English summary for screening — check the original posting before applying.
primeNumber is hiring a Senior Software Engineer for their TROCCO product, a cloud-based ETL platform. You will lead core product development, from architectural design to execution, and contribute to evolving the SaaS platform for scalability and AI-era readiness.
Must-haves
- Experience building and operating web applications and databases at scale
- Architecture design and technology selection experience
- Project leadership and team collaboration
- Troubleshooting skills for DBs and middleware
- Business-level Japanese proficiency
Nice-to-haves
- Experience with React / TypeScript
- Kubernetes operations
- Building/operating commercial services on AWS
- API integrations with external systems
- Embulk operation or plugin development
- Mid-to-large scale product design and operations
- Security best practices for web applications
Tech stack
Ruby (Rails)TypeScript (React)Java (Embulk)AWS (EKS, ECS Fargate)KustomizeTerraformCloudWatchNew RelicRedashRollbarCircleCIGitHub ActionsClaudeGitHub CopilotGeminiGitHubSlackGoogle WorkspaceConfluenceMiroOkta1Password
Work style
Tokyo HQ or remote (domestic full-remote also possible). Flex time (Core: 11:00–16:00). Remote work available Wednesdays and Thursdays by default.
Other notes
Annual Salary: ¥8,000,000 - ¥15,000,000. Includes fixed overtime allowance (45 hours).