招外派上海爱立信职位
总计近20个职位，如果有兴趣，请发简历至1985@tsinghua.org.cn ;996747822@qq.com.
工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程。
薪水范围：月薪8000-16000.五险一金等福利。
先列出目录，方便大家查看，详情见后面的介绍。
1.Core- Network （CN） Software Developer核心网络开发工程师(招聘人数2，优先级别9)
2.Core- Network （CN） Test 核心网络测试工程师（招聘人数2，优先级9）
3.IP多媒体子系统（IMS）开发工程师（招聘人数10，优先级10）
4.IP多媒体子系统（IMS） Integration and Verification（ I&V）测试工程师（招聘人数3，优先级10）
5.AXE Software Developer爱立信交换机开发工程师（招聘人数0，优先级8）
6.AXE Function Test （FT）Engineer爱立信交换机功能测试工程师（招聘人数1，优先级8）
7.AXE System Test （ST） Engineer 爱立信交换机系统测试工程师（招聘数量：1，优先级：8）
8.Mobile TV（MTV） Software Engineer开发工程师/高级工程师（招聘数量：15，优先级：10）
9.IPTV Software Engineer软件开发工程师（招聘数量：30.优先级：10）
10.IPTV Integration & Verification（I&V）测试工程师（招聘人数30，优先级：10）
11.Business Communication Suite （BCS） Software Developr-Server商务通讯组件开发工程师（服务器端）(招聘人数：1，优先级：8)
12.Business Communication Suite （BCS） Software Developr- Mobile商务通讯组件开发工程师（手机端）（招聘人数：1，优先级：8）
13.Business Communication Suite （BCS）Integration and Verification（ I&V）商务通讯组件测试工程师（招聘人数：1，优先级：8）
14.Mobile Positioning System (MPS) Design Engineer移动定位系统开发工程师（招聘人数：5，优先级：10）
15.Mobile Positioning System (MPS) Integration & Verification（ I&V）移动定位系统测试工程师招聘人数：5，优先级：10）
16.Ericsson Multi Activation （EMA） Software Engineer爱立信多媒体产品开发工程师（招聘人数：1，优先级：9）
17.Ericsson Multi Activation (EMA) Integration and Verification I&V Engineer爱立信多媒体产品测试工程师（招聘人数：1，优先级：9）
18.SGSN-MME Software Designer /GPRS服务支持节点-MME开发工程师（招聘人数：5，优先级：10）
19.GGSN Integration and Verification I&V Engineer/GPRS服务支持节点测试工程师（招聘人数：5，优先级：10）
详细介绍：
职位一：Core- Network （CN） Software Developer核心网络开发工程师(招聘人数2，优先级别9)
一．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程。
二．工作背景介绍：MSS (Mobile Softswitch Solution)是 爱立信 Core Network Portfolio的一个关键战略产品，具体信息可以登录这个地址了解.
http://www.ericsson.com/ourportfolio/products/mobile-switching 三．工作描述：执行软件设计：包括分析客户的要求和建议制度的实施方案;编码和基本的测试，提供对客户的产品信息影响;开发设计在系统设计和实施过程中的文档;执行功能测试，包括测试的设计和测试执行;有助于在发展和完善的过程，包括确定和设计/开发工具。工作中会使用2种语言开发，包括PLEX（与C语言 相似）和ASA（与汇编语言相似）。
四：任职资格：本科或硕士学历，计算机科学或通信相关专业。必须具备至少2年经汇编语言和c语言和面向对象设计（OOD）的开发背景。具备移动核心网络的背景更好。具备Lean, Agile and SCRUM经验为佳。良好的英文书写和口语能力。
Responsibilities
Perform software design: analyze customer requirements and propose system implementation solutions; coding and basic test; provide the impact on the customer product information;
Develop design documentation during system design and implementation;
Perform function test including test design and test execution;
Contribute in process development and improvement, including identifying and designing/developing development tools.
Open position need to use PLEX (similar with C) and ASA (similar with assemble language) for development.
Qualifications
BS or MS degree in Computer science or Telecommunication is preferred.
Preferable Good knowledge in mobile core network
Minimum 2-year working experiences from software development
Preferable experience from Lean, Agile and SCRUM based development.
Knowledge of Assemble Language and C is a MUST
Knowledge of Object Oriented design (OOD) is a MUST;
Good interpersonal and communications skills
Good command of English in written and spoken form
Flexible mindset, with curiosity to learn and develop
Innovative and improvement driven
High capacity and ability to work under pressure
Good team player and self motivated
职位二：Core- Network （CN） Test 核心网络测试工程师（招聘人数2，优先级9）
一．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程，
二．工作背景描述：MSS (Mobile Softswitch Solution)是 爱立信 Core Network Portfolio的一个关键战略产品，具体信息可以登录这个地址了解.
http://www.ericsson.com/ourportfolio/products/mobile-switching 三．职位描述：研究需求说明书，编写&回顾测试规范，测试案例。编写测试脚本，执行测试案例记录测试结果，记录和跟踪并解决测试中的问题。提高测试效率，与跨部门的同事合作。
四：任职资格：本科或硕士学历，计算机科学或通信相关专业。必须具备白盒测试经验，必须具备2年以上通信产品的测试或者客户现场技术支持经验，功能测试，自动测试经验。良好的脚本基础，包括perl, python, shell/bash，具备Linux经验。具备脚本语言则优先考虑。
Responsibilities
Study requirement specifications
Write/review test specifications /test cases
Write test scripts
Execute test cases and document the results
Record and follow up the faults, verify the corrections.
Qualifications
Major in in Computer Science, Telecommunication, Information Technology.
Have white box testing experience.
Good experience/knowledge in function test and test automation
Good Scripting language knowledge (e.g. perl, python, shell/bash)
Familiar with Linux.
