Leads customer implementations of LLM and generative-AI systems from architecture through production, building full-stack solutions and improving model quality.
About this role
This Software Engineer Lead role sits within SB OAI Japan’s AI and data engineering organization, working with major Japanese enterprises to put advanced AI models into production. The position partners with FDEs, customer engineers and business teams, while coordinating with Product, Research and Security teams at OpenAI and SB OAI Japan. Its focus is moving beyond prototypes to reliable adoption in customer operations.
The role leads requirements definition, technical scoping, architecture and delivery across multiple projects. Responsibilities include establishing architecture standards and shared platforms, designing connectivity to customer systems and data, moving PoCs into production, and managing performance, availability, security, governance and operational quality. It also includes setting development and review processes, mentoring engineers, and coordinating priorities, dependencies and delivery risks.
Applicants must have led production design, implementation and operational improvement using web application frameworks or frontend platforms; designed scaling and staged releases on container orchestration platforms; built and operated data pipelines; implemented embedding pipelines for RAG architectures using search or vector search; operated cloud network controls and load balancing; and improved performance through SQL optimization.
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