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Job Description
Your job will be to develop a part of a distributed system that serves the hospitality industry. The system consists of many domain-oriented microservices developed under a few cross-functional teams. You can bring a smile on the faces of thousands of people working in hotels across the globe.
職位描述
我們的酒店管理解決方案由多個(gè)面向領(lǐng)域的微服務(wù)（domain-oriented microservices）組成，并由數(shù)個(gè)跨職能團(tuán)隊(duì)共同開(kāi)發(fā)。您將參與開(kāi)發(fā)面向酒店行業(yè)的分布式系統(tǒng)的一部分。該系統(tǒng)由多個(gè)面向領(lǐng)域的微服務(wù)組成，由若干跨職能團(tuán)隊(duì)共同開(kāi)發(fā)。通過(guò)您的工作，您將為全球數(shù)以千計(jì)酒店員工的工作體驗(yàn)帶來(lái)改善。
Key Areas of Responsibilities
Designing, implementing and then maintaining new functionalities inside a living system
Designing scalable solutions within existing microservices ecosystem using Domain-Driven Design principles
Implement complex business logic for hotel management operations including reservations, billing, and reporting
Ensure backward compatibility while evolving system architecture
Design fault-tolerant components that handle high-volume hospitality data processing
Collaborate with product teams to translate business requirements into technical
specifications
主要職責(zé)范圍
1. 系統(tǒng)功能的開(kāi)發(fā)、實(shí)施與維護(hù)
運(yùn)用領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)（Domain-Driven Design）的原則，在現(xiàn)有的微服務(wù)（microservice）生態(tài)系統(tǒng)中設(shè)計(jì)可擴(kuò)展的解決方案。
實(shí)現(xiàn)復(fù)雜的酒店管理業(yè)務(wù)邏輯，包括預(yù)訂、費(fèi)用結(jié)算和報(bào)表功能。
在系統(tǒng)架構(gòu)不斷進(jìn)化的過(guò)程中，確保其兼容性。
設(shè)計(jì)容錯(cuò)組件，以應(yīng)對(duì)高吞吐量的數(shù)據(jù)處理任務(wù)。
與產(chǎn)品團(tuán)隊(duì)協(xié)作，將業(yè)務(wù)需求進(jìn)行技術(shù)轉(zhuǎn)化。
Building dedicated export solutions for 3rd parties
Design and implement robust APIs for external hotel management systems integration
Create data export mechanisms for property management systems, channel managers, and revenue management tools
Implement secure authentication and authorization for B2B integrations
Develop file-based export solutions supporting various formats (XML, JSON, CSV)
Ensure data consistency and reliability in external data exchanges
Manage API versioning and maintain backward compatibility for existing integrations
2. 為第三方構(gòu)建專用的數(shù)據(jù)導(dǎo)出解決方案 為與酒店管理系統(tǒng)對(duì)接的第三方系統(tǒng)設(shè)計(jì)并實(shí)現(xiàn)穩(wěn)健的 API 集成。
為酒店管理系統(tǒng)（PMS）、渠道管理系統(tǒng)（Channel Management）及收益管理工具創(chuàng)建數(shù)據(jù)導(dǎo)出機(jī)制。
為 B2B 集成實(shí)施安全的身份驗(yàn)證和授權(quán)機(jī)制。
開(kāi)發(fā)支持多種格式（XML, JSON, CSV）的基于文件的導(dǎo)出解決方案。
確保外部數(shù)據(jù)交換的一致性和可靠性。
管理 API 版本控制，并維護(hù)現(xiàn)有集成兼容性。
Building scalable aggregated data strategy for analytical and reporting purposes
