English summary for screening — check the original posting before applying.
Lead the technical development of package products for the digital solutions business. You will be responsible for the architecture design of the technical foundation with a view to business growth, not just implementation leadership.
Must-haves
- 3+ years of design and development experience in Web/SaaS products (C#)
- Proven track record of leading architecture design
- Experience in technology selection and setting design policies
- Experience in quality assurance through code and design reviews
- Experience as a technical lead for an engineering team
- Experience driving development and making decisions in uncertain environments
Nice-to-haves
- Experience developing multi-tenant SaaS/BtoB package products
- Cloud design and DevOps/CI/CD setup experience
- Development and people management experience in a startup environment
Tech stack
C#ASP.NET CoreEntity Framework CoreRESTxUnitTypeScriptReactCarbon ReactViteVitestReact Testing LibraryMicrosoft AzureAzure SQL DatabaseGitHub EnterpriseAzure DevOpsVisual Studio 2026Microsoft Teams
Work style
Flex-time (no core hours), remote work system available. Location: Tokyo.
Other notes
Annual salary: 8,000,000 JPY - 12,000,000 JPY. Includes 45 hours of fixed overtime per month.