English summary for screening — check the original posting before applying.
Backend Engineer role focused on the design, development, and operation of "Bluefield Cloud" and related new services. Responsibilities include new feature development, performance tuning, and cloud infrastructure management.
Must-haves
- Experience developing web applications using C# / ASP.NET Core (including REST API design/implementation, RDB usage)
- Experience with database design/implementation using Entity Framework Core (understanding of object-oriented design/design patterns)
- Experience developing in cloud environments like Azure
- Experience implementing automated tests
- Experience with Agile development
- Japanese language communication skills for team development
Nice-to-haves
- Azure infrastructure construction / Azure DevOps utilization experience
- Understanding of design philosophies like DDD, Clean Architecture, CQRS
- Frontend (React etc.) experience
- Ability to catch up on technical information in English
Tech stack
C#ASP.NET CoreEntity Framework CoreRESTFastEndpointsMediatRxUnitTypeScriptReactCarbon ReactViteVitestReact Testing LibraryMicrosoft AzureAzure SQL DatabaseGitHub EnterpriseAzure DevOpsVisual Studio 2026Microsoft Teams
Work style
Flex-time (no core hours), remote work available. Location: Tokyo.
Other notes
Annual salary range: 6,000,000 JPY - 10,000,000 JPY. Includes 45 hours of fixed overtime per month.