Software engineer building scalable systems at Japan’s largest C2C marketplace. My work spans distributed systems, backend infrastructure, and high-reliability services; driven by a long-term ambition to build impactful deep-tech companies in AI, space, and neurotech. I’ve delivered across multiple domains: backend engineering, blockchain, cloud platforms, academic research, and performance-critical systems. My experience includes designing and operating microservices at scale using Go, gRPC, Kubernetes, Terraform, and observability stacks. I also contributed to Hyperledger Fabric as an LFX mentee, integrating the BDLS Byzantine consensus protocol into its ordering service. I work fast, learn aggressively, and default to ownership. If your work touches infra, systems, deep tech, or early-stage innovation, I’d be interested in connecting. I sometimes write...