About this role
Software Engineer, Backend - Payment Core - Merpay at Mercari, inc.. Location: Minato City, Tokyo, Japan. Role: designing architecture, developing platform, ensuring reliability Requirements: 5+ years web application development; DB schema design and efficient queries (Spanner/RDB/NoSQL); distributed systems and security knowledge; software architecture and middleware selection; ownership mindset; Japanese CEFR B2 required, English B2 preferred. Category: Software Development Seniority: Senior Level Tools: Go, Google Cloud, Kubernetes Engine, Cloud Spanner, Cloud Storage, Pub/Sub, Terraform, BigQuery, Looker, Data Studio, Datadog, PagerDuty, Sentry, Spinnaker, Argo CD, Confluence, Notion, Claude Code, Codex, Gemini, GitHub, Slack, Protocol Buffers, gRPC, HackerRank Commitment: Full Time Workplace: Hybrid Languages: Japanese, English