岗位职责： 1. 了解运营商目标设定，可以很好的把运营商需求转化成公司内部开发需求，和研发系统配合，打造有竞争力的运营商产品; 2. 熟悉美国运营商产品流程，主导运营商投标、产品入库和需求对接； 3. 负责运营商产品导入期的产品支持工作，负责远程或现场支持国家入网，运营商准入测试、认证要求，如Verizon/TMO等。 4. 保障美国市场的产品质量及外场测试，保障移动终端的网络功能和性能，以及管理第三方服务测试公司等；   任职要求： 1.本科学历及以上，通信、信号处理、电子、计算机等相关专业，3年以上相关工作经验；； 2.熟悉CDMA/GSM/WCDMA/LTE/5G等相关通信原理，熟悉部分3GPP协议和规范； 3.英文听说读写能力优秀，可作为工作语言； 4.理解美国市场运营规律，有运营商投标、产品支持等相关工作经验； 5.良好的语言表达能力和沟通能力，逻辑思路清晰。 Responsibilities： Understanding the goal setting of operators,  transform the requirements  of operators into the internal development needs of the company, and cooperate with the R&D to create competitive products for operators. Be familiar with the product process of U.S. operators, and lead the bidding, product warehousing and demand docking of operators. Be responsible for the product support of operators in the early phase, such as Verizon / TMO, etc. Working remotely or Ｏn-site support for national certification of network, operator admission test and collect certification requirements. Guarantee the product quality and field test in the U.S. market, guarantee the network function and performance of mobile hotspot and CPE terminal, and manage the third-party service testing company, etc. Requirements： Bachelor degree or above, major in communication, signal processing, electronics, computer, etc., with at least 3 years of relevant working experience. Be familiar with CDMA / GSM / WCDMA / LTE / 5G and other related communication principles, and be familiar with some 3GPP protocols and specifications. Excellent in English listening, speaking, reading and writing, which can be used as working language. Understand the operation rules of the U.S. market, and have relevant working experience in operator bidding, product support, etc. Good language skills and communication skills, clear logical thinking.