欧州最大のコンサルティングファームでのRibbon Engineerの求人

We are seeking a highly skilled and experienced Ribbon L2 Support Engineer to join our team. The ideal candidate will possess excellent technical knowledge and proficiency in PSTN, VOLTE, and SIP protocols. Fluency in both English and Japanese is essential for effective communication with our partners and internal teams.

●Responsibilities
・Responsible for the day-to-day operation and support all Ribbon nodes in the network
・Provide Level 2 support for Ribbon products, troubleshooting and resolving technical issues related to PSTN, VOLTE, SIP, and other associated protocols
・Manage and resolve complex customer issues escalated from L1 support team
・Monitor and troubleshoot voice related incidents to identify the root cause and ensure swift and effective resolution
・Perform regular technical analysis to ensure the optimization and quality PSTN services
・Collaborate with internal teams, partners, and vendors to resolve escalated technical issues and implement corrective actions
・Conduct testing and verification of every migrated FNO configurations to ensure they meet regulatory and service requirements
・Generate reports, analyse roaming service KPIs, and contribute to the improvement of processes and procedures
・Document and maintain detailed records of all support activities, including resolutions, troubleshooting steps, and partner interactions
・Change implementation
・Support the PSTN migration from TDM to IP
・Handle communications with FNO Partner
・Build knowledge and manage daily operation activities to high efficiency
・Collaborate with our Partners and internal stakeholders to identify issue and fixes incidents within the agreed service SLA
・Be part of an on-call shift rotation pool
・Availability to work occasionally during nights and weekends to provide support for urgent issues or scheduled maintenance
・Working from office

●Mandatory
・3+ years of experience in Ribbon engineering
・Bachelor’s degree in Telecommunications, Engineering, or a related field
・3+ years of experience in mobile core network operations
・Deep understanding of mobile network related protocols and technologies such as SS7, Diameter, GTP, MAP, SIP, RTP and IP-based protocols
・Strong technical knowledge on fixed network, VoIP, LTE, VoLTE, including core network elements and architecture
・Multiyear experience on Ribbon products (DSI, GSX, PSX, SBC, SGX)
・Experience with monitoring tools, troubleshooting techniques, and performance analysis
・Excellent analytical and problem-solving skills with a focus on delivering high-quality results
・Strong communication and interpersonal skills to collaborate effectively with internal and external stakeholders
・Ability to work under pressure and prioritize tasks in a fast-paced and dynamic environment
・Familiarity with trace reading and troubleshooting
・Able to communicate clearly and concisely in English and Japanese (verbal and written)
・Method of Procedure preparation and validation experience
・Configuration implementation experience.

●Preferable
・RCS on Mavenir products experience is highly appreciated
・Proficient in using industry-standard tools for analysing KPIs and metrics, trace reading and troubleshooting
・Certifications or Trainings CCNA, CKA, OpenStack COA is advantageous