Lead enterprise-wide digital transformation strategy and execution across Mizuho Securities and the financial group. Manage AI, data, and business reform projects, coordinate stakeholders, report to executives, and mentor DX personnel.
About this role
This cloud engineering role supports AI and DX initiatives across Mizuho Financial Group. The engineer works with AI technical leads and development teams to design, build, operate and improve cloud platforms that support AI products.
Responsibilities include creating cloud-use guidelines and AI-platform architectures; defining and reviewing non-functional requirements in light of applicable regulations; building multi-account AWS environments; and designing governance and security controls using AWS Control Tower and Security Hub. The role also includes building and monitoring development and execution environments for Scrum development, improving operations through SRE activities and automation, defining infrastructure requirements and plans based on application development plans, and reviewing implementations delivered by development partners.
Example projects include operating and enhancing the next-generation AI platform Wiz Base, planning and building an AI data platform using Databricks, developing an AI Gateway to optimize and govern AI model usage, promoting system connections and data integration between departments, automating monitoring and operations, and supporting the acceptance and architecture design of AI products. The products include applications for meeting-record drafting, slide generation, sales-knowledge formalization and internal-procedure search.
The technology stack includes TypeScript and Python; Next.js, React, Vue.js, FastAPI and Streamlit; Assistants API, Agents SDK, Strands Agents SDK, LangChain, LangGraph and Vertex AI; AWS, S3, ECS, ElastiCache, Terraform, CDK, Bedrock and Bedrock Agentcore; Jest, Pytest and Playwright; and GitHub, Teams, Slack, Jira and Confluence. AI tools also include ClaudeCode, AWS Kiro, OpenAI Codex, Amazon Q Developer, Devin, Dify and v0.
Required qualifications are at least three years of experience designing and building system platforms using AWS or other cloud services, experience designing and building with PaaS or serverless architectures, and experience designing cloud architecture, including overall system configuration, technical approach and non-functional requirements. Experience with cloud platforms for generative-AI products, API platforms or AI Gateways, Databricks data platforms, architecture guidelines, and SRE or infrastructure leadership is welcomed.
The position is a permanent employee role in Tokyo. Work is hybrid, combining office and remote work.
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