小红书【2026校招】后端开发工程师-多媒体技术
校招全职后端开发地点：北京状态：招聘
任职要求
1、本科及以上学历，计算机、软件工程等相关专业优先； 2、精通Java语言，具备扎实的数据结构和算法基础，熟悉多线程、网络编程、无锁编程及性能调优； 3、精通多线程编程，熟悉JVM，熟悉常见的开源分布式中间件、缓存、消息队列等，熟悉MySQL，熟悉Linux下的DevOps，拥有复杂系统架构设计能力； 4、具备良好的沟通技能和团队协作意识，有一定的项目管理经验，善于自主推动跨部门复杂项目的实施和较强的结果导向能力； 5、热爱技术，对代码质量和开发规范有近乎苛刻的要求，富有责任心，对业界最新动态有好奇心。
工作职责
1、参与负责小红书基础直播&互动直播业务后端核心服务的架构设计和改造，深入发掘和分析业务需求，撰写技术方案和系统设计，以及相关的代码开发； 2、接受高并发、海量数据的挑战，分析和发现系统的优化点，负责推动系统的性能和可用性的提升； 3、对现有业务系统的架构进行抽象和升级，构建全新通用的直播平台，提升整体的研发效率及问题排查效率； 4、定期进行技术前瞻性调研，研究分析业内主流产品技术实现，为团队引入创新的技术、创新的解决方案，用创新的思路解决问题。
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.
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
算法+
https://roadmap.sh/datastructures-and-algorithms
Step by step guide to learn Data Structures and Algorithms in 2025
https://www.hellointerview.com/learn/code
A visual guide to the most important patterns and approaches for the coding interview.
https://www.w3schools.com/dsa/
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!
网络编程+
https://www.youtube.com/watch?v=2HrYIl6GpYg
I will make a simple HTTP web server with the C Programming Language.
https://www.youtube.com/watch?v=8z6okCgdREo
This tutorial is for Gophers who have written a command line or an API application, but have little to no experience in lower-level concepts like reading and writing to sockets, working with channels, and managing multiple goroutines.
https://www.youtube.com/watch?v=bdIiTxtMaKA&list=PL9IEJIKnBJjH_zM5LnovnoaKlXML5qh17
https://www.youtube.com/watch?v=bzja9fQWzdA
Implement the ubiquitous TCP protocol that underlies much of the traffic on the internet!
[英文] 📺Network Programming with Python Course (build a port scanner, mailing client, chat room, DDOS)
https://www.youtube.com/watch?v=FGdiSJakIS4
Learn network programming in Python by building four projects. You will learn to build a mailing client, a DDOS script, a port scanner, and a TCP Chat Room.
https://www.youtube.com/watch?v=gntyAFoZp-E
https://www.youtube.com/watch?v=JiuouCJQzSQ
Explore the fundamentals of networking in Rust by building a simple TCP server.
https://www.youtube.com/watch?v=JRTLSxGf_6w
https://www.youtube.com/watch?v=sFizpxHkIlI
In this video we'll cover SOCKET PROGRAMMING in JAVA.
https://www.youtube.com/watch?v=sXW_sNGvqcU
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.
JVM+
https://www.freecodecamp.org/news/jvm-tutorial-java-virtual-machine-architecture-explained-for-beginners/
https://www.youtube.com/watch?v=e2zmmkc5xI0
中间件+
https://www.youtube.com/watch?v=1oWPUpMheGk
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
消息队列+
https://www.youtube.com/watch?v=xErwDaOc-Gs
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.
Linux+
https://ryanstutorials.net/linuxtutorial/
Ok, so you want to learn how to use the Bash command line interface (terminal) on Unix/Linux.
https://ubuntu.com/tutorials/command-line-for-beginners
The Linux command line is a text interface to your computer.
https://www.youtube.com/watch?v=6WatcfENsOU
In this Linux crash course, you will learn the fundamental skills and tools you need to become a proficient Linux system administrator.
https://www.youtube.com/watch?v=v392lEyM29A
Never fear the command line again, make it fear you.
https://www.youtube.com/watch?v=ZtqBQ68cfJc
DevOps+
https://roadmap.sh/devops
Step by step guide for DevOps, SRE or any other Operations Role in 2025
https://zhuanlan.zhihu.com/p/562036793
DevOps中的Dev指的是Development（开发），Ops指的是Operations（运维），用一句话来说，DevOps就是打通开发运维的壁垒，实现开发运维一体化。
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.
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