Principal Engineer, Developer Experience (DevEx)

Required Qualifications

• Extensive experience as a senior or principal-level engineer leading cross-team or organization-wide initiatives related to developer productivity, platform engineering, or developer experience.
• Strong hands-on experience with modern CI/CD pipelines, build and test automation, and developer tooling for cloud-native applications.
• Practical experience designing and operating internal developer platforms or portals (e.g., Backstage or similar), including defining golden paths, templates, and shared services.
• Solid understanding of software engineering metrics and productivity frameworks (e.g., DORA, SPACE), including the ability to design meaningful metrics and avoid misuse.
• Experience working with data pipelines and analytics tools (e.g., Apache DevLake, BigQuery, Looker Studio or equivalents) to collect, transform, and visualize engineering data.
• Proven track record of partnering with security, reliability, and operations teams to embed good practices into development workflows.
• Demonstrated ability to lead technical design, run experiments, and deliver incremental improvements in complex, multi-team environments.
• Excellent communication skills in both Japanese and English, with the ability to tailor messages to engineers, managers, and executives.
• Japanese Language Requirements: Business level (fluent, capable of handling communication with clients in Japanese). You should be able to participate in technical and non-technical discussions, lead meetings, and produce written documentation in Japanese.
• English Language Requirements: Business level (fluent, capable of handling communication with clients in English). You should be able to collaborate effectively with global members, lead discussions, and produce technical documents in English.