Design efficient data aggregation pipelines for hotel performance analytics and business intelligence
Implement real-time and batch processing solutions for large-scale hospitality data
Create optimized data models for reporting on occupancy, revenue, and operational metrics
Develop ETL processes that handle complex hotel data transformations
Ensure data quality and consistency across multiple data sources
Collaborate with data analysts to understand reporting requirements and optimize query performance
3. 為分析和報(bào)表目的構(gòu)建可擴(kuò)展的數(shù)據(jù)聚合策略
設(shè)計(jì)高效的數(shù)據(jù)聚合管道，用于酒店經(jīng)營(yíng)分析和商業(yè)智能（BI）。
對(duì)于酒店大數(shù)據(jù)場(chǎng)景設(shè)計(jì)實(shí)時(shí)和批處理解決方案。
創(chuàng)建針對(duì)入住率、收入和運(yùn)營(yíng)指標(biāo)報(bào)表的優(yōu)化數(shù)據(jù)模型。
開(kāi)發(fā)處理復(fù)雜酒店數(shù)據(jù)轉(zhuǎn)換的 ETL（抽取、轉(zhuǎn)換、加載）流程。
確保來(lái)自多個(gè)數(shù)據(jù)源的數(shù)據(jù)質(zhì)量和一致性。
與數(shù)據(jù)分析師協(xié)作，理解報(bào)表需求并優(yōu)化查詢性能。
Performing code reviews daily and participating in code review process
Conduct thorough code reviews focusing on code quality, security, and performance
Ensure adherence to coding standards, SOLID principles, and established architectural patterns
Provide constructive feedback on implementation approaches and suggest improvements
Review database queries for optimization opportunities and potential performance issues
Validate proper error handling, logging, and monitoring implementation
Submit well-documented pull/merge requests with clear descriptions and context
Respond promptly to review feedback and implement suggested improvements
Engage in technical discussions about implementation approaches and design decisions
Follow established branching strategies and merge procedures
Ensure all code changes include appropriate unit and integration tests
Maintain high code coverage and quality metrics
4. 每日進(jìn)行代碼審查并參與評(píng)審流程
專注于代碼質(zhì)量、安全性和性能進(jìn)行徹底的代碼審查。
確保代碼符合編碼標(biāo)準(zhǔn)、SOLID 原則及既定的架構(gòu)模式。
就實(shí)現(xiàn)方法提供富有建設(shè)性的反饋并提出改進(jìn)建議。
審查數(shù)據(jù)庫(kù)查詢，尋找優(yōu)化機(jī)會(huì)并發(fā)現(xiàn)潛在的性能問(wèn)題。
驗(yàn)證錯(cuò)誤處理、日志記錄和監(jiān)控功能的正確實(shí)施。
提交帶有清晰描述和上下文的、文檔齊全的拉取/合并請(qǐng)求（Pull/Merge Requests）。
及時(shí)響應(yīng)審查反饋并落實(shí)改進(jìn)建議。 參與關(guān)于實(shí)現(xiàn)方法和設(shè)計(jì)決策的技術(shù)討論。
遵循既定的分支策略和合并流程。
確保所有代碼變更都包含適當(dāng)?shù)膯卧獪y(cè)試和集成測(cè)試。
保持較高的代碼覆蓋率和質(zhì)量。
Using advanced tools to optimize performance of SQL queries used in APIs and reports
Analyze and optimize complex PostgreSQL queries handling large hospitality datasets
Design efficient database indexes and partitioning strategies for time-series hotel data
