Lead technical strategy across Smaregi products, design shared foundations, establish quality standards and resolve engineering bottlenecks with teams.
Manage the Application Platform team supporting BUYMA development teams with backend modernization, microservices, SRE practices, cloud scalability, and AI-assisted development.
Leads engineering teams for BUYMA, a cross-border C2C marketplace, coordinating development, architecture, process improvement, people management, and cross-functional projects.
Lead project teams developing and operating GREE SNS/GREE Platform services, including server-side features, APIs and web applications, while improving stability in a hybrid remote-work setup.
Develop and operate the backend foundation for pixiv Premium, a large subscription service, covering analysis, design, implementation, performance, safety, platform renewal, and team leadership.
Manage engineering for GREE Avatar, developing server-side and front-end features, reviewing code, improving quality and scalability, and leading team and cost management.
Lead development direction and project management for restaurant POS and store DX solutions, translating customer and business needs into system requirements and coordinating delivery.
Develop and operate PayPay Securities backend services with Java, PHP, Spring Boot, Kotlin, and MySQL/AuroraDB, designing reliable high-throughput systems and resolving infrastructure and application issues.
Leads web and app development projects from client discussions and requirements definition through team setup, release, and ongoing operations, coordinating designers and engineers.
Leads full-stack development of Mico Message, designing customer applications, internal tools, scalable APIs and backend services while guiding architecture, reliability improvements and engineering practices.
Lead product development and software design for the AcroSign digital signage platform, managing requirements, design, testing, maintenance, quality, cost and delivery. The role is primarily office-based in Tokyo, with remote work available about once or twice monthly.
Resolve technical challenges across Smaregi products, shape technology direction, assess new approaches, and support product teams and launches.
Develops and improves web applications for BASE or YELL BANK, contributing to frontend and backend features, testing, refactoring, performance work, and development foundations.
Develop and improve pixiv’s web platform using TypeScript, React and Next.js. Own work from identifying user needs through planning, implementation, release verification and ongoing UX improvements.
Manage engineering teams and oversee project execution, ensuring quality and timely delivery of web applications.
Leads BUYMA web projects by shaping user stories, architecture, and release roadmaps, while resolving technical issues across scalable e-commerce systems.
Develop and improve backend web applications for pixiv’s large-scale creative platform, from identifying user needs through planning, implementation, release validation and ongoing improvement. Hybrid work is available.
Develop Smaregi’s own products, adding features and integrations, building APIs and improving architecture and automated delivery as usage grows.
Senior backend engineer developing and operating BUYMA and Enigmo's web services. Designs application architecture, builds features and APIs, and resolves performance and reliability issues.
Lead an engineering team of about six for pixiv Encyclopedia, driving its renewal, backend API or Next.js work, new features, technology selection, and progress management.
Design and operate game APIs and cloud infrastructure, monitor live services, deliver updates and solve load and outage issues across smartphone and online titles.
Develop skyticket’s hotel-booking backend through microservices, data platforms, wholesaler APIs and payment integrations, while improving performance and AI/LLM features.
Design, build, and operate Pixiv’s on-premises and cloud infrastructure, including Kubernetes, OpenStack, databases, developer platforms, data centers, and networks.