Good English communication skill
Good team work spirit
职位三：
一．工作背景描述：IP多媒体子系统（IMS），本质上说是一种网络结构，该项技术根植于移动领域，最初是3GPP为移动网络定义的，而在NGN的框架下，IMS应同时支持固定接入和移动接入。IMS商用解决方案涉及了很多不同的节点，如CSCF，HSS，MRF，MGCF，SBG等等，具体信息，请参考如下地址：
http://www.ericsson.com/ourportfolio/products/ims 二．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程
三．工作描述：1. IP多媒体子系统（IMS）系统的软件开发， C / C + +语言的编程。2.编写系统设计和实施阶段的设计文档，包括组件描述，用户案例模型。3.编写IP多媒体子系统（IMS）测试规范，测试软件，功能级别编写的IMS系统测试规范，测试软件和运行测试。
四．任职要求：•大学本科或以上：计算机，通讯或电子相关专业。
1年以上C/C++/Java/Erlang的丰富开发经验。具备Linux / Solaris OS的经验。
•具备以下经验，优先考虑： TTCN语言，Clearcase，IP网络，IMS架构&标准&协议，数据库，SIP, Radius, Diameter, RTSP, MTP/ISUP, H.323, and H.248，IPV6.
Responsibility
Software development for IMS system, coding in C/C++;
Design documentation like component description and use case modeling during system design and implementation.
Writing test specification, test software and running test in functional level for IMS system.
Requirements
University Bachelor or higher Degree in any of the following: Computer Science, Telecommunication, Information Technology or Electrical Engineering.
Solid experience on C/C++/Java/Erlang, more than 1 year.
Experience on TTCN is an advantage
Experience on Linux / Solaris OS.
Familiar with software version control tool, such as Clearcase.
Knowledge in IP networking is an advantage
Knowledge on IMS architecture, standards and protocols is an advantage
Knowledge on database is an advantage
Knowledge on SIP, Radius, Diameter, RTSP, MTP/ISUP, H.323, and H.248 is an advantage
Knowledge on IPV6 is an advantage.
Can work independently, easy to work with and strong team work spirit.
Good English communication skills (both in written and verbal) are important
Innovative and solution thinking abilities.
Open minded and willing to take challenge.
Experience on System design and/or BIG development project experience for more than two years is an advantage.
职位四：IP多媒体子系统（IMS） Integration and Verification（ I&V）测试工程师（招聘人数3，优先级10）
一．工作背景描述：IP多媒体子系统（IMS），本质上说是一种网络结构，该项技术根植于移动领域，最初是3GPP为移动网络定义的，而在NGN的框架下，IMS应同时支持固定接入和移动接入。IMS商用解决方案涉及了很多不同的节点，如CSCF，HSS，MRF，MGCF，SBG等等，具体信息，请参考如下地址：
http://www.ericsson.com/ourportfolio/products/ims 二．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程
三．工作描述：测试程师负责确保产品质量，确定测试方法和搭建测试环境，在规定的时间内完成所有的测试活动。包括：参加测试工作和分析，
设计和开发测试规范，自动化测试案例，执行测试，总结完整的测试报告，分析测试结果，安装测试环境与故障排除问题，处理客户相关的问题和认证/验收。例如FOA的，产品维护，客户支持，部署和安装调试活动。
四．任职要求：大学本科或以上：计算机，通讯或电子相关专业。
2年以上的测试经验。具备以下经验，优先考虑：IP多媒体子系统（IMS）或NGN背景，C/C++/Perl/Python/TTCN/Java编程经验，，IP网络，IMS架构&标准&协议，数据库，SIP, Radius, Diameter, RTSP, MTP/ISUP, H.323, and H.248，IPV6.
Responsibility
I&V engineer is responsible for ensuring product quality, securing test methods and test environment to fulfil all the assigned test activities within approved cost, time and quality frame.
Participate in test plan and analysis activity
Design and develop test specification, automate test cases
Execute test cases
Complete test report, analyze test results
Setup test environment and trouble shooting issues
Handle customer-related problems and Certification/acceptance. e.g. FOA, product maintenance, customer support, rollout and installation commissioning activities
Qualification
You are willing to ensure technical solutions are simple, reliable and cost effective, enjoy finding risks of product quality. You are glad to work with customer and can provide technical solutions based on customer's requirement. You are self-motivated, having good team work spirit, with the drive to solve problems and expand your knowledge.
University Bachelor or higher Degree in any of the following: Computer Science, Telecommunication, Information Technology or Electrical Engineering.
Bachelor degree in CS/EE/Telecom or equivalent (Master degree is a plus)
Minimum of 2+ years of relevant experiences in Integration and Verification.
Having IMS/NGN background and experiences is an advantage.
Any good programming exp. of C/C++/Perl/Python/TTCN/Java is preferable
Knowledge in IP networking is an advantage
Knowledge on IMS architecture, standards and protocols is an advantage
Knowledge on database is an advantage
Knowledge on SIP, Radius, Diameter, RTSP, MTP/ISUP, H.323, and H.248 is an advantage
Knowledge on IPV6 is an advantage.
English is fluent both written and orally.
Open-minded and flexible.
职位五：AXE Software Developer爱立信交换机开发工程师（招聘人数0，优先级8）
一．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程，
二．工作背景描述：爱立信交换机开发工程师其中AXE(Eric sson公司的每种产品均由三个字母组成，AXE代表的就是交换机， A-电话系统 X-交换系统 E-程控的)，相关信息，可以参考如下网址：Fixed Switching 固定交换
http://www.ericsson.com/ourportfolio/products/fixed-switching Circuit Switching 环路交换
http://www.ericsson.com/ourportfolio/products/circuit-switching?nav=fgb_101_506 三．职位描述：执行软件设计：包括分析客户的要求和建议制度的实施方案;编码和基本的测试，提供对客户的产品信息影响;，开发设计在系统设计和实施过程中的文档;，执行功能测试，包括测试的设计和测试执行;有助于在发展和完善的过程，包括确定和设计/开发工具。工作中会使用2种语言开发，包括PLEX（与C语言 相似）和ASA（与汇编语言相似）。
四：任职资格：本科或硕士学历，计算机科学或通信相关专业。必须具备汇编语言和c语言和面向对象设计（OOD）的开发背景。具备移动核心网络的背景更好。至少2年经验的软件开发，具备Lean, Agile and SCRUM经验为佳。良好的英文书写和口语能力。
Responsibilities
Perform software design: analyze customer requirements and propose system implementation solutions; coding and basic test; provide the impact on the customer product information;
Develop design documentation during system design and implementation;
Perform function test including test design and test execution;
Contribute in process development and improvement, including identifying and designing/developing development tools.
