/
A high available architecture is when there are a number of different components, modules, or services that work together to maintain optimal performance, irrespective of peak-time loads.
https://www.ibm.com/think/topics/high-availability
High availability (HA) is a term that refers to a system’s ability to be accessible and reliable close to 100% of the time.
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