Implement query optimization techniques including proper join strategies and subquery optimization
Use database profiling tools to identify and resolve performance bottlenecks
Monitor query execution plans and implement caching strategies where appropriate
Optimize Entity Framework queries and implement efficient data access patterns
5. 使用高級(jí)工具優(yōu)化 API 和報(bào)表中 SQL 查詢的性能
分析并優(yōu)化處理大型酒店數(shù)據(jù)集的復(fù)雜 PostgreSQL 查詢。
為時(shí)序酒店數(shù)據(jù)設(shè)計(jì)高效的數(shù)據(jù)庫(kù)索引和分區(qū)策略。
實(shí)施查詢優(yōu)化技術(shù)，包括適當(dāng)?shù)倪B接（Join）策略和子查詢優(yōu)化。
使用數(shù)據(jù)庫(kù)性能分析工具識(shí)別并解決性能瓶頸。
監(jiān)控查詢執(zhí)行計(jì)劃，并在適當(dāng)情況下實(shí)施緩存策略。
優(yōu)化 Entity Framework 查詢并實(shí)施高效的數(shù)據(jù)訪問(wèn)模式。
Working in collaborative and iterative software development process with agile team
Actively participate in Scrum ceremonies including daily standups, sprint planning, and retrospectives
Collaborate effectively with cross-functional teams including QA, Infrastructure, and Product Team people
Contribute to sprint planning by providing accurate effort estimates and technical insights
Adapt to changing requirements while maintaining code quality and delivery timelines
Practice continuous integration and deployment with automated testing and monitoring
Participate in incident response and post-mortem analysis for production issues
6. 在敏捷開(kāi)發(fā)的框架下進(jìn)行協(xié)作式、迭代式的軟件開(kāi)發(fā)
積極參與例會(huì)、迭代規(guī)劃和評(píng)審會(huì)議等。
與質(zhì)量保證（QA）、產(chǎn)品構(gòu)架以及產(chǎn)品團(tuán)隊(duì)等跨職能團(tuán)隊(duì)進(jìn)行有效協(xié)作。
通過(guò)提供準(zhǔn)確的工作量預(yù)估和技術(shù)洞察，參與迭代規(guī)劃。
在保持代碼質(zhì)量和交付時(shí)間線的前提下，適應(yīng)不斷變化的需求。
通過(guò)自動(dòng)化測(cè)試和監(jiān)控實(shí)踐持續(xù)集成與持續(xù)部署（CI/CD）。
參與生產(chǎn)環(huán)境問(wèn)題的事件響應(yīng)和事后分析（Post-mortem analysis）。
Technologies used:
C# 9, .NET Core - Latest C# features and modern .NET ecosystem
PostgreSQL (13+) - Advanced SQL features, JSON support, partitioning, and performance tuning
Microservices - Service-oriented architecture, inter-service communication, and distributed system patterns
Swagger - API documentation, testing, and client code generation
Docker - Containerization, orchestration, and deployment strategies
Redis - Caching, session management, and distributed data structures
Kafka - Event streaming, message queuing, and asynchronous communication between services
Elastic Search (nice to have) - Full-text search, log aggregation, and analytics
Visual Studio 2022 / Resharper / Rider - Professional development environment with advanced debugging and refactoring tools
技術(shù)需求
C#9,.NET Core：使用較新的 C#特性和現(xiàn)代.NET 生態(tài)系統(tǒng)。
PostgreSQL：高級(jí) SQL 特性、JSON 支持、分區(qū)及性能調(diào)優(yōu)。
微服務(wù)：面向服務(wù)的架構(gòu)、服務(wù)間通信及分布式系統(tǒng)模式。 Swagger：API 文檔生成、測(cè)試及客戶端代碼生成。