Open position need to use PLEX (similar with C) and ASA (similar with assemble language) for development.
Qualifications
BS or MS degree in Computer science or Telecommunication is preferred.
Preferable Good knowledge in mobile core network
Minimum 2-year working experiences from software development
Preferable experience from Lean, Agile and SCRUM based development.
Knowledge of Assemble Language and C is a MUST
Knowledge of Object Oriented design (OOD) is a MUST;
Good interpersonal and communications skills
Good command of English in written and spoken form
Flexible mindset, with curiosity to learn and develop
Innovative and improvement driven
High capacity and ability to work under pressure
Good team player and self motivated
职位六：AXE Function Test （FT）Engineer爱立信交换机功能测试工程师（招聘人数1，优先级8）
一．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程，
二．工作背景描述：爱立信交换机开发工程师其中AXE(Eric sson公司的每种产品均由三个字母组成，AXE代表的就是交换机， A-电话系统 X-交换系统 E-程控的)，相关信息，可以参考如下网址：Fixed Switching 固定交换
http://www.ericsson.com/ourportfolio/products/fixed-switching Circuit Switching 环路交换
http://www.ericsson.com/ourportfolio/products/circuit-switching?nav=fgb_101_506 三．职位描述：研究需求说明书，编写&回顾测试规范，测试案例。编写测试脚本，执行测试案例记录测试结果，记录和跟踪并解决测试中的问题。
四：任职资格：本科或硕士学历，计算机科学或通信相关专业。必须具备白盒测试经验，功能测试，自动测试经验。良好的脚本基础，包括perl, python, shell/bash，具备Linux经验。
Responsibilities
Study requirement specifications
Write/review test specifications /test cases
Write test scripts
Execute test cases and document the results
Record and follow up the faults, verify the corrections.
Qualifications
Major in in Computer Science, Telecommunication, Information Technology.
Have white box testing experience.
Good experience/knowledge in function test and test automation
Good Scripting language knowledge (e.g. perl, python, shell/bash)
Familiar with Linux.
Good English communication skill
Good team work spirit
职位七：AXE System Test （ST） Engineer 爱立信交换机系统测试工程师（招聘数量：1，优先级：8）
一．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程，
二．工作背景描述：爱立信交换机开发工程师其中AXE(Eric sson公司的每种产品均由三个字母组成，AXE代表的就是交换机， A-电话系统 X-交换系统 E-程控的)，相关信息，可以参考如下网址：Fixed Switching 固定交换
http://www.ericsson.com/ourportfolio/products/fixed-switching Circuit Switching 环路交换
http://www.ericsson.com/ourportfolio/products/circuit-switching?nav=fgb_101_506 三．职位描述：执行测试分析，测试规范，脚本语言，确保测试质量，提高测试效率，与跨部门的同事合作。
四：任职资格：本科或硕士学历，计算机科学或通信相关专业。必须具备2年以上通信产品的测试或者客户现场技术支持经验，具备测试的扎实理论基础和方法论。具备测试和改编测试工具的能力，具备脚本语言则优先考虑。
Responsibilities
Test analysis, test specification, scripting, execution
Participate in test and support strategies development
Participate in test quality assurance
Participate in improvements for test efficiency
Working as part of test team across multiple international sites
Qualifications
Bachelor degree or above, major in Computer Science, Telecommunication, Electrical Engineering or similar.
At least two year relevant testing or troubleshooting or on-site customer support experience in telecommunication products.
Good knowledge of common test methodologies.
Able to use/adapt state of the art Testing tools. (Scripting languages is a plus)
Ability to learn new technology quickly and apply to work tasks.
Open minded and willing to accept challenges.
Good oral and written English communication skills and be able to express technical concepts in clear, concise terms.
A good team player.
职位八：Mobile TV（MTV） Software Engineer开发工程师/高级工程师（招聘数量：15，优先级：10）
一．工作背景描述：开发爱立信的TV产品（移动电视，网络电视，有线电视和IP电视（IPTV），执行软件设计：从需求分析，系统设计和实现，与欧洲和美国的同事合作，以确保以优良的产品质量。执行功能测试，包括测试设计和测试执行，全球发布的软件故障排除，如果有必要需求在不同的国家出差。
二．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程
三．任职要求：招聘的职位有2个不同的level，普通开发工程师和高级工程师。要求分别如下:
1.普通开发工程师的任职要求：大学本科或以上：计算机，通讯或电子相关专业,必须具备面向对象设计（OOD）的知识，了解面向对象的设计语言，例如UML, 必须具备网络编程和多线程编程的经验,具备1.5年以上Java编程的丰富经验,同时具备 C ++编程经验有限考虑,具备 XML编程经验, 丰富经验的UNIX操作系统（Linux或Solaris），包括但不限于shell编程，网络服务的配置和其他系统管理工作。熟悉网络结构和协议，例如TCP / IP，UDP，HTTP，DIAMETER .
2. 高级工程师的任职要求：大学本科或以上：计算机，通讯或电子相关专业, •系统设计的经验，2年以上大型项目经验,具备GPRS/ WCDMA/ LTE系统架构的理论基础,。在TV 领域内具备扎实的经验,例如. DVB 标准, MBMS 相关标准, CA 技术, CDN技术等相关领域,具备java脚本Java script与JSP经验。具备以下方面基础,则优先考虑,: J2EE, Web Services, Spring, Struts, Hibernate,,熟悉网络协议Video streaming, FLUTE, RTP, RTCP, RTSP, MBMS, HTTP Streaming, RTMP (Flash Streaming), DVB-H, CMMB and Video CODEC,
Qualifications
Required Qualifications and Skills for Software Engineer
University Bachelor or Master Degree in any of the following: Computer Science, Information Technology or Electrical Engineering. More than one year experience in related field is required
Knowledge of Object Oriented design (OOD) is a MUST, understand OO design language, e.g. UML
Solid experience on Java programming for more than 1.5 years; C++ programming experiences will be the advantage.
Solid knowledge on XML programming
Solid experience on the UNIX OS (Linux or Solaris), including but not limited to shell programming, network service configuration and other system administration work.
