Rakuten Mobile, Inc.
Rakuten Mobile, Inc. is the mobile communications arm of Rakuten Group, operating as a mobile network operator in Japan. It sells consumer 4G/5G mobile plans and offers enterprise communications via a CPaaS platform spanning SMS, email, voice, messaging apps, and authentication APIs. Founded in 2019 and headquartered in Setagaya-ku, Tokyo, it runs an Open RAN, cloud-native network and launched commercial mobile service in 2020.
Open Positions at Rakuten Mobile, Inc.
2 open positions
Lead the design and transformation of Rakuten’s detection engineering capability, building AI-driven, Detection-as-Code pipelines to defend critical infrastructure from sophisticated and autonomous attacks. This role combines security research, runtime protection, threat hunting, and offensive validation across cloud-native and telecommunications environments.
Lead the architecture and development of Rakuten Mobile’s proprietary AI platforms, including an LLM fine-tuning and high-precision RAG system for automating network design reviews. This high-impact role also establishes AI governance, evaluates models and vendors, and defines architectural guardrails for an autonomous, cloud-native mobile network.