Senior Data Architect | AI & Cloud Data Platforms for Large-Scale Financial Transformation

Job Description We are currently partnering with a fast-growing AI & Data consulting company in Japan that is actively expanding its AI & Data division and is now looking for a Senior Data Architect. The company works directly with some of Japan’s leading financial institutions and enterprise groups, helping them modernize large-scale data environments, implement AI-driven solutions, and build organization-wide data strategies. Their projects cover everything from enterprise data platforms and AI governance to GenAI modernization initiatives and large-scale cloud transformation programs. This position offers the opportunity to work on enterprise-grade data architecture projects involving large-scale financial data environments, AI enablement platforms, cloud-native data infrastructure, and next-generation analytics ecosystems. The role is highly strategic and hands-on, involving architecture design, technical leadership, stakeholder management, and collaboration with AI/Data Science teams across multiple projects. Key Responsibilities: • Lead architecture design and technical strategy for enterprise data and AI platforms • Design modern DWH / Data Lake architectures on AWS, Azure, or GCP • Drive data governance, ETL design, and enterprise-scale data modeling initiatives • Work closely with clients to analyze current environments and define future-state architecture • Support implementation teams with technical guidance around Snowflake, Databricks, cloud platforms, and modern data ecosystems • Collaborate with AI and Data Science teams on AI-ready infrastructure and governance design • Promote architecture standardization and knowledge sharing across projects • Support AI modernization initiatives involving GenAI and large-scale enterprise transformation Examples of projects include: • Enterprise-wide data platform strategy for major financial groups • AI enablement and data governance initiatives • Cloud-based analytics platform modernization • AI-driven operational transformation projects • Enterprise AI/LLM integration and modernization programs Environment & Culture: • Flat and highly collaborative engineering culture • Strong focus on modern AI technologies and cloud-native architecture • Direct communication with leadership and high level of ownership • Active investment in learning, certifications, conferences, and technical growth • AI-first culture with active adoption of generative AI tools internally • Flexible hybrid work environment and strong long-term stability Requirements Requirements: • Experience designing enterprise data platforms such as DWH, Data Lake, or governance environments • Experience leading technical projects and managing teams • Strong knowledge of cloud platforms (AWS, Azure, or GCP) • Experience with modern data technologies such as Snowflake, Databricks, or similar • Business-level Japanese • Eligibility to work in Japan Preferred: • AI governance / AI security knowledge • Experience with machine learning or AI-related systems • Experience building LLM/RAG-based applications • English communication skills • Consulting or enterprise client-facing experience Benefits Compensation & Benefits: • Annual salary: ¥10M – ¥22M JPY • Location: Nihonbashi, Chuo-ku, Tokyo • Hybrid work style available (office + remote work combination) • Full flex-time system (no core time) • Standard working hours: 8 hours/day Holidays & Time Off: • Full two-day weekend system • 123 annual holidays annually • Paid leave granted after probation period • Refresh leave / New Year holidays / parental leave / condolence leave Benefits: • Defined contribution pension plan • Learning & self-development support • Internal/external networking support budget • Sports & wellness allowance • Full annual health check support • Full influenza vaccination support including dependents • Full transportation reimbursement • Relocation support (eligible employees) • Childcare/babysitter support • Business trip & training allowances • Marriage / childbirth / condolence support system Insurance: • Health insurance • Employee pension • Employment insurance • Workers’ compensation insurance Additional Information: • Non-smoking office environment • Flexible internal role mobility and career growth opportunities This is an excellent opportunity for someone who wants to work at the intersection of enterprise AI, large-scale data architecture, and real business transformation within Japan’s financial industry