Familiar with the network architecture and protocol, e.g. TCP/IP, UDP, HTTP, DIAMETER
Solid experience on the network troubleshooting.
Experience on Network programming and Multi-thread programming is a must.
Preferred Qualification and Skills for Sr. Software Engineer
Experience on system design, large development project experience for more than two years is an advantage
Good knowledge and basic understanding in GPRS/WCDMA/LTE system architecture.
Solid knowledge in TV domain, e.g. DVB standards, MBMS related standards, CA technology, CDN technology and the related business logic.
Knowledge on J2EE, Web Services, Spring, Struts, Hibernate etc. is advantage
Knowledge of the following network protocols: Video streaming, FLUTE, RTP, RTCP, RTSP, MBMS, HTTP Streaming, RTMP (Flash Streaming), DVB-H, CMMB and Video CODEC is an advantage
Experience with Java script and JSP
Other Soft Skills
Basic knowledge of Software Engineering such as Agile, streamline and RUP
Understand the Agile way of working
Good English communication skills (both in written and verbal), CET-4 certification is mandatory.
Can work independently, easy to work with and strong team work spirit
Ability to learn new technology quickly and apply to work tasks
Innovative and solution thinking
Open minded and willing to take challenges
职位九：IPTV Software Engineer软件开发工程师（招聘数量：30.优先级：10）
一．工作背景描述：应用领先的技术，开发爱立信公司的移动电视和/或IPTV产品（应用C + +和/或Java编程语言），执行软件设计：分析客户的要求和设计实施方案;处理产品定制或产品维护工作;执行故障排除，设计文档，包括组件描述和用户案例分析，在系统设计和实施过程中执行功能测试，包括测试设计和测试执行
二．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程
三．任职要求：大学本科或以上：计算机，通讯或电子相关专业。
1年以上的相关经验。1年以上 Java EE and /or C++开发经验。具备面向对象OOD的经验，具备Java script 和JSP经验，具备以下经验，优先考虑：Hibernate 和 Spring，ACE经验，从事过系统设计或大型项目开发背景，Web service, XML背景，具备以下基础：Video streaming, RTP, RTCP, RTSP, MBMS, HTTP Streaming, RTMP (Flash Streaming), DVB-H and Video CODEC，具备通讯的背景，包括GSM/GPRS 和 WCDMA系统，网络编程和多线程编程，熟悉Rose 模型, 理解 UML 概念 和 RUP 流程。
Description
Work with leading edge technology, developing Ericsson's Mobile TV and/or IPTV product (coding in C++ and/or Java)
Perform software design: analyze customer requirements and propose system implementation solutions; track requirements all the way till requirements are fulfilled (when enough experience is gained)
Handle product customization or Product Maintenance work; perform trouble-shooting
Design documentation such as component description and use case modeling during system design and implementation
Perform function test including test design and test execution
Qualifications
University Bachelor or Master Degree in any of the following: Computer Science, Information Technology or Electrical Engineering. More than one year experience in related field is required
Solid experience on Java EE and /or C++ more than one year
Experience on Hibernate and Spring are advantages
Experience on ACE is an advantage
Experience on System design and/or big development project experience for more than two years is an advantage
Experience on Web service, XML is an advantage
Knowledge of the following: Video streaming, RTP, RTCP, RTSP, MBMS, HTTP Streaming, RTMP (Flash Streaming), DVB-H and Video CODEC is an advantage
Knowledge of Telecommunications (GSM/GPRS and WCDMA system) is an advantage
Knowledge of Solaris Platform and Operating system is an advantage
Experience with Java script and JSP
Experience on Network programming and Multi-thread programming is an advantage
Knowledge of Object Oriented design (OOD) is a MUST
Basic knowledge of Software Engineering
Familiar with Rose Model, understand UML concept and RUP process
Understand the Agile way of working
Good English communication skills (both in written and verbal), CET-4 certification is mandatory.
Can work independently, easy to work with and strong team work spirit
Ability to learn new technology quickly and apply to work tasks
Innovative and solution thinking
Open minded and willing to take challenges
职位十：IPTV Integration & Verification（I&V）测试工程师（招聘人数30，优先级：10）
一．工作背景描述：建立，整合，和测试端对端的IPTV环境，包括试验环境和客户环境。参加所有的测试工作，包括测试计划，环境搭建，设计和执行测试案例，回归和系统测试，与相关联部门合作，包括系统管理部，系统开发部，现场服务部门等。与公司的合作伙伴，OEM厂商合作，对全球的客户进行包括售前和售后的技术支持。
二．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程
三．任职要求：大学本科或以上：计算机，通讯或电子相关专业。2年以上的相关领域的测试经验。必须具备Unix系统平台的经验，熟悉下列语言中的至少一种：TCL/Expect, Perl, Python, Shell, Java，熟悉Oracle数据库，熟悉软件测试，包括测试流程，和测试理论。具备网络协议，IP, TCP, UDP.的经验，包括streaming 协议，如RTSP, SIP。具备以下经验则优先考虑：QAM相关策略，包括Edge QAM, MUX等。了解任何CA/DRM产品，了解STB 集成测试和熟悉STB 信息控制或中间件架构。具备Tandberg产品经验。
Description
Setup, integrate and test end-to-end IPTV environment including lab environment and customer environment.
Participate in all test activities including test plan, environment setup, design and execution of test cases , regression and system test.
Work within cross functional team including system management, develop, documentation, onsite service.
May work with external partners and OEM vendors. Provide technical assistance to global customers in both pre and post sales situations.
Qualifications
University Bachelor or Master Degree in any of the following majors: Computer Science, Telecommunication, Electrical Engineering with 2~4 years working experience in related field is required
Familiarity with Unix OS is required;
Familiarity with at least one languages: TCL/Expect, Perl, Python, Shell, Java;
Familiarity with common Oracle DB.
Knowledge of software testing, including test process and test methodologies
Solid understanding and hands-on knowledge of network protocols including IP, TCP, UDP. Experience with streaming protocols (RTSP, SIP)
Knowledge/experience with any of the following is a big plus:
QAM related device (EdgeQAM, MUX, etc)
Best-of-breed back office products such as Open Stream
Any CA/DRM product
STB integration testing and familiar with STB message control/middleware infrastructure
Experience with Tandberg product.
