The Senior Cyber Threat Hunter will proactively identify and mitigate advanced threats to strengthen Rakuten Mobile's cyber defense posture. The role develops and executes hypothesis-driven hunts, analyzes security data, and translates findings into actionable detection improvements while supporting incident investigation and containment.
Develop and optimize backend microservices and APIs supporting global, multi-channel CPaaS communication services. The role covers distributed systems, databases, Kubernetes operations, CI/CD, observability, and collaboration with product and engineering teams.
Deployment Strategists advise enterprise customers on AI strategy, design agentic solutions, and lead customer engagements from discovery through deployment and adoption. They coordinate delivery teams and manage engagement outcomes, working alongside Forward Deployed Engineers to help customers realise lasting value from deployed solutions.
Senior AI Engineers lead the development of AI-powered features, owning LLM integrations, agentic workflows, prompt design, and evaluation from design through production. They define AI integration patterns for their pod, contribute production-grade code, and collaborate with Software Engineers to build customer-facing AI capabilities.
The Senior AI Engineer will embed in a business unit engineering team to design, build, evaluate, and ship agents using in-house or open-source LLMs. The role includes taking agents from prototype to production, migrating from third-party APIs, and creating reusable implementation guidance for other teams. The position focuses on product integration rather than training foundation models or building the LLM platform.
The Software Engineer will join the Ad Product Section (APS) team and contribute to the next generation of Rakuten’s advertising platform. The role includes owning the full SDLC, designing scalable systems, conducting code reviews, and integrating AI-powered coding tools and workflows. It also involves collaboration across Product, Design, and Engineering, as well as mentoring junior engineers and interns.
Design, build, and operationalize AI-driven solutions across Shiseido's enterprise landscape. The role identifies AI use cases, develops AI agents and integrations, and deploys solutions into production across the SAP S/4HANA ecosystem and surrounding third-party platforms.
Drive customer outcomes by shaping opportunities and translating business needs into clear, actionable technical approaches. Build and deliver production-grade solutions in customer environments with end-to-end ownership, and tailor solutions to industry and customer context. Engage senior stakeholders and transition scoped work to FDE crews with strong technical direction.
The Senior Software Engineer will join the Ad Product Section team and help define the next generation of its advertising platform. The role owns the end-to-end product development lifecycle and includes technical leadership, architectural design, system maintenance, cross-functional collaboration, and mentoring engineers.
The Senior Software Engineer will help define the next generation of the advertising platform and own the end-to-end product development lifecycle. The role includes technical architecture, implementation, deployment, monitoring, maintenance, code reviews, and integrating AI-assisted development workflows. It also includes identifying technical debt, collaborating with Product, Design, and Engineering, and mentoring junior engineers and interns.
The GPU Training & Inference Optimization Engineer focuses on maximizing the performance, efficiency, and scalability of LLM training and inference workloads on Rakuten’s GPU clusters. The role optimizes distributed training frameworks and inference engines, improves GPU utilization, reduces training time and inference latency, and collaborates with infrastructure teams on large-scale GPU workloads.