Presales Solution Architect, OSS

Responsibilities: - Act as the lead OSS solution architect across the full pre-sales lifecycle – from opportunity qualification and technical discovery through proof-of-concept, proposal, and contract award – partnering closely with Sales leadership to shape, qualify, and grow the regional pipeline. - Own and orchestrate end-to-end responses to RFx (RFI / RFP / RFQ), including solution design, compliance and traceability matrices, win themes, technical narratives, effort and Bill-of-Materials estimation, assumptions, and risk identification – driving on-time, high-quality, fully compliant submissions. - Design and articulate end-to-end OSS solution architectures spanning Service Assurance, Service Orchestration & Fulfilment, Inventory, and closed-loop automation, mapping the Rakuten Symphony portfolio to operator pain points and measurable business outcomes. - Position and demonstrate the Service Assurance portfolio – fault, performance, and service-quality management; AI/ML-driven ...