Docker：容器化、編排及部署策略。
Redis：緩存、會(huì)話管理及分布式數(shù)據(jù)結(jié)構(gòu)。
Kafka：事件流處理、消息隊(duì)列及服務(wù)間的異步通信。
Elastic Search（加分項(xiàng)）：全文搜索、日志聚合及分析。
Visual Studio 2022 / Resharper / Rider：配備高級(jí)調(diào)試和重構(gòu)工具的專業(yè)開(kāi)發(fā)
環(huán)境。
Qualifications
Strong verbal and written communication skills in English are required
Ability to communicate complex technical concepts to both technical and non-technical stakeholders
Experience in writing clear technical documentation and API specifications
Effective collaboration in international, distributed teams
Being fluent in Object-Oriented and Functional Programming paradigms
Deep understanding of OOP principles
Experience with functional programming concepts in C#
Knowledge of design patterns
Knowledge of .NET 8/9, Entity Framework
Proficiency in latest .NET features including minimal APIs, global using directives, and filescoped namespaces
Advanced Entity Framework Core knowledge including migrations, query optimization, and performance tuning
Experience with dependency injection, middleware, and ASP.NET Core pipeline
Strong experience with PostgreSQL
Advanced SQL skills including complex joins, window functions, and CTEs
Database design and normalization principles
Experience with PostgreSQL-specific features like JSON/JSONB, arrays, and custom data types
Knowledge of database performance tuning and query optimization
Good understanding and hands-on experience in database performance aspects
Index design and optimization strategies
Query execution plan analysis and optimization
Database monitoring and performance metrics analysis
Experience with connection pooling and transaction management
Capability of writing clean code along with tests
Test-driven development (TDD) and behavior-driven development (BDD) practices
Unit testing, integration testing, and end-to-end testing strategies
Code coverage analysis and quality metrics
Clean code principles and SOLID design patterns
Being an open-minded, proactive person
Willingness to learn new technologies and adapt to changing requirements
Initiative in identifying and solving problems before they impact the team
Collaborative approach to problem-solving and knowledge sharing
Proactive attitude and continuous improvement
Self-motivated approach to professional development
Regular participation in technical communities and staying updated with industry trends
Initiative in proposing and implementing process improvements
Minimum 3-year experience in similar position and minimum 5 years of experience in IT industry
Proven track record in senior backend development roles