Can work independently, easy to work with and strong team work spirit.
Ability to learn new technology quickly and apply to work tasks.
Open minded and willing to take any challenge.
Good English communication skills (both in written and verbal), able to express own thinking clearly.
职位十一： Business Communication Suite （BCS） Software Developr-Server商务通讯组件开发工程师（服务器端）(招聘人数：1，优先级：8)
一．工作背景描述：Business Communication Suite （BCS） Software Developr-Server商务通讯组件开发部门，为企业客户开发通信应用和提供服务。
二．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程
三．工作职责：运用Jave/JEE，进行开发，具备电信应用服务器背景。负责从需求到交付阶段开发高质量的软件产品（应用服务器端），负责整个流程的分析，设计，验证，示范和维护等各个环节。积极参与软件设计环境的搭建和设计，支持销售，系统集成，产品部署和产品与客户的项目管理中涉及的技术问题。
四：任职要求：大学本科或以上：计算机，通讯或电子相关专业。精通OOA/OOD和设计模式，精通java开发语言，精通Spring, Hibernate, Struts 和J2EE平台，精通UNIX 或者 Linux和相关的数据库系统。具备以下经验，则优先考虑：IMS, SIP signaling, JSR 289 ，Solaris平台经验，Oracle数据库经验。
Description
As a software engineer in product BCS - business communication suite, you are working with cut-edge technology, to produce the most advanced communication applications and services towards enterprise users.
As a member of an agile team, you are:
Responsible to produce and document high quality software products (application servers) from requirement to delivery
Perform analysis, design, verification, demonstration and maintenance in an agile way of working.
Actively involved in the establishment and development of software design environment
Supports sales, system integration, product deployment and product management with complicated technical issues in customer projects.
Qualifications
In short, first JD is main targeting for the candidate with Jave/JEE competence, with telecom application server background.
Bachelor or Master degree in computer science, information technology or related area
Excellent knowledge in OOA/D, and competent in design patterns
Excellent knowledge in programming languages such as JAVA.
Excellent knowledge in Spring, Hibernate, Struts and J2EE platform.
Knowledge in IMS, SIP signaling, JSR 289, is preferred
Excellent knowledge of UNIX or Linux and of relational and object database systems, Solaris and Oracle is preferred.
A good team player with strong willingness to support team members
Fluent in written and oral English communication
职位十二：Business Communication Suite （BCS） Software Developr- Mobile商务通讯组件开发工程师（手机端）（招聘人数：1，优先级：8）
一．工作背景描述：Business Communication Suite （BCS） Software Developr-Mobile商务通讯组件开发部门，为企业客户开发通信应用和提供服务。
二．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程
三．工作职责：主要为iphone手机客户端，或者电脑客户端开发软件，具备电信应用服务器背景。负责从需求到交付阶段开发高质量的软件产品（应用服务器端），负责整个流程的分析，设计，验证，示范和维护等各个环节。积极参与软件设计环境的搭建和设计，支持销售，系统集成，产品部署和产品与客户的项目管理中涉及的技术问题。
四：任职要求：大学本科或以上：计算机，通讯或电子相关专业。精通Objective C, C++, C#, or Java编程语言，具备智能手机平台，如iPhone, 或者PC/windows平台的丰富经验，具备移动数据应用和它的服务管理环境经验。具备以下经验则优先考虑：.NET经验, WPF经验，IMS, SIP signaling等。
Description
As a software engineer in product BCS - business communication suite, you are working with cut-edge technology, to produce the most advanced communication applications and services towards enterprise users.
As a member of an agile team, you are:
Responsible to produce and document high quality software products (mobile: iPhone or PC client application) from requirement to delivery
Perform analysis, design, verification, demonstration and maintenance in an agile way of working.
Actively involved in the establishment and development of software design environment
Supports sales, system integration, product deployment and product management with complicated technical issues in customer projects.
Qualifications
The JD is targeting for the candidates with iPhone client development, or PC/Windows application (using .NET WPF technology). Telecom background is advantage
Bachelor or Master degree in computer science, information technology or related area
Good knowledge of mobile data application and its service management environment
Excellent knowledge in the programming languages, i.e, Objective C, C++, C#, or Java.
Solid experience in the smart phone platform development: iPhone, or PC/windows platform with stong .NET, WPF competence are preferred
Knowledge in IMS, SIP signaling, is preferred
A good team player with strong willingness to support team members
Fluent in written and oral English communication
职位十三：Business Communication Suite （BCS）Integration and Verification（ I&V）商务通讯组件测试工程师（招聘人数：1，优先级：8）
一．工作背景描述：Business Communication Suite （BCS） Software Developr-Mobile商务通讯组件开发部门，为企业客户开发通信应用和提供服务。
二．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程
三．工作职责：确保产品质量，选择测试方法和搭建测试环境。在规定的时间内完成所有的测试工作。定义测试范围，设计和开发测试方法/环境，执行测试案例，完成测试报告，分析测试结果，进行故障解决，设计自动化测试框架和应用。
四：任职要求：大学本科或以上：计算机，通讯或电子相关专业。具备通信或者IT领域2年以上测试经验，具备无线通信系统，IP多媒体系统应用和服务背景，具备声频/电话会议解决方案背景，具备Unix/Linux平台经验或者相关平台，如Sun服务器，Sun刀片服务器，华为平台等。
Description
We are looking for experienced verification engineer, working for Ericsson unified business communication solution.
You shall have good hands-on verification experiences in wireless communication system, IMS/SIP, and unified communication solutions, audio/video conferening solution.
Responsibilities
Ensuring product quality, securing test mothod and test environment to fulfill all the assigned test activities within approved cost, time and quality frame.
Define integration & verification scope
Design and develop test mothod/environment
Execute test cases
Complete test report, analyze test results
Trouble shoorting when needed
Design automation testing framework and apply it when applicable
Qualifications
Good knowledge of wireless communication system, IMS system (SIP signaling), multimedia application and services
Good knowledge of Unified communication, audio/video conferencing solution
Good knowledge on Unix/Linux environment on industry generic platforms, for example, Sun Sparc Server, Sun Blade, or similar HW platform from other vendors.
