Network Infrastructure Specialist

Rakuten Symphony is reimagining telecom, changing supply chain norms and disrupting outmoded thinking that threatens the industry’s pursuit of rapid innovation and growth. Based on proven modern infrastructure practices, its open interface platforms make it possible to launch and operate advanced mobile services in a fraction of the time and cost of conventional approaches, with no compromise to network quality or security. Rakuten Symphony has operations in Japan, the United States, Singapore, India, South Korea, Europe, and the Middle East Africa region. For more information, visit: Building on the technology Rakuten used to launch Japan’s newest mobile network, we are taking our mobile offering global. To support our ambitions to provide an innovative cloud-native telco platform for our customers, Rakuten Symphony is looking to recruit and develop top talent from around the globe. We are looking for individuals to join our team across all functional areas of our business – from sales to engineering, support functions to product development. Let’s build the future of mobile telecommunications together About Rakuten Rakuten Group, Inc. (TSE: 4755) is a global leader in internet services that empower individuals, communities, businesses and society. Founded in Tokyo in 1997 as an online marketplace, Rakuten has expanded to offer services in e-commerce, fintech, digital content and communications to approximately 1.5 billion members around the world. The Rakuten Group has over 27,000 employees, and operations in 30 countries and regions. For more information visit Job Summary: We are seeking a skilled IP Networking QA Engineer to join our Quality Assurance team within the IP Networking division of a leading Mobile Network Operator (MNO). The successful candidate will be responsible for ACI and routing operations, feature validation, network optimization, and automation. Responsibilities: ACI and IP Routing Operations: Manage and troubleshoot Cisco ACI and IP routing infrastructure. Ensure network stability and performance through proactive monitoring and maintenance. Feature Validation: Design and execute test plans for new network features and enhancements. Validate network configurations and changes to ensure compliance with design specifications. Network Optimization: Analyse network performance and implement optimization strategies. Identify and resolve network bottlenecks and inefficiencies. Automation: Develop and maintain automation scripts using Python to streamline network operations. Implement automated testing frameworks to improve testing efficiency and coverage. Required Skills: Technical Expertise: Strong knowledge of IP networking concepts, including routing, switching, VLANs and VPNs. Proficiency in network protocols such as BGP, IS-IS, OSPF, MPLS, and TCP/IP. Encapsulation protocol like VXLAN and Control plane protocol like EVPN to build highly scalable IP fabric. Hands-on experience with network testing tools (e.G., Wireshark, Ixia, Spirent) and network management systems. Proficiency in scripting languages (e.G., Python, Bash) for test automation. Familiarity with network security principles and practices. Process Knowledge: Understanding of FCAP (Fault, Configuration, Accounting, Performance Management) and ITIL processes. Experience: 10-12 years of experience in IP networking and Quality Assurance Certifications: Preferred CCIE, or relevant certifications such as CCNA, CCNP