Experience in leading technical initiatives and mentoring other developers
Demonstrated ability to work with complex, distributed systems
任職要求
英語(yǔ)能力：要求具備流利的英語(yǔ)口語(yǔ)和書(shū)面溝通能力，能夠向技術(shù)和非技術(shù)利益相 關(guān)者傳達(dá)復(fù)雜的技術(shù)概念；具備撰寫(xiě)清晰的技術(shù)文檔和 API 規(guī)范的經(jīng)驗(yàn)；能有效地在國(guó)際化的分布式團(tuán)隊(duì)中協(xié)作。
編程范式：精通面向?qū)ο螅∣OP）和函數(shù)式編程（FP）范式，對(duì) OOP 原則有深刻理 解，具備 C#函數(shù)式編程概念的經(jīng)驗(yàn)，并掌握設(shè)計(jì)模式。
.NET 技術(shù)：具備.NET 8/9 和 Entity Framework 的扎實(shí)經(jīng)驗(yàn)，精通.NET 特 性；高級(jí) Entity Framework Core 知識(shí)（包括遷移、查詢優(yōu)化和性能調(diào)優(yōu)）；具備依賴注入、中間件和 ASP.NET Core 管道的經(jīng)驗(yàn)。
PostgreSQL：具備豐富的 PostgreSQL 實(shí)戰(zhàn)經(jīng)驗(yàn)，擁有高級(jí) SQL 技能（包括復(fù)雜連接、窗口函數(shù)和 CTE）；掌握數(shù)據(jù)庫(kù)設(shè)計(jì)和規(guī)范化原則；具備 PostgreSQL 特定功能 （如 JSON/JSONB、數(shù)組和自定義數(shù)據(jù)類型）的經(jīng)驗(yàn)；擁有數(shù)據(jù)庫(kù)性能調(diào)優(yōu)和查詢優(yōu)化的知識(shí)。
數(shù)據(jù)庫(kù)性能：具備編寫(xiě)代碼及配套測(cè)試的能力，熟悉測(cè)試驅(qū)動(dòng)開(kāi)發(fā)（TDD）和行為驅(qū)動(dòng)開(kāi)發(fā)（BDD）實(shí)踐；掌握單元測(cè)試、集成測(cè)試和端到端測(cè)試策略；了解代碼覆蓋率分析和質(zhì)量指標(biāo)；遵循整潔代碼原則和 SOLID 設(shè)計(jì)模式。
軟性素質(zhì)：思維開(kāi)放、積極主動(dòng)，樂(lè)于學(xué)習(xí)新技術(shù)并適應(yīng)變化的需求；能主動(dòng)發(fā)現(xiàn)問(wèn)題并在其影響團(tuán)隊(duì)前解決；樂(lè)于協(xié)作解決問(wèn)題并分享知識(shí)；具備自我激勵(lì)的職業(yè)發(fā)展態(tài)度，定期參與技術(shù)社區(qū)并緊跟行業(yè)趨勢(shì)；能主動(dòng)提出并實(shí)施流程改進(jìn)方案。
工作經(jīng)驗(yàn)：至少 3 年同類職位經(jīng)驗(yàn)，且在 IT 行業(yè)擁有至少 5 年經(jīng)驗(yàn)；在高級(jí)后端開(kāi)發(fā)崗位上有可證實(shí)的業(yè)績(jī)；具備領(lǐng)導(dǎo)技術(shù)項(xiàng)目并指導(dǎo)其他開(kāi)發(fā)人員的經(jīng)驗(yàn)；具備處理復(fù)雜分布式系統(tǒng)的能力。
Nice To Have Skills:
Basics of Linux, Docker
Linux command line proficiency and system administration basics
Docker containerization, Docker Compose, and container orchestration
Domain-Driven Design
DDD concepts including bounded contexts, aggregates, and domain events
Experience with CQRS and Event Sourcing patterns
Command Query Responsibility Segregation implementation
Event sourcing architecture and event store management
Experience with event-driven architecture patterns
Experience with distributed systems and web services
Microservices communication patterns (synchronous and asynchronous)
Distributed transaction management and eventual consistency
Experience in AWS RDS PostgreSQL and other AWS database-related technologies is a plus
AWS RDS configuration, monitoring, and optimization
AWS database migration services and backup strategies
CloudWatch monitoring and performance insights
Experience in hospitality systems & familiarity with hospitality applications is a strong plus
Understanding of hotel operations including reservations, check-in/check-out, and billing
processes
