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Want to build systems that handle real traffic, real complexity, and real product impact?
We’re hiring a Backend Engineer to join the core engineering team behind one of Japan’s most widely used digital platforms. This isn’t maintenance work — you’ll design and ship backend systems that power millions of daily user interactions.
You’ll work in an environment where engineers own decisions, challenge assumptions, and continuously improve architecture at scale.
What You’ll Work On
Design and develop backend services in Java or Go
Take features from idea to production — architecture, implementation, testing, deployment
Improve latency, resilience, and observability across critical systems
Reduce technical debt while scaling traffic and feature complexity
Contribute to architecture discussions and long-term platform evolution
What You Bring
3–5+ years building backend systems in production environments
Strong proficiency in Java or Go
Experience with relational + NoSQL databases
Solid understanding of APIs, distributed systems, and performance tradeoffs
Comfortable working in agile, product-driven teams
Business level English and Japanese (N2 or more)
Nice to Have
Microservices architecture experience
Spring / JPA, gRPC, or GraphQL
DevOps or cloud infrastructure exposure
Domain-driven design mindset
Why This Role Stands Out
Fully remote within Japan — strong async engineering culture
Systems that operate at real scale (not theoretical scale)
A stable, profitable product with the speed of a startup team
Engineers drive architecture — not just implement tickets
Clear impact: your code ships to millions
If you're ready to build backend systems that matter — and want ownership beyond just writing code — let’s talk.
Work arrangement
Yes
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