More than 2 years verification working experience in telecom or IT industry.
Bachelor degree or above, major in electronic engineering or computer science, communications or similar
Fluent in both written and spoken English
Self-motivated, passionate, with the drive to solve problem
职位十四：Mobile Positioning System (MPS) Design Engineer移动定位系统开发工程师（招聘人数：5，优先级：10）
一．工作背景描述：移动定位系统是一个集合GPS导航，GPS定位，个人安全及追踪于一体的全方位位置服务系统。由一个多功能AGPS手机和N个AGPS便携式定位终端组成，为家庭、公安、交通、物流等用户提供了一个方便、快捷、经济、灵活和贴身的位置服务系统。 移动定位技术是基于目前较为普及的GSM／GPRS无线网络覆盖对手机终端进行实时位置捕捉的新型技术，只要手机开机又能收得到网络信号，那么他所处的位置便随时能被掌握。无线移动网络是以小区(蜂窝)作为最小位置单位的，所以当手机处在不同的小区或在小区之间进行移动切换时，不同的小区号便确认了手机的实际位置。由于移动网络的小区号是全球惟一的，所以所对应的实际地理位置也是全球惟一的。移动定位技术在电子地图的显示下或在地理信息数据库的支持下，实时地显示、跟踪、处理单个、多个、群组的人、车或物。这种技术可以广泛地应用在大众无线数据信息娱乐服务或行业领域，应用于大众无线数据领域。
二．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程
三．任职要求：大学本科或以上：计算机，通讯或电子相关专业。1年以上的相关领域的工作经验。必须具备Unix/Linux系统平台的C++开发经验和面向对象OOD经验，具备socket编程和多线程编程经验，具备Solaris平台经验，具备SS7 stack，数据库经验则优先考虑。必须具备通讯背景，除非有很强的编程经验。
Product introduction
Mobile Positioning System (MPS) helps the service provider tailor content to meet users' needs. It interacts with its clients using defined and secure interfaces, and will provide business model flexibility, while protecting your network from abuse and overload.
MPS is made up of the Serving Positioning Center (SMPC), Gateway Positioning Center (GMPC) and the Zone Evaluation Location Server (ZELS).
In addition, MPS utilizes network features in core and radio network nodes, such as Home Location Register (HLR), Mobile Switching Center (MSC) and Serving GPRS Support Node (SGSN).
MPS can be used in GSM, WCDMA and LTE networks, providing a smooth migration path.
As a key component of our location-based service offering, MPS supports many new applications that can introduce the user’s location data to messaging services. These easy-to-use services provide more personalized user experiences including content tailored to the individual user’s whereabouts, enhancing satisfaction and usage.
MPS is easily deployed in networks – with or without LBS-standard interfaces. This provides rapid and scalable network coverage with lower investment costs and efficient networking.
MPS also provides cost-effective utilization of system resources and applications by serving several mobile networks simultaneously.
Qualifications
University Bachelor or Master Degree in any of the following: Computer Science, Telecommunication, Information Technology or Electrical Engineering with more than one year experience in related field is required.
Solid experience on C++ in Unix/Linux and Object Oriented design (OOD).
Solid experienced on socket programming and multi-thread programing.
Good knowledge on Solaris Platform and Operating system.
SS7 stack experience is an advantage.
Knowledge of Telecommunications is needed unless the programming skill is strong.
Good trouble shooting skill is advantage
DB knowledge is an advantage.
Soft skills
Easy to work with and strong team work spirit.
Good English communication (Reading is more important).
Good ability on fast learning of new technology and new work surrounding.
Good on logic and can express points clearly
Innovative and good solution thinking abilities is an advantage.
Open minded and willing to take challenges
Experience on agile development is an advantage.
职位十五：Mobile Positioning System (MPS) Integration & Verification（ I&V）移动定位系统测试工程师招聘人数：5，优先级：10）
一．工作背景描述：移动定位系统是一个集合GPS导航，GPS定位，个人安全及追踪于一体的全方位位置服务系统。由一个多功能AGPS手机和N个AGPS便携式定位终端组成，为家庭、公安、交通、物流等用户提供了一个方便、快捷、经济、灵活和贴身的位置服务系统。 移动定位技术是基于目前较为普及的GSM／GPRS无线网络覆盖对手机终端进行实时位置捕捉的新型技术，只要手机开机又能收得到网络信号，那么他所处的位置便随时能被掌握。无线移动网络是以小区(蜂窝)作为最小位置单位的，所以当手机处在不同的小区或在小区之间进行移动切换时，不同的小区号便确认了手机的实际位置。由于移动网络的小区号是全球惟一的，所以所对应的实际地理位置也是全球惟一的。移动定位技术在电子地图的显示下或在地理信息数据库的支持下，实时地显示、跟踪、处理单个、多个、群组的人、车或物。这种技术可以广泛地应用在大众无线数据信息娱乐服务或行业领域，应用于大众无线数据领域。
二．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程
三．任职要求：大学本科或以上：计算机，通讯或电子相关专业。1年以上的相关领域的工作经验。熟悉Unix/Linux系统平台的以及这个平台的管理策略，脚本和工具，熟悉软件测试的方法和工具，了解电信和TCP/IP协议，具备以下经验，则优先考虑：编写测试脚本，TTCN经验，SS7 stack经验，设计经验，数据库经验。
Product introduction
Mobile Positioning System (MPS) helps the service provider tailor content to meet users' needs. It interacts with its clients using defined and secure interfaces, and will provide business model flexibility, while protecting your network from abuse and overload.
MPS is made up of the Serving Positioning Center (SMPC), Gateway Positioning Center (GMPC) and the Zone Evaluation Location Server (ZELS).
In addition, MPS utilizes network features in core and radio network nodes, such as Home Location Register (HLR), Mobile Switching Center (MSC) and Serving GPRS Support Node (SGSN).
MPS can be used in GSM, WCDMA and LTE networks, providing a smooth migration path.
As a key component of our location-based service offering, MPS supports many new applications that can introduce the user’s location data to messaging services. These easy-to-use services provide more personalized user experiences including content tailored to the individual user’s whereabouts, enhancing satisfaction and usage.
