小红书服务端研发工程师(Hi Lab - 点点方向)
社招全职3年以上后端开发地点:北京 | 上海状态:招聘
任职要求
- 精通Go/Java/Rust/Python至少一种,具备扎实分布式系统与高并发服务开发经验(支撑过千万DAU优先); - 熟悉IM/长连接通信架构,理解消息分发、连接管理、心跳、路由等机制; - 深入掌握微服务架构、服务治理、缓存(Redis)、数据库(MySQL/分布式DB)、消息队列(Kafka/RocketMQ)、注册中心等; - 有系统稳定性治理与性能优化实战经验,熟悉容灾、多地多活、降级、熔断、限流等设计; - 熟悉Prometheus/Grafana/OpenTelemetry等可观测性工具栈,有实际落地经验; - 有云原生实践经验(K8s、Istio、服务网格等)优先; - 理解RAG、Function Call、Agent调用机制,有AI产品服务端经验加分; - 强烈的Owner意识与全局视角,能独立推动复杂系统设计与演进; - 优秀的跨团队协作与沟通能力,对AI…
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工作职责
【关于我们】 Hi Lab 是小红书核心AI 实验室,点点作为新一代生活场景AI搜索助手,依托海量小红书笔记 + 全网真实经验 + 深度思考大模型能力(DeepSeek等),为用户提供“精准避坑、超级实用、有画面感”的美食、旅行、购物、穿搭、生活答案。 支持多模态提问(文字/语音/拍照)、视频化回复、多轮追问,正在快速迭代成为年轻人日常的“生活搭子”。 加入Hi Lab,你将直接参与千万级DAU AI对话产品的服务端核心建设,与顶尖算法/客户端团队一起,打造高并发、高可靠的AI交互基础设施,推动AI真正懂生活、懂小红书! 【岗位职责】 - 负责点点AI对话产品服务端核心架构设计与开发,覆盖多轮对话流、用户体系、账号体系及第三方能力集成; - 设计并实现高可用对话分发与消息路由系统,支持千万级并发访问与长连接管理; - 构建用户画像、Memory上下文与个性化记忆体系,提升多轮交互的智能与连贯性; - 对接搜索、RAG、点评、电商等第三方能力,打造灵活、可扩展的工具调用与Function Call链路; - 建设全链路稳定性与容灾体系,推动Trace、Metrics、Logging、OpenTelemetry、多地多活等可观测性与高可用能力落地; - 参与容量规划、压测优化、性能调优与持续可观测建设,确保系统在高峰期丝滑稳定; - 驱动工程效率提升,包括CI/CD自动化、服务治理、云原生实践(K8s/Istio),保障线上SLA。 1、负责 AI 对话产品服务端核心架构设计与开发,涵盖对话流、用户体系、账号与三方能力等模块; 2、设计并实现高可用的对话分发与消息路由系统,支撑千万级并发访问; 3、构建用户画像与 Memory 管理体系,支持上下文增强与个性化记忆; 4、对接第三方能力(搜索、点评、电商等),构建灵活可扩展的工具调用体系; 5、建设全链路稳定性与容灾体系,推进 Trace / Metrics / Logging / 多地多活能力落地; 6、参与系统容量规划、压测优化与持续可观测性建设; 7、推动工程效率、CI/CD 与服务质量提升,保障线上可用性。
包括英文材料
Go+
https://www.youtube.com/watch?v=8uiZC0l4Ajw
学习Golang的完整教程!从开始到结束不到一个小时,包括如何在Go中构建API的完整演示。没有多余的内容,只有你需要知道的知识。
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.
Rust+
https://www.youtube.com/watch?v=BpPEoZW5IiY
In this comprehensive Rust course for beginners, you will learn about the core concepts of the language and underlying mechanisms in theory.
https://www.youtube.com/watch?v=lzKeecy4OmQ
Full Rust 101 Crash Course for beginners.
https://www.youtube.com/watch?v=rQ_J9WH6CGk
Python+
https://liaoxuefeng.com/books/python/introduction/index.html
中文,免费,零起点,完整示例,基于最新的Python 3版本。
https://www.learnpython.org/
a free interactive Python tutorial for people who want to learn Python, fast.
https://www.youtube.com/watch?v=K5KVEU3aaeQ
Master Python from scratch 🚀 No fluff—just clear, practical coding skills to kickstart your journey!
https://www.youtube.com/watch?v=rfscVS0vtbw
This course will give you a full introduction into all of the core concepts in python.
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
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
微服务+
https://learn.microsoft.com/en-us/training/modules/dotnet-microservices/
Microservice applications are composed of small, independently versioned, and scalable customer-focused services that communicate with each other by using standard protocols and well-defined interfaces.
https://microservices.io/
Microservices - also known as the microservice architecture - is an architectural style that structures an application as a collection of two or more services.
https://spring.io/microservices
Building small, self-contained, ready to run applications can bring great flexibility and added resilience to your code.
https://www.ibm.com/think/topics/microservices
Microservices, or microservices architecture, is a cloud-native architectural approach in which a single application is composed of many loosely coupled and independently deployable smaller components or services.
https://www.youtube.com/watch?v=CqCDOosvZIk
https://www.youtube.com/watch?v=hmkF77F9TLw
Learn about software system design and microservices.
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。
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
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.
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.
消息队列+
https://www.youtube.com/watch?v=xErwDaOc-Gs
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.
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.
还有更多 •••
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