Senior Architect, Demo Engineering

The Rakuten Group has over 30,000 employees, and operations in 30 countries and regions. The mission of this role is to make advanced telecom automation and intelligent operations feel real, practical and achievable for customers. Design and maintain high-quality demo environments for OSS automation, assurance, observability, RAN intelligence, RIC/SMO-related scenarios and AI-assisted operations.Build realistic use cases using product capabilities, APIs, dashboards, workflows, network data, synthetic data and customer-provided inputs where available.Support strategic presales engagements by translating customer challenges into credible demo stories and proof-of-value flows.Work with operators to understand gaps in their current operational model, data landscape, OSS tooling and automation maturity.Create reusable demo assets, data sets, scripts, dashboards, architecture diagrams, solution narratives and customer-specific demo journeys.Partner with product and engineering teams to turn market feedback into stronger use cases, clearer demos and sharper roadmap input. 8-15 years of experience in telecom solution engineering, demo engineering, presales, solution architecture, OSS/RAN engineering, cloud platforms, automation or network operations.Technically deep enough to earn credibility with OSS, RAN, cloud and data teams.Strong understanding of telecom operator environments, especially network operations, service assurance, observability, incident management, change management, RAN operations and automation workflows.Hands-on experience building or configuring technical demos, proof-of-concepts, lab environments, customer workshops or solution prototypes.Ability to work across technical and business audiences, from network engineers and cloud architects to operations leaders and executive stakeholders. Always be conscious of time.