MPS is easily deployed in networks – with or without LBS-standard interfaces. This provides rapid and scalable network coverage with lower investment costs and efficient networking.
MPS also provides cost-effective utilization of system resources and applications by serving several mobile networks simultaneously.
Qualifications
University Bachelor or Master Degree in any of the following: Computer Science, Telecommunication, Information Technology or Electrical Engineering with more than one year experience in related field is required.
Familiar with UNIX/Linux platform and its administration, UNIX/Linux script and tools.
Familiar with Software testing methods and tools.
Good experience on test case writing via script, TTCN experience is an advantage.
Good knowledge on telecom and TCP/IP protocol.
Design experience is an advantage.
SS7 stack experience is an advantage.
Good trouble shooting skill is advantage
DB knowledge is an advantage
Soft skills
Easy to work with and strong team work spirit.
Good English communication (Reading is more important).
Good ability on fast learning of new technology and new work surrounding.
Good on logic and can express points clearly
Innovative and good solution thinking abilities is an advantage.
Open minded and willing to take challenges
Experience on agile development is an advantage.
职位十六：Ericsson Multi Activation （EMA） Software Engineer爱立信多媒体产品开发工程师（招聘人数：1，优先级：9）
一．工作背景描述：爱立信多媒体产品EMA（ericsson multi activation），该产品是通信网络中一个重要产品，主要功能是做各项业务的开通，爱立信正在寻找立志于在大型软件开发中，真正想成为一个专业的开发技术人员，必须具备自我驱动力，开发的产品是爱立信提供的解决方案的很重要部分，产品供全球的客户使用，开发人员将根据客户的要求，基于时间，成本的考虑，进行软件的开发和维护工作。
二．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程
三．任职要求：大学本科或以上：计算机，通讯或电子相关专业。两年以上软件开发经验,具备C++或Java server端开发经验。熟悉Unix/Linux/ Solaris平台，有oracle数据库的操作经验。开发的领域最好是电信的网管平台，或类似的平台。
Description
Ericsson are looking for candidate who really want to become a professional developer, getting skilled in development of large scale software on open platforms.
Ericsson expect candidate to be self-motivated, with the drive to solve problems, expand candidater knowledge as Ericsson as work together in teams with other developers.
As a Software Developer candidate will join our group and develop products being part of Ericsson's provisioning solutions, used by customer's worldwide. Candidate will be developing and maintaining software based on customer's requirements as Ericsson as fulfilling our business requirements on cost, time and quality.
Qualifications
Candidate shall has good skills in software engineering principles like software design, programming and testing techniques.
Candidate will preferable have knowledge about agile principles, automated development environments and development using databases.
Knowledge of telecommunications systems and communication equipment and protocols is meriting.
A university degree or higher in computer science or equivalent.
Ericsson established skills in programming language such as Java or C++
Good knowledge in Unix (Solaris)
Experience in software development of server applications and database access.
Good written and spoken English.
Ability to learn new technology quickly and apply to tasks
Innovative and solution thinking abilities
Open minded and willing to take challenges
Teamwork spirit
A university degree or above in telecommunication, compute science or equivalent
Experiences in telecom system management or system integration areas
Good written and spoken English
职位十七：Ericsson Multi Activation (EMA) Integration and Verification I&V Engineer爱立信多媒体产品测试工程师（招聘人数：1，优先级：9）
一．工作背景描述：爱立信多媒体产品EMA（Ericsson Multi Activation），该产品是通信网络中一个重要产品，主要功能是做各项业务的开通，爱立信正在寻找立志于在大型软件开发中，真正想成为一个专业的技术人员，必须具备自我驱动力，爱立信多媒体产品是爱立信提供的解决方案的很重要部分，产品供全球的客户使用。
二．工作职责：测试工程师负责确保产品质量，确定测试方法和测试环境，在规定的成品，时间，产品框架内完成各项分配的测试任务。设计和开发测试方法和环境，完成测试报告，分析测试结果。
三．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程
四．任职要求：大学本科或以上：计算机，通讯或电子相关专业。1年以上软件开发经验,具备无线通讯系统背景或者基础，具备丰富的测试经验，英语读写和口语能力。
Description
We are looking for you who really want to become a professional developer, getting skilled in development of large scale software on open platforms.
We expect you to be self-motivated, with the drive to solve problems, expand your knowledge as well as work together in teams with other developers.
I&V engineer is responsible for ensuring product quality, securing test method and test environment to fulfill all the assigned test activities within approved cost, time and quality frame.
Responsibilities
Design and develop test method/environment
Execute test cases
Complete test report, analyze test results
Qualification
You are willing to ensure technical solutions are simple, reliable and cost effective, enjoy finding risks of product quality.
You are glad to work with customer and can provide technical solutions based on customer's requirement.
You are self-motivated, having good teamwork spirit, with the drive to solve problems and expand your knowledge.
Bachelor degree or above, major in electronic engineering, computer science, communications or similar
Good knowledge of wireless communication system
In depth understanding and experience of integration and verification
Fluent in both written and spoken English
职位十八：SGSN-MME Software Designer /GPRS服务支持节点-MME开发工程师（招聘人数：5，优先级：10）
一．工作背景描述：这个职位，属于爱立信Packet Core Network部门。SGSN是英文Serving GPRS SUPPORT NODE的缩写。SGSN作为GPRS/TD-SCDMA(WCDMA)核心网分组域设备重要组成部分，主要完成分组数据包的路由转发、移动性管理、会话管理、逻辑链路管理、鉴权和加密、话单产生和输出等功能。
SGSN即GPRS服务支持节点，它通过Gb接口提供与无线分组控制器PCU的连接，进行移动数据的管理，如用户身份识别，加密，压缩等功能；通过Gr接口与HLR相连，进行用户数据库的访问及接入控制；它还通过Gn接口与GGSN相连，提供IP数据包到无线单元之间的传输通路和协议变换等功能；SGSN还可以提供与MSC的Gs接口连接以及与SMSC之间的Gd接口连接，用以支持数据业务和电路业务的协同工作和短信收发等功能。
二．工作职责：支持配置管理，错误跟踪和变更请求控制;，参与在本地开发团队构建，包装和发布活动的支持。参与设计环境的整体改善工作，包括工具，环境等。
三．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程
四．任职要求：大学本科或以上：计算机，通讯或电子相关专业。必须具备的部分：丰富的脚本语言编程经验，例如Perl, Python;丰富的 Unix/Linux经验，关于WEB Portal架构和框架的丰富背景和经验，包括Drupal, PHP,熟悉MySQL数据库，熟悉CleareCase。具备如下经验则优先考虑：擅长C/C++开发，具备UCM 和GIT经验，熟悉build system, 例如Makefile;具备GSN 系统架构，GPRS, WCDMA和 EPC/MME 系统背景。
Are you ready for a new challenge in a company that encourages you to take your Software Engineer career to new horizons?
