Senior Backend Engineer / New In-House SaaS Development | Aim for Full Stack, Tech Lead, or PM! Lead Backend Engineers for 'Kurashi SaaS' Development - New Products Supporting a Secure and Convenient Life (B2B/B2C) | Engineer-Specific Evaluation System AvailableEnglish summary from Japanese

SocioFuture株式会社

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Salary

6,290,000 JPY - 8,730,000 JPY

Role summaryEnglish summary from Japanese

English summary for screening — check the original posting before applying.

Seeking a Senior Backend Engineer to lead new in-house SaaS development ('Kurashi SaaS'). You will work closely with the CTO, focusing on backend development while having opportunities to expand into full-stack, infrastructure, and potentially Tech Lead or PM roles.

Must-haves

5+ years of backend development experience using Java
Experience in new scratch development
Ability to guide team members

Nice-to-haves

Experience in in-house product development
Experience with Agile/Scrum development
Experience with code reviews
Experience with client negotiation/upstream design

Tech stack

JavaQuarkusTypeScriptReactMySQLPostgreSQLOracleAWS

About the Company

SocioFuture株式会社

Headquarters

東京都港区浜松町1-30-5

Posted6/18/2026

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