Knowledge of hospitality industry standards and integrations (PMS, CRS, GDS)
Experience with hotel revenue management and reporting requirements
Familiarity with hospitality-specific data models and business rules
加分技能（Nice To Have）
Linux 與 Docker 基礎(chǔ)：熟練使用 Linux 命令行及系統(tǒng)管理基礎(chǔ)；具備 Docker 容器化、Docker Compose 及容器編排的經(jīng)驗(yàn)。
領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)（DDD）：了解 DDD 概念，包括限界上下文（Bounded Contexts）、聚合（Aggregates）和領(lǐng)域事件（Domain Events）。
CQRS 與事件溯源模式：具備命令查詢職責(zé)分離（CQRS）和事件溯源（Event
Sourcing）架構(gòu)及事件存儲(chǔ)管理的經(jīng)驗(yàn)。
分布式系統(tǒng)與 Web 服務(wù)：具備微服務(wù)通信模式（同步和異步）的經(jīng)驗(yàn)；了解分布式事務(wù)管理和最終一致性。
AWS 技術(shù)：具備 AWS RDS PostgreSQL 及其他 AWS 數(shù)據(jù)庫(kù)相關(guān)技術(shù)的經(jīng)驗(yàn)者優(yōu)先，包括 AWS RDS 配置、監(jiān)控與優(yōu)化；AWS 數(shù)據(jù)庫(kù)遷移服務(wù)及備份策略；AWS CloudWatch 監(jiān)控及性能洞察。
酒店系統(tǒng)經(jīng)驗(yàn)：具備酒店系統(tǒng)經(jīng)驗(yàn)并對(duì)酒店應(yīng)用熟悉者將被視為極大的優(yōu)勢(shì)，包括了解酒店運(yùn)營(yíng)（預(yù)訂、入住/退房、計(jì)費(fèi)流程）；熟悉酒店行業(yè)標(biāo)準(zhǔn)及集成（PMS, CRS, GDS）；了解酒店收益管理和報(bào)表要求；熟悉酒店特定的數(shù)據(jù)模型和業(yè)務(wù)規(guī)則。
年齡要求：25歲以上
職能類別：.NET
語(yǔ)言能力：英語(yǔ)-熟練計(jì)算機(jī)能力：熟練年齡要求：25歲以上 
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互聯(lián)網(wǎng)/電商--軟件開(kāi)發(fā)/智能信息化
100-499人
國(guó)內(nèi)上市公司
? ? 石基(股票代碼002153)成立于1998年，經(jīng)過(guò)近20年的發(fā)展，目前石基已成為中國(guó)酒店信息系統(tǒng)專業(yè)服務(wù)的領(lǐng)導(dǎo)者，同時(shí)逐步擴(kuò)張至餐飲與零售業(yè)領(lǐng)域，成為這些行業(yè)主要信息系統(tǒng)服務(wù)商之一。石基在酒店、零售的客戶占據(jù)中國(guó)高檔或規(guī)模以上客戶的60%至70%左右的市場(chǎng)份額，在中國(guó)餐飲市場(chǎng)居相對(duì)領(lǐng)先地位。客戶年收入總額超過(guò)人民幣5萬(wàn)億。? ? 自公司成立以來(lái)，石基經(jīng)歷過(guò)三次成功轉(zhuǎn)型。目前，石基正啟動(dòng)第四次轉(zhuǎn)型，致力于成為一家數(shù)據(jù)驅(qū)動(dòng)的大消費(fèi)行業(yè)應(yīng)用服務(wù)平臺(tái)運(yùn)營(yíng)商。石基正推出數(shù)據(jù)、IT解決方案和咨詢等平臺(tái)化服務(wù)。同時(shí)，石基也放眼全球，研發(fā)全球領(lǐng)先的產(chǎn)品和技術(shù)，加快全球化發(fā)展進(jìn)程。石基目前在中國(guó)主要城市及海外(如中國(guó)香港、新加坡、德國(guó)慕尼黑等)設(shè)有50多家子公司及辦事處，員工規(guī)模達(dá)到3000多人。? ? ? 石基新的發(fā)展方向：為增強(qiáng)公司現(xiàn)有業(yè)務(wù)的競(jìng)爭(zhēng)力，實(shí)現(xiàn)向ASP應(yīng)用服務(wù)提供商的方向發(fā)展。基于公司未來(lái)掌握國(guó)內(nèi)酒店大量高中端客戶源的基礎(chǔ)上，向酒店提供ASP應(yīng)用服務(wù)，向銀行提供信用卡結(jié)算業(yè)務(wù)，提供實(shí)時(shí)在線預(yù)訂處理業(yè)務(wù)將是公司發(fā)展的方向。??? ? 我們的使命是通過(guò)一體化的大消費(fèi)行業(yè)解決方案更好助力我們的用戶實(shí)現(xiàn)成功。我們提供在數(shù)據(jù)安全性、系統(tǒng)友好度和開(kāi)放接口等方面的保障，就是為了讓我們的用戶更好的為他們的客戶提供服務(wù)，實(shí)現(xiàn)卓越。? ? 通過(guò)投資酒店數(shù)據(jù)公司，我們能夠建立起全球數(shù)據(jù)平臺(tái)，為全球的酒店業(yè)用戶提供數(shù)據(jù)服務(wù)和其他數(shù)據(jù)賦能的解決方案。在實(shí)現(xiàn)這一目標(biāo)的過(guò)程中，成功開(kāi)發(fā)全球領(lǐng)先的酒店、餐飲、零售和休閑娛樂(lè)業(yè)云解決方案，并幫助現(xiàn)有用戶的系統(tǒng)走上云端是關(guān)鍵。? ? 我們的宗旨是為用戶提供領(lǐng)先的技術(shù)解決方案和平臺(tái)服務(wù)，讓用戶能夠?qū)Ｗ⒋蛟熳陨淼暮诵母?jìng)爭(zhēng)力，并不斷提供更優(yōu)質(zhì)服務(wù)，提升賓客體驗(yàn)。
