RCS L2 Operations Specialist

Why should you choose us?

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 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 1.9 billion members around the world. The Rakuten Group has over 30,000 employees, and operations in 30 countries and regions. For more information visit

Job Duties :

• Good Operations and Troubleshooting Experience with CFX , SBC, TAS, SIP, MRF & DNS Server Product.
  Experience on Mavenir RCS/IMS Core product is preferable.
• Technical support for outages/emergencies and business critical issues towards faster resolution/closure.
• Assess and mitigate risk of Core Network changes to ensure minimal service or revenue impacts.
• Analysis of clear code through Wireshark.
• Clear Code analysis and rectification for Volte Node include TAS/SBC/MRF/Net Number/CFX.
• Suitable for Working in a 24/7, shift environment and to ensure the respective node owners within the SLA.
• Alarm rectification in day-to-day MS Operation point of View handling for NTAS/SBC/MRF/CFX/Net Number/Cloud Platform.
• Good exposure in IMS architecture with all the nodes (P-CSCF, I-CSCF S-CSCF, TAS, HSS, MSS) and also having Knowledge on end-to-end call flow including IMS Registration, knowledge on volte call flows.
• Knowledge of all end-to-end call flow Initial registration/volte call/Conference call/Call forwarding/Call forking/call Hold/CSFB with mandatory header of SIP & IMS.
• Having knowledge of header used in SIP& IMS and their uses in real NW scenario.
• Troubleshooting on hardware and software related faults in case Volte Node is concerned. Quick learner and strong desire to master new Technologies in the area of Protocol.
• A tendency to work sincerely with team spirit and meeting the Deadlines.
• Partner with Various teams to improve services through collaboration and coordination.
• Handle End user inquiries through ticketing system and provide proper analysis and solution within SLA.
• Anchoring Product issues and collaborating with development team to resolve on time.
• Provide on call support and handling production incident as per incident management process.

Roles and responsibilities:

• Monitor system alarms, alerts, KPIs and utilization.
• Perform day to day operational activities such as Ticket, CR and incident management.
• Ensure System health and service reliability.
• Handling End user issues with Ticketing system and ensure to provide proper analysis and solution within SLA.
• Coordination with various stakeholders to resolve any end user issues.
• Work with infra and network teams for allocation of new and existing hardware.
• Mobile client and system log analysis to identify the root cause of any technical problem in the network.
• Escalate various issues to appropriate stakeholder with ticketing system.
• Provide On call support for various products to ensure service availability.
• Production incident handling with technical ownership.
• Maintain Technical Documentation as knowledge base.
• Identifies operational priorities by assessing operational objectives, determining project objectives, such as, efficiency, cost.

Preferred Qualification

• Total Experience: 8-14 years
• Experience in and/or knowledge of telecom (IMS, RCS , OTT application).
• Team spirit; strong communication skills to collaborate with various stakeholders.
• Good time-management skills, self-starter, able to work on their own.
• Intermediate Japanese Proficiency for both conversation and literacy (Good to have).

RAKUTEN SHUGI PRINCIPLES:

Our worldwide practices describe specific behaviours that make Rakuten unique and united across the world. We expect Rakuten employees to model these 5 Shugi Principles of Success.

• Always improve, always advance.
  Only be satisfied with complete success - Kaizen.
• Be passionately professional.
  Take an uncompromising approach to your work and be determined to be the best.
• Hypothesize - Practice - Validate - Shikumika.
  Use the Rakuten Cycle to success in unknown territory.
• Maximize Customer Satisfaction.
  The greatest satisfaction for workers in a service industry is to see their customers smile.
• Speed Speed Speed
  Always be conscious of time. Take charge, set clear goals, and engage your team.