Rakuten Symphony

Rakuten Symphony is seeking a QA Automation Engineer to build and maintain frontend and backend test automation for its CPaaS platform. The role combines manual testing, pipeline optimization, debugging, and AI-assisted testing innovation in a global Tokyo-based team.

Backend Engineer responsible for building scalable, high-throughput services that power a global CPaaS platform across messaging, voice, identity, and authentication channels. The role combines distributed systems, cloud-native operations, database performance, API development, and AI-assisted engineering.

Lead secure architecture and hands-on implementation for Rakuten Symphony’s cloud-native RAN, OSS, and telecom software deployments. This highly technical, customer-facing role spans pre-sales advisory, IAM, network and Kubernetes security, and on-site hardening.

Lead the development of AI agents and full-stack applications that power Rakuten Link’s communication ecosystem. This role combines LLM integration, workflow automation, scalable backend services, and modern user interfaces with technical mentorship and cross-functional collaboration.

Join Rakuten Symphony’s Cloud Customer Success team as an SRE supporting the Rakuten Cloud Platform across APAC. You will design scalable cloud architectures, improve platform reliability, and help customers successfully operate cloud solutions.

Senior QA Engineer responsible for validating Rakuten Cloud products for enterprise customers, with a focus on Japanese-language quality and backend/data testing. The role combines automated testing, defect troubleshooting, and advanced integration, performance, scalability, and stress-test design.

Join Rakuten Symphony as an SRE focused on cloud automation, Kubernetes, and operational excellence for Rakuten Cloud Platform customers. You will combine hands-on infrastructure expertise with customer collaboration to support cloud adoption and RMI automation.

Serve as a senior customer-facing cloud architect helping APAC customers adopt, optimize, and operate Rakuten Cloud Platform automation and related cloud services. The role combines cloud technical expertise, automation, troubleshooting, and customer advocacy.