We are looking for software design engineers to work with Ericsson industry-leading SGSN-MME product and Packet Core Network as such.
Responsibility (listed below but not limited on)
Implement tools to support configuration management, defect tracking and change request control;
Involved in the support on the local development team with build, packaging and release activities.
Involved in the overall improvement activities(tools, environment, etc) of design environment
Technical Skills/Competencies
Mandatory Skills
Strong knowledge of scripting languages such as Perl, Python;
Strong working experience in a Unix/Linux environment;
Excellent knowledge and experience of WEB Portal development technologies and frameworks such as Drupal, PHP, be familiar with MySQL also.
Ability to learn new technology quickly and apply to work tasks
Innovative and solution thinking abilities
Optional Skills (Added Advantage)
Good at C/C++ programming
Familiar with CleareCase is required, knowledge of UCM and GIT is preferred;
Familiar with build system, Makefile;
Good knowledge in GSN system architecture, GPRS, WCDMA and EPC/MME systems could be a plus.
Soft Skills/Competencies
Open-minded, proactive and willing to accept challenges
Good English communication skills (both in written and verbal)
Self-motivated and capable of working independently on extended assignments
Teamwork spirit with demonstrated ability to work in a global team;
职位十九：GGSN Integration and Verification I&V Engineer/GPRS服务支持节点测试工程师（招聘人数：5，优先级：10）
一．工作背景描述：这个职位，属于爱立信Packet Core Network部门。SGSN是英文Serving GPRS SUPPORT NODE的缩写。SGSN作为GPRS/TD-SCDMA(WCDMA)核心网分组域设备重要组成部分，主要完成分组数据包的路由转发、移动性管理、会话管理、逻辑链路管理、鉴权和加密、话单产生和输出等功能。 SGSN即GPRS服务支持节点，它通过Gb接口提供与无线分组控制器PCU的连接，进行移动数据的管理，如用户身份识别，加密，压缩等功能；通过Gr接口与HLR相连，进行用户数据库的访问及接入控制；它还通过Gn接口与GGSN相连，提供IP数据包到无线单元之间的传输通路和协议变换等功能；SGSN还可以提供与MSC的Gs接口连接以及与SMSC之间的Gd接口连接，用以支持数据业务和电路业务的协同工作和短信收发等功能。
二．工作职责：•研究需求说明书，并预先估算开发阶段中不同活动的需求时间，编写测试规范，并跟踪到实际应用，与开发人员，系统管理者和其他参与工作人员的回顾总结测试规范，编写和执行测试脚本，并记录结果，记录故障报告，与相关的错误日志，查找错误并更正。其他测试方面涉及到的工作，如测试工具的设计，流程设计等。
三．工作地点：上海长宁区联强科技园，离地铁2号线淞虹路站5号出口5分钟路程
四．任职要求：大学本科或以上：计算机，通讯或电子相关专业。必须具备的部分：GSN方面（包括系统解决方案和网络设置），测试方法和理论，Linux and Unix (Solaris)平台测试经验，GPRS 和 WCDMA的良好基础，GSN系统架构，路由器和交换机的基础理论。具备以下方面则优先考虑：
无线通信能力，软件开发背景，脚本基础，网络测试，2-3年的GSN经验，1-2年的路由器经验，GPRS 的2线和1线支持经验。
The requirements on our products, from both existing and potential new customers, are currently very high and there is a huge demand of new features as well as higher capacity and performance. In addition to this our products will be key components in the next generation Packet Core Network (SAE/EPC).
In order to meet the demands above and to secure a continued success of the Ericsson Packet Core products, we are expanding our Integration & Verification for GGSN(Gateway GPRS Support Node).
Responsibilities
Study requirement specifications and make time estimates regarding different activities during the development phase,
Write test specifications and map them to related requirements,
Review test specifications together with designers, system managers and others involved,
Write test scripts and automate the execution of them,
Execute test cases and document the results,
Write trouble reports with relevant error logs attached,
Find faults and verify corresponding corrections of the software.
Ensuring the functionality and characteristics of a system on node level
Other activities related to testing, such as test tool design, process design etc.
There will be opportunities to work in development, maintenance, as well as being involved in the new technology trial at customer site.
Qualifications
You need to have an open mind, positive attitude and a constructive way of solving problems. You should also be:
Result oriented, flexible and innovative,
Interested in improving ways of working,
Fluent in English, both spoken and written, and able to express own thinking clearly
Learning new technology quickly and apply to work tasks.
Innovative and solution thinking abilities.
Willing to accept challenges
Be initiative and accountable
Good communication skills and good team player
Experience/knowledge within the following areas is required:
GSN competence (system solutions and network setup)
Test and verification methods
Good knowledge in Linux and Unix (Solaris).
Good knowledge in GPRS and WCDMA systems.
Good knowledge in GSN system architecture.
Good knowledge in routers and switches
Experience/knowledge within the following areas is considered as a plus:
Radio competence
Writing of reports
Software development
Knowledge in scripting
Network Integration and Verification
2~3 years working experiences in GSN area is preferred
1~2 years working experiences in router is preferred
GPRS 2nd line or 1st line support experiences is preferred
Qualification:
Preferably a Master of Science / Bachelor degree or equivalent in any of the following: Computer Science, Telecommunication, Information Technology, Electrical Engineerin
总计近20个职位，如果有兴趣，请发简历至1985@tsinghua.org.cn ;996747822@qq.com.
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