Principal Technical Architect (Domain Name Migration)

A leading mobility technology company seeking a Principal Technical Architect to lead the end-to-end architecture and strategy for a complex, organization-wide domain migration. The role will act as the senior technical authority, define the target architecture and migration approach, and ensure a controlled migration with minimal business disruption and rollback capability.

Responsibilities:
- Architecture & Strategy: Own the migration architecture, target state and technical approach, covering Entra ID, Keycloak, SAML, OIDC, OAuth, SCIM and related identity technologies
- Technical Leadership: Act as the senior technical authority, drive key decisions, resolve complex issues and ensure engineering aligns with the agreed architecture
- Dependencies & Readiness: Assess application/identity dependencies, migration readiness and technical risks, coordinating across engineering, application owners, vendors and IDP teams
- Testing & Cutover: Validate the migration approach, define testing and acceptance criteria, and establish cutover, rollback and go/no-go procedures
- Migration & Stabilisation: Provide technical leadership through migration and post-cutover, resolving issues and transitioning the final solution to IT operations

Required Skills:
- Principal-level Enterprise / Solution Architecture experience
- Strong IAM / IDP expertise, including Entra ID, Keycloak, SAML, OIDC, OAuth, SCIM and JIT
- Proven experience delivering large-scale domain, identity, authentication or application migrations
- Strong knowledge of application dependencies, authentication/provisioning flows, cutover and rollback strategies
- Strong technical decision-making, problem-solving and stakeholder communication skills

Why you should apply:
- Contribute to a company delivering Silicon Valley Innovation with Made in Japan Quality, including smart cities, autonomous driving, AI, and robotics
- Make significant, high-visibility, contribution with organization wide scope  


Company details:
A global mobility technology organization backed by one of Japan’s most recognized automotive groups, developing next-generation technologies across autonomous driving, AI, robotics, and smart city infrastructure. The organization brings together international technology talent to build innovative solutions with a strong focus on quality, safety, and real-world implementation.

Work hours: 9:00–18:00
Work location:Tokyo
Work style: 4 days in office / 1 day Work From Home (First month: 5 days in office)
Holidays: Weekends, public holidays, year-end and New Year holidays, paid leave, and other special leave
Benefits: Full social insurance, DC pension plan, transportation expenses, Skillhouse University, Test Payback System, and other benefits