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Senior Application Engineer (Voice BSS) - Enterprise DX Product Management Section, BSS Development Department (BSDD)

Tokyo, Japan💼 Full-time🗓 2026-03-13 → 2026-07-31

Core

Developing and operating Business Support Systems (BSS) for voice services, including application receiving, mobile service provisioning, billing, and invoice management for Rakuten Mobile.

Role type

Senior Application Engineer (Voice BSS)

Builds

Unified BSS platform for telecommunication business lines

Domain

Telecommunications / Business Support Systems

Deliverable

production ML models | product features | dashboards & analysis | client delivery | infrastructure | physical/clinical work

Required skills

Java, C, C++, Python, SQL, REST, Git, incident management, stakeholder coordination, system operations, vendor management

Preferred skills

Telecommunications industry experience

Technologies

Oracle, MySQL, Windows, Linux, HP-UNIX, SSL, FTP, SFTP, HTTP, SOAP, SVN

Responsibilities

System development and operations for voice services, BSS planning and design, operational design and project management, system incident management, vendor control, stakeholder reporting

Seniority

Senior, hands-on IC

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