Professional Summary
Lead Solution Architect with 12+ years of experience designing and modernizing large-scale enterprise systems in the insurance, fintech, and enterprise software domains in Japan. Proven track record leading architecture for cloud-native platforms supporting 50,000+ sales agents and high-volume insurance transactions.
Specialized in distributed system architecture, Kubernetes platforms, and enterprise modernization programs, with hands-on expertise across microservices, API platforms, and data systems. Experienced leading cross-functional engineering organizations of 40+ engineers and driving large-scale cloud transformations across legacy and modern systems.
Fluent in English and business-level Japanese (JLPT N2), with strong experience collaborating across engineering, business, and security stakeholders in global organizations.
Work Experience
Lead architecture and engineering direction for the modernization of MetLife Japan's insurance distribution platform processing 1M+ transactions per day, supporting internal sales channels and partner integration.
- Lead and mentor a cross-functional team of 40+ engineers across 8 agile teams responsible for design, development, and operations of the distribution F2F platform.
- Established architecture review processes and technical standards across 8 engineering teams to ensure consistency, security, and scalability.
- Architected modernization of the F2F insurance distribution platform used by 50,000+ agents, improving performance by ~70% and reducing production incidents by ~80%.
- Designed and optimized Kubernetes and Istio infrastructure, increasing availability to 99.99% and cutting deployment time by ~80% via automated scaling and traffic routing.
- Defined resilience strategies including Kubernetes health-check, automated failover, and monitoring frameworks to improve operational stability.
- Led migration of 15+ insurance product systems from legacy monolithic architecture to cloud-native microservices on Azure.
- Provided technical leadership across 8 cross-functional agile teams responsible for migrating the legacy distribution platform to cloud-native architecture.
- Designed the target architecture for the F2F insurance distribution platform on Azure Kubernetes Service supporting 50,000+ sales agents daily.
- Led transformation of legacy ESB / ETL / SOAP-based integrations into modern API-driven microservices architecture.
- Migrated CI/CD pipelines and observability from on-premise to Azure DevOps and cloud-based monitoring platforms.
- Implemented centralized observability using Splunk, AppDynamics, and Azure Application Insights to track system performance and business KPIs.
- Collaborated in designing and executing the migration of two major Distribution Bancassurance platforms from on-prem infrastructure to Cloud.
- Designed system integrations and architecture proposals for new platform capabilities and BAU activities.
- Design and Integration of SSO & R/P for Sales Platform to connect seamlessly with existing systems.
Developed microservices for Origami Pay, a mobile payment platform used by merchants and consumers across Japan.
- Designed and implemented Go-based microservices supporting P2P payments, wallet management, and KYC verification workflows.
- Built payment services handling merchant transactions and wallet balance management.
- Implemented fraud detection features and 3D Secure authentication flows for credit card payments.
Large-scale enterprise platform development for HUE ERP systems.
- Developed microservices supporting large-scale data ingestion and analytics workflows.
- Built REST APIs for processing and ingestion of large-size data to the system.
- Implemented batch processing, data transformation, encryption, compression, and streaming with Kafka, Hadoop, Hive, and PrestoDB.
- Developed high-performance data synchronization services across cloud and on-prem environments.
Developed backend systems for EPARK, a real-time reservation and queue management platform.
- Built REST APIs supporting reservation and waiting-time management services.
- Migrated existing applications from on-prem infrastructure to AWS.
- Designed centralized user account management services used across multiple EPARK products.
Developed a video encoding and transcoding platform (cutcompress) — data compression, transcoding pipelines, and file splitters for combining multiple inputs.